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338
resultados
Última actualización
02/08/2026 [07:21:00]
Resumen de: US20260221604A1
0000 A flexible printed circuit board module is a flexible printed circuit board module attachable to a battery including a plurality of cells, including: a flexible printed circuit board; a plurality of bus bars; and a case, in which the flexible printed circuit board includes a line, the plurality of bus bars is electrically connected to the line, the flexible printed circuit board and the plurality of bus bars are attached to the case, and the flexible printed circuit board is disposed between the battery and the case.
Resumen de: DE102025109952A1
Ein Verfahren zur Herstellung einer Kathodenelektrode für eine Batterie, die Lithiumionen zyklisiert, umfasst das Inkontaktbringen eines Kathodenaktivmaterials mit einer Vorläuferlösung, die eine Polyamidsäure in einem polaren Lösungsmittel umfasst, um ein Reaktionsgemisch zu bilden, das Rühren des Reaktionsgemischs für eine ausreichende Dauer, um eine Vorläuferschicht, die die Polyamidsäure umfasst, auf Oberflächen des Kathodenaktivmaterials abzuscheiden und so ein Zwischenprodukt zu bilden, das Trennen des Zwischenprodukts vom polaren Lösungsmittel und das Erhitzen des Zwischenprodukts bei einer Reaktionstemperatur, die ausreicht, um eine thermische Imidisierungsreaktion einzuleiten und die Polyamidsäure in der Vorläuferschicht in eine Polyimidschicht auf den Oberflächen des Kathodenaktivmaterials umzuwandeln. Das Kathodenaktivmaterial umfasst ein lithium- und manganhaltiges Oxid mit einem oberen Abschaltpotential von größer oder gleich 4,4 Volt im Vergleich zu Li+/Li.
Resumen de: US20260221541A1
0000 This application provides an energy storage device. The energy storage device includes a heat management module, a battery module, a first power unit, a second power unit, and a radiator module. The heat management module includes a housing, and a multi-way valve, a first evaporator, and a condenser that are disposed in the housing. The housing includes a plurality of first interfaces. A battery heat exchange plate, a first power circuit heat exchange plate, a second power circuit heat exchange plate, and a radiator are connected to the multi-way valve through corresponding first interfaces respectively. The energy storage device can efficiently adjust and control temperatures of a battery and the two power circuit heat exchange plates.
Resumen de: US20260221512A1
Provided is a nonaqueous electrolyte battery in which not only the generation of a gas during high-temperature storage but also an increase in the battery resistance are inhibited. The negative electrode contains an active material containing metal particles alloyable with Li, and graphite composed of Si or a Si metal oxide. The nonaqueous electrolyte solution contains a compound represented by Formula (A); a cyclic carbonate having an unsaturated carbon-carbon bond; and at least one compound selected from the group consisting of compounds represented by the following Formula (B) or (C).
Resumen de: US20260223315A1
A system for supplying power to at least one power distribution and data hub using a portable battery pack including a battery enclosed by a wearable and replaceable pouch or skin is disclosed, wherein the pouch or skin can be provided in different colors and/or patterns. Further, the pouch or skin can be MOLLE-compatible. The battery comprises a battery element housed between a battery cover and a back plate, wherein the battery element, battery cover, and back plate have a slight curvature or contour. Further, the battery comprises flexible leads.
Resumen de: US20260223310A1
A wiring module is to be attached to a plurality of power storage elements and includes a plurality of circuit boards, a plurality of wires and a protector for holding the plurality of circuit boards and the plurality of wires. The wire is connected to the circuit board. At least some of the plurality of wires are integrally bundled to constitute a main line. The protector includes a placing surface, on which the circuit boards are placed, a wire accommodating portion for accommodating the plurality of wires and a main line accommodating portion overlapped on the wire accommodating portion in a first direction orthogonal to the placing surface for accommodating at least a part of the main line. The plurality of wires include at least one overlapping wire to be disposed to overlap the main line when viewed from the first direction.
Resumen de: US20260221603A1
A battery cell and an electric device comprising same. The battery cell comprises an electrode assembly, which comprises a positive electrode sheet and a separator, wherein the positive electrode sheet comprises a positive electrode current collector and a positive electrode membrane layer arranged on at least one surface of the positive electrode current collector, the positive electrode membrane layer comprises a positive electrode active material, the positive electrode active material comprises a layered lithium-containing transition metal oxide, and the volume distribution particle size Dv50 of the positive electrode active material is smaller than or equal to 6.5 μm; and the separator comprises a porous substrate and a porous coating arranged on at least one surface of the porous substrate, and the porous coating comprises a fiber material and a granular filler. The electric device can make a battery have a high energy density, good low-temperature power performance and cycling performance.
Resumen de: US20260221610A1
0000 A battery cell, a battery, and an electric apparatus are described. The battery cell includes a housing body, an electrode assembly, and a current collecting disc. The electrode assembly is installed in the housing body, and the electrode assembly is provided with a tab. The current collecting disc includes a first connecting piece and a second connecting piece, where the first connecting piece is mechanically connected to the second connecting piece, the first connecting piece is welded to the tab, and the second connecting piece is welded to the housing body. The first connecting piece is welded to the tab, the second connecting piece is welded to the housing body, and the first connecting piece is mechanically connected to the second connecting piece, which can prevent the occurrence of cracks due to welding of the first connecting piece to the second connecting piece to a certain extent.
Resumen de: US20260221520A1
0000 A secondary battery includes a housing and an electrode assembly. The electrode assembly is accommodated in the housing, and the electrode assembly is bent toward a first direction (X). The electrode assembly includes a first electrode plate and a second electrode plate. The first electrode plate includes a first current collector and a first active material layer arranged in a stacked manner, where along a thickness direction of the first electrode plate, the first current collector consists of two surfaces arranged opposite each other, and both surfaces are provided with the first active material. The second electrode plate includes a second current collector and a second active material layer arranged in a stacked manner. Multiple first protrusions are formed on a surface of the first electrode plate, and the multiple first protrusions are located in the first coated region.
Resumen de: US20260221514A1
0000 A preparation processes of an all-solid-state-battery (ASSB) element or of an ASSB including a halide solid electrolyte, wherein the processes includes a procedure of oxidation and an outgassing procedure.
Resumen de: US20260221425A1
0000 The present invention relates to a positive electrode active material for a lithium secondary battery, which comprises: a core including a layered lithium transition metal oxide containing 60 mol % or more of nickel (Ni) based on the total moles of transition metals; and a coating layer disposed on the core and comprising cobalt (Co), aluminum (Al), or a combination thereof, wherein the positive electrode active material is composed of a single particle, and the coating layer is formed in an island-type structure.
Resumen de: US20260216828A1
0000 A laser notching apparatus capable of forming an electrode tab on an electrode sheet through a notching process includes a laser unit configured to emit a laser beam onto the electrode sheet, a rotating drum which is in contact with the electrode sheet to move the electrode sheet, a fixed drum positioned on one side of the rotating drum in an axial direction, and a scrap-suctioning part provided in the fixed drum and configured to suction a scrap that is cut from the electrode sheet by the laser beam.
Resumen de: US20260222522A1
0000 Disclosed in embodiments of the present disclosure are a battery cell identification method and system. The method is applied to a battery cell identification system, and the identification system comprises: a camera, an industrial personal computer, and a production execution system. The method comprises: when the camera reaches a preset photography position, the camera photographs a battery cell to be identified, to obtain image data, and sends the image data to the industrial personal computer; the industrial personal computer performs image processing on the image data to obtain an identifier of said battery cell, and sends the identifier to the production execution system; and the production execution system determines an identification result of said battery cell on the basis of production information in the identifier.
Resumen de: US20260217476A1
0000 A feeding apparatus comprises a material rack, a workpiece conveyor line, and a transfer mechanism, wherein the material rack is provided with at least two layers of bearing portions, which are arranged in sequence at intervals in a first direction, the bearing portions on the same layer define a workpiece bearing space for accommodating a workpiece, and the bearing portions can perform reciprocating motion in the first direction along with the material rack; the workpiece conveyor line is used for conveying the workpiece, the conveying path of the workpiece conveyor line extending in a second direction that intersects with the first direction; and the transfer mechanism is configured to enter and exit the workpiece bearing space, the transfer mechanism being used for transferring the workpiece from the workpiece bearing space to the conveying path of the workpiece conveyor line.
Resumen de: US20260216735A1
0000 The various embodiments of the present invention provide a system and method for segregation of materials from shredded Lithium-ion batteries. The embodiments also provide an integrated mechanism to segregate metal, polymer and black-mass from shredded Lithium-ion batteries. The present invention provides a system for classification and segregation of shredded material from Lithium-ion batteries through agitation and density separation processes. The system is designed to perform three tasks in a sequential manner: firstly, to open up the layers of batteries i.e., to separate the layers of the different material; secondly, to separate the polymers and black-mass from the layers; and, thirdly to separate the foils of the batteries into low/high density material, suspension and by brittleness of material. The invention provides a system for an optimized separation and segregation of a plurality of materials from shredded Lithium-ion batteries.
Resumen de: US20260217545A1
The invention relates to a process for preparing composite particles, the process comprising the steps of: (a) providing a plurality of porous particles in a pressure reactor; (b) contacting the plurality of porous particles with a silicon precursor gas at conditions effective to cause deposition of silicon in the pores of the porous particles to provide composite particles comprising a porous particle framework and elemental silicon within the pores of the porous particle framework; and (c) during step (b), withdrawing an effluent gas from the pressure reactor, wherein the silicon precursor gas is introduced into the pressure reactor continuously.
Resumen de: US20260221420A1
The present invention relates to a zinc electrode (100) on which a solid metallic zinc layer (300) is electrodeposited, an electrochemical cell and a method for zinc electrodeposition in the electrochemical cell. According to the invention, a zinc electrode (100) is provided, wherein the zinc electrode (100) comprises a current collector material (200) on which a zinc layer (300) is electrodeposited, wherein the zinc layer (300) appears as compact solid metal, comprises a boulder-like and/or layerlike microstructure, and is adherent with a compact porosity.
Resumen de: US20260221484A1
A sealing apparatus may include a pair of sealing tool assemblies of an exothermic sealing tool, an endothermic sealing tool and an endothermic/exothermic device. The exothermic sealing tool and the endothermic sealing tool each may extends along a widthwise direction of a pouch, and may be juxtaposed with each other along a lengthwise direction of the pouch. The endothermic/exothermic device may be interposed between the exothermic sealing tool and the endothermic sealing tool to radiate heat to the exothermic sealing tool and absorbs heat from the endothermic sealing tool.
Resumen de: US20260216733A1
0000 The various embodiments of the present invention provide provides a single integrated system that is designed to shred Lithium-ion batteries and handle all the associated complex processes and effects. The present invention also provides a system for classification of shredded material. The system comprises a hourglass shaped apparatus and the shredder is placed at the neck of the apparatus. The upper bulb of the hourglass shaped apparatus is electrically heated/cooled using submerged water heater/chillers. and comprises a chamber at the top for collecting exhaust gases. The lower bulb of the hourglass shaped apparatus includes a screen placed at the middle of the chamber with a tilt and a shaking mechanism. This is a sieve arrangement, and it is used for classification of undersized and oversized material. The gases exhausted during shredding operation are collected at top and are sent to a scrubber to neutralize any acidic gases.
Resumen de: US20260221798A1
A battery pack includes a housing and at least one battery cell located within the housing, a charging and discharging port disposed on the housing, the charging and discharging port is provided with a connection terminal, the connection terminal is configured to be connected to the battery cell; the external device is configured to be connected to the battery cell through the charging and discharging port and configured to charge or obtain electrical energy from the battery cell; the battery pack is discharged at a continuous discharge rate of greater than or equal to 4 C at normal temperature, the absolute temperature of the battery pack is less than the charging protection temperature when the discharge process is completed.
Resumen de: US20260221615A1
0000 There is disclosed herein a cylindrical secondary cell (1), comprising a cylindrical enclosure (2) comprising a first enclosure end (2a ), a second enclosure end (2b ) and an enclosure sidewall (2c ) extending between the enclosure ends (2a , 2b ), wherein at least one enclosure end (2b ) is open. The 5 cell further comprises an electrode roll (20), a lid (10), and a current collector disc arranged between the lid and the electrode roll (20) and in direct electrical contact with the electrode roll (2). The cylindrical enclosure (2) comprises a flat flange section (2f ) extending from the enclosure sidewall (2c ) at the open enclosure end (2b ), and the radially outermost portion of the lid 10 (10 ) is configured to abut and match the flat flange section of the cylindrical enclosure, and is welded to said flat flange section (2f ).
Resumen de: US20260217535A1
Provided are a positive electrode material and a preparation method thereof, and a lithium ion battery. The preparation method includes: performing first mixing on a first lithium source, a metal phthalocyanine complex, a first manganese source, and a first phosphorus source to obtain a first mixed system containing a seed crystal; performing second mixing on the first mixed system, a second lithium source, an iron source, a second manganese source, and a second phosphorus source to obtain a second mixed system containing a precursor; and sintering the second mixed system in a protective atmosphere to obtain a positive electrode material, where a molar ratio of the first lithium source, the first manganese source, and the first phosphorus source is a1:x1:1, a1 is 1.01 to 1.03, and x1 is 0.5 to 0.8; and a molar ratio of the second lithium source, the iron source, the second manganese source, and the second phosphorus source is a2:(1−x2):x2:1, a2 is 1.03 to 1.10, and x2 is 0.5 to 0.8. The positive electrode material has excellent compaction density and structural stability.Provided are a positive electrode material and a preparation method thereof, and a lithium ion battery. The preparation method includes: performing first mixing on a first lithium source, a metal phthalocyanine complex, a first manganese source, and a first phosphorus source to obtain a first mixed system containing a seed crystal; performing second mixing on the first mixed system, a second lithium source,
Resumen de: US20260221612A1
A battery cell, a cylindrical battery, and an electrical device are provided. The battery cell includes a wound battery cell body. The wound battery cell body includes a first electrode plate, a second electrode plate, and a separator that are wound. The electrode plate includes an electrode plate body and an active substance layer. The electrode plate body includes a coating region and a bare foil region connected to a side of the coating region in a winding axial direction. The active substance layer is covered on the coating region. At least a part of the bare foil region is suitable for being bent into a tab portion, and the tab portion includes a plurality of first tab groups spaced apart in a winding circumferential direction.
Resumen de: US20260219238A1
Aspects of the present disclosure are directed to a suite of testing apparatuses and non-destructive, acoustic inspection methods for scanning and inspecting batteries to determine and characterize various physical phenomena in these batteries. In one aspect, a rastering system for non-invasive and acoustic inspection of battery cells includes a holder for placing a battery cell inside the system for the acoustic inspection, at least one transducer configured to perform acoustic measurements on the battery cell, and a controller configured with inspection parameters for performing the acoustic measurements, the inspection parameters being dynamic and interchangeable depending on at least one or more of a shape, a size, and a form factor of the battery cell.
Resumen de: US20260217489A1
0000 The disclosure provides a material strip tension adjusting mechanism and a stacking machine. The material strip tension adjusting mechanism includes: a moving mechanism; a bracket including a fixed bracket and a movable bracket, the fixed bracket being provided on the moving mechanism; an elastic member, a first end of the elastic member connected to the fixed bracket, and a second end of the elastic member connected to the movable bracket; a first clamping assembly including a first clamping member; and a second clamping assembly which is provided on the movable bracket.
Resumen de: US20260221607A1
0000 A battery cell, comprising: a current collector assembly comprising a main body and current collector tabs, wherein the main body is provided with a connecting end surface, each current collector tab comprises a first portion and a second portion which are connected to each other, the first portion is connected to the connecting end surface, the second portion protrudes from the first portion in the thickness direction of the main body, and the first portion, the second portion and the main body together define a groove; and metal strip tabs each comprising a protruding portion, a connecting portion and a body portion, wherein the connecting portion is connected to the body portion and protrudes from the body portion in the thickness direction of the main body, and the protruding portion is connected to the connecting portion and protrudes from the connecting portion in the width direction of the main body.
Resumen de: US20260221598A1
An electrode assembly comprises a first electrode plate, a second electrode plate and a separator. The second electrode plate is stacked with the first electrode plate in the thickness direction of the first electrode plate, and the polarity of the second electrode plate is opposite to that of the first electrode plate. The separator isolates the first electrode plate from the second electrode plate, and is stacked with the first electrode plate in the thickness direction of the first electrode plate. The separator, the first electrode plate and the second electrode plate are wound to form a whole. At a starting end and/or an ending end of the winding of the electrode assembly, at least one of the first electrode plate and the second electrode plate is fixed to the separator by using a connector.
Resumen de: US20260221568A1
A method of manufacturing a battery enclosure for an automobile, including forming a battery housing, including: (i) forming a unitary seamless liner that defines the battery storage cavity, and storage cavity facing coolant channels, the liner is optionally: compression molded; injection molded; or thermoformed, which includes heating a continuous and seamless plastic sheet, attaching via vacuum adsorption the plastic sheet to an inner surface of a mold that is shaped as the battery storing cavity, and cooling the plastic sheet; (ii) providing an outer shell that is optionally: (a) inductive for charging the battery cells within the enclosure; and (b) configured for transmission of radio-frequency signals therethrough; (iii) filling the core cavity with foam; forming coolant inlet and coolant outlet ports through the housing; (v) forming an electronics feed-through port through the housing; and releasably connecting a lid to a housing opening, thereby define the enclosure.
Resumen de: US20260219326A1
An active fault detection method of an energy storage system, and the energy storage system are provided. The active fault detection method of the energy storage system includes: a step of causing the state of charge of an energy storage battery to reach a first preset value; a discharge time acquisition step of causing the energy storage battery to discharge at constant current a until the state of charge thereof reaches a second preset value, stopping discharging, and acquiring a discharge time T, wherein the second preset value is less than the first preset value; and judging whether the discharge time T is less than or equal to a preset discharge time t, if so, judging that the energy storage battery has a hidden fault or the service life thereof is seriously shortened, and if not, judging that the energy storage battery is normal.
Resumen de: US20260221488A1
Proposed is an electrode assembly for a secondary battery, the electrode assembly includes a stacked body including a first electrode plate, a second electrode plate, and a separator interposed between the first electrode plate and the second electrode plate, and an outer periphery of the stacked body may be wound with the separator for exterior finishing. In addition, the present disclosure may include a method of manufacturing an electrode assembly for a secondary battery that is externally finished with a separator.
Resumen de: US20260221577A1
0000 A battery cell includes a case; an electrode assembly including a positive electrode, a negative electrode, and a separator, accommodated in the case; and a venting guide member having a guide groove therein into which a sealing portion of the case is at least partially inserted, and pressing the case to delay opening of the case.
Resumen de: US20260219331A1
0000 A method for identifying an internal resistance consistency fault in an energy storage battery and an energy storage system are provided. The method for identifying an internal resistance consistency fault in an energy storage battery includes: setting an upper limit of cell internal resistance deviation threshold; determining a relationship expression of reference internal resistance of a cell with respect to a reference temperature and reference capacity of the cell; acquiring external circuit resistance of each battery cell and current cell internal resistance; determining an actual cell internal resistance; acquiring reference internal resistance under the reference temperature and reference capacity conditions; comparing actual cell internal resistance with a same serial number in different battery modules with reference internal resistance with the same serial number to obtain an internal resistance deviation value; and determining whether the internal resistance deviation value is greater than the cell internal resistance deviation threshold.
Resumen de: US20260221507A1
Provided is a non-aqueous electrolyte comprising a lithium salt, an organic solvent; and an additive, wherein the additive includes at least one selected from a compounds represented by Formula 1 or Formula 2:wherein in Formula 1, n1 is an integer from 0 to 18, and in Formula 2, n2 is an integer from 0 to 18, and L is an alkylene group having 1 to 10 carbon atoms.
Resumen de: US20260217992A1
0000 A carbon material dispersion may reduce a wide range of microorganisms, such as bacteria, molds, and yeasts, without adversely affecting other blending components, have high antiseptic and antibacterial effects, and high durability with a small amount over a long period of time under any environment, and thereby achieve both high dispersibility and storage stability. A slurry composition for a negative electrode for a secondary battery may use the dispersion, which is suitable for producing a battery such as a lithium ion battery and an electrode. Such a carbon material dispersion may contain at least a carbon material containing carbon nanotubes, a dispersant, a preservative, and a liquid medium. The preservative may contain a triazine-based compound and at least one of: a iodopropargyl-based, pyridine-based, pyrithione-based, oxyquinoline-based, benzothiazole-based, isothiazoline-based, and/or dithiol-based compound
Resumen de: US20260221508A1
0000 Provided are an additive, an electrolyte comprising same, and a lithium ion battery. The additive includes 3-(N,N-dimethylamino)propyltrimethoxysilane and a sulfonyl silane compound, and the sulfonyl silane compound has the structure as represented by formula (I). The additive of the present application can have a relatively low HOMO level and a relatively high LUMO level, and can form a stable interfacial film, thereby effectively isolating an electrolyte from the positive and negative electrodes, avoiding an oxidation reaction between the electrolyte and the positive and negative electrodes, reducing the generation of HF, thus reducing the HF corrosion on the positive electrode, inhibiting the gas production of a battery at a high temperature, and improving the high-temperature storage performance and the high-temperature cycle performance of the battery. The formed interfacial film is compact and rich in inorganic substance, and achieves both low-temperature performance and rate capability.
0000
Resumen de: US20260221492A1
Provided in the present disclosure are an interface-free low-impedance high-safety all-solid-state battery and a preparation method therefor. In the present disclosure, uniform permeation and wetting is realized by means of a low-temperature method, and a temperature is maintained at 15° C. to 20° C., such that an electrolyte mixed solution before polymerization uniformly permeates into a positive electrode, a negative electrode, and a diaphragm of a battery cell; and then the temperature is gradually increased in a progressive manner, such that a second mixed solution undergoes a polymerization reaction. Therefore, the polymerization is uniform during in-situ polymerization, and a battery is low in interface impedance, good in consistency and stability, and high in first-time cycle efficiency. An all-solid-state battery having a unique interface-free stereoscopic net structure is manufactured, thereby improving the first-time cycle efficiency, and improving the overall electrochemical performance of the battery, and finally industrialization is easily realized.
Resumen de: US20260221585A1
0000 A battery includes a battery case, a battery cell, an elastic sealing member and a conductive pillar. The battery case and the elastic sealing member are connected and define an accommodating cavity, and the battery cell is arranged in the accommodating cavity. A through hole which extends in a first direction and is used for communicating the outside with the accommodating cavity is formed in the elastic sealing member, with one end of the conductive pillar passing through the through hole and being electrically connected to the battery cell, and the other end of the conductive pillar protruding out of the elastic sealing member. A pressure relief portion is arranged on the elastic sealing member, and the pressure relief portion is configured to rupture when the pressure in the accommodating cavity is greater than a pressure relief threshold, so as to release the pressure in the battery.
Resumen de: US20260221523A1
A winding core central pin is provided and includes a support rod and a plurality of support ribs. The support rod is cylindrical. The plurality of support ribs is arranged along a circumferential direction of an outer wall of the support rod and have an equal inclination angle with respect to the outer wall of the support rod. The plurality of support ribs is configured to abut against an inner wall of a center hole of a winding core. An avoidance space is defined between every two adjacent support ribs of the plurality of support ribs to allow an electrolyte to flow through the avoidance space.
Resumen de: US20260221561A1
A battery includes a metal housing, a battery cell, an electrically conductive column and an abutting member, the battery cell being accommodated in the metal housing, the battery cell comprising a battery cell body, a first tab and a second tab, a first end of the electrically conductive column being conductively connected to the first tab, a second end of the electrically conductive column being located outside the metal housing, the second tab having a tab protrusion protruding from the battery cell body, and the abutting member being accommodated in the metal housing and used to press the tab protrusion against an inner surface of the metal housing such that the tab protrusion is in conductive contact with the metal housing.
Resumen de: US20260221421A1
0000 In an aspect, a lithium-ion battery anode composition comprises a porous composite particle comprising carbon (C) and an active material comprising silicon (Si), wherein the carbon is characterized by a domain size (r), as estimated from an atomic pair distribution function G(r) obtained from a synchrotron x-ray diffraction measurement of the porous composite particle, ranging from around 10 Å (1 nm) to around 60 Å (6 nm). In a further aspect, a carbon material for use in making an anode composition for use in a Li-ion battery is characterized by a domain size (r), as estimated from an atomic pair distribution function G(r) obtained from a synchrotron x-ray diffraction measurement of the carbon material, ranging from around 10 Å (1 nm) to around 60 Å (6 nm).
Resumen de: US20260221524A1
0000 The present invention provides a metal foil (100) having significantly improved resistance to edge breakage by selectively increasing an elongation of edge portions (60) at both ends of the metal foil, and to an electrode for a secondary battery and a secondary battery including the metal foil.
Resumen de: US20260221515A1
Disclosed in the present disclosure is a solid-state battery and a preparation method therefor. According to the preparation method, for a solid-state lithium-ion pouch battery using an in-situ polymerization method, an interface-free effect can be achieved through a two-time liquid injection process, thereby allowing an electrolyte solution to undergo full formation before in-situ polymerization, a full reaction, full gas production and degassing, and achieving the purposes of bubble-free solidification, improving initial efficiency and improving cycle performance of a battery cell. With respect to the problem that initiators cannot be injected, an initiator is mixed with a small amount of a volatile solubilizer to form a second polymer precursor, a first polymer precursor and the second polymer precursor are injected separately, The second polymer precursor and the first polymer precursor can be fully mixed by the in-situ polymerization under a certain polymerization pressure, thereby making a polymerization reaction more uniform.
Resumen de: US20260221521A1
A technique for suppressing formation of a black region in a wound electrode body is provided. A method for fabricating a nonaqueous electrolyte secondary battery disclosed here includes: an assembly step of constructing a secondary battery assembly including a wound electrode body; and an initial charging step of performing initial charging on the secondary battery assembly. In the initial charging step, the secondary battery assembly is charged at a first charging rate until a negative electrode potential with respect to a lithium metal reference (vs. Li/Li+) of the secondary battery assembly reaches at least 0.5 V, and a remaining gas amount of the wound electrode body at the end of the initial charging step is 58 cc or less.
Resumen de: US20260221414A1
0000 A method for manufacturing a lithium secondary battery, including preparing a battery cell including a positive electrode, a negative electrode, and an electrolyte and activating the battery cell by charging and discharging the battery cell at least one time. The positive electrode includes a lithium-rich manganese-based oxide in which the content of manganese of all metals excluding lithium is greater than 50 mol %, and a ratio of the number of moles of lithium to the number of moles of all metals excluding lithium (Li/Me) is greater than 1 The step of activating includes a first charging step of charging at SOC 5 or less in a constant current mode (CC mode), a second charging step of terminating charging at SOC 80~SOC 98 from a time point when the charging is terminated in the first charging step, and a discharging step performed once the charging steps are completed.
Resumen de: US20260221575A1
0000 A battery pack for powering a power tool. The battery pack includes a modular construction to enable improved manufacturability and scalability. The battery pack incorporates a set of modular battery cell holders. The battery pack incorporates a set of battery straps to electrically connect adjacent modular cell holders. The battery pack incorporates a set of connectors and the set of battery straps to electrically and mechanically connect the set of modular battery cell holders to a printed circuit board.
Resumen de: US20260221791A1
An energy storage system includes a common-mode arcing detection function and a photovoltaic energy storage device. The energy storage system further includes a battery cluster, a common-mode current detection unit, and a controller. The controller is configured to control a path between the battery cluster and an output end of the energy storage system to be cut off when a frequency domain component of a common-mode current detected by the common-mode current detection unit is greater than a first preset amplitude
Resumen de: US20260221433A1
0000 Provided are an anode active material for a lithium secondary battery and a method of preparing the same, wherein the anode active material for a lithium secondary battery includes a silicon-carbon composite including a porous carbon material and a silicon coating layer positioned on the porous carbon material; a metal compound layer positioned on the silicon-carbon composite and including a metal compound that is metal oxide, metal nitride, or a mixture thereof; and a carbon coating layer surrounding the silicon-carbon composite and the metal compound layer positioned on the silicon-carbon composite.
Resumen de: US20260221481A1
In this disclosure, an ion-conducting membrane, a component having the ion-conducting membrane and a process for making the membrane and the component are disclosed. The ion-conducting membrane includes a homogenous blend and one or more additives. The selected one or more polymers are present in a mass-percentage in a range from 1% to 40. The present ion-conducting membrane simultaneously increases the power and efficiency of the devices by combining advances in materials chemistry, nanotechnology, and manufacturing. The present ion-conducting membrane overcomes limitations in the currently known technologies without compromising the advantageous properties. The present membrane provides non-linear performance enhancement in electrochemical devices that leads to overall system level cost reduction.
Resumen de: US20260221605A1
There is disclosed herein a cylindrical secondary cell (1) and a method of manufacture thereof. The cell comprises a cylindrical enclosure (2) for housing an electrode roll (20), comprising a first and second enclosure end (2a, 2b) and an enclosure sidewall (2c) extending therebetween, wherein at least one enclosure end (2b) is open, a lid (10), and a current collector disc (24 ) for arranging in direct electrical contact with the electrode roll (20). The cylindrical enclosure (2) comprises a reduced radius section (2r) at the open enclosure end (2b), the current collector disc (24) comprises a first flange section (24f) that is configured to abut the reduced radius section (2r) at an outer or inner surface thereof, and the lid (10) comprises a second flange section (10f) that is configured to surround the first flange section (24f) and the reduced radius section. The lid (10) and the current collector disc (24) are configured to be attached to the cylindrical enclosure (2) by the first and second flange sections (10f, 24f) being attached to the reduced radius section (2r).
Resumen de: US20260218984A1
The present invention provides an apparatus for vertical recycling of waste batteries, the apparatus including a heating part heating objects located inside a work part and a controller controlling an operation of the heating part, wherein the controller controls at least one or more of a temperature increase rate and a temperature increase time of the heating part. According to the present invention, through heat treatment based on an optimal temperature increase rate, it is possible to maximize heat treatment efficiency, since a storage part to which objects are input can be easily moved and firmly fixed and worker intervention in a high-temperature, high-pressure environment can be minimized, convenience and safety can be significantly improved, and through the present invention that adopts a vertical dry smelting method, mass treatment of objects is possible without performing pretreatment processes thereon, and the generation of harmful substances can be minimized.
Resumen de: AU2024350446A1
A positive electrode sheet, and a preparation method for the positive electrode sheet. The positive electrode sheet comprises a positive electrode current collector and a positive electrode active material layer arranged on the surface of at least one side of the positive electrode current collector, wherein the positive electrode active material layer comprises a dispersion aid, lithium iron phosphate, electrically conductive carbon black and carbon nanotubes. The materials in the positive electrode active material layer satisfy the relational expression: 30≤(B1×C1+B2×C2+B3×C3)/A×0.01≤500, where A is the mass ratio of the dispersion aid in the positive electrode active material layer, B1 is the specific surface area of lithium iron phosphate, C1 is the mass ratio of lithium iron phosphate in the positive electrode active material layer, B2 is the specific surface area of the electrically conductive carbon black, C2 is the mass ratio of the electrically conductive carbon black in the positive electrode active material layer, B3 is the specific surface area of the carbon nanotubes, and C3 is the mass ratio of the carbon nanotubes in the positive electrode active material layer. By rationally matching the specific surface areas of lithium iron phosphate, the carbon black and the carbon nanotubes with the addition amounts of lithium iron phosphate, the carbon black, the carbon nanotubes and the dispersion aid in the positive electrode active material layer, the good dist
Resumen de: US20260221436A1
A positive electrode active material includes: (1) lithium nickel-based transition metal oxide particles in which a mole ratio of nickel in the total transition metals is 80 mol % or greater; and (2) a coating layer formed on a surface of the lithium nickel-based transition metal oxide particles. The lithium nickel-based transition metal oxide particles are in the form of a single particle consisting of one single nodule or a quasi-single particle, which is a composite of up to 30 nodules. The coating layer includes cobalt and aluminum, and the aluminum is contained in an amount of 0.1 mol. to 0.5 mol. with respect to 100 moles of the lithium nickel-based transition metal oxide. A method of preparing the positive electrode active material, a positive electrode including the positive electrode active material, and a lithium secondary battery including the positive electrode.
Resumen de: US20260221597A1
A fast-charging secondary battery includes an electrode assembly. The electrode assembly includes a positive electrode plate, a negative electrode plate, and a separator. The positive electrode plate includes a positive electrode current collector, the positive electrode current collector integrally extending to form a plurality of positive electrode tabs. The negative electrode plate includes a negative electrode current collector, the negative electrode current collector integrally extending to form a plurality of negative electrode tabs. The separator includes a separator substrate, a first adhesive coating layer, and a second adhesive coating layer. The first adhesive coating layer contains a first polymer binder, an average particle size of the first polymer binder being in a range of 0.3 μm to 3 μm. The second adhesive coating layer contains a second polymer binder, an average particle size of the second polymer binder being in a range of 4 μm to 15 μm.
Resumen de: US20260221635A1
0000 An end cover, a battery cell, a battery, and a power consuming device. The end cover includes: a cover body, a first insulating member, and a second insulating member. The first insulating member is fixedly connected to the cover body, and one end of the first insulating member forms a first connecting end. The second insulating member is fixedly connected to the cover body, and one end of the second insulating member forms a second connecting end. The first connecting end and the second connecting end are oppositely disposed and fixedly connected.
Resumen de: US20260221566A1
A battery cell module includes a plurality of battery cells stacked in a first direction, and a first groove extending in the first direction is formed at each of two ends of the first side of the battery cell module. In a second direction, the two first side covers are arranged at two opposite sides of the battery cell module. First bodies of the two first side covers are substantially parallel to a third direction of the battery cell module, and each of the first side covers is provided with an abutting part. The abutting part extends from an edge of the first side cover and is substantially perpendicular to the first body and is connected to a groove wall of the first groove. The two second side covers and the two first side covers are fastened to each other. The abutting part is inserted into the first groove.
Resumen de: US20260215557A1
0000 A carry case for an electronics-enabled eyewear device has a case body defining a storage chamber between a pair of opposing main walls configured to bear against a front and a rear of the eyewear device when received in the storage chamber. A power source is housed by the case body. Two or more charging surfaces are electrically connected to the power source and located in the storage chamber for contact engagement with complementary contact formations on the eyewear device to enable charging of an onboard battery of the eyewear device. Each of the opposing main walls has mounted thereon at least one charging surface that extends along the respective main wall for a majority of a height dimension of the main wall. In some embodiments, each main wall carries a pair of charging pads spaced apart along a length dimension of the storage chamber, the charging pads being arranged such that the eyewear device is chargeable in any one of four different orientations in the storage chamber.
Resumen de: US20260221625A1
An all-solid-state battery which includes: a battery element; a positive electrode terminal; and a negative electrode terminal. The battery element has a positive and negative electrode, and solid electrolyte layer between positive and negative electrode. Positive electrode terminal is connected to positive electrode on first surface of battery element. Negative electrode terminal is connected to negative electrode on second surface different from first surface of battery element. Negative electrode includes a material that forms alloy with Li. Negative electrode terminal has a main portion including material that forms alloy with Li and coating layer covering at least a part of outer surface of main portion. At least a part of a mounting surface of the negative electrode terminal is the coating layer. The coating layer includes at least one selected from the group consisting of W, Ti, Ni, Cr, Mn, Fe, Cu, and Co.
Resumen de: US20260221788A1
0000 An electronic device and its battery balance control method are provided. The electronic device includes a battery assembly and a controller. The battery assembly includes at least two batteries and a switching component. The switching component is configured to switch a connection mode between the at least two batteries. The controller is connected to the switching component and configured to control the switching component to connect the at least two batteries in a corresponding target connection mode based at least on operating states of the at least two batteries. The operating states include at least one of a charging state or a discharging state, and the target connection mode includes at least one of a parallel connection or a series connection.
Resumen de: US20260221511A1
0000 Provided are a battery and an energy storage device. The battery includes: a positive electrode plate, a negative electrode plate, a separator, and an electrolyte solution. The positive electrode plate includes a positive current collector and a positive active material layer. The negative electrode plate includes a negative current collector and a negative active material layer. The electrolyte solution includes an electrolyte, a solvent, and an additive. A ratio of a weight of the negative active material layer per unit area to a weight of the positive active material layer per unit area is z, and z ranges from 0.46 to 0.55. The additive includes additive A, and the additive A is a substance containing an oxalic acid structure.
Resumen de: US20260221462A1
Provided is a secondary battery, where a positive electrode includes a first covered part covered with a positive electrode active material layer and a positive electrode active material non-covered part on a positive electrode foil, and a negative electrode includes a second covered part covered with a negative electrode active material layer and a negative electrode active material non-covered part on a negative electrode foil, the positive electrode active material non-covered part is joined to the positive electrode current-collecting plate at one end of an electrode wound body, and the negative electrode active material non-covered part is joined to the negative electrode current-collecting plate at the other end of the electrode wound body.
Resumen de: US20260217558A1
A positive electrode active material includes a lithium-metal composite oxide which includes secondary particles with a plurality of aggregated primary particles, the secondary particles have a multilayer structure including at least a center at which the primary particles are densely disposed, a void at which the primary particles are more sparsely disposed than the center, and a dense solid portion at which the primary particles are densely disposed, from a center of the secondary particles toward a surface a compound containing tungsten and lithium is present in a concentrated state on a surface layer of primary particles present on a surface of or inside the secondary particles and at a grain boundary between the primary particles, wherein a tap density is 1 g/cm3 or more and 2 g/cm3 or less, and a BET specific surface area is 1.45 m2/g or more and 5.4 m2/g or less.
Resumen de: US20260216824A1
A laser welding method for jointing stacked metal foils in which a plurality of copper-based foils are stacked and a tab plate formed of a copper-based material is provided. The laser welding method includes placing one end of the stacked metal foils on the tab plate; irradiating a plurality of tack welding positions on the one end of the stacked metal foils with a blue laser beam; and irradiating a welding line on the tab plate along the one end of the stacked metal foils with the blue laser beam.
Resumen de: US20260221576A1
0000 A battery module includes a cell assembly including a plurality of battery cells stacked on each other; a module case configured to store the cell assembly in an inner space and having venting holes formed thereon; and a cover member including a plurality of fire-resistant layers, which have outlet holes respectively formed thereon and are spaced apart from each other, and coupled to the outer surface of the module case such that the venting holes and the outlet holes communicate with each other. The outlet holes of one fire-resistant layer and the outlet holes of the other fire-resistant layer facing the same may be configured so as not to overlap each other.
Resumen de: US20260221535A1
0000 A thermal regulation device for an electrical component that is liable to release heat during operation. The device includes a first plate and a second plate, which is assembled with the first plate, each being delimited by edges, in order to form together a plurality of circulation channels for a heat transfer fluid. The plurality of channels define a channel zone, at least one of the plates is pressed in order to form a portion of the walls of the channels, the assembly of the two plates being carried out by laser welding at the walls of the channels. A zone defining at least partially the perimeter of the channel zone includes an assembly mechanism different from transmission laser welding, the different assembly mechanism is selected from among filler wire laser welding, adhesive bonding, friction stir welding, or a combination thereof.
Resumen de: US20260221463A1
The present invention addresses the problem of providing: a current collector in which it is possible to suppress the occurrence of voids caused by resin breakdown gases or the like that arise due to charging/discharging, etc., of a secondary battery, particularly when the current collector is used in a negative electrode; and a polyester film in which there is little occurrence of voids caused by breakdown gases or the like when charging/discharging is performed, particularly when the polyester film is used as a negative-electrode current collector. The means for solving the aforementioned problem is a current collector comprising a polyester film and a layer (M layer) that is composed of metal and/or a metal-based compound, the maximum reduction current peak intensity of the current collector in CV measurement (0.01-2.0 V, 10 cycles) being 0.000 mA/cm2 to 0.050 mA/cm2 inclusive.
Resumen de: US20260221571A1
0000 A battery module includes a module frame, a plurality of battery cells, a busbar frame, and a stopper. Each of the plurality of battery cells is accommodated in the module frame and includes an electrode lead. The busbar frame is disposed on one side of the plurality of battery cells and on which a busbar connected to the electrode lead is mounted. The stopper is disposed between the plurality of battery cells and the busbar frame, and is provided to absorb an impact applied to the battery cells. The stopper may include an exterior having an elastic material or a spongy material as well as an impact absorbing member disposed inside the exterior.
Resumen de: US20260221794A1
A disclosed charge control method is a charge control method for a nonaqueous electrolyte secondary battery. The secondary battery includes a positive electrode, a negative electrode, a separator, and a nonaqueous electrolyte. The negative electrode is a negative electrode in which a lithium metal deposits on the negative electrode during charging and the lithium metal dissolves into the nonaqueous electrolyte during discharging. The secondary battery includes a spacer for forming a space between the positive electrode and the negative electrode. The charge control method includes: a normal charging step of charging the secondary battery based on a first charging profile; a determination step of determining whether predetermined data regarding the secondary battery has reached a predetermined value; and a recovery charging step of, when it is determined that the predetermined data has reached the predetermined value, charging the secondary battery based on a second charging profile as subsequent charging. An average charge current value in the second charging profile is smaller than an average charge current value in the first charging profile.
Resumen de: US20260221513A1
An electrolyte for a lithium secondary battery of the embodiments of the present disclosure includes a fluorine-containing cyclic carbonate and a fluorine-containing linear asymmetric carbonate in a volume ratio of 1:9 to 8:2. Accordingly, the cycle life characteristics and high-voltage stability of a lithium secondary battery including the electrolyte may be improved.
Resumen de: US20260221569A1
The resin battery module includes: a plurality of pouch type or prismatic type battery cells including a battery cell terminal; a circuit board; a bus bar that is electrically connected to the battery cell terminal of each of the plurality of battery cells and the circuit board; a fire-resistant plate that is disposed between at least one set of adjacent battery cells among a plurality of battery cells arranged in one direction; a pair of end plates that are provided on both end sides of the plurality of battery cells arranged in one direction, respectively; and a pair of side plates that are coupled with the pair of end plates to form a surrounding structure accommodating the plurality of battery cells, in which at least one of the fire-resistant plate and the pair of end plates is formed of a cured product of a thermosetting resin composition.
Resumen de: US20260215363A1
The present disclosure provides a cell housing that includes a housing and also relates to a heat dissipation assembly, a mowing assembly, and a lawn mower using the same.. Four corners of the housing are detachably connected to anti-collision members each including a first transverse anti-collision part, a vertical anti-collision part, and a second transverse anti-collision part. The vertical anti-collision part is configured to surround a side of the housing. The first transverse anti-collision part and the second transverse anti-collision part extend horizontally, from upper and lower ends of the vertical anti-collision part, in a direction away from the vertical anti-collision part, and are configured to surround upper and lower ends of the housing, respectively.
Resumen de: US20260221599A1
0000 A lithium secondary battery includes a positive electrode, a negative electrode, a separator, a spacer, and a nonaqueous electrolyte. The separator is disposed between the positive electrode and the negative electrode, and the spacer is arranged between at least one of the positive electrode and the negative electrode and the separator. At the negative electrode, lithium metal deposits during charging, and the lithium metal dissolves during discharging, the spacer has a plurality of linear portions. The separator has an elongated shape having a length L1 in a first direction, and a length L2 in a second direction perpendicular to the first direction, where L1>L2, and an angle θ of the plurality of linear portions with respect to the first direction, where θ≤π/2, satisfies θ≥tan<−1 >(L2/L1).
Resumen de: US20260221539A1
0000 A power supply device includes a rack holding one or more housings, a latch mechanism that holds each of the housings, the latch mechanism provided in a part of a facing region where each of the housings and an inner face of the rack face each other, and one or more air cooling mechanisms. In the facing region, the latch mechanism includes a projection biased to protrude toward the inner face of the rack from a surface of each of the housings, and a rack-side hole opened at a position in the rack facing the projection. Each housing includes a housing-side hole formed in a surface facing the facing region to allow the projection to protrude outward, and an elastic body that presses and seals a region including the housing-side hole from an inner face side of the housing in a state where the projection protrudes from the housing-side hole.
Resumen de: US20260217557A1
The present invention relates to a method of producing a cathode active material, comprising at least partially dissolving iron fluoride trihydrate (IFH) in a polar solvent, thereby obtaining a solution; adding water to the solution, thereby precipitating a compound comprising pyrochlore iron hydroxy-fluoride hydrate (Pyr-IHFH); separating the precipitated compound from the solution; and heating the separated, precipitated compound to a temperature between 50 and 400° C., thereby obtaining the cathode active material comprising pyrochlore iron hydroxy-fluoride (Pyr-IHF), wherein adding water to the solution converts IFH to Pyr-IHFH. The invention further relates to a cathode active material comprising Pyr-IHF, a cathode comprising the cathode active material and a battery comprising the cathode.
Resumen de: US20260221628A1
A system for determining a temperature value of a battery cell is described. The system includes a post directly couplable to the battery cell. The post has a post temperature corresponding to a temperature associated with the battery cell. The system also includes a thermally conductive pad coupled to the post and a sensor. The sensor is physically coupled to the thermally conductive pad and configured to measure the temperature associated with the battery cell via the thermally conductive pad and the post. The system also includes a battery management system (BMS) that includes processing circuitry in communication with the sensor and configured to determine the temperature value of the battery cell based on the measured temperature associated with the battery cell.
Resumen de: US20260221525A1
A disclosed cylindrical nonaqueous electrolyte secondary battery includes a bottomed cylindrical battery case, a spirally-wound type electrode group, a nonaqueous electrolyte, a sealing member, a positive electrode lead, and a negative electrode lead. The electrode group includes a positive electrode, a negative electrode, and a separator. The negative electrode is a negative electrode that expands during charging and contracts during discharging. The battery case has an outer diameter of 15 mm or less. The electrode group includes a hollow portion at a center of the electrode group. The negative electrode lead is connected to a portion of the negative electrode that faces the hollow portion. In a discharged state, 0.25
Resumen de: US20260221428A1
The present disclosure relates to a negative electrode for a lithium secondary battery, including: a current collector; a first layer including a first active material including a carbon-based active material provided on the current collector; a second layer provided on the first layer and including a second active material including a silicon-based active material; and a third layer provided on the second layer and including aluminum or an aluminum-containing compound, wherein a thickness of the third layer is greater than 0 and equal to or less than 1/20 of a sum of thicknesses of the first and second layers, and to a lithium secondary battery.
Resumen de: US20260221415A1
A method for manufacturing a lithium secondary battery, the method comprising the steps of: (1) preparing a battery cell including a positive electrode, a negative electrode, and an electrolyte, wherein the positive electrode includes lithium-rich manganese-based oxide in which the content of manganese in all metals excluding lithium is greater than 50 mol %, and a ratio of the number of moles of lithium to the number of moles of all metals excluding lithium (Li/Me) is greater than 1; and (2) charging and discharging the battery cell at least one or more times to activate the battery. The activating step includes ending the charging when 1.10
Resumen de: US20260217564A1
A method for manufacturing a positive electrode active material precursor for a lithium secondary battery is provided. The method comprises preparing a metal raw material, forming a reaction solution comprising the metal raw material, and coprecipitating a metal hydroxide precursor, wherein the reaction solution further comprises an additive, and wherein the additive comprises a colloidal flocculant. The method enables the manufacture of a positive electrode active material having a high level of microstructural orientation that facilitates ion diffusion throughout the electrode material and leads to batteries having significantly improved electrochemical properties.
Resumen de: US20260221587A1
A battery store for an electrically drivable motor vehicle includes a housing, a stabilization plate, and a plurality of cells. The stabilization plate has passages. The plurality of battery cells are disposed within the cell portion and have degassing openings. The degassing openings are each formed on a side of one of the plurality of battery cells facing the stabilization plate and are each assigned to one of the passages. The passages include at least one multi-cell passage to which a plurality of the degassing openings are assigned.
Resumen de: US20260221526A1
A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a nonaqueous electrolyte, and a separator provided between the positive and negative electrodes. The positive electrode includes a positive electrode current collector and a positive electrode active material layer carried on the positive electrode current collector. The positive electrode active material layer contains a positive electrode active material, a binder, and an additive. The additive is a polymer material having a melting point or thermal decomposition temperature of 200° C. or higher and 500° C. or lower. In a cross section of the positive electrode active material layer, the polymer material forms and is dispersed as a plurality of island-shaped regions. The separator includes a base layer and a heat-resistant layer layered on the base layer. The melting point or thermal decomposition temperature of the polymer material is equal to or higher than a melting point of the base layer.
Resumen de: US20260221453A1
0000 An electrode includes: a substrate; a first active material layer and a first insulating layer that are disposed on one surface of the substrate; and a second active material layer and a second insulating layer that are disposed on the other surface of the substrate. The first insulating layer and the second insulating layer have different colors.
Resumen de: US20260221490A1
0000 A lithium secondary battery includes: a wound electrode group having a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode; a core member disposed in a hollow of the electrode group; and a nonaqueous electrolyte having lithium ion conductivity. At the negative electrode, lithium metal deposits during charging, and the lithium metal dissolves during discharging. The core member has a hollow tubular shape, and has a slit extending in an axial direction, with both end portions in a circumferential direction that regulate the slit being misaligned without abutting each other.
Resumen de: US20260221502A1
0000 A glass includes: Li and P as elements constituting a cation component; and S as an element constituting an anion component. A composition of the glass, as expressed in atomic %, satisfies Li: 30% to 42% and P: 5% to 16%, the glass has a glass transition temperature of 110° C. to 300° C., and the glass has a lithium ion conductivity of 2 mS/cm or more at 25° C.
Resumen de: US20260221564A1
An insulating member for an electrochemical device, capable of maintaining insulating properties even at high temperatures. An insulating member for an electrochemical device, containing a polytetrafluoroethylene composition containing polytetrafluoroethylene, the polytetrafluoroethylene including a tetrafluoroethylene homopolymer or a modified polytetrafluoroethylene containing a tetrafluoroethylene unit and 1.0% by mass or less of a modifying monomer unit.
Resumen de: US20260217471A1
A transfer device including a first disk configured to be rotatable based on the central axis of the disk, a second disk provided above the first disk, and a gasket interposed between the first disk and the second disk is provided. The transfer device may have a plurality of holes along a circumference of the first disk configured to attach and detach an object to be transferred.
Resumen de: US20260216747A1
An electrode producing device, for producing an electrode by transporting an electrode foil on which a coated portion of a coating layer and an uncoated portion of a non-coating layer are formed, including a transport unit configured to transport the electrode foil, a coated-portion pressurizing unit configured to pressurize the coated portion of the electrode foil transported by the transport unit, and an uncoated-portion pressurizing unit spaced apart from the coated-portion pressurizing unit and configured to pressurize the uncoated portion is provided.
Resumen de: US20260221565A1
Example embodiments provide a pack housing. The pack housing includes a center plate, side plates coupled to the center plate, and side beams coupled to the side plates, in which each of the side plates includes a reinforcing bead extending in a first direction, and the first direction is parallel to a mounting surface of each of the side plates.
Resumen de: US20260221432A1
0000 A lithium secondary battery may include a positive electrode; a silicon-based negative electrode; a separator provided between the positive electrode and the negative electrode; and an electrolyte, wherein the silicon-based negative electrode comprises a negative electrode current collector layer, and a negative electrode active material layer provided on one surface or both surfaces of the negative electrode current collector layer, and wherein the lithium secondary battery satisfies Formulas 1 and 2, Formula 1=X1≤20%, Formula 2=Y1≤10%, in Formulas 1 and 2, wherein X1 refers to a cell swelling value, and Y1 refers to a cell breathing value.
Resumen de: US20260219303A1
0000 The technology generally relates to accurately determining whether a current sensor of a battery pack is abnormal while determining a current validity of the battery pack through the current sensor. Determining whether the current sensor is sensor is based on measuring a consumption current of a battery management system for the battery pack.
Resumen de: US20260221486A1
A system for manufacturing a battery is configured to unwind an electrode sheet from a first electrode roll and wind the electrode sheet into a second electrode roll, and includes a server configured to store coordinate data of the first electrode roll and datum point data indicating datum points of the first electrode roll; a programmable logic controller (PLC) configured to load the coordinate data and the datum point data from the server; and a datum point sensor configured to sense a datum point of an electrode sheet unwound from the first electrode roll and generate a datum point sensing signal. The PLC may be configured to obtain coordinate data of the second electrode roll by calibrating inverted coordinate values of stored coordinate values included in coordinate data of the first electrode roll, based on inverted coordinate values of stored datum point coordinate values included in the datum point data and the coordinate value of the sensed datum point.
Resumen de: US20260221489A1
An electrode sheet includes a current collector and an active material layer applied on either side of the current collector. The active material layer on at least one side of the current collector is provided with a plurality of first regions in a first direction, with a region gap Dm between adjacent first regions. Each of the first regions is provided with a plurality of grooves, and adjacent grooves are spaced apart by a distance Dt in a direction perpendicular to a long axis of each of the grooves, where Dt > Dm. The first direction is a length direction or width direction of the electrode sheet.
Resumen de: US20260221446A1
A cathode material can include a substrate including an active cathode material and a coating overlying at least a portion of the substrate. The coating material may include CFx and M2CO3, wherein M may include an alkali metal. In a particular embodiment, the coating may include MF. In another particular embodiment, M may include Li.
Resumen de: US20260221449A1
The present embodiments relate to a negative electrode active material, a method for manufacturing the same, a negative electrode comprising the same, and a lithium secondary battery comprising the same. The negative electrode active material includes a core portion comprising at least one coarse graphite particle having an average particle diameter (D50) ranging from 5 to 20 μm and at least one fine graphite particle having an average particle diameter (D50) of less than 5 μm, wherein the fine graphite particles account for from 5 wt % to 30 wt % based on the total weight of the coarse graphite particles and the fine graphite particles.
Resumen de: US20260221534A1
0000 A cooling panel for regulating the temperature of a prismatic battery cell. The cooling panel comprises at least a first laminate and a second laminate, which are heat-sealed together to create a pouch, which is then disposed between a first blanked sheet and a second blanked sheet, which are pressed and affixed together, creating a frame. The pouch has an inlet and an outlet disposed within itself, allowing for a coolant to be directed through the pouch. The coolant is directed to the pouch via the inlet, causing the pouch to expand, allowing for the pouch to communicate with at least one side surface of a prismatic battery cell, allowing the cooling panel to regulate the temperature of the prismatic battery cell and preventing overheating and thermal runaway events. The coolant then exits the pouch via the outlet where the coolant can be reused for further temperature regulation.
Resumen de: US20260217556A1
Electrode materials for Li-ion batteries, Na-ion batteries, or K-ion batteries. Provided are materials that show enhanced capacity towards Li, Na, or K reactivity represented by formula AxTM1yTM2zSaClb, A being Li, Na, or K, TM1 and TM2 being 3d (Ti, V, Cr, Mn, Fe, Co, Ni, Cu), 4d (Nb, Mo, Ru, Rh) or 5d (W, Re, Os, Ir) transition metals, and x, y, z, a, and b being numbers of atoms. Also disclosed are batteries comprising the electrode materials.
Resumen de: US20260216544A1
0000 A method a process for extinguishing and halting a thermal runaway event of an internal ionic battery within an electronic device providing an internal fire suppression packet containing fire suppression chemical within the electronic device or alternatively providing a fire-proof bag with a burstable internal pouch containing a fire suppression chemical to drawn a larger electronic bag placed within and sealed within the fire-proof bag.
Resumen de: US20260221631A1
0000 A device including a conductive path for passing electric current. The device also includes a terminal of the device and a bus bar connected in the conductive path and electrically connected to the terminal of the device. The bus bar includes a first section made of a first material, a second section made of the first material, and a third section made of a second material. The third section is at least partially positioned between the first section and the second section. The second material has a lower temperature coefficient of resistance than the first material. The devices also include a plurality of voltage taps electrically connected to the bus bar. The plurality of voltage taps is operable to measure a voltage across the third section.
Resumen de: US20260221461A1
0000 A secondary battery and a method of preparing the secondary battery. The battery including an anode current collector including a plurality of porous protruded portions and non-protruded portions between the porous protruded portions, a solid electrolyte including a plurality of uptake rooms, the plurality of uptake rooms accommodating the plurality of porous protruded portions, and an insulating layer between the non-protruded portions of the anode current collector and the solid electrolyte. The plurality of porous protruded portions include a metal-containing framework and an interlayer disposed on the porous metal-containing framework.
Resumen de: US20260221498A1
The present disclosure provides a method for producing a sulfide-based solid electrolyte, in which a tetrahydrofuran-based organic solvent capable of dissolving most of a precursor mixture in a continuous phase and preventing an undissolved precursor mixture from generating precipitates caused by side reactions is used to produce a sulfide-based solid electrolyte having high purity and high ionic conductivity.
Resumen de: DE102026102762A1
Die vorliegende Offenbarung stellt eine Batteriezelle bereit, die Folgendes enthält: ein Zellengehäuse, das eine Seitenwand, die einen Aufnahmeraum darin bildet, und eine obere Platte, in der ein Durchgangsloch gebildet ist, enthält; eine Elektrodenanordnung, die in dem Aufnahmeraum des Zellengehäuses angeordnet ist; eine Isolierplatte, die zwischen der Elektrodenanordnung und der oberen Platte angeordnet ist und einen hohlen Abschnitt enthält; und einen ersten Stromabnehmer, der elektrisch mit einer ersten Elektrodenlasche der Elektrodenanordnung verbunden ist, wobei die Isolierplatte einen ersten Abschnitt, der die obere Platte berührt; einen zweiten Abschnitt, der die Elektrodenanordnung oder den ersten Stromabnehmer berührt; und einen dritten Abschnitt, der zwischen dem ersten Abschnitt und dem zweiten Abschnitt gebildet ist, enthält und wobei einer von dem ersten Abschnitt oder dem zweiten Abschnitt an einen Rand des hohlen Abschnitts angrenzt, und der andere davon an einen Rand der Isolierplatte angrenzt.
Resumen de: US20260221618A1
An electrode assembly includes a first electrode having a first electrode tab connected thereto, a second electrode having a second electrode tab connected thereto, and a separator between the first electrode and the second electrode, wherein the first electrode, the separator, and the second electrode are sequentially stacked and wound, and wherein a thickness of a distal end of a leading end of the first electrode is thinner than a thickness of a portion of the first electrode excluding the distal end of the leading end, the distal end being in a core part when the first electrode is wound.
Resumen de: DE102025103289A1
Energiemodul für eine Energiespeichervorrichtung für ein Kraftfahrzeug; wobei das Energiemodul aufweist: eine Mehrzahl von Batteriezellen zum Speichern und Bereitstellen von elektrischer Energie; eine Temperierungsanordnung, wobei die Temperierungsanordnung dazu eingerichtet ist, zum Temperieren der Batteriezellen mit einem Temperierungsfluid durchströmt zu werden; eine verschäumte Strukturanordnung, wobei die Strukturanordnung dazu eingerichtet ist, die Batteriezellen und/oder die Temperierungsanordnung zu haltern; wobei die Temperierungsanordnung eine Oberfläche aufweist; und die Strukturanordnung eine die Oberfläche kontaktierende Abdichthaut aufweist.
Resumen de: US20260221431A1
0000 A method of producing multiple particulates having pores containing Si nanowires (SiNWs) therein, comprising: (a) providing a porous conductive host structure having from 5% to 99.9% of pores; (b) introducing a halogen gas that chemically reacts with Si at a first temperature to form a silicon halide, wherein the silicon halide is selected from SiF<4>, SiCl<4>, SiI<4>, SiBr<4>, and/or SiXZ, wherein X and Z are each a halogen element and a=1-3, b=1-3, and a+b=4; (c) vaporizing the silicon halide to form a vapor phase and directing the silicon halide vapor into pores of the host and facilitating the silicon halide to decompose into a halogen gas product and solid SiNWs deposited at a second temperature in the pores to form a SiNW-inhabited porous host structure; and (d) optionally breaking and reducing said SiNW-inhabited host structure into smaller porous particles.
Resumen de: DE102025102616A1
Die Erfindung betrifft eine Elektroden-/Separatoranordnung (3) für eine Batteriezelle, die als ein Z-Stapel oder als eine Wicklung ausgebildet ist und zumindest eine Separatorbahn (S) aufweist. Erfindungsgemäß ist die Separatorbahn (S) aus einer PE- und/oder PP-Matrix (13) besteht, in der eine Elastomerkomponente (15) eingebettet, wodurch die Separatorbahn (S) elastisch nachgiebig dehnbar ist.
Resumen de: DE102025103407A1
Die vorliegende Erfindung betrifft ein Batteriemodulgehäuse (1) für eine Traktionsbatterie eines elektrisch oder teilelektrisch angetriebenen Kraftfahrzeugs. Ferner betrifft die Erfindung ein Verfahren zum Herstellen eines Batteriemodulgehäuses (1). Das Batteriemodulgehäuse (1) weist ein erstes Hohlprofil (10) und ein zweites Hohlprofil (20) auf, wobei das erste Hohlprofil (10) Seitenwände (11, 12, 13, 14) aufweist, wobei die Seitenwände (11, 12, 13, 14) des ersten Hohlprofils (10) einen ersten Aufnahmeraum für Batteriezellen umlaufend begrenzen, wobei das zweite Hohlprofil (20) Seitenwände (21, 22, 23, 24) aufweist, wobei die Seitenwände (21, 22, 23, 24) des zweiten Hohlprofils (20) einen zweiten Aufnahmeraum für Batteriezellen umlaufend begrenzen, wobei eine erste Seitenwand (11) der Seitenwände (11, 12, 13, 14) des ersten Hohlprofils (10) als Verbindungswand (11) ausgebildet ist und eine erste Seitenwand (21) der Seitenwände (21, 22, 23, 24) des zweiten Hohlprofils (20) als Verbindungswand (21) ausgebildet ist, wobei das erste Hohlprofil (10) und das zweite Hohlprofil (20) in einem oberen Randbereich der Verbindungswände (11, 21) stoffschlüssig miteinander verbunden sind und in einem unteren Randbereich der Verbindungswände (11, 21) stoffschlüssig miteinander verbunden sind, wobei die Verbindungswände (11, 21) in einem Zwischenbereich zwischen dem oberen Randbereich und dem unteren Randbereich voneinander beabstandet sind unter Ausbildung eines Zwischenrau
Resumen de: US20260221445A1
A main object of the present disclosure is to provide a cathode layer with which the decrease in capacity of a lithium ion battery due to charge and discharge can be suppressed. The present disclosure achieves the object by providing a cathode layer to be used in a lithium ion battery, the cathode layer including: a cathode active material, and an oxygen storing and releasing material, wherein the cathode active material includes a crystalline primary particle containing Li, TM, which is a transition metal, and O; the oxygen storing and releasing material is an oxide including at least one element of Ce and Zr; and a content of the oxygen storing and releasing material in the cathode layer is more than 0.5 weight % and less than 7 weight %.
Resumen de: DE102025102666A1
Verfahren (10) zum Entschichten (12) von beschichteter Folie (13), wobei das Verfahren (10) umfasst: Bereitstellen (14) von wenigstens einem Folienelement (28) mit einer Beschichtung (44); Bereitstellen (16) von wenigstens einem Trockeneiselement (26); Abtragen (18) der Beschichtung (44) von dem wenigstens einen Folienelement (28) mittels des wenigstens einen Trockeneiselements (26) durch Bewegen (20) des wenigstens einen Trockeneiselements (26) und des wenigstens einen Folienelements (28) gegeneinander.
Resumen de: US20260221602A1
0000 Provided is a separator that is further improved in heat resistance. The separator of the present disclosure includes a porous substrate and a porous layer formed on the porous substrate, and has peel strengths Ta, Tb, and Tc each satisfying at least one of Expression (1) and Expression (2) below, the peel strengths Ta, Tb, and Tc being measured under conditions of a measurement temperature of 120° C. and respective peel speeds of 1 mm/min, 100 mm/min, and 1000 mm/min. 0000 Tb / Ta ≤ 5. ( 1 ) Tc / Ta ≤ 15. ( 2 )
Resumen de: US20260221430A1
0000 Embodiments described herein relate to electrolyte solutions and methods of applying the same. In some aspects, a method can include disposing an electrode material onto a current collector and disposing an electrolyte solution onto the electrode material. The electrolyte solution includes an additive configured to reduce a contact angle that the electrolyte solution forms with the electrode material. Embodiments described herein also relate to an electrochemical cell assembly including an electrochemical cell include a semi-solid cathode material disposed on a cathode current collector, an anode material disposed on an anode current collector, and a separator disposed between the semi-solid mixture and the semi-solid cathode material. An electrolyte reservoir fluidically coupled to the electrochemical cell and configured to communicate an electrolyte to at least the separator.
Resumen de: US20260221447A1
The present application belongs to the technical field of sodium-ion batteries. Provided are cathode material and preparation method thereof, and cathode plate and sodium-ion battery. The cathode material includes a Prussian Blue material, and a molecular formula of the Prussian Blue material is NaxFeyFe(CN)zF6-z·nH2O·mHCl, where 1.90≤x≤2.20, 0.9≤y≤1.2, 4.20≤z≤5.50, 1.00≤n≤1.75, and 0.001≤m≤0.007. According to the present disclosure, the structure stability of the cathode material is improved, and an efficient diffusion channel of sodium ions is optimized at the same time, thereby improving a sodium storage capacity and cycling stability. Through a synergistic effect between the ions, the problem of a high content of crystal water in the cathode material is solved, the structure stability of the cathode material and the stability of electrochemical sodium storage performance are improved, and production costs are also reduced, thereby expanding an application range of sodium-ion batteries.
Resumen de: US20260221522A1
An alkaline secondary battery of the present invention includes a positive electrode, a negative electrode, and an electrolyte. The negative electrode contains a zinc compound and an oxalate or a hydrate thereof. The electrolyte is a solution containing at least one member selected from the group consisting of potassium hydroxide, sodium hydroxide, and lithium hydroxide, and when a concentration of the potassium hydroxide in the electrolyte is A (mol/L), a concentration of the sodium hydroxide in the electrolyte is B (mol/L), and a concentration of the lithium hydroxide in the electrolyte is C (mol/L), expressions (1) and (2) below are satisfied: Expression (1): 8.5≤A+B≤9.5, Expression (2): C/(A+B)≤0.07.
Resumen de: DE102025102624A1
Die Offenbarung betrifft einen Batteriespeicher (1) mit einem Gehäuse (4), in welchem eine Vielzahl an Speicherzellen (2) aufgenommen ist, um elektrische Energie bereitzustellen, wobei wenigstens eine Außenseite (10) des Gehäuses (4) eingerichtet ist, in Abhängigkeit eines thermischen Events einer Speicherzelle (2) ein von außen sichtbares, vorzugsweise optisches und/oder haptisches, Schadsignal (14) anzuzeigen, sowie ein Verfahren zum Erfassen eines thermischen Events in einem offenbarungsgemäßen Batteriespeicher (1).
Resumen de: US20260221600A1
0000 A bipolar stacked battery that prevents air from becoming trapped during formation of the bipolar stacked battery has a plurality of stacked battery cells. An electrically and ionically insulating frame is formed between each of the plurality of stacked battery cells.
Resumen de: DE102025103015A1
Die Erfindung betrifft ein Temperiereinrichtung (1), insbesondere zum Temperieren einer elektrischen Batterie oder einer elektronischen Komponente,- mit einer Kanalplatte (2), in welcher eine Kanalstruktur (4) mit wenigstens einem von einem Temperiermedium (T) durchströmbaren Medienpfad (5) ausgebildet ist,- mit einer stoffschlüssig mit der Kanalplatte (2) verbundenen und die Kanalstruktur der Kanalplatte (2) fluiddicht abdeckenden Abdeckplatte (3),- wobei in der Kanalplatte (2) oder/und in der Abdeckplatte (3) wenigstens ein Durchbruch (6) ausgebildet ist, über welchen die Kanalstruktur (4) fluidisch mit einer Außenumgebung (15) der Temperiereinrichtung (1) kommuniziert,- wobei auf einer der Kanalstruktur (4) abgewandten Außenseite (7) der Kanalplatte (2) bzw. Abdeckplatte (3) ein den Durchbruch (6) einfassendes und von dem Temperiermedium (T) durchströmbares Adapterbauteil (8) der Temperiereinrichtung (1) angeordnet ist, das stoffschlüssig mit der Außenseite (7) verbunden ist,- wobei am Adapterbauteil (8) ein fluidisch von dem Temperiermedium (T) durchströmbares Anschlusselement (9) der Temperiereinrichtung zum Einleiten oder Ausleiten des Temperiermediums (T) in die Kanalstruktur (4) bzw. aus der Kanalstruktur (4) befestigt ist.
Resumen de: DE102025000341A1
Die Erfindung betrifft ein Fahrzeug (10) mit einem im Bereich einer Fahrzeugunterseite (12) angeordneten elektrischen Energiespeicher (20) und einer thermischen Isolationsvorrichtung (30), welche wenigstens einen mit Luft befüllbaren flexiblen Luftbehälter (32) umfasst, wobei der wenigstens eine Luftbehälter (32) in einem Fahrbetrieb des Fahrzeugs (10) in einem entleerten Zustand an der Fahrzeugunterseite (12) angeordnet ist, und bei abgestelltem Fahrzeug (10) in einem befüllten Zustand von der Fahrzeugunterseite (12) in der Fahrzeughochrichtung (14) abgesenkt zwischen Fahrzeugunterseite (12) und einem Untergrund (50) angeordnet ist und wenigstens einen Bereich (22) unterhalb des elektrischen Energiespeichers (20) ausfüllt.
Resumen de: DE102025103154A1
Die vorliegende Offenbarung beschreibt eine Elektrode für eine Batteriezelle, insbesondere eine Lithium-Ionen-Batteriezelle oder Natrium-Ionen-Batteriezelle, mit einem Aktivmaterial und einem Binder, Leitgraphit und porösem Kohlenstoff. Außerdem ist ein Herstellungsverfahren für eine derartige Elektrode offenbart.
Resumen de: US20260221578A1
A cap assembly may include an upper cap having a first through-hole formed therein. A safety vent is positioned below the upper cap and has a second through-hole in fluid communication with the first through-hole. A lower cap is positioned below the safety vent and has a third through-hole. An insulator is positioned between the safety vent and the lower cap and having a groove formed therein that is in fluid communication with the third through-hole.
Resumen de: US20260221579A1
0000 Provided herein is a battery array comprising a housing with a base and sidewalls shaped to receive and house battery cells. The battery cells within the battery array are organized into cell groups, with an insulating layer positioned between each group. A sheet of silicate material, which includes a frangible portion above each cell group, covers the battery cells. A vent plate, positioned on top of the sheet of silicate material, encloses the sheet substantially between the vent plate and the battery cells. The vent plate is equipped with vent channels that align with the respective frangible portions of the sheet of silicate material.
Resumen de: DE102025103288A1
Vorrichtung (1) zur Herstellung von elektrischen Energiespeicherzellen für Hochvoltspeicher, insbesondere für Kraftfahrzeuge, umfassend eine Fördereinrichtung (2), die dazu ausgebildet ist, wenigstens eine Elektrodenfolie (3, 4) zu fördern, insbesondere von einer Rolle (5, 6) abzuwickeln, und eine Formungseinrichtung (7), die dazu ausgebildet ist, die Elektrodenfolie (3, 4), insbesondere an wenigstens einer Separatorfolie (15, 16), in eine elektrische Energiespeicherzelle (11) zu formen, wobei die Vorrichtung (1) eine Erfassungseinrichtung (12) aufweist, die dazu ausgebildet ist, eine Dickeninformation wenigstens einen Elektrodenfolie (3, 4) und/oder wenigstens einen Separatorfolie (15, 16) zu erfassen, die eine Dicke (D) der wenigstens einen Elektrodenfolie (3, 4) und/oder der wenigstens einen Separatorfolie (15, 16) betrifft.
Resumen de: DE102025103179A1
Die Erfindung betrifft ein Verfahren zum Ausweisen eines tiefentladenen Zustands wenigstens einer elektrischen Batteriezelle (2) eines elektrischen Batteriepacks (1) mithilfe einer Ausweiseinrichtung (3), wobei der Batteriepack (1) zwei Pole (+, -) aufweist, an welchen eine von einer elektrischen Zellspannung der wenigstens einen elektrischen Batteriezelle (2) abhängige elektrische Polspannung (U) des Batteriepacks (1) anliegt, wobei die wenigstens eine Batteriezelle (2) zur reversiblen Überführung zwischen einem tiefentladenen Zustand und einem aufgeladenen Zustand der wenigstens einen Batteriezelle (2) ausgebildet ist, wobei das Verfahren folgende Schritte aufweist: a) Erfassen der elektrischen Polspannung (U) des Batteriepacks (1); b) wenn die bei Durchführung von Schritt a) erfasste elektrische Polspannung (U) in einem vorbestimmten Bereich um 0 V liegt: Ausweisen des tiefentladenen Zustands der wenigstens einen Batteriezelle (2) mittels der Ausweiseinrichtung (3).
Resumen de: DE102025103281A1
Verfahren zur Charakterisierung einer Energiespeichervorrichtung eines elektrisch antreibbaren Kraftfahrzeugs durch einen bidirektionalen Lade- und Entladevorgang; wobei das Verfahren umfasst: Erfassen einer Diagnoseinformation zum Durchführen des bidirektionalen Lade- und Entladevorgangs, wobei die Diagnoseinformation eine die Energiespeichervorrichtung charakterisierende Zielgröße definiert und die Diagnoseinformation ein zu der Zielgröße korrespondierendes Lade- und Entladestromprofil zum Laden und Entladen der Energiespeichervorrichtung definiert; Durchführen des Lade- und Entladevorgangs durch Anwenden des Lade- und Entladestromprofils; Erfassen von einer die Energiespeichervorrichtung charakterisierenden Spannung während des Lade- und Entladevorgangs; Bestimmen, anhand der erfassten Spannung und/oder des Lade- und Entladestromprofils, der Zielgröße; und Ausgeben der Zielgröße.
Resumen de: DE102026125045A1
Die Erfindung betrifft eine Vorrichtung (2) zur Überprüfung einer Eigensicherheit einer Einzelzelle (1) gegenüber einem zellinternen Fehlerfall. Erfindungsgemäß ist die Vorrichtung (2) gekennzeichnet durch- eine mit einer Quarzglas-Lichtleiterfaser (7) optisch gekoppelte Laserquelle (6), welche zur Einkopplung von Laserlicht (L) in die Quarzglas-Lichtleiterfaser (7) ausgebildet ist, wobei die Quarzglas-Lichtleiterfaser (7) durch die Berstöffnung (B) in das Zellgehäuse (3) der Einzelzelle (1) eingeführt ist und ein freies Ende (7.1) als Auskoppelfläche der Quarzglas-Lichtleiterfaser (7) zur lokalen Temperaturerhöhung zwischen einer Separatorfolie und einer Kathodenfolie durch über die Auskoppelfläche der Quarzglas-Lichtleiterfaser (7) auskoppelbare Laserlicht (L) angeordnet ist,- eine Fixierung (8) zur Fixierung der Quarzglas-Lichtleiterfaser (7), wobei durch die Fixierung (8) zusätzlich die Berstöffnung (B) mit der durchgeführten Quarzglas-Lichtleiterfaser (7) mediendicht verschlossen ist,- ein Zelldeckel (5) und/oder Bauteil, durch welchen und/oder welches die Quarzglas-Lichtleiterfaser (7) spannungs- und knickfrei hindurchführbar ist und durch welches ein Zellinneres hermetisch abgedichtet ist,- einen in einer Aufnahme des Zelldeckels (5) und/oder des Bauteiles angeordneten Drucksensor (9), der zumindest während der Auskopplung des Laserlichtes (L) über das freie Ende (7.1) fortlaufend einen Innendruck der Einzelzelle (1) erfasst. Weiterhin betrifft die Er
Resumen de: DE102026102763A1
Die vorliegende Offenbarung betrifft eine Batteriezelle, und eine Batteriezelle gemäß einer Ausführungsform umfasst: ein Gehäuse mit einem Aufnahmeraum darin; eine in dem Aufnahmeraum aufgenommene Elektrodenanordnung; ein in dem Aufnahmeraum aufgenommenes und elektrisch mit der Elektrodenanordnung verbundenes Stromsammelelement; ein an mindestens einem Abschnitt des Gehäuses ausgebildetes Durchgangsloch; und einen Anschluss, der das Gehäuse durch das Durchgangsloch durchdringt, wobei der Anschluss einen ersten Körperabschnitt, von dem mindestens ein Abschnitt zur Außenseite des Gehäuses hin freiliegt, einen zweiten Körperabschnitt, von dem mindestens ein Abschnitt mit mindestens einem Abschnitt des Stromsammelelements in Kontakt steht, und einen zerbrechlichen Abschnitt umfassen kann, der den ersten Körperabschnitt und den zweiten Körperabschnitt verbindet und eine Dicke aufweist, die geringer ist als die Dicke des zweiten Körperabschnitts.
Resumen de: US20260221532A1
0000 A battery cell includes C cathode electrodes including a cathode active material layer arranged on a cathode current collector, A anode electrodes including an anode active material layer arranged on an anode current collector, and S separators, where C, A, and S are integers. In some examples, at least one of the C cathode electrodes and the A anode electrodes includes a negative temperature coefficient (NTC) material. In other examples, a resistive heating layer is arranged adjacent to at least one of the C cathode electrodes and the A anode electrodes and includes a layer including a negative temperature coefficient (NTC) material arranged on an electrode. The NTC material is selected from a group consisting of a metal oxide with a spinel structure, nickel-chromium (Ni-Cr) oxide, a copper-nickel (Cu-Ni) oxide ceramic including a metal oxide, and combinations thereof.
Resumen de: US20260221586A1
0000 A flue gas structure includes: a storage battery cell installed in a vehicle; a lower case disposed at a lower face of the storage battery cell and having a flow path part separated from the lower face of the storage battery cell and configuring a flue gas flow path, a contact part provided at both sides, in a vehicle width direction, of the flow path part and disposed further toward a vehicle upper side than the flow path part, and an inclined part coupling together the flow path part and the contact part; and a cooler disposed at a lower face of the contact part and receiving heat from the storage battery cell, in which the inclined part in the lower case forms an angle from 40 degrees to 90 degrees with a lower face of the storage battery cell corresponding to the flue gas flow path.
Resumen de: US20260217563A1
0000 The present invention relates to a powderous material comprising a hydroxide or oxyhydroxide of one or more metal elements for preparing a positive electrode active material for secondary batteries, wherein the one or more metal elements include at least one of Ni, Co and Mn, wherein the material comprises secondary particles comprising a plurality of primary particles, wherein the material has a median particle size D50 between 3.0 μm and 20.0 μm as determined by laser diffraction, wherein said primary particles have a particle-based thickness distribution as determined by measuring primary particle thickness in an image taken by SEM, wherein said thickness distribution has a median thickness between 180 nm and 600 nm, andwherein the material has a span value (D90−D10)/D50 being at most 0.6, preferably at most 0.4, more preferably at most 0.2.
Resumen de: US20260221442A1
The present disclosure relates to a lithium secondary battery including: a positive electrode; a negative electrode; and a separator provided between the positive electrode and the negative electrode, wherein the positive electrode includes, as a positive electrode active material, lithium composite transition metal compound particles including nickel, cobalt, and manganese, in the form of single particles, the negative electrode includes silicon-based particles as a negative electrode active material, and a specific surface area of the silicon-based particles is four times or greater than a specific surface area of the lithium composite transition metal compound particles.
Resumen de: US20260221533A1
0000 A battery module includes a battery cell stack containing a plurality of battery cells; a module frame that includes a bottom portion and two side surface portions facing each other, and accommodates the battery cell stack therein; a thermally conductive resin layer disposed between one surface of the module frame and the battery cell stack; a pad disposed on at least one end of the one surface of the module frame; and a reinforcement material disposed between the battery cell stack and the pad, wherein the reinforcement material fills a space between the battery cell stack and the pad.
Resumen de: US20260221621A1
0000 In one aspect, an electrode sheet includes a body. The body includes a coated part and a tab part in a width direction of the body. The tab part includes a plurality of tabs disposed in a length direction of the body, and each of the tabs is connected to the coated part. The body extends in the length direction between a first end and a second end (4). The tab part includes a first region located at the first end in a direction from the first end to the second end. The plurality of tabs includes a plurality of first tabs located in the first region. In the direction from the first end to the second end, widths of the plurality of first tabs in the length direction of the body gradually decrease.
Resumen de: US20260221531A1
A recovery method for recovering an electrode active material from a treatment target electrode including an electrode mixture containing the electrode active material and a binder. The recovery method includes a separation step of bringing a first treatment liquid containing an aromatic hydrocarbon compound in a reduced state and a metal ion and a second treatment liquid containing water into contact with the treatment target electrode to separate the electrode active material from the treatment target electrode.
Resumen de: US20260221443A1
This positive electrode active material is a composite oxide having a crystal structure belonging to a space group R-3m and represented by a composition formula of Li1+aNibMncXdOe, in which: X is at least one type selected from the group consisting of typical elements and transition metal elements other than Li, Ni, and Mn; a≤1.15, 0.35≤b≤0.70, 0.30≤c≤0.65, and 0≤d≤0.07 are satisfied; and e is a value satisfying electrical neutrality. The positive electrode active material has a value (α×β) of 0.090 or lower, which is the product of a Ni mixing rate α determined through Rietveld analysis and a strain β determined using the Williamson-Hall method.
Resumen de: US20260221962A1
0000 A comparator circuit includes a comparator, which detects an abnormal voltage of a secondary battery, and uses PMOS transistors or NMOS transistors used as a differential pair. The comparator circuit includes a control circuit that is configured to control voltages of two input terminals of the comparator are to be equal to each other in a standby state in which an operation of the comparator circuit is in a stop state.
Resumen de: US20260221413A1
An electrode, a secondary battery including the same and an energy storage system are provided. The electrode includes an electrode current collector and an electrode layer disposed on the electrode current collector. The electrode layer includes an active material, a conductive material, and a binder. The binder includes a fluorine-based polymer and a modified polyolefin. The fluorine-based polymer is polytetrafluoroethylene (PTFE), the modified polyolefin includes a carboxylic acid anhydride derived functional group, and an amount of the modified polyolefin ranges from 2 to 40 parts by weight based on 100 parts by weight of the binder.
Resumen de: US20260221596A1
Problem The invention has been made by focusing on the fact that a conventional separator with a specified fiber distribution or fiber orientation was unable to sufficiently control the gas absorption reaction, which is one of the basic functions of a sealed lead-acid battery, and, in order to control the gas permeation ability itself of the separator, the invention makes it possible to provide an optimum separator which can reduce the amount of adjustment of the electrolyte concentration (specific gravity) after chemical conversion in a container of a sealed lead-acid battery, and can prevent abnormal heat generation of the battery in an actual battery use environment.Solution Preparation is performed so that the gas permeation rate in a wet state of a separator is 15 mm/min or less, and/or the gas permeability in a wet state of the separator is 70% or less.
Resumen de: US20260217544A1
The present invention relates to a yolk-shell-structured silicon-carbon composite, a preparation method therefor, and an anode active material comprising same. The yolk-shell-structured silicon-carbon composite according to an embodiment of the present invention can be prepared without using strong acids, and can have uniform voids formed using, as a sacrificial layer, an inorganic layer with uniform thickness so as to accommodate, when used as an anode active material, silicon volume expansion, and thus can suppress peeling off, caused thereby, of the outermost carbon thin film. As a result, deterioration in battery performance and lifespan can be suppressed.
Resumen de: US20260221528A1
A wireless device of a battery monitoring system includes a wireless antenna and a proximate conductor that overlaps at least a portion of a projection plane of the wireless antenna in a predefined projection direction.
Resumen de: US20260221450A1
0000 An anode active material, an anode composition, an anode, a lithium secondary battery, a battery module, and a battery pack, each including porous silicon carbon composite particles. The anode active material includes porous silicon-carbon composite particles including a porous carbon scaffold and silicon provided on at least a portion of an interior or surface of the porous carbon scaffold, wherein: an amount of the silicon is 35 to 60 parts by weight based on 100 parts by weight of the silicon-carbon composite particles, a specific surface area of the silicon-carbon composite particles is 20 m<2>/g or less, and a contact angle of the silicon-carbon composite particles with water, measured on a surface of a flat film after forming the flat film, is 90 degrees or greater.
Resumen de: US20260221543A1
Systems and methods of operating aluminum-air electrochemical cells are provided, in which, following operation of the electrochemical cell(s), the alkaline electrolyte is removed from the cell(s) and a mixture of water with oxygen-rich organic solvent(s) is introduced to protect the aluminum anodes from corrosion by the electrolyte residues. For example, the cell(s) may be flooded with the mixture and then drained, or the mixture may be circulated through the cell(s). During stand-by, the mixture may be used to flood or to be circulated through the cell(s) and drained, to further enhance the operability of cell(s) during operation.
Resumen de: US20260217990A1
The present invention relates to a composition comprising a) a polyorganosiloxane functionalized with at least two Si—H groups; b) a polyorganosiloxane functionalized with at least two vinyl groups; c) micron-sized mica particles; and d) a hydrosilylation catalyst; wherein the concentration of the mica particles is in the range of from 90 to 200 parts by weight per 100 parts by weight of polyorganosiloxanes a) and b). The composition of the present invention is useful as coating material that can be applied to a battery pack casing or cover to protect against the consequences of thermal runaway.
Resumen de: US20260217534A1
0000 A process for the recovery of a useful material from a battery, comprising the steps of: comminuting, discharging and shredding a battery to form a feed stream comprising anode material, cathode material and an electrolyte; removing the electrolyte from the feed stream; separating the anode material and cathode material from the feed stream into distinct material streams using (electro)magnetic separation; and treating the anode material stream to obtain a graphite product and/or treating the cathode material stream to obtain a cathode active material product.
Resumen de: US20260221510A1
A secondary battery is provided and includes a positive electrode, a negative electrode, and an electrolytic solution. The negative electrode includes a negative electrode active material layer, and a negative electrode film provided on a surface of the negative electrode active material layer. The negative electrode film includes a fluorine compound including a carbon-fluorine bond. Based on an analysis of the negative electrode film by fluorine-19 nuclear magnetic resonance spectroscopy, two or more peaks are detectable within a range of a chemical shift of greater than or equal to −90 ppm and less than or equal to −70 ppm. A coupling constant associated with the two or more peaks is 50 Hz or less.
Resumen de: US20260219332A1
An embodiment of a battery management apparatus includes a reference information storage unit configured to store a reference profile including a reference negative electrode profile; a profile generating unit configured to generate a negative electrode profile for each battery of a plurality of batteries using the reference profile and a charging and discharging profile for each battery; a characteristic information generating unit configured to generate a plurality of negative electrode change ratios, each negative electrode change ratio comparing the negative electrode profile of a battery to the reference negative electrode profile; a calculation processing unit configured to calculate a relative difference between a first negative electrode change ratio of the plurality of negative electrode change ratios and a second negative electrode change ratio of the plurality of negative electrode change ratios; and a diagnosing unit configured to diagnose a state of the plurality of batteries using the relative difference.
Resumen de: US20260221485A1
An electrode tracking device for forming a marking on an electrode tab of an electrode being transferred in one direction, or identifying the marking formed on the electrode tab, includes: a tracking part configured to move in at least one of horizontal and vertical directions, and including at least one tracking unit selected from a marker and a reader; a guide part including a first guide with an inclined surface at one end supporting one surface of the electrode tab, and a second guide with an inclined surface positioned corresponding to the inclined surface of the first guide supporting the other surface of the electrode tab; an interlocking part including a first support member coupled to the first guide at one end and to the tracking part so that the other end can slide in upward and downward direction, and a second support member coupled to the second guide at one end and to the tracking part so that the other end can slide in upward and downward direction; and a foreign matter accommodating part open to an upper part, coupled to either the tracking part or the interlocking part.
Resumen de: US20260221506A1
0000 According to the present invention, it is possible to provide an electrolytic solution containing a polycarbonate resin, wherein: the polycarbonate resin comprises a structural unit (A) derived from a monomer represented by general formula (1) below, and an end structure of the polycarbonate resin comprises an alkenyl group; and
the electrolytic solution contains a lithium salt, a radical initiator, and a crosslinking agent.
0000
(In general formula (1), R<21>-R<24 >and R<25>-R<28 >each independently represent hydrogen, fluorine, chlorine, bromine, iodine, or an optionally substituted C1-C20 alkyl group, C6-C12 aryl group, C2-C12 alkenyl group, C1-C5 alkoxy group, or C7-C17 aralkyl group).
Resumen de: US20260221538A1
A rechargeable battery pack comprises first and second battery cell holders (62a, 62b), each having a set of cell holder terminals connected to the battery cell terminals, and a set of circuit board terminals (64a, 64b) arranged along a circuit board connector terminal edge (66a, 66b) of the respective battery cell holders (62a, 62b). The circuit board terminals (64a), terminal connection areas of the circuit board (46), and the circuit board connector terminal edges (66a, 66b) of the battery cell holders (62a, 62b) are embedded in said coherent body (80) of potting resin. A gasket compression ridge (78d) of a potting shell (78) compresses a potting gasket (52) to keep user interface elements (48) and a wireless transceiver module free from potting.
Resumen de: US20260221435A1
0000 A negative electrode including a negative electrode current collector having a roughened surface, and a negative electrode active material provided on the negative electrode current collector, wherein negative electrode active material contains negative electrode active material particles including a compound of lithium, silicon, and oxygen, negative electrode active material particles are represented by SiO
Resumen de: US20260217006A1
0000 The present invention provides a laminate that excels in elasticity as well as in both heat shielding performance and flame shielding performance in combustion and, in particular, is capable of blocking heat and flame transfer to adjacent battery cells to prevent chain explosion in the event of ignition or thermal runaway, when it is used as an inter-cell member for in-vehicle batteries. The laminate of the present invention includes an A layer including a resin and a fiber and a B layer, the laminate including a total of three or more layers of the A layer and the B layer, the laminate having no flame penetration in two-minute exposure to burner flame and being rated as V-0 or greater in a UL94 burning test.
Resumen de: US20260221451A1
An object of the present invention to provide a composition for nonaqueous electrolyte battery electrodes capable of achieving both good coatability of the composition and the suppression of expansion of electrodes obtained from the composition and an additive for nonaqueous electrolyte battery electrodes. The present invention relates to a composition for nonaqueous electrolyte battery electrodes including a binder; and an organic fiber, wherein the organic fiber has a specific gravity of 1.00 or more and a fiber length of 0.1 mm or more and 10 mm or less.
Resumen de: US20260221437A1
The present invention relates to a positive electrode active material for lithium-ion batteries, wherein the positive electrode active material comprises secondary particles comprising primary particles, wherein the primary particles have an average primary particle size (S1) as determined by SEM image analysis, wherein the positive electrode active material has an average crystallite size (S2) as determined by X-Ray Diffraction measurement, wherein S1/S2 is at least 13, and wherein the positive electrode active material has been treated with an aqueous solution.
Resumen de: US20260221418A1
A method of producing an electrode includes (a) preparing a base sheet; (b) preparing an active material film; and (c) affixing the active material film to the base sheet by passing the base sheet and the active material film through a roll gap. The base sheet includes a first region and a second region. An arithmetic mean roughness of the second region is greater than an arithmetic mean roughness of the first region. The second region is adjacent to the first region. In the (c), the active material film adheres selectively to the first region among the first region and the second region.
Resumen de: US20260221549A1
A pouch film laminate includes a base material layer; a gas barrier layer; and a sealant layer sequentially laminated. The base material layer includes a polyamide-based film, and, in a melting peak of the polyamide-based film which is obtained by differential scanning calorimetry (DSC), a ratio (H/A) of a height (W/g) (H) of the peak to a melting enthalpy (W·sec/g) (A) of the polyamide-based film is 0.03 sec−1 or more.
Resumen de: US20260221634A1
A cell stack assembly may include a cell stack including a plurality of cells, the plurality of cells having drawn out electrode leads, a busbar frame assembly including a plurality of busbars electrically connected to the electrode leads of the plurality of cells, a busbar frame supporting a busbar of the plurality of busbars, and ribs spanning between the plurality of busbars, and an insulating cover coupled to the busbar frame, the insulating cover being configured to cover the busbar frame assembly. In addition, the insulating cover may include a separation wall member formed at a location corresponding to a rib of the busbar frame assembly.
Resumen de: US20260221427A1
A negative electrode for a lithium secondary battery includes a current collector, a first negative electrode active material layer, and a second negative electrode active material layer. The second negative electrode active material layer includes a plurality of concave portions indented toward the first negative electrode active material layer and a plurality of non-concave portions, the plurality of the concave portions and the plurality of the non-concave portions are alternately arranged in a horizontal direction, and a surface of the second negative electrode active material layer has a pattern formed by a plurality of steps.
Resumen de: US20260219324A1
0000 A data processing unit is configured to calculate, on a time-series basis, the voltage difference between a reference voltage and the minimum voltage of a plurality of cells or cell blocks included in a battery pack and connected in series. A determination unit is configured to, when an increasing rate of the voltage difference is equal to or greater than a threshold, determine that a micro short circuit has occurred in the cells or cell blocks having the minimum voltage. The data processing unit calculates the increasing rate of the voltage difference by using voltage data in a period in which the State-Of-Charge (SOC) of the battery pack is within a predetermined SOC range.
Resumen de: US20260219329A1
0000 A battery temperature estimation apparatus includes a data obtaining unit configured to obtain electrochemical impedance spectroscopy (EIS) data of a battery unit, a data extracting unit configured to extract a parameter value of a designated element of an equivalent circuit of the battery unit, based on the EIS data, and an identifying unit configured to identify, based on reference parameter values according to different temperatures, obtained based on reference battery units of a same type as the battery unit, a temperature value corresponding to the extracted parameter value and identify the temperature value as a temperature value of the battery unit at a time of obtaining the EIS data.
Resumen de: US20260217561A1
0000 A method for producing a positive electrode active material for secondary batteries according to the present invention is characterized by comprising: a water washing step in which a slurry that is obtained by mixing an Ni-containing lithium transition metal oxide with water or an aqueous solution is stirred, thereby water washing the Ni-containing lithium transition metal oxide; a solid-liquid separation step in which the slurry is subjected to solid-liquid separation, thereby obtaining a cake that contains the Ni-containing lithium transition metal oxide; and a drying step in which the cake is dried. This method for producing a positive electrode active material for secondary batteries is also characterized in that a sulfonic acid compound represented by general formula (I) (wherein A represents H, Li or Na, and R represents H or a hydrocarbon group) is added to the slurry in the water washing step.
0000
Resumen de: US20260221547A1
0000 An apparatus and method for sealing a pouch-shaped battery case. More particularly, an apparatus for sealing a pouch-shaped battery case that includes a first case and a second case in which an electrode assembly is received. The apparatus includes a non-contact heating member located above or under a sealed portion at which the first case and the second case overlap each other. The non-contact heating member is configured to heat the sealed portion to a predetermined temperature such that the sealed portion can be thermally fused.
Resumen de: US20260219200A1
A system for analyzing foreign substances in a positive electrode material, includes a pretreatment part configured to prepare a monolayer sample of a positive electrode material powder, a measurement part configured to obtain an optical image of the monolayer sample using an optical microscope, and an analysis part configured to analyze the optical image of the monolayer sample and obtain information on foreign substances in the positive electrode material. Also provided is a method for analyzing metallic foreign substances in a positive electrode material.
Resumen de: US20260221448A1
A lithium iron phosphate cathode material includes a matrix and a carbon coating layer coated on a surface of the matrix. A crystal structure factor A of the lithium iron phosphate cathode material satisfies 4.600 Å−4≤A≤9.500 Å−4. The calculation formula of the crystal structure factor A is:A=C×105D(010)×V;wherein C is a crystallinity of the crystal; V is a unit cell volume; D(010) is a grain size of a crystal plane D(010), with a value satisfying 4 Å≤D(010)≤9 Å. Lithium iron phosphate cathode materials that meet the above range have excellent low-temperature electrochemical properties.
Resumen de: US20260221595A1
0000 A separator includes a substrate layer, a first adhesive layer, and a second adhesive layer stacked sequentially. Both the first adhesive layer and the second adhesive layer are disposed on at least one side of the substrate layer. Both the first adhesive layer and the second adhesive layer extend from a first end of the separator toward a second end of the separator opposite to the first end of the separator. The first adhesive layer includes first adhesive particles. The second adhesive layer includes second adhesive particles. A particle diameter of each first adhesive particle is D<1 >μm, and a particle diameter of each second adhesive particle is D<2 >μm, D<2>>D<1>.
Resumen de: US20260221527A1
A power supply unit for a launch vehicle is disclosed. The power supply unit comprises a protective housing and, within the housing, a control module and a battery holder configured to receive a plurality of replaceable lithium-ion battery cells. The control module comprises a power switching and distribution module, and a battery management and monitoring system module. The power supply unit has several advantages including improved safety, and reduced size and weight.
Resumen de: US20260221637A1
0000 A high-capacity battery and a method for repairing the high-capacity battery. The high-capacity battery includes a plurality of battery cells connected in parallel, an inner cavity of each of the plurality of battery cells includes a gas region and an electrolyte region; and the electrolyte regions of the plurality of battery cells being in communication, thereby forming a shared electrolyte system. In the high-capacity battery of the disclosure, the electrolyte regions of each of the plurality of battery cells are communicated, so that the electrolytes of all of the plurality of battery cells are in the same system, the difference among the plurality of battery cells is reduced, and the performance and cycle life of the high-capacity battery are increased.
Resumen de: US20260221493A1
The invention provides a macromonomer, an electrolyte precursor composition comprising the macromonomer, a method to prepare a solid-polymer electrolyte, a solid-polymer electrolyte, a solid-state lithium secondary battery, an electrochemical device and a device.
Resumen de: US20260218333A1
There is provided a method of recovering lithium concentrate from an ore containing spodumene. The ore is crushed to obtain a fine fraction and a coarse fraction. The coarse fraction is calcined at a temperature of from about 950 to about 1100° C. to obtain a calcined coarse fraction containing spodumene particles having a beta crystal structure. The calcined coarse fraction is selectively screened to separate out the spodumene particles and produce screened spodumene particles. A magnetic separation is performed on the screened spodumene particles to concentrate the spodumene particles and separate out non-magnetic contaminants to recover the lithium concentrate.
Resumen de: US20260221529A1
0000 Provided are a nail penetration test method and device, which can improve the nail penetration test performance. The method includes: controlling a penetrating nail to move towards the direction where the penetrating nail is penetrated into a battery cell; and when the voltage between the penetrating nail and a first electrode terminal of the battery cell exceeds a preset voltage, continuing controlling the penetrating nail to penetrate into a predetermined depth.
Resumen de: US20260221551A1
0000 A pouch film may include a base layer; a plurality of resin layers formed on one surface and the other surface of the base layer, respectively, with the base layer interposed therebetween; and a fire-resistant coating layer formed by being coated on at least one resin layer of the plurality of resin layers.
Resumen de: US20260221580A1
A battery module includes a cell stack including stacked battery cells; a module case configured to accommodate the cell stack and having a gas venting hole formed in a bottom plate located at a lower portion of the cell stack; and a venting guide unit including a needle member configured to be popped up from the gas venting hole to make a hole in an adjacent battery cell of the stacked battery cells, and a needle stopper member configured to prevent the needle member from being popped up while deformation by heat or external force does not occur to the needle stopper member.
Resumen de: US20260221411A1
0000 A method for providing a secondary includes applying an electrode slurry so that a plurality of coating lanes are formed on a first electrode sheet unwound from a first electrode roll; inspecting the first electrode sheet to collect inspection data; forming an NG mark on the first electrode sheet on the basis of the inspection data; and winding the first electrode sheet into a second electrode roll. The NG mark indicates a position of a defect on the first electrode sheet in the traverse direction.
Resumen de: US20260221434A1
A lithium silicon oxide may exhibit suppressed gas generation upon application to an aqueous slurry. The lithium silicon oxide may include a first peak having a width of 0.2 to 2.0 ppm and a second peak having a width of 3 to 10 ppm in a range of −88 to −99 ppm in a 29Si NMR spectrum obtained via 29Si solid state (magic angle spinning) MAS nuclear magnetic resonance (NMR) measurement, wherein a ratio of an integral value of the first peak to an integral value of the second peak (first peak/second peak) is greater than 0.22 and less than or equal to 0.31. A negative electrode may include the lithium silicon oxide, and a lithium secondary battery may include the negative electrode.
Resumen de: US20260221796A1
0000 A mobile power distribution system is provided. In one example embodiment, the mobile power distribution system can include a wireless module, a display with a graphical user interface, and a battery charger system. The wireless module can communicate data associated with the mobile power distribution system via one or more wireless communication links. The battery charger system can include one or more input power sources, a power bus coupled to the one or more input power sources, a communication bus coupled to the one or more input power sources and to the power bus, and one or more charger devices coupled to the power bus and the communication bus. The battery charger system can be configured to provide bus power to the one or more charger devices based at least in part on one or more arbitration schemes configured to allocate bus power between the one or more charger devices.
Resumen de: US20260221606A1
0000 A power storage device includes: an electrode group including a first electrode and a second electrode; a plurality of tabs each connected to the first electrode and overlapping each other; and a terminal member positioned opposite the electrode group with the plurality of tabs therebetween, the terminal member being welded to the plurality of tabs through irradiation with a laser in the direction from the terminal member toward the electrode group. At least a tab of the plurality of tabs that is located closest to the electrode group has a folded portion that is a part of the tab folded over itself and that has a part of a laser processing trace by the laser.
Resumen de: US20260217128A1
The present disclosure relates to a contact resistance abnormality diagnosis method that includes, receiving a plurality of first contact resistance values for a first connector assembly corresponding to a plurality of first time points from a plurality of battery swapping systems (BSSs), receiving a plurality of second contact resistance values for a second connector assembly corresponding to a plurality of second time points from a plurality of vehicles, arranging, by a central server, the plurality of first and second contact resistance values in an order of time of each of the plurality of first and second time points to generate a log table, and determining states of the battery connector, the plurality of system connectors, and the plurality of vehicle connectors based on the log table.
Resumen de: US20260216548A1
0000 Disclosed is a composition, a fire extinguishing device, and a use thereof, which can be applied to a product or element with a possibility of heat generation, ignition, and/or explosion during drive, storage, and/or maintenance processes to effectively respond to the heat generation, ignition, and/or explosion. The composition is substantially non-flammable and non-toxic.
Resumen de: US20260221540A1
0000 In one aspect, a battery pack has a cooling assembly. The cooling assembly includes a first flow channel structure and a second flow channel structure. A liquid outlet of the first flow channel structure is configured to be in communication with a liquid inlet of the second flow channel structure; and the first flow channel structure is configured to dissipate heat for a non-pole region of a battery set, and the second flow channel structure is configured to dissipate heat for a pole region of the battery set.
Resumen de: US20260221495A1
The present disclosure relates to an all-solid-state battery that can be applied to a secondary battery and that is, for example, a secondary battery using a solid electrolyte. The present disclosure provides an all-solid-state battery using a solid electrolyte, comprising: a first electrode layer; a second electrode layer positioned to face the first electrode layer; a first battery region defined between the first electrode layer and the second electrode layer; a second battery region defined in a position adjacent to the first battery region between the first electrode layer and the second electrode layer; and a cathode layer positioned in the first battery region and the second battery region.
Resumen de: US20260217482A1
Device for the energy cell manufacturing industry, comprising a feed device which is adapted to feed segments, whereinthe device further comprises at least two production devices arranged parallel to one another in the production flow, which are each adapted to perform a production step on or with a fed segment, andat least one discharge device which is adapted to discharge the segments from the production devices, whereinthe segments are transferred from the feed device to the production devices by means of a transfer device, and whereinthe device can be controlled and/or regulated by means of a control signal from a control device in such a way that a segment taken over from the feed device is transferred by the transfer device in a targeted manner to a specific production device of the at least two production devices.
Resumen de: US20260219333A1
0000 A battery energy storage system (BESS) and a method therefor is disclosed. The BESS includes a power converter system (PCS) for charging/discharging a battery including battery module(s) by using a superimposed control signal in which an electrochemical impedance spectra (EIS) reference signal for a state of health (SOH) evaluation of the battery is superimposed on a control signal for charging/discharging the battery. The EIS reference signal has a frequency selected for EIS. The BESS includes sensor(s) for detecting response data of the battery in the charging/discharging via the superimposed control signal. The BESS includes multiple levels of controller distributed in the BESS, the respective levels of controller communicating with each other. The response data being accessible to the respective levels of controller. The SOH evaluation is conducted in such a dynamic manner that the response data is processed at any level of controller to obtain a result.
Resumen de: US20260221542A1
0000 The disclosure relates to a contacting circuit board for an energy storage module, in particular a lithium-ion battery, having a flexible plastic substrate which provides first conductor tracks for an electric connection of a sensor circuit board to connection poles of the energy storage module, wherein the plastic substrate has a first large side and a second large side oriented parallel hereto, wherein one of the two large sides is equipped with a heating device and wherein contacting elements interacting with the connection poles of the energy storage module are provided which are spaced apart from the plastic substrate.
Resumen de: US20260221441A1
A positive electrode active material includes a lithium composite transition metal oxide which is in the form of a single particle and includes two or more selected from nickel, cobalt, or manganese, wherein the lithium composite transition metal oxide has a particle size distribution satisfying Expression 1:0.03≤skewnessmodevalue×3≤0.04Expression1wherein the skewness is a value calculated according to Expression 2 below:3×(volumeaverageparticlediameter(unit:μm)value)- (D50(unit:μm)value)standarddeviationoflithiumcomposite transitionmetaloxideparticlediameterExpression2
Resumen de: US20260221440A1
A positive electrode active material including a lithium composite transition metal oxide which is in the form of a single particle or of a secondary particle in which at most 10 primary particles are aggregated, and which includes two or more selected from nickel, cobalt, and manganese, wherein the lithium composite transition metal oxide has a particle size distribution satisfying Expression 1:0.04
Resumen de: US20260221592A1
0000 A battery pack according to the present disclosure is disclosed. The battery pack of the present disclosure includes: a main frame provided with an accommodating space and an open upper portion; a side beam dividing the accommodating space where a battery module is accommodated and provided with an inner space spatially connected to the accommodating space, the side beam including a gas inlet disposed at two widthwise ends thereof that spatially connect the accommodating space and the inner space; and a lid covering the accommodating space of the main frame and provided with a flowing space connected to the inner space and an exhaust outlet connected to the flowing space.
Resumen de: US20260218342A1
The present disclosure relates to composite material comprising metal, carbon and optionally heteroatoms and methods of their use in electrochemical reactions.
Resumen de: US20260221464A1
A composition for insulating coating includes inorganic particles; a rubber-based binder; a fluorine-based binder; a dispersant; and a solvent. The fluorine-based binder is included in an amount of 7 parts by weight or less with respect to 100 parts by weight of solid content excluding the solvent.The composition for insulating coating according to the present disclosure when applied to the current collector, has a thicker wet thickness, thereby suppressing the sliding phenomenon in which the slurry for electrode flows down, and has the effect of significantly reducing the sliding length of the electrode active material layer. An electrode and a method for manufacturing the electrode including the same are also provided.
Resumen de: US20260221594A1
0000 Provided is a binder composition for a non-aqueous secondary battery functional layer that inhibits the formation of aggregates in a situation in which inorganic particles are compounded and is capable of forming a functional layer that can improve high-temperature storage characteristics of a secondary battery. The binder composition for a non-aqueous secondary battery functional layer contains a particulate polymer A and a dispersion medium. The electrical conductivity of the binder composition for a non-aqueous secondary battery functional layer at a solid content concentration of 20 mass % is not less than 1.0 mS/cm and not more than 10 mS/cm.
Resumen de: US20260221627A1
0000 The present application provides a battery cell, a battery, and a power consuming apparatus, relating to the field of batteries. The battery cell includes an electrode terminal, an electrode assembly, and an adapter piece. The adapter piece connects the electrode terminal and the electrode assembly. The adapter piece includes a main body region and a thinned region that are connected. A thickness of the thinned region is less than a thickness of the main body region. The thinned region is configured to be welded to the electrode terminal. This can solve the problem that other parts are easily damaged during a process of welding the adapter piece and the electrode terminal.
Resumen de: US20260219323A1
A battery life estimation apparatus includes a charging/discharging unit configured to charge/discharge a battery and a controller configured to calculate a partial accumulative capacity by charging/discharging the battery in a partial voltage period corresponding to a period from a first voltage to a second voltage, and estimate a life corresponding to an entire voltage period of the battery by inputting the first voltage, the second voltage, and the partial accumulative capacity to an estimation model trained based on machine learning.
Resumen de: US20260221439A1
A positive electrode active material includes: (1) a lithium composite transition metal oxide which is in the form of a single particle, and (2) two or more elements selected from nickel, cobalt, and manganese. In a log scale particle size distribution curve in which an x-axis is a particle diameter (unit: μm) of the lithium composite transition metal oxide and a y-axis is a volume percentage (unit: %), when a triangle is drawn by connecting a peak point having a maximum y-value and a full width at half maximum (FWHM), a right inner angle of the triangle is larger than a left inner angle thereof, and the y-value of the peak point is 10 to 15.
Resumen de: US20260219327A1
A parameter determination apparatus may include an acquisition unit configured to acquire data about a voltage of a battery during at least a time period corresponding to an idle state of the battery, and a determination unit configured to detect changes in the voltage based on the data and determine a plurality of parameters representing a plurality of resistor-capacitor (RC) time constants included in an equivalent circuit model (ECM) of the battery based on the voltage changes.
Resumen de: US20260221572A1
0000 A battery protection member and an electronic device including the same are provided. The electronic device includes a battery and a battery protection member, wherein the battery protection member includes a plurality of porous membrane layers including pores and stacked one on another, a non-Newtonian fluid immersed in the porous membrane layers, and a pouch surrounding an exterior of the plurality of porous membrane layers.
Resumen de: US20260221456A1
0000 Aspects of the disclosure include electrodes manufactured with solid lubricant additives to improve calendering processibility. An exemplary vehicle includes an electric motor and a battery pack. The battery pack includes a battery cell that includes an anode current collector, an anode active material layer, a cathode current collector, a cathode active material layer, and a separator positioned between the anode active material layer and the cathode active material layer. The cathode active material layer includes cathode active materials, a solid lubricant additive, and, optionally, a cathode binder, a conductive additive, or both the cathode binder and the conductive additive. The solid lubricant additive includes materials each having a plate-like structure with an aspect ratio of greater than 3. The solid lubricant additive is spaced within the cathode active material layer to define channels within which the cathode active materials, cathode binder, and conductive additive reside.
Resumen de: US20260221426A1
The present disclosure relates to a positive electrode active material for a secondary battery, a positive electrode comprising the same, a secondary battery, and a method of manufacturing the same, and more particularly to a positive electrode active material comprising a core and a lithium oxide-containing coating layer comprising nitrogen.
Resumen de: US20260221487A1
A tab-through device, assembly apparatus, and assembly method for a battery are disclosed. The battery includes a housing and an electrode assembly. The housing is provided with an accommodation chamber, and a through hole is formed in the housing. The electrode assembly is arranged in the accommodation chamber. The tab-through device is configured to guide a tab part of the electrode assembly to extend out of the through hole. The tab-through device includes a clamping mechanism and a driving mechanism. The driving mechanism is configured to drive the clamping mechanism to clamp the tab part within the accommodation chamber to extend out of the accommodation chamber through the through hole. According to the above method, the present application can effectively reduce the assembly difficulty of the battery.
Resumen de: US20260219322A1
The battery diagnosis apparatus includes a data obtaining unit configured to obtain a first target full-cell profile representing a correspondence between a capacity factor of a target cell and a voltage of the target cell while a first electric stimulation is being applied to the target cell, and impedance information of the target cell, and a control circuit configured to generate an estimated full-cell profile based on the first target full-cell profile and an overpotential profile. The control circuit determines a first performance factor group as a primary estimation result for charge/discharge performance of the target cell by applying a cell diagnosis logic to the estimated full-cell profile. The control circuit determines a second performance factor group as a secondary estimation result for the charge/discharge performance of the target cell by applying a factor correction model to the first performance factor group and the impedance information.
Resumen de: US20260221613A1
0000 An electrode plate includes a current collector and an electrode tab. The current collector includes a support layer and a conductive layer. The conductive layer is located at least on a surface of a side of the support layer, and the electrode tab includes a main body portion and a connecting portion adjoining the main body portion, the connecting portion is connected to the conductive layer, and the main body portion extends in a direction away from the current collector. In an MD of the electrode plate, a length of the connecting portion of the electrode tab is greater than a length of the main body portion of the electrode tab.
Resumen de: US20260221471A1
An exemplary fuel cell system includes a housing having a fuel cell room including a fuel cell module, and an electrical equipment room that is partitioned from the fuel cell room and that includes a plurality of electrical devices. The housing includes a fuel cell room ventilation route that ventilates the fuel cell room and a plurality of electrical equipment room ventilation routes that ventilate the electrical equipment room. Furthermore, the housing has a ventilation route that ventilates the inside, an inlet of the ventilation route is provided on a side surface of the housing, and an outlet of the ventilation route is provided on an upper surface of the housing.
Resumen de: DE102025107457A1
Ein Fahrzeug umfassend einen Elektromotor und ein mit dem Elektromotor elektrisch verbundenes Batteriepack, wobei das Batteriepack eine elektrochemische Zelle umfasst, die eine Kathode, eine Anode und einen zwischen der Kathode und der Anode befindlichen Elektrolyten umfasst, wobei die Kathode ein Kathodenaktivmaterial umfasst, wobei das Kathodenaktivmaterial Nickel und mindestens einen elektrochemisch inaktiven Dotierstoff umfasst.
Resumen de: US20260221505A1
The present invention belongs to the technical field of battery materials, and relates to a solid electrolyte and a preparation method therefor, and a battery. The solid electrolyte comprises a carrier salt CaNb and a Van der Waals crystal MBy having a Van der Waals crystal structure; some of the anion donors of N in the CaNb are replaced with some of the elements B in the compound having a Van der Waals crystal structure, such that the carrier salt and the compound having a Van der Waals crystal structure form a framework structure; the dissociated cation donors of C are filled into the gap of the frame structure, some of which act as carriers for transmission in the frame structure, and the others of which form a nanocrystalline with MBy or B.
Resumen de: US20260221793A1
A battery charge and discharge system includes a cabinet, a plurality of charging and discharging units which are installed in a receiving space formed in the cabinet, a power supply device that supplies power to the plurality of charging and discharging units, and a power transmission device that electrically connects the power supply device and the plurality of charging and discharging units. Here, the power supply device may simultaneously supply power to at least two charging and discharging units among the plurality of charging and discharging units through the power transmission device.
Resumen de: DE102026102651A1
Die Erfindung betrifft eine Batterie für ein Kraftfahrzeug, umfassend, ein erstes Gehäuseteil und ein gegenüberliegendes zweites Gehäuseteil, wobei zwischen dem ersten Gehäuseteil und dem zweiten Gehäuseteil zumindest eine Batteriezelle angeordnet ist, wobei die Batteriezelle in Richtung des ersten Gehäuseteiles einen ersten Anker aufweist und in Richtung des zweiten Gehäuseteiles einen zweiten Anker aufweist, wobei der erste Anker in einer Tasche des ersten Gehäuseteiles angeordnet ist und der zweite Anker in einer Tasche des zweiten Gehäuseteiles angeordnet ist, wodurch die zumindest eine Batteriezelle an dem ersten Gehäuseteil und an dem zweiten Gehäuseteils fixiert sind.
Resumen de: US20260221458A1
A positive electrode plate includes a positive current collector and a positive electrode active material layer disposed on at least one surface of the positive current collector. The positive electrode active material layer includes a positive electrode conductive agent. The positive electrode conductive agent includes carbon black particles and first carbon nanotubes having a clustered structure. The first carbon nanotubes are composed of multiple carbon nanotube units arranged in bundles; where the particle size of the carbon black particles is R1, with 3 nm≤R1≤40 nm; a tube diameter of the first carbon nanotubes is 0.5 μm to 2 μm, and the diameter of individual carbon nanotube units within the first carbon nanotubes is R2, with 5 nm≤R2≤25 nm.
Resumen de: US20260221519A1
A secondary battery is provided and includes an electrode wound body and an outer package can. The electrode wound body includes a stacked body and has a through hole. The stacked body includes a positive electrode, a negative electrode, and a separator and is wound along a longitudinal direction of the stacked body. The through hole extends through the electrode wound body in a width direction orthogonal to the longitudinal direction. The outer package can includes the electrode wound body. The positive electrode includes a positive electrode current collector and a positive electrode active material layer. The positive electrode current collector extends in both the longitudinal direction and the width direction. The positive electrode active material layer is provided on the positive electrode current collector and includes a thin part and a thick part. The thick part has a thickness greater than a thickness of the thin part. A positive electrode active material particle is present on a surface, of the thin part, on an opposite side to the positive electrode current collector. All or a part of the positive electrode active material particle includes a deactivated part. The deactivated part has a thickness smaller than 6.1 μm.
Resumen de: US20260221591A1
0000 A battery pack includes a plurality of battery cells, a pack case having a plurality of accommodation spaces, a venting portion, and a venting path. The plurality of accommodation spaces respectively accommodate the plurality of battery cells and at least one of the plurality of accommodation spaces has a venting portion for discharging venting gas released from the battery cell to the outside of the accommodation space. The venting path is in communication with the venting portion.
Resumen de: US20260221567A1
0000 Holders configured to detachably connect to battery cells may include a first polarity bus-bar portion configured to removably contact a first polarity terminal of a battery cell when the battery cell is positioned in an assembled location. The battery cell may have at least a portion of a casing encircling an axis of the battery cell, the portion of the casing defining the first polarity terminal. The first polarity bus-bar portion may include a first displaceable portion biased towards the assembled location of the battery cell such that the first displaceable portion is pressed into contact with the portion of the casing defining the first polarity terminal when the battery cell is in the assembled location. The holder may include a second polarity bus-bar portion configured to removably contact a second polarity terminal of the battery cell when the battery cell is positioned in the assembled location.
Resumen de: US20260219325A1
One embodiment of the present invention discloses an impedance measurement device for a multi-channel battery that measures impedance in order to determine whether a battery is defective in a multi-channel battery system, wherein the impedance measurement device for a multi-channel battery includes an impedance measurement unit configured to measure impedance of a multi-channel battery including a plurality of batteries, and a sine wave application unit configured to process a sine wave and apply a sine wave to each of the batteries in order to reduce noise between the batteries.
Resumen de: US20260221494A1
Provided are a composite solid electrolyte layer and a preparation method thereof. The preparation method includes: step S1, coating a solid electrolyte raw material on two side surfaces of an aramid base film, so as to obtain a composite solid electrolyte layer precursor; step S2, covering a release film on at least one side surface of the composite solid electrolyte layer precursor, so as to obtain a first laminated structure; and step S3, performing a first hot rolling treatment on the first laminated structure, and then peeling off the release film to obtain a composite solid electrolyte layer. In the present disclosure, the solvent-free solid electrolyte raw material is used for coating, such that the problem of solvent residues is solved. The introduction of the aramid base film can provide a skeleton for the preparation of the composite solid electrolyte layer precursor. The introduction of the release film can serve to protect the composite solid electrolyte layer precursor. The composite solid electrolyte layer prepared by using the preparation method has excellent flexibility and mechanical strength and high ionic conductivity.
Resumen de: US20260221491A1
In some aspects, the present disclosure provides the use of specific carbon nanostructures as hosts for lithium. In certain aspects, the present disclosure provides a rechargeable energy source system comprising the lithium metal electrode. In certain aspects, the present disclosure provides an electrolyte composition for rechargeable energy source. The present disclosure also relates to a method of operating a system for lithium extraction from brine.
Resumen de: US20260221557A1
0000 A cell and a battery having the cell. The cell includes a housing, a cap assembly and a wound core. The housing is an elongated configuration and has an opening at a top end, the cap assembly is encapsulated at the opening of the housing and defines a receiving space together with the housing, and the wound core is adaptively shaped to be accommodated in the receiving space.
Resumen de: US20260221931A1
0000 A foldable solar panel including at least two solar modules mounted to a substrate. The foldable solar panel includes hook and loop tape to secure the foldable solar panel in the folded configuration. The foldable solar panel includes at least two straps and at least two horizontal rows of webbing operable to attach the foldable solar panel to a load-bearing platform. The foldable solar panel does not include a controller. The foldable solar panel is operable to charge a battery faster than previously known in the art.
Resumen de: US20260221620A1
A battery and a connection method therefor are provided. The battery includes a jelly roll and a housing. A plurality of negative tabs are arranged at intervals at one end of the jelly roll. The plurality of negative tabs are bent and overlap one another to form a complete tab structure at the one end of the jelly roll. The jelly roll is disposed in the housing. The housing includes a bottom plate, and the plurality of negative tabs are electrically connected to the bottom plate.
Resumen de: US20260221623A1
0000 This application provides a lead out assembly including a mounting substrate, a terminal structure, and a current collecting layer provided on the mounting substrate. The current collecting layer is used to be in contact with the battery cell. The terminal structure includes at least one external terminal, and the external terminal includes a first section and a second section that are connected to each other. The first section is provided on the mounting substrate and electrically connected to the current collecting layer, while the second section extends outside the mounting substrate. A width of the external terminal is W<1>, with W<1>≥k<1>*R*C/(n*t<1>*d<1>). The This application also provides a solid-state battery.
Resumen de: US20260221622A1
0000 This application provides a lead out assembly including a mounting substrate, a terminal structure, and a current collecting layer provided on the mounting substrate. The current collecting layer is used to be in contact with the battery cell. The terminal structure includes at least one external terminal, and the external terminal includes a first section and a second section that are connected to each other. The first section is provided on the mounting substrate and electrically connected to the current collecting layer, while the second section extends outside the mounting substrate. Along a thickness direction of the current collecting layer, the first section is bent relative to the current collecting layer towards the side where the mounting substrate is located. This application also provides a solid-state battery.
Resumen de: US20260221611A1
A battery of the present disclosure includes a power-generating element and a collector laminated on the power-generating element,. In an area of overlap between the collector and the power-generating element as seen along a direction of lamination of the power-generating element and the collector, a ratio of a second thickness to a first thickness is greater than or equal to 101% and less than or equal to 200%. The first thickness is a thickness of a central part of the collector The second thickness is a maximum thickness of the collector at an end portion thereof.
Resumen de: AU2024403655A1
An energy storage system (10) having cells (11) arranged in series and a battery management system for monitoring voltages of the cells (11). Connection lines extend from a battery management controller to cell junctions. A voltage generator generates a first voltage on the first connection line and a second voltage on the second connection line and a control circuit is provided between each of the first and second connection lines and each of the junctions to which the connection line is connected. When the first and second voltages are generated, the control circuits will connect between the first connection line and a first cell junction where the voltage at said first cell junction is within a range of the first voltage and will connect between the second connection line and a second cell junction where the voltage at said second cell junction is within a range of the second voltage.
Resumen de: AU2024403827A1
The invention relates to a battery system (1) comprising: a plurality of battery modules (2), which each have sensors (3) for the sensor-based recording of measurement series of physical quantities of battery cells (5) located in the battery modules (2) and have a battery management system, BMS (4); and an energy management system, EMS (7), which is assigned to the plurality of battery modules (2) and is configured to obtain charge states, SOCs, of each battery module (2-1, 2-n) of the plurality of battery modules (2), which charge states are estimated by the particular BMS (4) and are based on the measurement series, and to operate the plurality of battery modules (2) depending on the estimated SOCs, wherein the battery system (1) is configured to adapt control of the plurality of battery modules (2) using the EMS (7) on the basis of corrected SOCs.
Resumen de: US20260221537A1
0000 A method for manufacturing an intercell cooling element with swelling compensation, includes steps of providing two metallic, in particular aluminum alloy, half-shell elements, each of which has a closed channel structure on its inner sides; aligning the half-shell elements so that the inner sides face each other, and positioning one compression insert between the half-shell elements; and connecting the half-shell elements by joining them together along their edge sections.
Resumen de: US20260217106A1
0000 A method of operating an electric vehicle is disclosed, and may include detecting an extreme operating situation or an imminent extreme operating situation of the electric vehicle requiring a temperature-induced power limitation of at least one constituent for a drive of the electric vehicle or a temperature-induced power reduction of the at least one constituent, and evaporating a cryogenic coolant in an evaporator heat exchanger unit, such that a temperature of primary coolant flowing through a coolant circuit is maintained or lowered below a threshold value, such that the power limitation or the power reduction of the at least one constituent is suppressed. The at least one constituent and the evaporator heat exchanger unit may be fluid-mechanically integrated. The evaporator heat exchanger unit may be configured to be fluid-mechanically connected to a tank configured to hold the cryogenic coolant.
Resumen de: AU2024401773A1
An elastic pad, comprising one or more elastic module, and a bottom layer arranged below the elastic module. The elastic module comprises a plurality of pre-compressed springs. The middle of each pre-compressed spring is provided with a connecting member. Further comprised are bridging members. Adjacent pre-compressed springs are connected at the middle, and are connected to the bridging members by means of the connecting members. Each bridging member connects adjacent pre-compressed springs. The bottom face of each pre-compressed spring is connected to the bottom layer.
Resumen de: US20260221459A1
A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a nonaqueous electrolyte, and a separator provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer carried on the positive electrode current collector. The positive electrode active material layer contains a positive electrode active material, a binder, and an additive. The additive is a polymer material having a melting point or thermal decomposition temperature of 200° C. or higher and 500° C. or lower. In a cross section of the positive electrode active material layer, the polymer material forms and is dispersed as a plurality of island-shaped regions. The BET specific surface area of the polymer material is 10 m2/g or less.
Resumen de: US20260221417A1
A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a nonaqueous electrolyte, and a separator provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer carried on the positive electrode current collector. The positive electrode active material layer contains a positive electrode active material, a binder, and an additive. The additive is a polymer material having a melting point or thermal decomposition temperature of 200° C. or higher and 500° C. or lower. In a cross section of the positive electrode active material layer, the polymer material forms and is dispersed as a plurality of island-shaped regions. The average particle diameter of the polymer material is 50 μm or less.
Resumen de: US20260221460A1
A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a nonaqueous electrolyte, and a separator provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer carried on the positive electrode current collector. The positive electrode active material layer contains a positive electrode active material, a binder, and an additive. The additive is a polymer material having a melting point or thermal decomposition temperature of 200° C. or higher and 500° C. or lower. In a cross section of the positive electrode active material layer, the polymer material forms and is dispersed as a plurality of island-shaped regions. The variance of a Voronoi diagram is 2×107 μm4 or less, the Voronoi diagram being obtained by Voronoi tessellation of the cross section of the positive electrode active material layer for the island-shaped regions.
Resumen de: US20260221504A1
A sulfide solid electrolyte includes a sulfide-based glass phase. The sulfide-based glass phase has an exothermic peak at which a highly ion-conductive crystal is precipitated when subjected to a differential scanning calorimetry measurement at a heating rate of 5° C./min, the exothermic peak can be separated into two or more peaks, and a temperature difference between a peak top of a peak on the highest temperature side and a peak top of a peak on the lowest temperature side among the two or more peaks obtained by the peak separation is 0.5° C. or higher.
Resumen de: US20260221501A1
0000 A sulfide solid electrolyte containing: a crystalline phase and a glass phase, in which the glass phase includes a phase including a sulfide glass which contains Li, P, and S as constituent elements, the crystalline phase includes a high-ion-conductive crystalline phase derived from the sulfide glass and a β-Li<3>PS<4 >crystalline phase, compositions of the phase including the sulfide glass and the high-ion-conductive crystalline phase satisfy Li: 30 at % to 50 at %, P: 5 at % to 15 at %, and S: 30 at % to 60 at %, and a content ratio of the β-Li<3>PS<4 >crystalline phase in the sulfide solid electrolyte is 0.1 mass % to 30 mass %.
Resumen de: US20260221500A1
A sulfide solid electrolyte containing: a crystalline phase and a glass phase, in which the glass phase includes a phase including sulfide glass which contains Li, P, and S as constituent elements, the crystalline phase includes a high-ion-conductive crystalline phase derived from the sulfide glass and another crystalline phase, compositions of the phase including the sulfide glass and the high-ion-conductive crystalline phase satisfy Li: 30 at % to 50 at %, P: 5 at % to 15 at %, and S: 30 at % to 60 at %, and the another crystalline phase exhibits, in an XRD pattern obtained by a powder X-ray diffraction measurement, two or more diffraction peaks different from a diffraction peak indicating the high-ion-conductive crystalline phase within a range of 20=18.0° to 22.5°.
Resumen de: US20260221518A1
An electrode assembly in which a first electrode, a second electrode, and a separator interposed therebetween are wound around a winding axis to define a core and an outer circumference, wherein a winding start portion of the first electrode is positioned closer to the core than a winding start portion of the second electrode and extends further in a direction opposite to a winding direction, wherein a winding end portion of the first electrode is positioned closer to the outer circumference than a winding end portion of the second electrode and extends further is provided. In a cross-section of the electrode assembly perpendicular to the winding axis, the winding end portion of the second electrode is included in a fan-shaped region having a circumferential angle corresponding to an angle of the winding direction between the winding start portion of the first electrode and the winding start portion of the second electrode.
Resumen de: US20260221410A1
A manufacturing method of a positive electrode includes a process of manufacturing a positive electrode slurry including a positive electrode active material and a coating process of coating the positive electrode slurry on a current collector using a slot die to manufacture a preliminary positive electrode. A shim embedded in the slot die used in the coating process does not comprise a protrusion part for forming a semi-coated part having a relatively thin coating thickness of the positive electrode slurry. A positive electrode and a lithium secondary battery are also provided.
Resumen de: US20260221452A1
0000 The present invention relates to an electrode for use in an energy storage device, said electrode comprising an electron collector, an active material and a conductive binder, wherein said conductive binder comprises solution-processed n-type conducting polymer having a conductivity of at least 100 S/cm.
Resumen de: US20260221546A1
0000 A pouch film laminate according to the present disclosure includes a base material layer, a gas barrier layer, and a sealant layer which are sequentially laminated. The base material layer includes a first base material layer, a first adhesive layer, and a second base material layer which are sequentially laminated. T the first adhesive layer includes metal oxide particles in an amount of greater than 15 wt % to less than 60 wt % based on a total weight of the first adhesive layer. A pouch type battery case including the pouch film laminate, and a pouch type secondary battery including the pouch type battery case are also disclosed.
Resumen de: US20260221792A1
A mobile battery charging and storage station for both indoor and outdoor use, comprising: a weatherproof, secure cabinet mounted on wheels and having a width less than 800 mm, a plurality of internal storage units within the cabinet, each having an internal mains power supply socket and a unit air vent, each storage unit sized to receive a battery pack to be charged from the power supply socket, wherein the cabinet has an externally mounted weatherproof mains hook up socket electrically connected to supply each of the internal mains power supply sockets, and wherein the cabinet houses an automatic climate monitoring and adjusting system for supplying air to the storage units via their respective unit air vents to optimise the climate of the storage units for the charging of batteries therein.
Resumen de: US20260221496A1
Disclosed is a negative electrode including a negative electrode charge collector, and a negative electrode layer that is disposed on the negative electrode charge collector and contains solid electrolyte particles. The value of (D90−D10)/D50 is less than 10.0, where D10, D50, and D90 are defined as cumulative volume particle diameters of the solid electrolyte particles at cumulative volumes of 10 vol %, 50 vol %, and 90 vol % respectively, as measured according to a laser diffraction/scattering particle size distribution measurement method. The negative electrode contains no negative electrode active material. Preferably, a cumulative volume particle diameter D95 of the solid electrolyte particles at a cumulative volume of 95 vol % as measured according to the laser diffraction/scattering particle size distribution measurement method is less than 65 μm.
Resumen de: US20260221454A1
0000 A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a nonaqueous electrolyte, and a separator provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer carried on the positive electrode current collector. The positive electrode active material layer contains a positive electrode active material, a binder, and an additive. The additive is a polymer material having a melting point or thermal decomposition temperature of 200° C. or higher and 500° C. or lower. In a cross section of the positive electrode active material layer, the polymer material forms and is dispersed as a plurality of island-shaped regions. The average perimeter of the island-shaped regions is 60 μm or less.
Resumen de: US20260221416A1
0000 The present invention provides composite particles consisting of a Si—C composite material capable of achieving a reduction in volume expansion of an electrode during charging in a lithium-ion rechargeable battery. The present invention includes composite particles including a carbon material and silicon, wherein a true density (He true density) by dry density measurement using helium gas is 1.30 g/cm<3 >or more and 2.00 g/cm<3 >or less, a true density (BA true density) by wet density measurement using 1-butanol is 1.00 g/cm<3 >or more and 1.64 g/cm<3 >or less, and the He true density is greater than the BA true density.
Resumen de: US20260221503A1
0000 A sulfide solid electrolyte includes 60 mass % or more of a sulfide-based glass phase. The sulfide solid electrolyte includes Li, P, and S as constituent elements, a composition of the sulfide solid electrolyte satisfies Li/P≥2.5, and the sulfide solid electrolyte has a lithium ion conductivity of more than 1 mS/cm at 25° C. when formed into a powder compact at 380 MPa.
Resumen de: US20260221624A1
A battery cell includes a housing, an electrode assembly, and an electrode terminal. The housing is provided with a wall portion, and a mounting hole is formed on the wall portion. The electrode assembly is accommodated within the housing. The electrode terminal extends through the mounting hole; the electrode terminal includes a first terminal portion and a second terminal portion that are separately provided; the first terminal portion and the second terminal portion are arranged along the thickness direction of the wall portion and connected to each other; at least a part of the first terminal portion is located on a side of the wall portion facing the electrode assembly and electrically connected to the electrode assembly; at least a part of the second terminal portion is located on a side of the wall portion away from the electrode assembly.
Resumen de: US20260221563A1
0000 A gasket for an electrochemical device with excellent water vapor barrier properties, and an electrochemical device including the gasket. A gasket for an electrochemical device containing polybutylene terephthalate, the gasket having a compression ratio upon installation of 5% or more.
Resumen de: US20260221593A1
The present disclosure can provide a film with excellent durability against an electrolyte, capable of effectively blocking the inflow of external moisture and atmosphere (air) into a battery while continuously and non-destructively discharging gas, generated inside the battery, under a low pressure condition as well as a high pressure condition. The present disclosure can provide a battery pouch capable of further improving the stability and lifespan of the battery by comprising the film in at least a portion thereof.
Resumen de: US20260221588A1
0000 A battery pack including a plurality of battery cells having venting portions and a pack frame configured to accommodate the plurality of battery cells and having a venting guide portion in an area corresponding to the venting portion of the plurality of battery cells is provided.
Resumen de: US20260221497A1
An oxychloride solid-state electrolyte, and a preparation method and use thereof are provided. The oxychloride solid-state electrolyte is represented by a chemical formula of xLi2O-(1−y)ZrCl4-yAlCl3, where 0
Resumen de: US20260221619A1
A battery cell, including a jelly roll that includes a plurality of electrode plates. A tab and a cut edge are provided at two ends of each electrode plate, respectively; the plurality of electrode plates are classified into first electrode plates and second electrode plates which are arranged in sequence and have opposite polarities; the tabs having opposite polarities are located on different sides of the jelly roll; the tabs located on the same side are electrically connected to a first connecting surface of a connector; and on the same side of the jelly roll, the distance between the first connecting surface and the cut edge is L, the number of electrode plates having the same polarity is n, the number of bending layers of the tabs is m, the thickness of the battery cell is T, and the thickness of each electrode plate is t, satisfying: 0.5≤N−(L−5−0.1*T/2)/(n*m*t)≤15.
Resumen de: US20260221517A1
0000 A jelly-roll electrode assembly having a first separator, a negative electrode, a second separator, and a positive electrode, with a flexible film having a tensile strength of 18 kgf/mm<2 >to 25 kgf/mm<2 >disposed between the first separator and the second separator is provided. A method for manufacturing the jelly-roll electrode assembly and a secondary battery including the same are also provided.
Resumen de: US20260221509A1
0000 A non-aqueous electrolyte secondary battery includes: an electrode body in which a positive electrode and a negative electrode are wound with a separator interposed therebetween; a non-aqueous electrolyte; and an outer can that accommodates the electrode body and the non-aqueous electrolyte. The negative electrode has a negative electrode core and a negative electrode mixture layer provided on the surface of the negative electrode core. The electrode body has, on the outer peripheral surface thereof, an exposed portion where the surface of the negative electrode core is exposed, and the exposed portion is in contact with the inner surface of the outer can. The non-aqueous electrolyte contains lithium hexafluorophosphate and 1-propene 1,3-sultone.
Resumen de: US20260221429A1
0000 Disclosed is a positive electrode and a lithium secondary battery including the positive electrode, the positive electrode including a positive electrode active material and a carbonate-containing compound containing a fluorine-containing functional group in an active material layer. In a C Is spectrum by X-ray photoelectron spectroscopy (XPS) analysis, intensities of peaks satisfy a certain ratio, and, since the positive electrode has excellent resistance characteristics and suppresses degradation, life characteristics may be improved. The lithium secondary battery has improved resistance characteristics, and since degradation of the positive electrode and negative electrode may be suppressed to prevent a sudden drop in capacity, life characteristics may also be improved.
Resumen de: US20260221559A1
0000 A cylindrical battery comprises an electrode body, an exterior can having a bottomed cylindrical shape, and a cap. The cap has: an annular covering part which covers at least a portion of the outer surface of a shoulder of the exterior can; a cylindrical part which extends in a substantially axial direction; and a groove arrangement part, at least a portion of which is in contact with an axial top surface of the outer surface of a grooved part of the exterior can and a tip of which is arranged in a groove defined by the grooved part.
Resumen de: US20260218033A1
A curable composition comprising an epoxy resin, a thermally conductive filler, an amine compound (X) having two or more amino groups, and a polyfunctional acrylate compound, the amine compound (X) having a viscosity of 20 Pa·s or less measured at 25° C. and 10 rpm using an E-type viscometer or having an oxyalkylene structure, a content of the amine compound (X) with respect to a total amount of resin components being 15 mass % or more and 55 mass % or less.
Resumen de: US20260218360A1
A method for preparing an aluminum thin film includes; (A) slitting an aluminum thin film and winding the slit aluminum thin film in one direction, and (B) heat-treating a slit surface including a slit portion of the aluminum thin film in a roll of the wound aluminum thin film. The heat treatment may be performed to satisfy Equation 1 below:-0.21t+150≤T≤-0.21t+210,Equation1where heat treatment temperature is indicated as T (unit: ° C.) and heat treatment time is indicated as t (unit: seconds).Also disclosed is an aluminum thin film having a thickness of 10 μm to 20 μm, having a tensile strength of 20.0 kgf/mm2 to 30.4 kgf/mm2 in the MD direction, and having an elongation of 1.8% to 2.6% in the MD direction. A positive electrode and a lithium secondary battery including the aluminum thin film are also disclosed.
Resumen de: US20260221438A1
The present disclosure relates to a precursor of a positive electrode active material for a lithium secondary battery, a method for manufacturing a positive electrode active material using the same, and a lithium secondary battery including the positive electrode active material manufactured thereby. In one embodiment, the precursor of a positive electrode active material for a lithium secondary battery may have a full width at half maximum (FWHM) of a diffraction peak of the (200) plane measured by X-ray diffraction in a range from 0.28° to 1.30°.
Resumen de: US20260217562A1
A method for manufacturing an aqueous slurry comprising hydroxide or oxyhydroxide particles of one or more elements, wherein the one or more elements include at least one of Ni, Co and Mn, comprises supplying a flow of a metal salt solution comprising the one or more elements to a reactor vessel for a time period; during the time period, mixing the metal salt solution with an aqueous solution comprising one or more alkali hydroxides, thereby precipitating the hydroxide of the one or more elements and forming the aqueous slurry comprising the hydroxide or oxyhydroxide particles of the one or more elements. The metal salt solution has a flow rate expressed as a volume per unit of time. The mathematical product of the flow rate and the concentration increases continuously during the time period.
Resumen de: US20260222771A1
0000 A battery tracking system is provided that includes a battery including a control unit that monitors a condition indicating when the battery has been detached from a device and transmit a signal including identification information of the detached battery, an external device that receives the signal transmitted from the detached battery and transmit location information of the external device together with the received signal, and a controller that receives the location information and the signal transmitted from the external device and determine a location of the detached battery based on the received location information and the signal.
Resumen de: US20260221614A1
0000 A cell includes an electrode assembly, a first tab, a second tab, and a packaging member. The first tab and the second tab are respectively connected to the electrode assembly. The first tab and the second tab are located on the same side of the electrode assembly. The packaging member includes an electrode assembly accommodating portion and a tab packaging portion in communication with the electrode assembly accommodating portion. The tab packaging portion extends away from the electrode assembly accommodating portion in a first direction. A size of the tab packaging portion is smaller than that of the electrode assembly accommodating portion in a second direction. The first tab and the second tab are provided with a bending portion extending in a thickness direction of the electrode assembly. The electrode assembly is accommodated in the electrode assembly accommodating portion. The bending portions are accommodated in the tab packaging portion.
Resumen de: US20260221601A1
0000 A disclosed nonaqueous electrolyte secondary battery includes a positive electrode (11), a negative electrode (12), a separator (50) provided between the positive electrode (11) and the negative electrode (12), and a spacer (53) provided in at least one region selected from the group consisting of a region between the positive electrode (11) and the separator (50) and a region between the negative electrode (12) and the separator (50). The negative electrode (12) is a negative electrode in which a metal used as a negative electrode active material deposits during charging and the metal dissolves during discharging. The spacer (53) contains a resin and a filler. The resin contains a cellulose-based compound.
Resumen de: US20260221444A1
A positive electrode active material according to the present invention has a crystalline structure belonging to the space group R-3m, and is represented by the compositional formula LiαNaβNi1−b−cMnbXcOd, wherein X is at least one element selected from the group consisting of representative elements and transition metal elements other than Li, Na, Ni, and Mn, 0.80<α≤1.20, 0<β≤0.20, 0.80<α+β≤1.20, 0<1−b−c≤1, 0≤b<1, 0≤c<1, and d is a value that satisfies electrical neutrality. The ratio I101/I012 of the integrated intensity I101 of a diffraction peak in the (101) plane to the integrated intensity I012 of a diffraction peak in the (012) plane of an X-ray diffraction pattern obtained through powder X-ray diffraction of the positive electrode active material is less than 2.2.
Resumen de: US20260221556A1
Top cover of a battery pack including a metallic coated steel sheet covered on both sides by an organic coating, wherein the organic coating is thinner on the inner side of the battery pack than on the outer side of the battery pack.
Resumen de: US20260221545A1
0000 A pouch film laminate according to the present disclosure includes a base material layer, a gas barrier layer, a first sealant layer, and a second sealant layer which are sequentially laminated, wherein an elastic modulus of the first sealant layer is greater than an elastic modulus of the second sealant layer. A pouch type battery case comprising the pouch film laminate, and a pouch type secondary battery comprising the pouch type battery case are also disclosed.
Resumen de: US20260217560A1
The invention is in general related to hydroxides for precursors of cathode materials for rechargeable batteries. Particularly, the invention is related to methods for manufacturing aqueous slurry/slurries comprising hydroxide(s) of at least one metal element such as Ni, Co, and/or Mn. The aqueous slurry/slurries may subsequently be used in various applications, especially for making precursors for lithium transition metal oxides for rechargeable batteries.
Resumen de: EP4783302A1
The present invention relates to an aging rack in which secondary batteries are accommodated and an aging process is performed, and an aging system comprising the same, which relates to an aging rack capable of providing temperature uniformity regardless of locations of the secondary batteries, and an aging system comprising the same.According to one example of the present invention, it is possible to provide an aging rack comprising a blowing device forcibly performing air supply from the rearward of a tray accommodating part to the front through a plurality of perforated nozzles, and an aging system comprising the same.
Resumen de: EP4783300A1
0001 The present disclosure relates to the technical field of batteries, and, in particular, to a battery module, an energy storage system and an electric device. In the present disclosure, when liquid in a flow guiding cavity contacts a bottom side of a battery cell, the liquid is forced to enter a flow guiding channel through an inlet of the flow guiding channel, to perform heat management on the battery cell. In this process, since an opening of the flow guiding cavity directly matches with the battery cell, the liquid in the flow guiding cavity directly contacts the bottom side of the battery cell, thereby increasing a contact area between the liquid and the battery cell, and improving a heat management effect. Meanwhile, since a fluid channel which forces the liquid to enter the flow guiding channel through the inlet of the flow guiding channel and flow out from the flow guiding channel is formed, the liquid better fits a side surface of a cavity wall of the flow guiding channel formed by the battery cells, thereby facilitating heat exchange between the liquid and the battery cells, and then facilitating an improvement of a heat management effect.
Resumen de: EP4783274A1
0001 The present invention relates to a unit cell transfer device and a lamination device, and more specifically, relates to a unit cell transfer device capable of stably transferring and laminating unit cells, and a secondary battery manufacturing device comprising the same. 0002 According to one example of the present invention, it is possible to provide a secondary battery unit cell transfer device comprising a plurality of adsorption modules adsorbing unit cells; a circulation track on which the adsorption modules are circulated and moved; a pusher module moving the adsorption modules downward relative to the circulation track; and a control part releasing adsorption of the adsorption modules so that the unit cells are separated from the adsorption modules and laminated after downward movement of the adsorption modules.
Resumen de: EP4782852A1
0001 A battery diagnosis device according to an embodiment of the present invention may comprise: at least one processor; and memory that stores at least one command that is executed through the at least one processor. Here, the at least one command may comprise: a command for acquiring state data including a state value of each of factors for a plurality of batteries; a command for deriving regression lines indicating relationships between the factors by using the state data; a command for calculating coordinates corresponding to the state values of the factors and distances between the regression lines; and a command for inputting diagnostic data including the distances into a pre-trained diagnostic model, and determining an abnormal battery among the batteries by using a diagnostic result output by the diagnostic model.
Resumen de: EP4783296A1
0001 Disclosed are an apparauta and a method of generating a lithium iron phosphate (LiFePO<4>, LFP) battery model. The apparatus includes: a lithium state recorder configured to record a state of lithium (Li) in a positive electrode active material of an LFP battery according to charging or discharging of the LFP battery; and a battery model generator configured to generate a battery model of the LFP battery based on the recorded state of the lithium in the positive electrode active material. The battery model generator generates a battery model by modeling the LFP battery using a capacitor and a plurality of resistors including an additional resistance component generated based on the state of the lithium in the positive electrode active material.
Resumen de: EP4783242A1
0001 A herein disclosed manufacturing method of a nonaqueous electrolyte secondary battery is a manufacturing method of a nonaqueous electrolyte secondary battery that includes an electrode assembly having a positive electrode and a negative electrode and that includes a nonaqueous electrolyte, the manufacturing method including: an assembly body preparing step for preparing an assembly body in which the electrode assembly and the nonaqueous electrolyte are accommodated by a battery case; an initial electrically charging step for electrically charging the assembly body until having a predetermined voltage V0; an aging step for holding the assembly body at 45°C or more for 3 hours or more after the initial electrically charging step; a voltage adjusting step for adjusting the assembly body to have a voltage V1 being less than 3.585 V after the aging step; a temperature history adjusting step for treating a temperature of the assembly body at a temperature decrease starting time to be T1 after the voltage adjusting step, for cooling down the assembly body until having a temperature T2 being lower than the T1, and for heating up the assembly body until having a temperature T3 being higher than the T2; and a self electrical discharge inspecting step for performing a self electrical discharge inspection at a temperature T4 being higher than the T2 after the temperature history adjusting step.
Resumen de: WO2025104031A1
The invention relates to a method for producing a prismatic battery cell (2), wherein an electrode stack (16) is provided with first electrodes (6) and second electrodes which are stacked one over the other. Arresters (10) of the first electrodes (6) protrude beyond an end face of the electrode assembly (16), and arresters (10) of the first electrodes (6) are compacted, wherein the compacted arresters (10) are welded to a contact plate (30), and the contact plate (30) is welded to a contact element (26) of a cell cover (50). The invention additionally relates to such a prismatic battery cell (2).
Resumen de: EP4783264A1
0001 A positive electrode material according to one embodiment of the present invention comprises a positive electrode active material having a surface B/Ni ratio appropriately controlled according to the average particle diameter of the positive electrode active material, thereby alleviating an increase in viscosity of a slurry manufactured by the subsequent process.
Resumen de: EP4783265A1
The positive electrode active material according to one embodiment of the present invention may include a lithium composite transition metal oxide represented by Chemical Formula 1 below: Chemical Formula 1 LiaNibMncTidZreMfO2wherein M is Cr, Nb, Mg, Hf, Ta, La, Sr, Ba, Zn, F, P, S, Y, W, Mo, B, or a combination thereof, and0.8≤a≤1.2, 0.6≤b<1.0, 0.2≤c≤0.5, 0
Resumen de: EP4783263A1
0001 A positive electrode active material according to one embodiment of the present invention may comprise a nickel-rich metal oxide, wherein the nickel-rich metal oxide includes: a first metal element having an oxidation number of +6; a second metal element having an oxidation number of +5; a third metal element having an oxidation number of +4; and a fourth metal element having an oxidation number of +2 or +3.
Resumen de: GB2703399A
Apparatus 10 comprises a conveyor systems to deliver battery plates 20 to first holding stage 12. A plurality of moveable elements (12a-12b,Fig.1) move to provide (and remove) plate 20 stage support and may be rotatable and comprise a pair of spaced-apart, opposed ledges. A second holding stage 14 catches the battery plate 20 from below and is moveable to allow plate stack 18 removal by conveyor system 16 and may comprise a pair of spaced-apart, opposed wall structures 14a-14b acting as a lift mechanism. A third plate holding stage (22,Fig.4) may comprise a plurality of opposing, retractable, protruding elements (22a-22d,Fig.4) which can support plate 20 dropped from stage 12 whilst stage 14 is being lowered. A reject mechanism may comprise a plurality of retractable, spaced-apart, opposed bars 24a-24b that act as intercept holding stage 24 from stage 12 and allow ejection by extendable, reciprocable member 26 to reject zone (28,Fig.5). Figure 6
Resumen de: EP4782821A1
0001 According to some embodiments, a battery inspection device includes a photographing unit configured to photograph a feed state of a negative electrode being fed toward a winding core to form a jelly roll of a cylindrical battery cell and generate a negative electrode feed-state image and a processing unit configured to measure a first distance indicating the feed state of the negative electrode based on the negative electrode feed-state image, calculate a negative electrode feed amount index indicating a feed amount of the negative electrode based on the first distance, and diagnose a winding state of the jelly roll based on the negative electrode feed amount index.
Resumen de: EP4782142A1
Disclosed are a top cap welding apparatus for cylindrical battery cells, the top cap welding apparatus including a transfer unit configured to transfer a cylindrical battery case in which an electrode assembly having an outwardly exposed electrode tab is received, a pressing unit located in front of the battery case, the pressing unit being configured to press the battery case, a support unit located at the rear of the battery case, the support unit being configured to support the battery case, a top cap holder configured to locate a top cap at the rear of the electrode tab, a top cap support unit configured to support the rear of the top cap, and a welding unit configured to weld the electrode tab and the top cap to each other, wherein the welding unit includes a temperature adjustment unit configured to control the temperature of a welding mask configured to bring the electrode tab into tight contact with the top cap such that the temperature does not rise to a predetermined temperature or higher, and a top cap welding method for cylindrical battery cells using the same.
Resumen de: EP4783331A1
0001 A battery cell according to an embodiment of the present disclosure comprises an electrode assembly in which a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode are sequentially stacked multiple times; a battery case that incorporates the electrode assembly and extends along a longitudinal direction of the electrode assembly; at least two degassing holes formed on an outer surface of the battery case; and a cover part that covers each of the at least two degassing holes, wherein the battery case is a prismatic case, and wherein in a state where the degassing holes are opened, the pressure inside the battery case is formed lower than the atmospheric pressure, and then the degassing holes are covered by the cover part.
Resumen de: EP4783405A1
A starting power supply device capable of reverse charging includes a main control module, a rechargeable battery connected to the main control module, and a battery level detection module connected to the main control module and the rechargeable battery. The battery level detection module is used for detecting a battery level of the rechargeable battery to generate a battery level signal, and sending the battery level signal to the main control module. The main control module is used for obtaining the battery level signal to determine the battery level of the rechargeable battery. Moreover, when the battery level of the rechargeable battery is lower than a preset battery level, the main control module is used for obtaining electrical energy from a car battery to charge the rechargeable battery reversely. By configuring the battery level detection module, the battery level of the rechargeable battery is detected in real time.
Resumen de: US2025158241A1
0000 Provided are multilayered flexible interconnect circuits comprising multiple conductive layers. Also provided are methods of fabricating such circuits and also methods of fabricating battery assemblies with such circuits. A multilayered flexible interconnect circuit comprises at least two conductive layers and at least one inner insulator, which extends between these conductive layers in some circuit portions and allows for conductive layers to directly interface in other circuit portions (e.g., busbar portions). Outer insulators can be provided to insulate these conductive layers from the environment while allowing some access to these layers as needed. Each conductive layer and insulator can be individually patterned to achieve these functions. One or more insulators support conductive layers relative to each other as well as different portions (e.g., disjoined portions) of the same conductive layer. The same multilayered flexible interconnect circuit can provide battery interconnect, voltage/temperature sense, and/or other functions.
Resumen de: EP4783294A1
Disclosed are a pouch battery cell analysis apparatus and a pouch battery cell analysis method using the same, and more particularly a pouch battery cell analysis apparatus including a measurement unit configured to measure the voltage value of a pouch battery cell, a controller configured to determine whether the pouch battery cell is defective based on the voltage value measured by the measurement unit, a cutting member configured to cut a pouch case of the pouch battery cell, a gripping member configured to grip the pouch case in tight contact with the pouch case, and an analysis unit located above the pouch battery cell, and a pouch battery cell analysis method using the same.
Resumen de: EP4782141A1
0001 Disclosed are a top cap welding apparatus for cylindrical battery cells, the top cap welding apparatus including a transfer unit configured to transfer a cylindrical battery case in which an electrode assembly having an outwardly exposed electrode tab is received, a pressing unit located in front of the battery case, the pressing unit being configured to press the battery case, a support unit located at the rear of the battery case, the support unit being configured to support the battery case, a top cap holder configured to locate a top cap at the rear of the electrode tab, a top cap support unit configured to support the rear of the top cap, and a welding unit configured to weld the electrode tab and the top cap to each other, wherein the welding unit includes a welding mask configured to bring the electrode tab into tight contact with the top cap and a debris removal unit configured to remove debris generated during welding by injecting gas and/or suctioning the debris, and a top cap welding method for cylindrical battery cells using the same.
Resumen de: EP4783295A1
0001 The present disclosure relates to a pouch type secondary battery, and more specifically, to a pouch type secondary battery capable of easily determining whether an electrolyte is depleted from the outside without the need to disassemble a battery case.
Resumen de: EP4783304A1
The present disclosure provides a battery pack including: a battery unit including a plurality of battery cells stacked in one direction, side plates disposed at both ends in the stacking direction of the plurality of battery cells, and a band member connected to at least one of the mutual upper ends and mutual lower ends of the side plates; and a pack case forming an accommodation space in which at least one battery unit is mounted, wherein the pack case includes a pack case inlet and a pack case outlet through which insulating oil can flow in and out to the battery unit, and the plurality of battery cells is stacked in a direction crossing the inflow direction of the insulating oil.
Resumen de: EP4783408A1
0001 A charge/discharge noise characteristic enhancement circuit may include a register configured to detect an abnormal signal and output a first micro control unit (MCU) reset signal and a register signal, a first delay circuit configured to delay the first MCU reset signal output from the register and output a second MCU reset signal, an AND gate configured to receive the second MCU reset signal and the register signal and output a third MCU reset signal, a second delay circuit configured to delay the third MCU reset signal output from the AND gate and output a fourth MCU reset signal, and an MCU configured to perform a reset operation based on the first MCU reset signal or the fourth MCU reset signal.
Resumen de: EP4783243A1
0001 The present invention relates to an apparatus for manufacturing a pre-lithiated electrode including: a traveling unit along which an electrode having electrode active material layers on both surfaces of an electrode current collector layer travels; a lamination unit configured to laminate a transfer laminate including a lithium metal layer and a base layer such that the lithium metal layer comes into contact with each of the electrode active material layers, at a first side surface and a second side surface of the traveling unit; a first peeling unit including a first peeling roll configured to peel the base layer from the transfer laminate at the first side surface of the traveling unit; and a second peeling unit including a second peeling roll configured to peel the base layer from the transfer laminate at the second side surface of the traveling unit, wherein among points on the electrode having a shortest distance from a center of the first peeling roll to the electrode traveling along the first side surface of the traveling unit, an upstreammost point P, and among points on the electrode having a shortest distance from a center of the second peeling roll to the electrodes traveling along the second side surface of the traveling unit, a downstreammost point Q are different from each other, and the traveling unit at the point P and the traveling unit at the point Q are located on different straight lines.
Resumen de: EP4782854A1
0001 Disclosed are a battery pack including a plurality of cylindrical battery cells, a metal plate configured to electrically connect the plurality of cylindrical battery cells to each other, a monopole antenna attached to the plurality of cylindrical battery cells, and an antenna module connected to the monopole antenna, and a battery pack inspection apparatus for inspecting the same.
Resumen de: EP4783342A1
The present disclosure relates to a battery module and a battery pack including the same, and more particularly, to a battery module for preventing the spread of gases and/or flames to other battery cells when the gases and/or flames are produced from a specific battery cell and a battery pack including the same. The battery module according to the present disclosure includes a first cell unit, a second cell unit spaced apart from the first cell unit in a first direction, a first side beam covering an end of the first cell unit in a second direction perpendicular to the first direction, and a second side beam coupled to the first side beam, the second side beam covering an end of the second cell unit in the second direction, and at least a part of the first side beam and at least a part of the second side beam may overlap each other in the second direction.
Resumen de: EP4783349A1
The present disclosure relates to a secondary battery including an electrode assembly; an electrode tab electrically connected to the electrode assembly and bent to be in close contact with an end of the electrode assembly; a pouch provided to surround a perimeter of the electrode assembly; an electrode lead including a first lead portion electrically connected to the electrode tab and accommodated inside the pouch to be stacked on the electrode tab, and a second lead portion having one end connected to the first lead portion and the other end exposed to the outside of the pouch; and a protector provided to surround an edge of the first lead portion, thereby obtaining the advantageous effect of minimizing damage to a pouch and improving stability and reliability.
Resumen de: EP4783340A1
0001 A battery module according to an embodiment of the present disclosure may include: pouch cells arranged in a first direction, each of the pouch cells including an electrode lead protruding in a second direction perpendicular to the first direction; a module frame configured to accommodate the pouch cells and open in the second direction, the module frame including a top plate positioned above the pouch cells; a vent suppression structure between the pouch cells and the top plate; and a first end plate coupled to the module frame in the second direction and including first vent holes.
Resumen de: EP4783341A1
A battery module according to an embodiment of the present disclosure may include:pouch cells arranged in a first direction, each of the pouch cells including an electrode lead protruding in a second direction perpendicular to the first direction;a module frame configured to accommodate the pouch cells and open in the second direction, the module frame including a top plate having first vent holes and a first non-perforated portion;a first vent guide structure disposed between the pouch cells and the top plate, the first vent guide structure including second vent holes and a second non-perforated portion, and configured to guide venting toward the plurality of first vent holes; anda bus bar frame coupled to the module frame in the second direction and including a second vent guide structure configured to guide venting toward the first vent holes.Accordingly, the stability of the battery module may be improved.
Resumen de: EP4783325A1
0001 Disclosed is a battery pack including one or more battery modules, a pack case body configured to receive the battery modules, a cover added so as to cover an open surface of the pack case body, and a sound absorbing material disposed on an outer surface of the cover, wherein a groove is formed in the outer surface of the cover, and at least a part of the sound absorbing material is inserted into the groove.
Resumen de: EP4783327A1
The present disclosure relates to a battery module and a battery pack, and more specifically, to a battery module in which a plurality of battery cells capable of being charged and discharged are accommodated in a housing, and a battery pack including a plurality of such battery modules. A battery module according to an embodiment of the present disclosure may include a battery cell group composed of a plurality of battery cells; a housing accommodating the battery cell group; and a sheet-like member attached to the battery cell group, wherein the housing may have a protrusion that forms a receiving space for accommodating a resin, and the battery cell group may be supported by the protrusion. Here, the sheet-like member attached to the battery cell group may contact the upper surface of the protrusion.
Resumen de: EP4783279A1
0001 A battery includes a cell housing, an electrode assembly positioned within the cell housing, and a current collector plate positioned within the housing and electrically coupled to both the cell housing and a second electrode of the electrode assembly. The current collector plate includes an electrode coupling portion electrically coupled to the second electrode, a peripheral portion electrically coupled to the cell housing, and at least one bridge extending between and connecting the electrode coupling portion and the peripheral portion. The bridge includes an adjustable portion configured to deform in response to an applied force, and the peripheral portion may include a rigidity reinforcing structure. The battery may be a cylindrical battery, and the electrode assembly may have a jelly-roll configuration, with the second electrode being a negative electrode. A battery pack including multiple such batteries, and a vehicle including at least one of such battery packs, is also provided.
Resumen de: EP4782255A1
0001 A charging system for charging a power battery of a vehicle, including: a battery apparatus configured to store energy and charge the power battery by releasing energy; a charging connector configured to connect to the vehicle so as to charge the power battery via the charging connector; and a thermal management system, including a first heat exchange flow path, a second heat exchange flow path, and a first switching mechanism. The first heat exchange flow path includes a first heat exchanger configured to exchange heat with the battery apparatus. The second heat exchange flow path includes a second heat exchanger configured to exchange heat with the charging connector. The second heat exchange flow path is connected to the first heat exchange flow path via the first switching mechanism. In this way, through an operation of switching the first switching mechanism, the second heat exchange flow path and the first heat exchange flow path become communicated with each other via the first switching mechanism or a communication relationship between the second heat exchange flow path and the first heat exchange flow path via the first switching mechanism is disconnected.
Resumen de: EP4782856A1
0001 According to some embodiments, a battery management device includes an interface configured to acquire battery data of a battery having a composite negative electrode based on a first active material of a silicon series and a second active material of a graphite series, and a controller configured to calculate a first negative electrode loading of the first active material for the composite negative electrode and a second negative electrode loading of the second active material for the composite negative electrode based on the battery data, and diagnose a state of the composite negative electrode based on the first negative electrode loading and the second negative electrode loading.
Resumen de: EP4783313A1
A gas generation apparatus according to the present disclosure includes a detection case having a shape corresponding to a battery case of a secondary battery, the detection case having an opening to accommodate an electrolyte inside; and a detection cap having a passage hole through which an electrolyte gas generated from the electrolyte passes, the detection cap configured to cover the opening, wherein the passage hole has a diameter configured to allow the electrolyte gas generated by natural evaporation of the electrolyte to escape at a target concentration.
Resumen de: EP4782113A1
Disclosed are a spacer, a slot die, and a method of coating an electrode plate using a slot die. The spacer is configured to be interposed between the upper die and lower die of a slot die and configured to form a gap between the upper die and the lower die. The spacer may include a spacer body part configured to be coupled to the upper die and the lower die and a plurality of insulating liquid discharge parts provided on one side of the spacer body part and configured to discharge an insulating liquid. When an electrode plate is coated through the slot die, slurry may be discharged through an area of the spacer body part other than the insulating liquid discharge parts and the insulating liquid may be discharged through the insulating liquid discharge parts so that the insulating liquid is coated adjacent to ends of the discharged slurry.
Resumen de: EP4783407A1
A secondary battery charging and discharging device related to one example of the present invention comprises a chamber including one or more charging spaces capable of individually accommodating trays, in which secondary batteries are accommodated, and provided with charging grippers arranged to be electrically connectable with the secondary batteries in the charging space, a thermoelectric cooling part including a thermoelectric element, and cooling fins arranged to transfer cold air from a cooling side of the thermoelectric element to surroundings, and arranged to cool air in the charging space at an upper portion of the charging space, a first fan provided to suck cooling air from the surroundings of the thermoelectric cooling part at an upper portion of the charging space and to blow the cooling air toward the secondary batteries accommodated in the tray, and a second fan provided so that the cooling air flows along the longitudinal direction of the secondary battery by sucking air in parallel with the longitudinal direction of the secondary battery at a lower portion of the charging space.
Resumen de: EP4782114A1
Disclosed herein relates to a coating device including: a coating die including a first discharge port for discharging a first coating solution; and a first shim disposed within the coating die and including a second discharge port for discharging a second coating solution, wherein the first shim includes a protruding portion protruding outside the coating die. Claims
Resumen de: EP4783337A1
0001 A battery pack according to one particular embodiment of the present disclosure comprises: at least one battery assembly including a plurality of battery cells; and a pack frame that stores the at least one battery assembly. The pack frame includes a bottom frame on which the battery assembly is placed and in which a venting space is provided. The battery assembly includes battery cells stacked along one direction, and cell frames that extends along edges of the battery cells and covers the edges of the battery cell. A cell vent part is formed in the part that faces the bottom frame among the cell frames.
Resumen de: WO2026099353A1
The present invention relates to a method for the production and conditioning of an electrode mixture which consists of active material, optionally additives and binder, comprising the steps of 1) producing the electrode mixture in a mixing container, wherein during production the mixture is heated to a temperature TH, where TH > 45°C, 2) cooling the electrode mixture in the mixing container by at least ΔT= 5°C and preferably to a temperature TMAX < 35°C but not below a removal temperature TE > 24°C, 3) removing the electrode mixture at the removal temperature and feeding the electrode mixture to a cooling device, 4) cooling the electrode mixture after step 2) by at least 4°C, preferably to a temperature TK < 19°C, by means of the cooling device.
Resumen de: WO2026099344A1
The present invention relates to a method for producing and conditioning an electrode mixture, which consists of active material, optionally additives, and a binder, the method comprising the steps of: 1) producing the electrode mixture in a mixing vessel of a mixer, wherein, during production, the mixture is heated to a temperature TH, where TH > 45°C; 2) transferring the electrode mixture into a cooling mixer having a cooling vessel, the walls of which are preferably cooled; 3) cooling the electrode mixture in the cooling vessel by at least ΔT = 5°C to a removal temperature TE, which is preferably < 35°C; and 4) removing the electrode mixture from the cooling vessel. The invention also relates to a method for producing dry electrodes from electrode mixtures.
Resumen de: EP4783251A1
A coating die and a coating apparatus for a battery electrode plate are provided. The coating die includes a first die (1) and a second die (2). The first die (1) includes a first main body (11) and a first component (12), where the first component (12) is detachably connected to the first main body (11). The second die (2) and the first die (1) are arranged along a first direction (Z). A cavity (3) for accommodating a slurry is formed between the second die (2) and the first main body (11). A discharge port (4) in communication with the cavity (3) is formed between the first component (12) and the second die (2). When the first component (12) is worn, the worn first component (12) only needs to be removed, and a new first component (12) is installed, thereby reducing the downtime of the coating die, improving the coating efficiency, and reducing the production costs.
Resumen de: EP4783330A1
0001 The present disclosure discloses a bottom protection plate supporting structure and a battery pack therefor, where the bottom protection plate supporting structure includes a supporting plate , a bottom protection plate, and foams, the supporting plate is provided with a plurality of battery positioning holes, the foams are provided in a plurality and disposed between the supporting plate and the bottom protection plate, one end of each of the foams is fixedly connected to the bottom protection plate, an end surface of the another end of the foam is attached to the supporting plate, and the foams are configured to avoid the battery positioning holes. The foams can provide sufficient supporting to ensure the safety.
Resumen de: EP4783248A1
0001 The present invention relates to a negative electrode for a lithium secondary battery including: a negative electrode active material layer provided on at least one surface of a negative electrode current collector layer; a surface layer provided on a surface of the negative electrode active material layer; and an inner layer provided between the negative electrode active material layer and the surface layer, wherein the surface layer and the inner layer include one or more selected from the group consisting of a polyvinyl-based polymer, a polyamide-based polymer, a polysilane-based polymer, a polyfluorene-based polymer, a polyaniline-based polymer, and a combination thereof, and the inner layer and the surface layer include polymers different from each other, thereby suppressing thermal runaway.
Resumen de: US2025210737A1
Various systems and methods are provided for a battery management system. In one example, the battery management system includes a battery data receiving unit communicatively coupled to sensors of a battery pack. Further the battery data receiving unit includes instructions stored on non-transitory memory that when executed cause the battery data receiving unit to collect raw data from the sensors of the battery pack in a first format and transmit the collected raw data to an electronic control unit for downstream processing into a second format.
Resumen de: EP4783287A1
Disclosed is a solid electrolyte membrane and an all-solid-state battery including the same. More specifically, the solid electrolyte membrane includes a first solid electrolyte layer including a first solid electrolyte and a first fibrous binder and a second solid electrolyte layer including a second solid electrolyte and a second fibrous binder, stacked adjacent to each other, wherein the weight of the first fibrous binder relative to the total weight of the first solid electrolyte layer is less than the weight of the second fibrous binder relative to the total weight of the second solid electrolyte layer. Since the weight of a first fibrous binder included in the first solid electrolyte layer is less than the weight of the second fibrous binder included in the second solid electrolyte layer, the strength may be improved without lowering the ionic conductivity of the solid electrolyte membrane.
Resumen de: EP4783280A1
An electrode assembly according to an embodiment of the present invention includes a first electrode, a second electrode, and a separator interposed therebetween, which are wound around a winding axis to define a core and an outer circumferential surface, and a tape is attached to at least a partial region of the separator.
Resumen de: EP4783275A1
0001 A secondary battery inspection apparatus includes a first support member configured to support an electrode tab bundle in which a plurality of electrode tabs extending outward from an electrode assembly are stacked from below, a displacement sensor configured to calculate a measurement value indicating a thickness of the electrode tab bundle by pressing the electrode tab bundle with a force from above, and a processor configured to determine whether the electrode tab bundle is normal based on the measurement value calculated by the displacement sensor.
Resumen de: EP4783409A1
0001 An energy storage battery management system includes a power isolation unit, a high-voltage acquisition unit and a communication isolation unit. The power isolation unit can subject an initial low-voltage signal to primary isolation by a first transformer and secondary isolation by a second transformer in sequence to obtain a second voltage, and convert the second voltage to a target operating voltage for the high-voltage acquisition unit. The high-voltage acquisition unit can acquire and convert battery cluster information into a digital signal format. The communication isolation unit can transmit the battery cluster information in the digital signal format to a microcontroller unit (MCU) through primary isolation by a third transformer and secondary isolation by a fourth transformer in sequence, to enable the MCU to generate a control instruction for the battery cluster based on the battery cluster information.
Resumen de: EP4783289A1
The present disclosure provides a lithium-ion battery, including a solvent, a lithium salt and an electrolyte. The electrolyte includes additives. A proportion of the additives in the electrolyte is denoted as Add, with a unit of Add being parts. A charging cutoff voltage of the lithium-ion battery is denoted as Vol, with a unit of Vol being V. A CB value of the lithium-ion battery, the Add and the Vol satisfy 0.98≤CB×VolAdd≤1.54, wherein the CB value of the lithium-ion battery is a dimensionless numerical value. The additives include a negative electrode film-forming additive, a positive electrode complexing additive, and a high-voltage-resistant positive electrode additive.
Resumen de: EP4783315A1
0001 A battery cell (100), a battery (200), and an electrical device (1000). The battery cell (100) comprises an insulating film (10) and an electrode assembly (20). The insulating film (10) comprises a bottom wall (11), and a side wall (12) connected to the bottom wall (11), an accommodating space (13) being defined by the bottom wall (11) and the side wall (12), a gap (14) being formed between the side wall (12) and the bottom wall (11), and the gap (14) penetrating through the side wall (12) and being in communication with the accommodating space (13). The electrode assembly (20) is disposed in the accommodating space (13), and abuts against the bottom wall (11).
Resumen de: WO2025061359A1
The invention relates to a method (1) for operating an electrical energy store (2), to an electrical energy store (2) for carrying out the method, and to a motor vehicle (3) comprising such an energy store (2). The electrical energy store (2) comprises a plurality of battery modules (4) and a temperature-control device (5) for controlling the temperature of the battery modules (4). The method comprises thermally preconditioning (S20) at least one first battery module (4a). The method (1) furthermore comprises cooling (S40) at least one second battery module (4b) by means of the thermally preconditioned at least one first battery module (4a) during an electrical charging or discharging operation of the at least one second battery module (4b). In the process, heat from the at least one second battery module (4b) is transferred to the at least one first battery module (4a) by means of the temperature-control daevice (5), preferably utilizing the thermal mass of the at least one first battery module (4a) and/or a temperature difference between the at least one first (4a) and second (4b) battery module. The temperature control of the energy store can be improved by means of the proposed technique.
Resumen de: WO2025064301A1
A method of pre-lithiating a lithium based secondary battery includes: (i) charging the lithium based secondary battery using a charging circuit connected to the electrode busbar and the counter-electrode busbar;(ii) stopping charging the lithium based secondary battery using the charging circuit when the battery voltage reaches a first voltage;(iii) controlling a current sink connected to the electrode busbar and the auxiliary electrode to conduct a current from the electrode busbar through the auxiliary electrode to diffuse lithium from the auxiliary electrode to the electrode active material layers of the lithium based secondary battery;(iv) stopping controlling the current sink connected to the electrode busbar and the auxiliary electrode to conduct the current from the electrode busbar through the auxiliary electrode when the battery voltage reaches a second voltage lower than the first voltage; and(v) repeating steps (i)-(iv). Use of the method may reduce process time and equipment needed.
Resumen de: US2025105344A1
0000 Disclosed herein is a solid-state battery comprising an anode, cathode, and solid electrolyte disposed between and in conductive contact with the anode and the cathode. The solid electrolyte comprises the compound Na
Resumen de: WO2025064302A1
A method of pre-lithiating a lithium based secondary battery. The battery includes a population of unit cells, an electrode busbar, and a counter-electrode busbar. Each unit cell includes an electrode structure, a separator structure, and a counter-electrode structure. An auxiliary electrode containing lithium metal is connected to the unit cells. A current sink is connected to the electrode busbar and the auxiliary electrode, the current sink is controlled to conduct current from the electrode busbar through the auxiliary electrode, a voltage between the auxiliary electrode and counter-electrode busbar is detected periodically, an adjustment to the voltage is determined periodically, and the current sink is controlled to control an amplitude of the current to cause a sum of the voltage and the adjustment to be about zero volts.
Resumen de: EP4783328A1
0001 The present application has an object to provide a battery pack 40 which can flexibly respond to a specification change, and the battery pack 40 mounted on a hybrid system 10 includes a battery module 50 for supplying electricity to a motor generator 2 of the hybrid system 10, a control circuit for controlling the battery module 50, and a housing 400 accommodating the battery module 50 and the control circuit, in which the battery module 50 has a plurality of battery cells 510 and a cell case 500 accommodating the plurality of battery cells 510 and including a fixing part 500a with respect to the housing 400, the control circuit has a BMU 85 for monitoring and controlling an entire state of the battery module 50 and a CMU 87 for monitoring a state of each of the plurality of battery cells 510 and sending information to the BMU 85, in which the CMU 87 is mounted on the cell case 500 in one unit of the battery module 50.
Resumen de: WO2025064790A1
An energy storage system comprises an energy storage node that includes a plurality of battery storage elements and a control subsystem to receive battery data from the battery storage elements. The energy storage system further includes a power conversion system (PCS) and a control system coupled to the energy storage node and the PCS. The control system, the control subsystem, or both are configured to: receive or store battery charge and discharge characteristics of the battery storage elements during a plurality of operating conditions of the battery storage elements, the PCS, or both; and run the battery storage elements of the energy storage node at one or more selected operating conditions of the plurality of operating conditions based on the battery charge and discharge characteristics to reduce an imbalance in state of charge among the battery storage elements of the energy storage node.
Resumen de: WO2025061395A1
The invention relates to the use of a pipe (1) as a line section in a cooling circuit for a coolant, wherein: the cooling circuit is a component of a battery-cooling system of an electric car; the pipe (1) is a multi-layered pipe; the pipe (1) comprises an innermost layer (2) which comes into contact with the coolant; and the innermost layer (2) comprises a conductivity additive for increasing the electrical conductivity.
Resumen de: WO2025061848A1
The invention relates to a device (1) for separating flat elements (2) for the production of galvanic cells. The device (1) comprises a receiving unit (10) which is designed to receive a stack (3) of flat elements (2) having a plurality of flat elements (2) and to provide the flat elements (2), one after the other, to a separating region (20). The device (1) also comprises a gas supply unit (30) which is designed to supply a gas flow (21, 22) to the separating region (20), said gas flow generating a negative pressure in the separating region (20) in order to lift, by means of the generated negative pressure, a first flat element (4) from the stack (3) of flat elements (2). The device (1) is furthermore designed to exert a force (24) on the lifted first flat element (4), which causes the first flat element (4) to move out of the separating region (20) along a movement direction (6). The invention also relates to a method for separating flat elements (2) for the production of galvanic cells.
Resumen de: EP4783338A2
0001 Disclosed in the present disclosure is a lower battery mounting box and a battery pack. The lower battery mounting box includes: a box, in which an accommodating space for a battery module is formed in the box, and the box is provided with a pressure relief hole; and a beam, provided in the accommodating space, wherein the beam is a sheet metal member and formed by a process of bending or stamping, a pressure relief channel is formed by enclosing between the beam and interior walls of the box, and the accommodating space, the pressure relief channel and the pressure relief hole are sequentially in communication.
Resumen de: EP4783314A1
A disclosed power storage device manufacturing method includes: a preparation step of preparing a case 11 having an opening and a sealing plate 12; a positioning step of positioning the sealing plate 12 to close the opening of the case 11; and a welding step of forming an annular primary beam and at least one annular higher-order light beam using a light splitting means, and welding the case 11 and the sealing plate 12 at an annular weld W using the primary light beam. In the welding step, at least one annular melt mark AM having a shape along the annular weld W is formed on either or both the case 11 and the sealing plate 12 by the higher-order light beam.Thus, a power storage device with excellent welding quality can be provided.
Resumen de: EP4783329A1
The present application has an object to provide a housing 400 of a battery pack 40 and the battery pack 40, the battery pack 40 being capable of suppressing an influence on a component in the housing 400, even when an internal pressure rise occurs in the housing 400. The problem is solved by the housing 400 of the battery pack 40 mounted on a hybrid system 10, including the housing main body 410 having a first accommodating portion 411 accommodating a battery module 50 for supplying electricity to a motor generator 2 of the hybrid system 10 and a second accommodating portion 412 accommodating a control circuit of the battery module 50, a housing cover 420 mounted on the housing main body 410, and a partition wall part 415 provided between the first accommodating portion 411 and the second accommodating portion 412 in the housing main body 410 and partitions a space of the first accommodating portion 412 and a space of the second accommodating portion 412 from each other.
Resumen de: EP4783286A1
0001 Provided are an argyrodite-type sulfide-based solid electrolyte represented by Chemical Formula 1 and a solid electrolyte membrane and all-solid-state rechargeable battery including the same.
Chemical Formula 1 (LiM<1>b
M<2>c
)(P
Resumen de: CN121729775A
Disclosed herein are compounds NaxLi3-xYCl6 (0lt, xlt, 3) that can be used as effective solid state battery electrolytes. The disclosed compounds may have a trilateral ordered crystal structure. The disclosed compounds can exhibit characteristics beneficial for solid state battery electrolyte applications.
Resumen de: WO2025064271A1
High temperature insulative composites that include a gel processed polymer matrix, insulative particles, and additional components are disclosed. In some embodiments, the high temperature insulative composite includes less than 35 wt% of a gel processed polymer matrix, more than 40 wt% insulative particles, and less than 35 wt% other materials. The additional materials include, but are not limited to, an opacifier, an antioxidant, reinforcement fiber(s), and combinations thereof. Also, the insulative composites have at least one of an average maximum temperature less than about 250°C, a z-strength of at least about 25 N, and a compressibility less than about 35% at 1 MPa. The high temperature insulative composites may be formed into thin, strong shapes, thereby facilitating the ability to fabricate shaped materials suitable for a target application. The insulative composite functions as a protective heat propagation barrier when subjected to a temperature above 300°C.
Resumen de: EP4783254A1
0001 The present invention relates to a negative electrode active material and a rechargeable lithium battery including same. The negative electrode active material has a span value of 1.1 to 1.6 by equation 1 below, and comprises secondary particles each composed of assembled primary particles, each of which comprises a silicon nanoparticle and a metal coating layer enclosing the nanoparticles and containing a metal-based material; and an amorphous carbon coating layer enclosing surfaces of the primary particles and secondary particles. Span = D 90 − D 10 / D 50
(In equation 1, D10 represents the particle size corresponding to 10 % cumulative volume in the particle size distribution, D50 represents the particle size corresponding to 50 % cumulative volume in the particle size distribution, and D90 represents the particle size corresponding to 90 % cumulative volume in the particle size distribution)
Resumen de: WO2025064307A1
Thermally conductive compositions may include an isocyanate component containing a blocked isocyanate; an isocyanate-reactive component comprising: one or more polyetheramines, and one or more catalysts selected from a group of carboxylate salts, tertiary amines, amidines, guanidines, and diazabicyclo compounds; and one or more internal mold release agents present in one or more of the isocyanate component and the isocyanate-reactive component, the internal mold release agent being prepared from the reaction of one or more equivalents of fatty acid with a branched C3 to C10 polyol; and a thermally conductive filler, wherein the thermally conductive composition has a thermal conductivity of greater than 1 W/m.K.
Resumen de: EP4783256A1
A negative electrode material for a secondary battery, according to one embodiment of the present invention, is particles comprising: a base material containing silicon (Si) on the basis of an element component; and a surface layer which is positioned on the base material and which contains carbon (C), and has a angularity ratio AR, defined as (1-Con)/Con·100, of 1.00 or less, wherein Con is the convexity obtained by dividing a convex perimeter of the negative electrode material particle by the actual perimeter of the negative electrode material.
Resumen de: EP4783258A1
0001 The present application provides a positive electrode material and a preparation method thereof, a positive electrode slurry, a positive electrode plate, a lithium ion battery and a preparation method thereof. The positive electrode material is applied to a battery. The battery comprises an electrolyte, the electrolyte comprises lithium hexafluorophosphate and an organic solvent, the positive electrode material comprises a positive electrode active substance and lithium carbonate, the lithium carbonate is coated on the surface of the positive electrode active substance, and a mass ratio of the positive electrode active substance to the lithium carbonate is 1:(0.001-0.03).
Resumen de: EP4783257A1
0001 The present embodiments relate to a positive electrode active material for a lithium secondary battery and a lithium secondary battery including the same. In one embodiment, the positive electrode active material for a lithium secondary battery comprises: a single-particle metal oxide comprising 0.8 mol or more of nickel based on 1 mol of total metals excluding lithium; and a coating layer located on a surface of the metal oxide and comprising cobalt; wherein the metal oxide having the coating layer formed thereon may have a particle diameter (Dn10), corresponding to 10% in a cumulative particle-number distribution, of 1.1 µm or greater.
Resumen de: EP4783253A1
0001 A coated active material 130 of the present disclosure includes an active material 110 and a coating layer 120 coating at least a portion of a surface of the active material 110. The coating layer 120 includes a first layer 111 including a first solid electrolyte and a second layer 112 including a second solid electrolyte. A first layer 111 is positioned between the second layer 112 and the active material 110. The first solid electrolyte contains Ti and F, and the second solid electrolyte contains Ti, F, and O. A proportion of a Ti-O bond in a group of bonds to Ti contained in the second solid electrolyte is higher than a proportion of the Ti-O bond in the group of bonds to Ti contained in the first solid electrolyte.
Resumen de: EP4783303A1
Disclosed in the present application are a battery heating method, apparatus and system, a battery pack, a battery module heating control circuit, an energy storage system, and a readable medium. The battery heating method includes: receiving a battery heating request sent by a second controller of a battery; in response to the battery heating request, acquiring at least one piece of energy information and management information of an energy supply end of an inverter; if the at least one piece of the energy information and the management information meets a preset heating condition, generating a heating permission instruction; sending the heating permission instruction to the second controller of the battery, so that the second controller establishes an electrical connection between a heating apparatus and an output end of the inverter; and controlling the inverter to use the energy supply end to supply power to the heating apparatus to heat the battery. The present application may heat the battery in real time, thereby preventing the battery from operating under low-temperature conditions, ensuring charging and discharging requirements of the battery, saving photovoltaic energy, and extending a service life of the battery.
Resumen de: WO2025062155A1
The present invention relates to composite materials and processes for forming said composite materials. Such composites can find use in electrode and battery applications. The invention also relates to cathodes comprising the composites.
Resumen de: EP4783273A1
0001 An energy storage device according to one aspect of the present invention includes: a plurality of electrode body units each having an electrode body in which a positive electrode and a negative electrode are laminated, and an isolation layer laminated on an outermost surface of the electrode body; and a container accommodating the plurality of electrode body units and having a safety valve, in which the plurality of electrode body units adjacent to each other are in contact with each other at the isolation layers, the isolation layer includes a resin layer and an inorganic layer, and a total thickness of the isolation layers that separate the electrode bodies in the plurality of electrode body units adjacent to each other is 50 µm or more and 110 µm or less.
Resumen de: EP4782199A1
0001 The present specification discloses a composite material and a use thereof. In one example, the composite material may be a composite material in which a metal plate and a plastic plate are joined to each other, and may be a composite material in which an internal space exists at the joint interface of the metal plate and the plastic plate. According to the contents disclosed in the present specification, when the composite material is used as a heat dissipation material (e.g., a heat sink) in which a fluid such as a cooling medium moves into the internal space, the internal space can be designed so that the fluid can perform stable and effective heat exchange with a heating element, and the like. In addition, according to the contents disclosed in the present specification, high airtightness can be secured in the internal space so that the heat exchange performance can be maintained without loss in the long term. According to the contents disclosed in the present specification, even when the composite material is manufactured in a large area or large size, it can exhibit the excellent heat exchange performance, and durability by airtightness. The present specification also discloses a use of the composite material.
Resumen de: EP4783246A1
0001 A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a nonaqueous electrolyte, and a separator interposed between the positive electrode and the negative electrode. The negative electrode includes a negative electrode current collector, and a negative electrode active material layer supported on the negative electrode current collector. The negative electrode active material layer contains a negative electrode active material, a binder, a thickener, and an additive. The additive is a polymer material having a melting point or thermal decomposition temperature of 200 °C or higher and 500 °C or lower. In a cross section of the negative electrode active material layer, the polymer material is dispersed, forming a plurality of island-like regions. The variance value of a Voronoi diagram when the cross section of the negative electrode active material layer is subjected to a Voronoi tessellation for the island-like regions is 2×10<7> µm<4> or less.
Resumen de: WO2025061259A1
The present invention relates to a magnetically active current collector comprising: a porous, freestanding, three-dimensional (3D) structure comprising of one layer and/or variety of stacked layers of a one-dimensional (1D) nanomaterial, a two-dimensional (2D) nanomaterial, or a mixture thereof, wherein the 1D and/or 2D material is decorated with one or more zero-dimensional (0D), magnetically active particles; and at least one current collector tab; wherein the at least one tab and the three-dimensional structure are connected, and wherein the decorated nanomaterial of the 3D structure is aligned towards the at least one tab.
Resumen de: WO2025064222A1
A composition useful for making cathodes is comprised of a disordered rock salt and acid treated carbon. The composition may be made by milling an acid treated carbon with a disordered rock salt in water to form a mixture wherein the disordered rock salt has a disordered rock salt average primary particle size of at most 400 nm and the acid treated carbon has an acid treated carbon average primary particle size less the disordered rock salt primary particle size, removing the water and agglomerating the mixture to form secondary particles having a secondary particle average particle size of at least 1 micrometer to 20 micrometers. The acid treated carbon is treated with an inorganic acid such as concentrated nitric acid.
Resumen de: EP4783262A1
0001 The present invention relates to a positive electrode material including a single particle positive electrode active material and a method for preparing the same, and is characterized in that a region of high Mn concentration is observed in the single particle positive electrode active material, as analyzed by EPMA.
Resumen de: WO2025103861A1
The invention relates to a method for producing a prismatic battery cell (2), wherein an electrode stack (16) is provided with first electrodes (6) and second electrodes (8) which are stacked one over the other. Arresters (10) of the first electrodes (6) protrude beyond an end face (18) of the electrode assembly (16) in the longitudinal direction (L), and arresters (10) of the first electrodes (6) are compacted and welded together, in particular by means of ultrasonic welding. The compacted arresters (10) are arranged on a flat lateral surface (24) of a contact element (26) of a cell cover (28) of a cell housing (30), said contact element forming a cell terminal, and the compacted arresters are welded to the contact element (26), in particular by means of laser welding. The cell cover (28) is arranged on the electrode stack (16), in particular the cell cover is pushed thereon, such that the cell cover (50), in particular the lateral surface (24), is parallel to the end face (18). The invention additionally relates to such a prismatic battery cell (2) and to a motor vehicle comprising such a battery cell (2).
Resumen de: EP4783291A1
0001 The present application provides a manufacturing device and method for an electrode assembly. The manufacturing device for an electrode assembly comprises a winding pin and a heating component, wherein the winding pin is used for winding an electrode sheet and a separator to form a winding structure, and the heating component is configured to be inserted into the winding center of the winding structure and heat the winding structure. By means of the manufacturing device, the heating component can heat the winding structure at the winding center of the winding structure, such that at least some of ion channels in the separator in the inner ring of the winding structure are melt and close, thereby blocking ion shuttling, facilitating reduction of lithium deposition in the winding structure, and effectively lowering the risk of lithium deposition in a battery.
Resumen de: EP4782513A1
0001 Provided are a binder and a preparation method thereof, a battery, and a power-consuming device. The binder includes an acrylate polymer, a number-average molecular weight of the acrylate polymer is 10 kDa to 3000 kDa, a molecular structure of the acrylate polymer contains side-chain groups, and the side-chain groups include a fluorine-containing chain segment, a cyano chain segment, and a crosslinkable chain segment, where a fluorine element accounts for 3% to 30% by mass in the molecular structure, and a cyano group accounts for 10% to 40% by mass in the molecular structure.
Resumen de: EP4782560A1
0001 A method for recovering metals from battery powder resulting from lithium-ion battery waste, the battery powder containing at least copper, aluminum, and cobalt and/or nickel, the method including: an acid leaching step of leaching the metals in the battery powder into an acidic leaching solution to obtain a metal-containing solution containing at least aluminum ions and cobalt ions and/or nickel ions; and a neutralization step of increasing a pH of the metal-containing solution to precipitate and remove aluminum ions, wherein in the acid leaching step, a plurality of leaching stages are repeated multiple times, the plurality of leaching stages including: a first leaching stage of leaching the metals in the battery powder into an acidic leaching solution, terminating leaching before copper elution, and separating a leached residue to obtain a leached solution; and a second leaching stage of leaching the metals in the leached residue into an acidic leaching solution, and terminating leaching after copper elution to obtain a leached solution, wherein the leached solution obtained in the first leaching stage is used as the metal-containing solution, and the leached solution obtained in the final leaching stage among the plurality of leaching stages is used as the acidic leaching solution in the next first leaching stage, wherein in the acid leaching step, a phosphate ion source and/or a calcium ion source is included in the acidic leaching solution to precipitate aluminu
Resumen de: EP4782559A1
0001 A method for recovering metals from battery powder resulting from lithium ion battery waste, the battery powder containing at least copper, lithium, and cobalt and/or nickel, the method including: an acid leaching step of leaching the metals in the battery powder into an acidic leaching solution to obtain a metal-containing solution containing at least lithium ions and cobalt ions and/or nickel ions; and a metal separation step of separating at least cobalt ions and/or nickel ions from the metal-containing solution, wherein in the acid leaching step, a plurality of leaching stages are repeated multiple times, the plurality of leaching stages including: a first leaching stage of leaching the metals in the battery powder into an acidic leaching solution, terminating leaching before copper elution, and separating a leached residue to obtain a leached solution; and a second leaching stage of leaching the metals in the leached residue into an acidic leaching solution, and terminating leaching after copper elution to obtain a leached solution, wherein the leached solution obtained in the first leaching stage is used as the metal-containing solution, and the leached solution obtained in the final leaching stage among the plurality of leaching stages is used as the acidic leaching solution in the next first leaching stage, wherein after the metal separation step, an acidic or neutral separated solution is obtained, the acidic or neutral separated solution containing at least
Resumen de: WO2025064797A1
A system includes a plurality of energy storage nodes, a power conversion system (PCS), a plurality of sensors to detector or monitor system data that includes component data from or about one or more components of the energy storage system, and a control and management system. Each of the energy storage nodes include a battery storage element. The component data includes battery data, PCS data, or a combination thereof. Control and management system is configured to receive or store the system data; apply analytical models to system data to predict or identify an atypical condition relating to a weakness, damage, or a changed condition in the one or more components of the energy storage system; and responsive to the atypical condition, optimize a maintenance plan for the energy storage system. Components of the energy storage system can include a battery storage element, a power conversion system, or a transformer.
Resumen de: EP4782470A1
0001 The present application provides a conductive adhesive and a preparation method thereof, a negative electrode sheet and a battery, which belongs to a field of battery technology. The conductive adhesive has a structural formula represented by formula (1), where m: n= (1-4): 1.
Resumen de: EP4783261A1
0001 The objective of the present invention is to provide: a method for producing a precursor of a positive electrode active material for a lithium-ion secondary battery which contributes to a reduction in GHG emissions and is easily pulverized; and a method for producing a positive electrode active material for a lithium-ion secondary battery. In addition, the objective of the present invention is to provide: a precursor which can be easily pulverized; and a positive electrode active material for a lithium-ion secondary battery which has a stable crystal structure and good electrochemical characteristics. The method for producing a precursor of a positive electrode active material for a lithium-ion secondary battery includes: a mixing step for mixing a metallic nickel powder and a lithium-containing compound; and an oxidation step for oxidizing the metallic nickel powder after mixing, wherein the precursor obtained after the oxidation step includes a lithium metal oxide having a peak at 2θ=43.5-44.0° as measured by X-ray powder diffraction.
Resumen de: WO2025064411A1
A method for forming smooth film stack layers for energy storage devices is disclosed herein. In one example, a method of smoothing an outer layer of a film stack of an energy storage device comprises forming the outer layer on a current collector of the film stack and energizing a heat source disposed over the outer layer of the film stack to heat the outer layer. The heating of the outer layer of the film stack causes reflow of the outer layer to reduce defects on an outer layer surface.
Resumen de: EP4783206A1
0001 Provided are an electrode (10), a cell (20), a module (31), and a pack (30) which can improve the energy density and output characteristics of a power storage device. The electrode includes a current collector (11) and a material-mixed layer (12) attached to the current collector, and the material-mixed layer contains an Si-containing material (14) and a carbon-based active material (15). In a region (16) of a cross section of the material-mixed layer taken in a stacking direction, which region extends 5 µm in a thickness direction from an interface (13) between the material-mixed layer and the current collector, the ratio R1 of an area of the Si-containing material to the sum of the area of the Si-containing material and an area of the carbon-based active material is 10% or greater and 40% or less. The cell includes an electrode including a lithiated material-mixed layer.
Resumen de: WO2025062005A1
The present disclosure provides a fire protection system for energy storage batteries (100). The present disclosure relates to the technical field of fire protection. It intends to solve the problem of poor fire protection capability of energy storage batteries. The fire protection system for energy storage batteries comprises an energy storage module (1), a storage module (2), a discharge module (3), a conveyance module (4) and a control module (5). The energy storage module (1) has an accommodating space (11), and a plurality of batteries (12) are provided therein. The storage module (2) is provided outside the energy storage module (1), and the storage module (2) comprises a storage container (21). The discharge module (3) comprises a dry ice generator (31) and a discharge member (32), the dry ice generator (31) communicates with the discharge member (32), and the discharge member (32) is provided in the accommodating space (11). The discharging member (32) is provided on one side of the batteries (11). Alternatively or additionally, the discharging member (32) is provided within the batteries (11), and the discharging member (32) is configured to discharge one or more of solid carbon dioxide, liquid carbon dioxide, and gaseous carbon dioxide. The conveyance module (4) comprises a conveying pipeline (41), one end of which communicates with the storage container (21), and the other end of the conveying pipeline (41) communicates with the discharge module (3). The control mo
Resumen de: MX2026003250A
The present disclosure is directed to a component of an electrical energy storage device, wherein the component is formed from a metal sheet or coil and comprises a first surface; and a dielectric coating on the first surface. Also disclosed are methods of making a component of an electrical energy storage device, and electrical energy storage devices that comprise such components.
Resumen de: WO2025062036A1
Disclosed is a battery transport box having a storage space for holding one or more battery modules, wherein the storage space is enclosed by a double-walled housing, the double- walled housing comprising an outer wall and an inner wall with a gap formed therebetween, wherein the inner wall has a plurality of openings connecting the gap and the storage space, and wherein one or more mats of absorption material are arranged in the gap.
Resumen de: EP4782481A1
Provided is carboxymethyl cellulose or a salt thereof capable of suppressing the formation of lumps when mixed with water. The carboxymethyl cellulose or a salt thereof is granular carboxymethyl cellulose or a salt thereof and has a bulk density of from 100 to 400 g/L.
Resumen de: WO2025061672A1
A battery unit for a portable aerosol generating device including a controller, the battery unit comprising: a lithium-ion secondary battery for powering the device, the battery comprising an outlet for venting a gas from the battery; and at least one gas sensor which is located in proximity to the outlet for detecting the vented gas and is configured to output an output signal, wherein the battery unit is configured to be deactivated if the output signal is greater than a predetermined threshold value.
Resumen de: WO2025064342A1
A curable liquid coating composition sprayable on a substrate thereby forming a thin, pin-hole free, thermally conductive dielectric coating exhibiting a combination of improved dielectric strength along with improved thermal conductivity, wherein the composition comprises organic resin, reactive diluent, thermally conductive filler, dispersing agent, initiator, and an additive selected from organic solvent, accelerator and rheology modifier; also provided are methods of producing the compositions, coatings, and substrates comprising curable or cured thermally conductive dielectric coating layers, as well as articles comprising curable or cured coating layers of the composition.
Resumen de: WO2025064826A1
An energy storage system includes a plurality of energy storage nodes, each of which includes a battery storage element, and a plurality of helical piles for coupling the plurality of energy storage nodes to a solid substratum. Two adjacent energy storage nodes share a single helical pile or a fixed number of the plurality of helical piles is determined by site soil and seismic conditions. A method for attaching an energy storage system to a solid substratum is also provided.
Resumen de: EP4783347A1
A battery cell (20), a battery (100), and an electric device are provided. The battery cell (20) includes a housing (21), an electrode assembly (22), a pressure relief mechanism (23), and an insulating piece (24). The housing (21) includes a first wall (211) and a second wall (212) connected to the first wall (211). The electrode assembly (22) is disposed in the housing (21). The second wall (212) surrounds the electrode assembly (22). A first gap (25) is formed between the electrode assembly (22) and the second wall (212). The pressure relief mechanism (23) is disposed on the first wall (211). The insulating piece (24) is disposed between the first wall (211) and the electrode assembly (22). The insulating piece (24) is configured to form an airflow channel (26) in communication with the first gap (25). The airflow channel (26) extends to the pressure relief mechanism (23).
Resumen de: EP4783259A1
The present application provides a positive electrode active material, a method for preparing the same, a positive electrode plate, and a battery, which relate to the field of battery technologies. The positive electrode active material includes a ternary material and lithium manganese iron phosphate. A mass of the lithium manganese iron phosphate is represented by A, a total mass of the ternary material and the lithium manganese iron phosphate is represented by B, where A and B satisfy: 0 < A/B < 50%. The lithium manganese iron phosphate has a hollow spherical structure and has a median particle size ranging from 0.5 µm to 3 µm.
Resumen de: EP4783255A1
The present invention relates to a negative electrode active material for a lithium secondary battery and a method for manufacturing the same. Specifically, the present invention relates to a negative electrode active material comprising a plurality of amorphous carbon layers on nano silicon-crystalline carbon composite particles, and a method for manufacturing the same.
Resumen de: WO2025064662A1
The present invention relates to methods of removing the byproduct halogen gas trapped in anhydrous organic solvents such as gamma-butyrolactone, wherein the trapped species preferably form alkali metal complexes such as alkali metal superhalides, comprising adding lithium oxide or ammonia.
Resumen de: WO2025063852A1
A battery container assembly (1) for storage and recycling of used batteries, wherein the battery container comprises a battery container (3) comprising an electrically non- conductive inner face (10), a label dispensing arrangement (5) and a pressure relief valve (7)
Resumen de: EP4783197A1
A solid electrolyte 10 of the present disclosure contains Li, Ti, F, and O, and a proportion of a Ti-O bond in a group of bonds to Ti is 6% or more. The solid electrolyte 10 may further contain at least one element selected from the group consisting of Be, Mg, Ca, Sr, Ba, Sc, Y, Al, Ga, In, Zr, and Sn. The solid electrolyte 10 may be manufactured by applying a liquid containing oxygen to a quasi-solid electrolyte containing Li, Ti, and F, and then subjecting the quasi-solid electrolyte to a thermal treatment to remove the liquid.
Resumen de: WO2025062329A1
A method and system for conditioning the temperature of a traction battery of an electric or hybrid vehicle equipped with a battery conditioning system are provided, which are configured to calculate a minimum temperature and a maximum temperature of the battery required at the start of charging on the basis of the estimated state of charge of the battery at the start of charging, the maximum charging power that can be delivered by the charging station and the maximum value of current cooling capacity of the conditioning system of the vehicle battery, and to determine a target battery temperature at the start of charging corresponding to the minimum temperature if the current temperature of the battery is lower than the calculated minimum temperature, or corresponding to the maximum temperature if the current temperature of the battery is higher than the calculated maximum temperature, or corresponding to the current temperature of the battery if the current temperature of the battery is between the calculated minimum temperature and the calculated maximum temperature.
Resumen de: EP4783321A2
0001 The present technology relates to a battery pack. The battery pack includes a battery module, a lower pack housing with an accommodation space in which the battery module is installed, and an upper cover coupled to an upper part of the lower pack housing to cover the accommodation space, in which the upper cover includes a first upper cover facing the battery module, and a second upper cover, at least a part of which is spaced apart from the first upper cover to form a heat insulating layer between the first and second upper covers.
Resumen de: WO2025085384A1
Power equipment includes a base, a swappable battery pack, an electric motor powered by the swappable battery pack, a motor controller electrically coupled to the electric motor, and a battery holder or bracket coupled to the base. The battery holder includes a dock connector. The swappable battery pack is coupled to the dock connector and arranged within or on the battery holder so that the swappable battery pack is arranged at an angle relative to the base.
Resumen de: WO2025062093A1
The invention relates to a housing (1) for an electric energy storage battery, which includes a platform (2) configured so that power elements (3) of the battery attach thereto, a protective cover (5) covering the platform (2), and means for mechanically attaching the protective cover (5) to the platform, the platform (2) comprising means for electrical connection of the battery and means (6) for thermal management of the power elements (3). The platform and the protective cover form a structure for containing any thermal runaway of the power elements (3), the housing comprising a battery management system (16) of which at least one portion (16a) is mounted outside the containment structure and is in a heat-exchange relationship with the thermal control means (6) of the power elements (3).
Resumen de: US2025096605A1
0000 Disclosed are systems and methods for charging electrochemical energy storage devices using energy harvesters. Disclosed systems and methods can employ rechargeable electrochemical energy storage devices that exhibit charging voltages that overlap with the output voltage from the energy harvester. Additionally, the electrochemical energy storage devices may exhibit monotonic voltage profiles, advantageously allowing a measured voltage of the electrochemical energy storage device to be used to instantaneously determine a state of charge of the electrochemical energy storage device. The disclosed systems also include those where the energy harvester is coupled to a rechargeable energy storage device for charging, either directly or indirectly, without using any intervening capacitors or other energy storage or voltage boosting components, increasing efficiency of the system and reducing system complexity.
Resumen de: EP4783346A1
A battery cell (102), a battery (100), and a power consuming apparatus are provided, and belong to the field of battery technologies. The battery cell (102) includes a housing (1), terminal-post bodies (3), and a terminal-post cover plate (4). The housing (1) is provided with mounting holes (12). An accommodating cavity (11) is defined in the housing (1). The terminal-post bodies (3) penetrate through the mounting holes (12). The terminal-post body (3) includes an abutting portion (32) abutting outside the housing (1). A sink groove (31) is provided at an end portion of the terminal-post body (3) that is away from the accommodating cavity (11). The sink groove (31) is disposed closer to a central axis (L) of the mounting holes (12) than the abutting portion (32). The terminal-post cover plate (4) covers the terminal-post bodies (3), and includes connection portions (41) connected to the terminal-post bodies (3). Each of the connection portions (41) is disposed at the sink groove (31), is connected to a part that is of one of the terminal-post bodies (3) and that is located at the sink groove (31) and close to a side of the accommodating cavity (11), and is separated from a groove wall of the sink groove (31) close to the abutting portion (32).
Resumen de: WO2025061428A1
The invention relates to a distributor pipe (10) for conducting and distributing fluids in battery cooling systems, with a main body (5) which extends along a pipe longitudinal axis (L), is configured at least in portions as a corrugated pipe, and has corrugated pipe portions (7), wherein the corrugated pipe portions (7) of the main body (5) have circumferentially running corrugation troughs (3) and corrugation peaks (2) which alternate along the pipe longitudinal axis (L). It is provided according to the invention that the distributor pipe (10) comprises at least one connector (1) of a first type and a plurality of connectors (20) of a second type, wherein the distributor pipe (10) is manufactured from the same material as and in one part with the connectors of the first and second type (1, 20) in one manufacturing operation.
Resumen de: EP4782404A2
0001 Disclosed is a process for producing battery-grade lithium carbonate from a wastewater solution containing lithium and sodium recovered from a ternary battery, including the following steps: S1: adding activated carbon into the wastewater solution containing lithium and sodium for mixing to obtain a pretreated solution; S2: adding an extracting agent into the pretreated solution for mixing, and performing a first post-treatment for lithium precipitation, to obtain a lithium precipitation slurry and a lithium precipitation mother solution; and S3: performing a second post-treatment for the lithium precipitation slurry, to obtain battery-grade lithium carbonate. In S2, the extracting agent includes 2-ethylhexyl hydrogen-2-ethylhexyl phosphonate and 1-ethyl-3-methylimidazolium tetrafluoroborate. The technical solution described above solves the problem of low recovery rate in lithium carbonate extraction in the related art.
Resumen de: EP4783247A1
0001 A negative electrode sheet and a battery are provided in the disclosure. The negative electrode sheet includes a negative electrode current collector and a coating. The coating includes an inner layer and an outer layer. The inner layer is close to a surface of the negative electrode current collector, and the outer layer is away from the surface of the negative electrode current collector. A first negative electrode active material in the inner layer includes a silicon-based negative electrode material, and a second negative electrode active material in the outer layer includes a carbon-based negative electrode material.
Resumen de: EP4783292A1
0001 A rechargeable battery may include an electrode assembly wound around a core portion and a current collector plate located on at least one side of the electrode assembly and electrically connected to the electrode assembly. The current collector plate may include a first region in line with the core portion and having a first thickness and a second region in line with an outer portion of the electrode assembly and having a second thickness that may be less than the first thickness.
Resumen de: EP4783316A1
0001 A secondary battery (20) and a battery pack including the same are provided. The secondary battery (20) includes a case (100), an electrode assembly (200) accommodated in the case (100), a cap plate (300) facing the electrode assembly (200), a pair of terminals (310) on the cap plate (300), the terminals (310) having different polarities, a current collector (400) connected to the electrode assembly (200) and extending through a first terminal (310) of the terminals (310), and a welded portion (500) between the current collector (400) and the first terminal (310).
Resumen de: EP4783305A1
A secondary battery, including an electrode assembly including a first electrode tab on one side and a second electrode tab on another side, a case having open side(s) and accommodating the electrode assembly, a first cap plate coupled to the at least one open side of the case, a first electrode terminal electrically connected to the first electrode tab and being exposed outside the first cap plate, a first sub-plate electrically connecting the first electrode tab and the first electrode terminal, and a first insulator between the first cap plate and the electrode assembly, wherein the first sub-plate includes a first plate portion coupled to the first electrode tab, a first tab portion having one end coupled to the first plate portion and another end coupled to the first electrode terminal, and a first coating layer on at least a part of a surface of the first tab portion.
Resumen de: EP4783312A1
0001 A cap assembly, including a cap plate, an insulating plate on a surface of the cap plate, a coupling part extending from the cap plate toward the insulating plate, the coupling part being fixed to the insulating plate, the coupling part including a body extending toward the insulating plate, and a support on an end portion of the body, the support extending in a different direction from the body and is fixed to the insulating plate.
Resumen de: EP4783276A1
0001 A secondary battery includes an electrode assembly, a case accommodating the electrode assembly, a cap assembly, and a sealing tape surrounding an outermost portion of the electrode assembly, wherein the sealing tape includes a plurality of first protrusions protruding in a first direction, and a plurality of second protrusions connected to the plurality of first protrusions and protruding in a second direction, the plurality of first protrusions and the plurality of second protrusions are arranged alternately, the plurality of first protrusions are located on an upper side of a reference line, the plurality of second protrusions are located on a lower side of the reference line, and at least some of the plurality of first protrusions or the plurality of second protrusions cover at least a portion of an upper surface or a lower surface of the electrode assembly.
Resumen de: EP4783309A1
A secondary battery (10) includes: an electrode assembly (210); a case body (110) accommodating the electrode assembly (210); a cap plate (120) sealing an opening of the case body (110); and a positive electrode terminal (130_1) and a negative electrode terminal (130_2), each of the positive electrode terminal (130_1) and the negative electrode terminal (130_2) being electrically connected to the electrode assembly (210), coupled to the cap plate (120), and protruding in a first direction (D1) from an upper surface of the cap plate (120). The cap plate (120) includes a vent portion (122) located between the positive electrode terminal (130_1) and the negative electrode terminal (130_2). A first length of the case body (110) in the first direction (D1) is longer than a second length of the case body (110) in a second direction (D2) perpendicular to the first direction (D1), and the second length is longer than a third length of the case body (110) in a third direction (D1) perpendicular to each of the first direction (D1) and the second direction (D2).
Resumen de: EP4783307A1
A secondary battery includes a battery can having an internal space and an opening, an electrode assembly in the internal space of the battery can, a cap assembly fixed to the opening of the battery can, the cap assembly being connected to the electrode assembly, and a bottom retainer on a bottom portion of the battery can, the bottom retainer holding and supporting the electrode assembly.
Resumen de: EP4783311A1
A secondary battery, a battery module including the same, and a method of manufacturing the same are disclosed. A secondary battery includes a case including an opening portion, an electrode assembly accommodated in the case and including a first tab member and a second tab member, a cap plate including a cap plate body located in the opening portion, and a cap plate terminal hole passing through the cap plate body, a terminal part including a first terminal electrically connected to the first tab member, and a second terminal electrically connected to the second tab member, and passing through the cap plate terminal hole, a first insulating part in contact with the terminal part to support the terminal part, and a second insulating part on the cap plate to support the first insulating part.
Resumen de: EP4783267A1
0001 An electrode plate according to an example embodiment may include an electrode plate including a substrate including a base layer and a first conductive layer and a second conductive layer disposed on upper and lower surfaces of the base layer, and an active material layer disposed on at least one surface of the substrate. The substrate includes a connector including a conductive material, the connector penetrating the first conductive layer, the base layer, and the second conductive layer, and connecting the first conductive layer and the second conductive layer. The substrate further includes a penetrator penetrating the connector.
Resumen de: EP4783306A1
A cap assembly (100) includes: a cap plate (110) including at least one first engaging portion (113); and at least one terminal assembly (120) including a second engaging portion (122) fitted and engaged with the first engaging portion (113).
Resumen de: EP4783308A1
A secondary battery includes an electrode assembly, a case accommodating the electrode assembly therein, the case having a vent hole on at least one side thereof, and a vent portion arranged in the vent hole, the vent portion including a polymer layer and a brittle layer on the polymer layer.
Resumen de: EP4783317A1
0001 A secondary battery (2) includes a case (100), an electrode assembly (200) inside of the case (100) and including a first electrode (210) and a second electrode (220), a first tab member (240) including a first inner tab member (241) and a first outer tab member (242) extending in a first direction from the first electrode (210), a first terminal (310) protruding outward from the case (100), a first current collector (410) inside of the case (100) and contacting the first terminal, a first inner plate (420) connected to the first current collector (410) and contacting the first inner tab member, the first inner plate (420) has a first thickness in the first direction, and a first outer plate (430) connected to the first current collector (410) and contacting the first outer tab member (242), the first outer plate (430) has a second thickness in the first direction different from the first thickness.
Resumen de: EP4783335A1
0001 A secondary battery includes a case having an opening formed therein, an electrode assembly accommodated in the case, a cap plate fixed to the case, and a vent formed in at least one of the case and the cap plate. The vent includes a notch that includes a notch penetration portion extending through the at least one of the case and the cap plate and opening to an inside of the secondary battery and a notch blocking part that closes the notch penetration portion.
Resumen de: EP4783336A1
A cap assembly for a secondary battery, the cap assembly including a cap plate seated on and coupled to an opening in a case that accommodates an electrode assembly, a first vent portion connected to the cap plate, the first vent portion fracturing at a first fracture pressure, and a second vent portion coupled to at least one of the first vent portion or a region adjacent to the first vent portion, the second vent portion fracturing at a second fracture pressure different from the first fracture pressure.
Resumen de: EP4783333A1
0001 A rechargeable battery, including an electrode assembly, a case accommodating the electrode assembly, the case including one side having an open portion, a cap plate sealing the open portion of the case, the cap plate including a through hole, and a pressure controller in the through hole of the cap plate, the pressure controller being open when the pressure inside the case is higher than or equal to a reference value and closed when the pressure inside the case is lower than the reference value.
Resumen de: EP4783299A1
0001 Disclosed is a method for processing batteries, the method comprising deactivating batteries by cooling of the batteries, wherein the cooling comprises ultradeep cooling of the batteries.
Resumen de: EP4782786A1
A system for inspecting curvature of a case corner (82) of a secondary battery, the system including a light source (100) configured to radiate light to a case corner (82) of a secondary battery at a plurality of incidence angles to generate reflected light, resulting in generated reflected light, a camera (200) configured to capture the generated reflected light to acquire a reflected light image of the case corner (82), and an image analyzer (300) configured to analyze the reflected light image and determine whether a curvature state of the case corner (82) is normal.
Resumen de: EP4782134A1
The present disclosure relates to a welding defect detection system and method capable of ensuring the safety and performance of the secondary battery by detecting defects of the welding part of the secondary battery. The system for detecting welding defects for a welding part of a secondary battery includes a primary detection module configured to detect and collect multidimensional image data for a welding part of a secondary battery, a data management module configured to store and manage the primary detection data, a secondary detection module configured to determine whether there is a defect in the welding part based on the stored and managed data, and a result transmission module configured to provide a determination result to a manufacturing execution system.
Resumen de: EP4782396A1
The present disclosure relates to a method for synthesizing a carbon coated lithium iron phosphate, the method comprising the following steps:a. Preparing a FePO4 hydrate precursor by mixing an iron containing compound and a phosphorus containing compound in a solvent at a pH ranging from 1.5 to 3.5 in presence of a precipitating agent that is also a carbon coating source;b. Drying the FePO4 hydrate precursor;c. Mixing the dried FePO4 precursor with a lithium salt and a source of carbon;d. Sintering the mixture obtained after step c) in an inert atmosphere at a temperature ranging from 550°C to 1000°C for 1 to 15h.
Resumen de: EP4782397A1
A lithium iron phosphate precursor, the preparation of which includes: uniformly mixing a metal oxide, a dispersant, a carbon source, a lithium source, and a first lithium iron phosphate in an aqueous solution, followed by a first grinding to obtain a first precursor with a median particle diameter (D50) of 0.35 to 0.39 µm; then adding a second lithium iron phosphate to the first precursor, uniformly mixing, and performing a second grinding to obtain the lithium iron phosphate precursor with a median particle diameter (D50) of 0.35 to 0.39 µm. The overall process provided by the present invention is simple and does not require repeated replacement of materials, reaction environments, or equipment, reflecting the advantages of a continuous process. In addition, the lithium iron phosphate battery cathode material produced from this precursor exhibits high compaction density characteristics.
Resumen de: EP4783320A1
0001 A battery (2) adapted to be inserted into a power tool (1), characterised in that it is provided with a locking mechanism (20) comprising: a first guide (211) located in the battery housing upper part (21); a button (22) movably seated in the battery housing (2), comprising a second guide (221) and a ramp (222); a locking rod (23) and a spring (24). In the fixed position, when the battery (2) is inserted into the power tool (1), and when the button (22) is released, the position of the locking rod (23) becomes fixed and permanent due to the pressure of the spring (24), and, by engaging the protrusion (111), the locking rod (23) locks the battery (2) in the power tool (1), preventing its removal. On the other hand, once the button (22) is pressed, the locking rod (23) moves along the first guide (211) and, at the same time, moves along the second guide (221), and ceases to engage the protrusion (111) of the power tool foot (11), thus allowing the battery (2) to be unlocked and removed from the power tool (1).
Resumen de: EP4783319A1
0001 The present invention relates to a battery holder (10) configured for holding and electrically contacting a battery (32). The battery holder (10) comprises a battery chamber (12) configured to receive the battery (32) and having a longitudinal axis; a first electric contact (14) arranged at a first end portion of the battery chamber (12) and configured to electrically contact a first electric terminal (34) of the battery (32), wherein the first electric contact (14) is configured as a scrape contact to electrically contact a circumferential contact surface of a metal pin (36) of a first electric terminal (34) of the battery (32) at two mutually opposite positions on said circumferential contact surface; and a second electric contact (16) arranged at a second end portion of the battery chamber (12) opposite the first end portion and configured to electrically contact a second electric terminal (38) of the battery (32), wherein the second electric contact (16) is configured as a spring contact to electrically contact a metal contact surface of the second electric terminal (38) of the battery (32) by spring force of the spring contact acting in an axial direction parallel to the longitudinal axis of the battery chamber.
Resumen de: EP4783339A1
A battery housing (100) with integrated venting channels for distributing gas released during thermal runaway, the battery housing comprising: a first side venting channel (102) located on a first side (104) of the battery housing and configured to receive exhaust gas from a battery cell (106) in the event of thermal runaway; a busbar holder (108) connected to the battery housing, the busbar holder comprising a busbar venting channel (202, 302) integrated within the busbar holder; a first fluid connection (204) connecting the first side venting channel to a first opening (206, 306) of the busbar venting channel; a second fluid connection (208) connecting a second side venting channel (114) to a second opening (210, 310) of the busbar venting channel, allowing a gas flow from the first side venting channel, through the busbar holder venting channel and to the second side venting channel.
Resumen de: EP4783324A1
A battery housing (100) for an energy storage system in a vehicle (600), the battery housing comprising: a top structure (102) integrally formed with a load bearing platform (104) configured to support external mechanical loads, the top structure including venting channels (106) arranged within the top structure and in fluid communication with an internal volume of the battery housing, the venting channels being configured to guide exhaust gases generated during a thermal runaway event within the battery housing.
Resumen de: EP4783260A2
0001 The positive electrode active material disclosed herein contains a first positive electrode active material particle and a second positive electrode active material particle. An average particle diameter d<1> of the first positive electrode active material particle is equal to or more than 3 µm and not more than 5 µm, and an average particle diameter d<2> of the second positive electrode active material particle is equal to or more than 0.1 µm and not more than 0.5 µm. Then, when a sum of the first positive electrode active material particle and the second positive electrode active material particle is treated as 100 wt%, a weight ratio A of the second positive electrode active material particle is equal to or more than 2 wt% and not more than 35 wt% and the average particle diameter d<2> and the weight ratio A satisfy a following relationship: A ≦ -25d<2> + 37.5.
Resumen de: EP4783281A1
A method of manufacturing a secondary battery (1) includes: preparing an exterior container (100) having a prismatic shape and provided with a first opening (113); and preparing an electrode assembly (200) including a positive electrode (240) and a negative electrode (210) stacked in a first direction, the electrode assembly (200) having a main body portion (2000) having a substantially rectangular shape including a long side (2100) and a short side when viewed in the first direction; and inserting a portion of the electrode assembly (200) into the exterior container (100) through the first opening (113) along a direction of the long side (2100) while grasping the electrode assembly (200), wherein in the inserting the portion of the electrode assembly (200) into the exterior container (100), control of a position or direction of the electrode assembly (200) based on a magnitude of reaction to the electrode assembly (200) is performed.
Resumen de: EP4783293A1
0001 The present disclosure relates to battery cell contacting systems for an electrical vehicle, to electric vehicles and to methods for servicing a battery system of an electric vehicle. A busbar of a battery cell contacting system comprises a connection feature to which a circuit interconnect such as a flexible printed circuit or a flexible flat cable can be releasably attached, for example when a circuit interconnect already attached to the busbar in a permanent manner is damaged.
Resumen de: EP4783278A1
In a method of manufacturing a secondary battery, inserting an electrode assembly (200) into an exterior container (100) includes a first stage of inserting, into the exterior container (100), a portion of the electrode assembly (200) corresponding to a length of 2/3 or more of a main body portion (2000) of the electrode assembly (200) in a direction of a long side (2100) while grasping the electrode assembly (200), and a second stage of inserting, into the exterior container (100), a remainder of the electrode assembly (200) in the direction of the long side (2100) after the first stage, and at least in the second stage, the exterior container (100) and the electrode assembly (200) are disposed such that the direction of the long side (2100) is oriented in a vertical direction and the electrode assembly is inserted vertically downward.
Resumen de: EP4783244A1
A method of producing a negative electrode slurry comprises:a first kneading step to knead a negative electrode active material containing carbon particles, a water-soluble polymer, and water at a kneading load (1a) of 2.2 Wh/kg or less, and then knead at a kneading load (1b), wherein the kneading load (1b) is more than the kneading load (1a) and within a range of 2.0 to 11.6 Wh/kg; anda second kneading step to knead a kneaded product obtained in the first kneading step, a binder other than the water-soluble polymer, and water at a kneading load (2) of 0.5 Wh/kg or less.
Resumen de: EP4782853A1
0001 Systems, methods, and other embodiments described herein relate to estimating a safety state of a used battery for reuse and recycle applications through utilizing derivative computations of impedance. In one embodiment, a method includes identifying a temperature and a state of charge (SOC) by testing equipment to measure impedance for a used battery from a vehicle. The method also includes removing interference sources by computing first derivatives of real-parts from the impedance and factoring the temperature and the SOC, and the testing equipment measures the impedance. The method also includes estimating a safety state and a physical degradation for the used battery from changes of the first derivatives within a frequency band. The method also includes upon the safety state satisfying a parameter, draw power from the used battery by a device during a reuse operation.
Resumen de: EP4783301A1
0001 A spacer (130) configured to be provided between a pair of adjacent battery cells (110) among two or more battery cells arranged in a preset direction. The spacer (130) includes a spacer body (131) configured to allow a cooling fluid to flow in the spacer body. The spacer body includes opposite surfaces configured to face the pair of adjacent battery cells. The spacer also includes at least one elastic member (133) passing through the opposite surfaces of the spacer body and configured to contact the pair of adjacent battery cells.
Resumen de: EP4783288A1
0001 A solid-state battery and a method of preparing the solid-state battery, the solid-state battery including a cathode, an anode current collector, and a solid electrolyte layer disposed between the cathode and the anode current collector, wherein at least one of the cathode and the solid electrolyte layer includes a sulfide-based solid electrolyte, and at least one of a solvent or a decomposition product of the solvent, the solvent including a C1-C20 alkane compound containing one or more halogen atoms.
Resumen de: EP4783297A1
0001 A secondary battery includes an electrode assembly including a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode, a case accommodating the electrode assembly therein, the case having an opened surface, a cap plate sealing the opened surface of the case, a sensor connection portion located on the cap plate, the sensor connection portion configured to be connected to an external gas pressure measurement sensor, and a first vent portion located inside the sensor connection portion.
Resumen de: EP4783290A1
An electrode includes a substrate including a metal material, an active material layer on a portion of the substrate, resulting in an uncoated portion, an electrode tab at an end of the uncoated portion, and a corrugated portion in the uncoated portion between the active material layer and the electrode tab.
Resumen de: EP4782266A1
The temperature of a battery is raised by an electric heater. A planning unit of an ECU creates a temperature raising plan. A charge electric power amount fee unit price calculation unit calculates a charge electric power amount fee unit price. The temperature raising plan is created such that electric power of the battery is supplied to the electric heater in a time slot in which an electric power amount fee unit price of the external power supply is higher than the charge electric power amount fee unit price, and electric power of the external power supply is supplied to the electric heater in a time slot in which the electric power amount fee unit price is equal to or lower than the charge electric power amount fee unit price. A power controller supplies electric power to the electric heater based on the temperature raising plan.
Resumen de: EP4783350A1
0001 A secondary battery includes a wound electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode, a case accommodating the electrode assembly, the case including a bottom portion, a sidewall portion connected to the bottom portion, and an opening facing the bottom portion, a first electrode tab connected to the first electrode, and a cap assembly coupled to one end of the sidewall portion to seal the opening, the cap assembly including an insulating washer between the cap assembly and each of the electrode assembly and the first electrode tab, and the insulating washer including a base film and a hard coating layer on a surface of the base film.
Resumen de: EP4783277A1
An electrode assembly (1) includes a first electrode (102), a second electrode (104), a separator (106) between the first electrode (102) and the second electrode (104), a first electrode substrate tab (110) connected to the first electrode (102), and a second electrode substrate tab (120) connected to the second electrode (104), wherein the first electrode (102), the second electrode (104), and the separator (106) have a stack structure in one direction, wherein the first electrode substrate tab (110) includes a first substrate (111) protruding from the first electrode (102) in a first direction (211) crossing a stacking direction of the stack structure and a second substrate (113) protruding from the first electrode (102) in a second direction (213) crossing the stacking direction, and wherein the first direction (211) and the second direction (213) differ from each other.
Resumen de: EP4783334A1
0001 A secondary battery includes (10): an electrode assembly (100) comprising a first electrode (110), a second electrode (120), and a separator (130) interposed between the first electrode (110) and the second electrode (120), the first electrode (110), the second electrode (120), and the separator (130) being wound to form the electrode assembly (100); a case (200) having an opening (201) formed on one side and forming a receiving space (210) in which the electrode assembly (100) is accommodated; and a cap assembly (300) coupled to the one side of the case (200) to seal the opening (201), wherein the cap assembly (300) includes: a cap plate (310) coupled to the opening (201) and comprising a terminal hole (311) formed with a step; and a terminal plate (320) coupled to the terminal hole (311) via an insulator part (330) and electrically connected to the first electrode (110), and a height of an upper surface of the cap plate (310) coupled to the opening (201) is a same as a height of an upper surface of the terminal plate (320).
Resumen de: EP4782258A1
0001 Embodiments of this application provide a charging system and a vehicle-mounted charging connection apparatus. The charging system includes a charging pile and the vehicle-mounted charging connection apparatus used in an electric vehicle. The charging pile includes a charging device and a liquid cooling device. The charging device can output a direct current to the electric vehicle via the vehicle-mounted charging connection apparatus, and a liquid-phase cooling medium in the liquid cooling device can transmit the liquid-phase cooling medium to a thermal management system for a power battery in the electric vehicle via the vehicle-mounted charging connection apparatus, so that the liquid-phase cooling medium can be further transmitted to the thermal management system for the power battery while the power battery of the electric vehicle is charged at a high power, to help meet a heat dissipation requirement of the power battery during high-power charging. Therefore, the electric vehicle can be charged at a high power, to shorten charging duration of the electric vehicle.
Resumen de: EP4783249A2
0001 This specification presents a battery anode electrode composition, which comprises a composite particle, comprising Si-comprising active material that is electrochemically reactive with Li ions during battery operation; and a porous scaffolding matrix within which the Si-comprising active material is at least partially disposed, wherein: the porous scaffolding matrix electrically interconnects the Si-comprising active material; and the porous scaffolding matrix is a monolithic particle. In addition, the enclosed presents a method of fabricating a battery anode electrode composition comprising a composite particle, the method comprising forming a porous scaffolding matrix within which Si-comprising active material is at least partially disposed, wherein the Si-comprising active material is electrochemically reactive with Li ions during battery operation, wherein the porous scaffolding matrix electrically interconnects the Si-comprising active material, and wherein the porous scaffolding matrix is a monolithic particle.
Resumen de: EP4783818A2
A solar cell and a photovoltaic module; and the photovoltaic module includes a substrate, busbars, and at least one marker. The busbars are arranged on a same side of the substrate, and include at least a first busbar and a second busbar, the first busbar and the second busbar have opposite polarities, the first busbar has a first pad, the second busbar has a second pad, the first pad and the second pad are arranged sequentially along a straight line parallel to an arrangement direction of the busbars, and a distance from a marker to the first pad is different from a distance from a same marker to the second pad.
Resumen de: EP4783410A2
0001 An electronic device includes a battery, and circuitry configured to detect occurrence of a wireless charging event for wirelessly receiving a first power, control wirelessly charging of the battery using the first power, based on detecting the occurrence of the wireless charging event, detect, in a state of wirelessly charging the battery using the first power, occurrence of a wired connection of an external electronic device to the electronic device, when detecting the occurrence of the wired connection of the external electronic device, determine whether the external electronic device is a wired charging device, control charging the battery of the electronic device using a second power received from the external electronic device over the wired connection, if it is determined that the external electronic device is the wired charging device and control supplying power from the electronic device to the external electronic device over the wired connection while wirelessly charging the battery of the electronic device using the first power, if it is determined that the external electronic device is not the wired charging device.
Resumen de: EP4783245A1
0001 The present disclosure relates to a negative electrode sheet, a lithium-ion battery and an electric device. The compaction density A, the liquid absorption time B and the liquid retention rate C of the negative electrode sheet satisfy the following relational expression: 2.65≤100A/(B×C)≤7.74, where the unit of A is g/cm<3>, the unit of B is s, and the compaction density A of the negative electrode sheet is 1.30 to 1.75 g/cm<3>. By means of controlling 100A/(B×C) to be a value within a specific range, the regulation and control of cycle performance and a high capacity can be realized. The negative electrode sheet not only has a relatively high specific capacity, but also has excellent cycle service life and safety.
Resumen de: EP4783241A2
0001 The present application provides a non-aqueous electrolyte and a secondary battery, a battery module, a battery pack and an electrical device containing the same. The non-aqueous electrolyte includes an electrolyte salt and a non-aqueous solvent, wherein the electrolyte salt comprise a first lithium salt, a second lithium salt and a third lithium salt, and the content A1 of the first lithium salt, the content A2 of the second lithium salt and the content A3 of the third lithium salt, based on the total mass of said non-aqueous electrolyte, satisfy that: A1+A2+A3 is below 1%, Al/A2 is from 0.016 to 40, and A1/ (A2+A3) is from 0.006 to 13.5. This application enables the secondary battery to have good cycle performance, storage performance and kinetic performance at the same time.
Resumen de: EP4783326A1
A vehicle is provided. The vehicle includes a battery pack. The battery pack includes a tray and a plurality of layers of battery modules. The plurality of layers of battery modules are all disposed on the tray. The plurality of layers of battery modules include a first-layer battery module and a second-layer battery module. The second-layer battery module is disposed on a side that is of the first-layer battery module and that is away from the tray. The second-layer battery module includes a first battery module and a second battery module. A quantity of battery cells of the first battery module is less than a quantity of battery cells of the second battery module.
Resumen de: EP4783285A1
0001 Analkali metal-rich NASICON-type solid-state electrolyte, and a preparation method therefor and a use thereof. The chemical general formula of the novel alkali metal-rich NASICON-type solid-state electrolyte is A<1+x+y>M
Resumen de: EP4783345A1
A composite coated separator and a preparation method therefor, and a lithium-ion battery comprising same. The composite coated separator comprises a substrate film and a coating layer formed on at least one surface of the substrate film, wherein the coating layer comprises aramid fibers and an inorganic filler, the inorganic filler is filled into a three-dimensional network structure formed by the aramid fibers, and a filling ratio of the coating layer is 80-98%, the filling ratio of the coating layer being equal to 100%×(1-area of the inorganic filler exposed on the surface of the coating layer/area of the coating layer). In the composite coated separator, the filling ratio of the inorganic filler in the coating layer is appropriate, and the coating layer has the characteristics of high temperature resistance, Gurley gas permeability value and low tendency for powder shedding.
Resumen de: EP4783266A1
0001 The present application provides a positive electrode plate, a secondary battery, a battery module, a battery pack and a power consuming device, wherein the positive electrode plate comprises a positive electrode current collector and a positive electrode film layer having a single-layer or multi-layer structure provided on at least surface of the positive electrode current collector; when the positive electrode film layer has a single-layer structure, at least one of the positive electrode film layers contains both a first positive electrode active material with a chemical formula of LiA
Resumen de: EP4783252A1
0001 A positive electrode material for a lithium ion battery, a preparation method therefor, a positive electrode piece, and a secondary battery. The positive electrode material comprises an inner core, a first shell layer, and a second shell layer. The first shell layer covers the surface of the inner core, and the second shell layer covers the surface of the first shell layer that is away from the inner core. The inner core comprises a first transition metal oxide having a (003) crystal plane, and the first shell layer comprises a second transition metal oxide. For the first transition metal oxide and the second transition metal oxide at least one of the following are different: the space groups and the materials. The included angle between a first interface and plane occupied by the at least part of the (003) crystal plane in the inner core ranges from 80 degrees to 100 degrees, where the first interface is the surface of the second shell layer away from the first shell laver. The material of the second shell layer comprises an amorphous conductive material.
Resumen de: EP4783348A1
0001 The present application belongs to the field of new energy technology. The present application provides a preparation method for copper-aluminum composite pole plate, which comprises: heating the aluminum ingot to 700-800°C for smelting, and allowing the aluminum ingot liquid at 700-800°C to stand still for 0-30 minutes to obtain an aluminum solution, roughening and cleaning the copper strip to complete the surface pretreatment of the copper strip, continuously casting aluminum strips on aluminum solution after being left to stand, and forming pole aluminum bosses through forming rollers, increasing the copper-aluminum bonding strength, and side discharging aluminum waste, molding at room temperature for the forming of fine features of the boss and the shaping of large bosses during rolling, cutting the pole and determining whether the battery pole product meets the standard, thereby improving the preparation process and equipment for the copper-aluminum composite material for the pole. This ensures that the formed battery pole is not of the traditional copper coil type. Subsequently, the aluminum copper formed by warm rolling is detected to distinguish the warm rolling formed aluminum copper that meets the standard.
Resumen de: EP4782159A1
Disclosed is a material retrieving and placing device. The material retrieving and placing device comprises a fixture mechanism and a gripper mechanism. The fixture mechanism comprises a pallet and a first restraining assembly. The first restraining assembly may have the material located on the pallet restrained to the pallet so as to be in a restraint state, the first restraining assembly may disengage from the material and be located around a periphery of the material so as to be in an avoidance state; the gripper mechanism comprises a gripper assembly and a second restraining assembly arranged on the gripper assembly, and the gripper assembly has a bearing state and a separation state; in the bearing state, the gripper assembly bears the material, and in the separation state, the gripper assembly disengages from the material and is located around the periphery of the material; the second restraining assembly may restrain the material to the gripper assembly so as to be in a restraint state; in the avoidance state, the second restraining assembly disengages from the material, and the gripper assembly may switch from the bearing state to the separation state; the first restraining assembly and the second restraining assembly may be simultaneously in the restraint state. (FIG. 1)
Resumen de: EP4783344A1
0001 A separator for a secondary battery including a porous separator substrate including a polymer; and a coating layer on at least one surface of the porous separator substrate. The coating layer includes a crystalline first binder and a noncrystalline second binder. The crystalline first binder and the noncrystalline second binder are independently an aqueous emulsion type binder, thereby ensuring adhesion strength between the separator and a positive electrode and between the separator and a negative electrode even in the presence of an electrolyte solution.
Resumen de: EP4783332A1
A battery module includes a battery assembly including a plurality of sub-packing units, the plurality of sub-packing units respectively including a cell housing, at least one battery cell accommodated in an internal space of the cell housing, and at least one vent hole disposed in the cell housing and connecting the internal space to an outside of the cell housing, and a flame blocking structure coupled to the battery assembly, and including an inlet hole connected to the vent hole, an inner chamber communicating with the inlet hole, an outlet hole communicating with the inner chamber and the outside, and at least one partition wall protruding into the inner chamber.
Resumen de: EP4782857A2
A method of performing a ground fault test on an aggregated battery for an electric work vehicle. The aggregated battery is not connected to the electric work vehicle, and includes a plurality of battery packs. A plurality of contactors are configured to facilitate connection to a circuit and disconnection from the circuit of each of the plurality of battery packs. A ground fault detection tool is connected to the circuit and to a battery management system service tool. If the isolation monitor detects existence of a ground fault, the plurality of contactors are opened. Closure of the plurality of contactors is sequenced to include each of the plurality of battery packs in the circuit with the isolation monitor in turn. The isolation monitor is used to determine whether the battery pack that is included in the circuit comprises a faulty battery pack. The faulty battery pack is disconnected.
Resumen de: EP4783282A2
0001 Provided is a secondary battery having improved impact resistance. The secondary battery includes a battery case comprising an electrode assembly and an accommodation part configured to accommodate an electrolyte, and the electrode assembly and the electrolyte, which are accommodated in the accommodation part, wherein the secondary battery satisfies following Equation (1): W / S ≤ 42
where, in Equation (1), W is an amount of electrolyte per unit capacity of the secondary battery unit: g/Ah, and S is a product of a total length unit: m and a full width unit: m of the electrode assembly.
Resumen de: EP4783298A2
A battery management apparatus according to an example of the present invention may include at least one processor and a memory configured to store at least one instruction executed by the at least one processor. The at least one instruction may include an instruction to detect at least one event requiring an emergency storage of battery management system (BMS) data; an instruction to, upon detecting the at least one event requiring the emergency storage of the BMS data, request for the emergency storage of the BMS data to a first controller in a device including the battery; and an instruction to receive a response to the request for the emergency storage of the BMS data from the first controller and to transmit the BMS data to the first controller.
Resumen de: EP4783283A1
0001 Provided are a secondary battery and an electrical device. The secondary battery includes a negative electrode sheet and an electrolyte solution. The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer disposed on the negative electrode current collector. The negative electrode active material layer includes a negative electrode active material. The electrolyte solution includes an additive. The secondary battery satisfies the condition: 0.81≤y≤3.41, where y = MC W * S BET / P / T
, which can enable the secondary battery to have good cycling performance, low impedance, and a low gas production rate.
Resumen de: EP4782262A2
Disclosed is a battery performance management system and method using an electric vehicle charging station. The battery performance management server collects battery performance evaluation information including identification information and operation characteristic accumulative information of a battery, identification information and driving characteristic accumulative information of the electric vehicle, and latest charging characteristic information of the battery from a plurality of charging stations through a network. Also, the server determines a current SOH corresponding to the collected battery performance evaluation information by using an artificial intelligence model that is trained in advance to receive the battery performance evaluation information and output a SOH of the battery. Also, the server determines a latest control factor corresponding to the current SOH, and transmits the latest control factor to the charging station through the network so that the charging station may transmit the latest control factor to a control system of the electric vehicle to update the control factor.
Resumen de: EP4782375A1
This disclosure discloses a carrying device, a battery production line, and a control method for carrying device, relating to the field of battery technology. The carrying device can reduce the risk of damage to a target object caused by collision during a carrying process of the target object. The carrying device includes: a transport apparatus, a gripping apparatus, and a detection apparatus; where the transport apparatus includes a first drive mechanism; and the gripping apparatus is disposed on the first drive mechanism and is configured to grip a target object. The detection apparatus is disposed on the gripping apparatus and is electrically connected to the first drive mechanism. When the detection apparatus has detected that the target object gripped by the gripping apparatus is about to experience a collision or has experienced a collision, the first drive mechanism can drive the gripping apparatus to move toward the transport apparatus. The carrying device provided by this disclosure is configured to carry objects.
Resumen de: EP4783322A2
The present disclosure relates to a battery module using insulating oil, and a battery pack including the same include a battery cell stack, in which battery cells each formed of edge surfaces and flat surfaces are stacked, electrode leads formed so as to protrude from the battery cells, a frame formed of the upper, lower, left, and right surfaces and covering the upper, lower, left, and right surfaces of the battery cell stack, and end plates covering front and rear surfaces of the battery cell stack, wherein space parts are formed between the edge surfaces and the frame and between the edge surfaces and the end plates, and insulating oil for cooling the plurality of battery cells is filled and flows in the space parts, and the insulating oil makes contact with the battery cells and the electrode leads.
Resumen de: EP4782405A1
Disclosed are lithium-containing precursor material and a preparation method therefor, and lithium-ion cathode material, where the lithium-containing precursor material has a chemical formula of LixMyD, M is at least one of Ni, Co, Mn, Al, or Mg, and D is one or more of CO32-, OH-, and C2O42-; a 2θ diffraction angle of the lithium-containing precursor material has characteristic peaks in an XRD pattern of a Cu target Kα1, and the characteristic peaks P1 and P2 are 20°-22° and 31°-33°, respectively, and an intensity ratio of the peaks (p1/p2) is 0 < (p1/p2) ≤ 10. Lithium and other metal elements in the lithium-containing precursor material achieve bulk molecular-level dispersion, such that neither batching nor mixing is required, ion migration resistance becomes small, sintering temperature is lowered, and the production costs are reduced . Moreover, lithium ion and metal salt have co-precipitation reaction, thereby reducing wastewater discharge by more than 30%.
Resumen de: EP4783284A2
The present invention relates to an electrode and a secondary battery including the same, the electrode including an electrode active material layer which comprises an electrode active material and a conductive agent, the conductive agent comprising multi-walled carbon nanotube units and carbon nanotube structures in which single-walled carbon nanotube units are bonded to each other, wherein the carbon nanotube structures have an average diameter of 2 nm to 200 nm.
Resumen de: PL454525A1
Przedmiotem zgłoszenia jest przedstawiony na rysunku moduł tnący elektrody akumulatora wtórnego typu kasetowego, który zawiera: górne ostrze zainstalowane tak, aby było zamontowane na górnym uchwycie; dolne ostrze zainstalowane tak, aby było zamontowane na dolnym uchwycie; oraz zespół regulacyjny mający wspornik uchwytu górnego ostrza do zamontowania uchwytu górnego ostrza oraz elementy regulacji luzu i elementy regulacji prostopadłości przeznaczone do regulacji luzu i prostopadłości pomiędzy górnym ostrzem a dolnym ostrzem poprzez elastyczne dociskanie i przechylanie uchwytu górnego ostrza.
Resumen de: FR3171445A1
La présente invention concerne procédé de fabrication d’une pièce massive comportant un matériau à changement de phase solide-solide, le procédé comportant les étapes suivantes : - S1 : porter une composition initiale comprenant un matériau à changement de phase solide-solide à une température T1, le matériau comportant un composé hydride organique/inorganique à changement de phase solide-solide présentant un état ramolli dans une plage de température de ramollissement, la température T1 étant comprise dans la plage de température de ramollissement du composé, pour obtenir une composition ramollie qui présente une forme initiale ; - S2 : mettre en forme la composition ramollie dans une forme finale différente de la forme initiale ; et - S3 : refroidir la composition dans sa forme finale pour obtenir la pièce massive.
Resumen de: FR3171444A1
La présente invention concerne un système (20) comprenant :- un dispositif (22) susceptible de changer de température ; et - une pièce de régulation thermique (8, 24) montée au contact du dispositif (22) et configurée pour réaliser un transfert thermique avec le dispositif, la pièce de régulation (8, 24) étant une pièce massive comprenant un matériau à changement de phase solide-solide comprenant au moins un composé à changement de phase solide-solide, le composé à changement de phase solide-solide étant un composé hybride organique/inorganique, le matériau présentant une première structure solide lorsque le matériau est à une température inférieure à une température de transition du composé à changement de phase et présentant une deuxième structure solide, différente de la première structure solide, lorsque le matériau est à une température supérieure à la température de transition. Figure de l’abrégé : Fig. 3a
Resumen de: FR3171544A1
Accumulateur encapsulable dans un laminé, laminé comportant ledit accumulateur et procédé de fabrication dudit laminé. L’invention concerne un accumulateur Li-ion (1), comprenant :- au moins une cellule électrochimique comprenant une cathode (3), une anode (4) et un électrolyte (2) intercalé entre la cathode et l’anode, l’électrolyte comprenant au moins un solvant et un sel de lithium, chaque solvant de l’électrolyte présentant une température d’ébullition supérieure à 160 °C, le sel de lithium étant stable jusqu’à une température supérieure à 180 °C, voire 300 °C, la cathode et l’anode comprenant chacune une couche de passivation stable jusqu’à une température supérieure à 200 °C ;- un emballage (7) contenant avec étanchéité la cellule électrochimique en étant traversé par une partie de deux languettes formant des collecteurs de courant (5, 6) de l’accumulateur Li-ion qui s’étendent dans le plan de la cellule électrochimique. Figure pour l’abrégé : Fig. 3
Resumen de: FR3171541A1
La présente invention a pour objet un procédé de détection d’un emballement thermique d’un élément électrochimique de stockage d’énergie mis en œuvre par une unité d’analyse acoustique, comprenant les étapes successives suivantes d’enregistrement (E1) d’un signal acoustique dudit élément électrochimique, de traitement (E2) dudit signal acoustique par une décomposition en transformée de fourrier et l’enregistrement d’un spectre fréquentiel dudit signal acoustique traité, de comparaison (E3) dudit spectre fréquentiel avec au moins une table d’enveloppe de spectre prédéterminée et l’enregistrement d’une table de correspondance spectrale identifiant un niveau de correspondance entre le spectre fréquentiel et la table d’enveloppe de spectre prédéterminée pour une pluralité de plages de fréquence, de détermination (E4) d’un score de reconnaissance calculé à partir de la somme des niveaux de correspondance de la table de correspondance spectrale, de détection (E5) d’un emballement thermique lorsque le score de reconnaissance est supérieur à un seuil prédéterminé. Figure 1.
Resumen de: FR3171545A1
L’invention concerne une cellule poche (CP) comprenant un support de cellule (S) connecté à des collecteurs (CA, CC) de deux bornes électriques, le support de cellule (S) ayant une forme rectangulaire plane ou enroulée, et étant enveloppé dans une enveloppe étanche (FA),la cellule poche (CP) présentant deux largeurs et deux longueurs (L1, L2), les longueurs (L1, L2) de taille supérieure aux largeurs,caractérisée en ce que les collecteurs (CA, CC) de chaque borne sont répartis ou s’étendent le long d’une ou des deux longueurs (L1, L2),et en ce que l’enveloppe (FA) comprend des moyens de dégazage le long d’une ou des deux longueurs (L1, L2). L’invention concerne également une batterie, un véhicule et un procédé sur la base d’une telle cellule. Figure 2
Resumen de: FR3171551A1
Un procédé est mis en œuvre dans un système comprenant une batterie rechargeable comportant des cellules ayant chacune un état de charge estimé et une capacité de stockage estimée. Ce procédé comprend une étape (10-60) dans laquelle, lorsqu’un temps écoulé depuis une dernière quantification de déséquilibre entre cellules est supérieur à un seuil choisi, on estime des écarts d’équilibrage des cellules en fonction des états de charge estimés, puis on effectue un équilibrage de chacune des cellules en fonction de l’écart d’équilibrage estimé correspondant et de la capacité de stockage estimée correspondante. Figure 3
Resumen de: FR3171399A1
Un procédé est implémenté dans un véhicule comprenant une batterie de puissance propre à fournir de l’énergie électrique, et une installation de chauffage/refroidissement comportant un circuit de chauffage/refroidissement dans lequel circule un fluide caloporteur, couplé à la batterie de puissance et comportant un compresseur propre, lorsqu’il est alimenté en énergie électrique issue de la batterie de puissance, à participer au refroidissement du fluide caloporteur. Ce procédé comprend une étape (10-30) dans laquelle, lorsque la batterie de puissance est utilisée et doit être refroidie mais que le compresseur est défaillant ou est dans un état inconnu, on impose une limitation choisie de l’utilisation de la batterie de puissance. Figure 3
Resumen de: FR3171543A1
L’invention concerne un procédé d’évaluation d’un état de fonctionnement d’un système de refroidissement d’une batterie de traction, le système comprenant un moyen de refroidissement. Selon l’invention, les étapes suivantes sont mises en œuvre par une unité de contrôle informatique : a) Activation (101) du système de refroidissement à un premier instant lorsqu’une température interne de la batterie de traction dépasse une température de seuil, b) Enregistrement (102) au premier instant de la température interne de la batterie de traction et d’une température du moyen de refroidissement, c) Vérification (103) d’au moins une série de conditions comprenant une première condition (1031) qui est remplie si, pendant au moins une partie d’une durée suivant le premier instant, la température du moyen de refroidissement est inférieure à celle mesurée au premier instant et étant non-remplie sinon ; et une deuxième condition (1032) qui est remplie si la température du moyen de refroidissement à un second instant suivant le premier instant est inférieure à celle de la batterie de de traction mesurée au premier instant et étant non-remplie sinon, d) Evaluation (104) d’un état de fonctionnement du système de refroidissement en fonction d’un résultat de l’au moins une série de conditions. L’invention concerne également un dispositif et un véhicule automobile associé. Figure pour l’abrégé : Fig.3
Resumen de: FR3171549A1
L’invention concerne une barre d’interconnexion électrique comportant une barre de conduction électrique (1) et au moins un connecteur électrique à vis (2), la barre de conduction électrique (1) comportant une extrémité, ledit connecteur électrique à vis (2) étant positionné sur ladite extrémité, ledit connecteur électrique à vis (2) comportant un capot d’isolation électrique recouvrant ladite extrémité, le capot d’isolation électrique comprenant une première demi-coque (3) et une deuxième demi-coque (4), caractérisée en ce que la deuxième demi-coque (4) comporte une lèvre (5) apte à se déformer lors de l’assemblage dans un bac de batterie. L’invention concerne en outre un bac de batterie comportant ladite barre d’interconnexion électrique et un véhicule automobile comportant un tel bac de batterie. Figure 1
Resumen de: FR3171542A1
1. Dispositif de connexion électrique, notamment pour véhicule automobile, ledit dispositif comprenant une ou plusieurs sources chaudes (10) et une source froide (12), ladite ou lesdites sources chaudes (10) comprenant un organe électrique (14), ledit dispositif comprenant un caloduc (30), un premier organe d’interface thermique (32) pour un échange de chaleur entre ledit caloduc (30) et ladite source froide (12) et un ou des deuxièmes organes d’interface thermique (34) pour un échange de chaleur entre le caloduc (30) et la ou lesdites sources chaudes (10), ledit caloduc (30) présentant une première surface d’échange de chaleur avec ledit premier organe d’interface thermique (32) et une ou des deuxièmes surfaces d’échange de chaleur avec le ou les deuxièmes organes d’interface thermique (34), lesdites surfaces de chaleur étant configurées de sorte que ledit caloduc (30) fonctionne en épanouisseur thermique. Figure pour l’abrégé : Figure 11
Resumen de: FR3171557A1
Dispositif de connexion électrique, notamment pour véhicule automobile, ledit dispositif comprenant une source chaude (10) et une source froide (12), ladite source chaude (10) comprenant un organe électrique (14) muni d’une première et d’une deuxième bornes de connexion électrique, ledit dispositif comprenant une première et une deuxième barres omnibus de conduction électrique (30a, 30b) ainsi qu’un premier caloduc (32p) relié thermiquement à ladite source froide (12), ladite première barre omnibus (30a) étant reliée à ladite première borne et audit premier caloduc (32p) pour un échange thermique entre ladite source chaude (10) et ladite source froide (12), ladite deuxième barre omnibus (30b) étant reliée à ladite deuxième borne et audit premier caloduc (32p) pour l’échange thermique entre ladite source chaude (10) et ladite source froide (12). Figure pour l’abrégé : Figure 2
Resumen de: FR3171398A1
Station de recharge d’un véhicule électrique La station de recharge comprend : au moins un dispositif de recharge (2) d’un véhicule électrique (1) agencé pour fournir de l’électricité à une batterie électrique d’un véhicule électrique (1), ledit dispositif de recharge (2) comprenant au moins un élément chauffant produisant de la chaleur résiduelle,au moins une batterie électrochimique (4) connectée électriquement au dispositif de recharge (2), ladite batterie électrochimique formant une source de courant pour ledit dispositif de recharge. La station de recharge comprend en outre au moins un échangeur thermique (44) agencé entre l’élément chauffant et la batterie électrochimique (44), ledit échangeur thermique (44) transmettant la chaleur résiduelle produite par ledit élément chauffant à ladite batterie électrochimique (4) afin de favoriser les réactions d’oxydoréduction dans ladite batterie électrochimique (4). Figure pour l'abrégé : 1
Resumen de: US20260213278A1
0000 A method for manufacturing a lithium secondary battery includes preparing a battery cell including a positive electrode, a negative electrode, and an electrolyte, wherein the positive electrode includes a lithium-rich manganese-based oxide in which a content of manganese in all metals excluding lithium is greater than 50 mol %, and a ratio of a number of moles of lithium to a number of moles of all metals excluding lithium (Li/Me) is greater than 1; and charging and discharging the battery cell at least once to activate the battery. Activating the battery includes charging the battery cell to a range from SOC 60 to SOC 100 in a constant current charging mode, and then charging the battery cell in a constant voltage charging mode. A cut-off current at the constant voltage charging mode ranges from 0.06C to 0.5C.
Resumen de: US20260213254A1
0000 Provided is a lithium secondary battery including a negative electrode, a positive electrode, a separator, and a non-aqueous electrolyte, wherein the negative electrode includes a negative electrode active material, the negative electrode active material includes a silicon-based active material, the silicon-based active material has an average particle diameter (D<50>) of 1 μm to 20 μm, the non-aqueous electrolyte includes a lithium salt, an organic solvent, and an additive, the organic solvent includes fluoroethylene carbonate and diethyl carbonate in a volume ratio of 5:95 to 25:75, and the additive includes a compound represented by a specific chemical formula described herein.
Resumen de: US20260213199A1
The present invention relates to: a binder comprising a polyamide polymer having a glass transition temperature of 100° C. to 250° C.; a positive electrode slurry comprising same; a positive electrode; and a secondary battery.
Resumen de: US20260213342A1
The present invention discloses a polymer-coated separator with secondary agglomerates, a preparation method therefor, and a battery. The polymer-coated separator includes a separator substrate, and a polymer coating applied on a surface of at least one side of the separator substrate, wherein the polymer coating includes a plurality of randomly distributed spray coating points, the spray coating points including a plurality of polymer secondary agglomerates formed by agglomeration of polymer primary particles; any one spray coating point in the polymer coating satisfies the following conditions: 25≤A/B≤40000, and 100≤C/A≤106, wherein A represents a projected area of the polymer secondary agglomerates on the separator substrate; B represents a projected area of the polymer primary particles on the separator substrate; and C represents a projected area of the spray coating point on the separator substrate.
Resumen de: US20260213375A1
0000 A battery cell may include: a housing having an opening; an electrode assembly, accommodated in the housing, where a first tab may be disposed on the electrode assembly at an end oriented toward the opening; and an end cap, configured to fit and cover the opening, where the end cap may include a first connector and a rupturable structure. The rupturable structure may be disposed along an edge of the first connector. The end cap may rupture along the rupturable structure when an internal pressure of the battery cell reaches a threshold, so as to release the internal pressure. The battery cell may further include a fixing structure, and the fixing structure may fixedly connect the first connector to the first tab, so as to restrict movement of the first connector.
Resumen de: US20260213382A1
0000 A nonaqueous electrolyte secondary battery, the negative electrode comprises a band-like negative electrode collector and negative electrode mixture layers that are formed on both surfaces of the negative electrode collector, while having a non-facing part that is wound so as not to face the positive electrode from the winding start end, with the separator being interposed therebetween; a first insulating tape is bonded to the inner winding surface of the positive electrode so as to cover the winding start end of the positive electrode; a second insulating tape is bonded to the outer winding surface of the negative electrode so as to extend across a facing part that faces the winding start end of the positive electrode; and the winding termination end of the second insulating tape is positioned closer to the winding start side than the winding termination end of the first insulating tape.
Resumen de: US20260213273A1
0000 Provided is an electrical storage element that can increase the cycle characteristics of a secondary battery during charge and discharge. An electrical storage element 1 includes: a solid electrolyte layer 2; an electrode layer 3 provided on one principal surface of the solid electrolyte layer 2 and containing an electrode active material 5 and a solid electrolyte 6a, 6b ; and a current collector layer 4 provided on a principal surface of the electrode layer 3 opposite to the solid electrolyte layer 2 side, wherein a first electrode layer portion 3A of the electrode layer 3 disposed on the solid electrolyte layer 2 side than a middle of the electrode layer 3 in a direction of thickness of the electrode layer 3 has a larger void fraction than a second electrode layer portion 3B of the electrode layer 3 disposed on the current collector layer 4 side than the middle of the electrode layer 3 in the direction of thickness of the electrode layer 3.
Resumen de: US20260213257A1
0000 The present invention relates to a lithium-deficient halide-rich solid electrolyte substituted with zinc. The present inventors have surprisingly found that these zinc-substituted lithium-deficient halide-rich solid electrolytes display an increased ionic conductivity and a reduced H2S gas evolution upon contact with moisture.
Resumen de: US20260213211A1
A cell, an energy storage or energy supply system including the cell, and to the use of the cell or the supply system to store or supply electricity.
Resumen de: US20260213349A1
An all-solid state battery includes a positive electrode; a negative electrode; a solid electrolyte layer between the positive electrode and the negative electrode; and a first columnar body located at a position in the same layer as that of the positive electrode or the negative electrode in a manner spaced apart from the positive electrode or the negative electrode with a void being sandwiched between the first columnar body and the positive electrode or the negative electrode.
Resumen de: AU2024413842A1
A battery pack (100) and a vehicle. The battery pack comprises: a frame (10), a liquid-cooling plate (6), a bottom guard plate (15), a top cover (16), a battery module (2) and an electrical module (3), wherein the frame (10) is used for enclosing an accommodating cavity (V1); the frame (10) comprises a front side wall (11) and a rear side wall (12), the rear side wall (12) being provided with a side access opening (101); the liquid-cooling plate (6) covers the bottom of the frame (10); the bottom guard plate (15) is detachably connected to a lower portion of the liquid-cooling plate (6), so as to open and close a bottom access opening (61) on the liquid-cooling plate (6); the top cover (16) covers the top of the frame (10); the battery module (2) is located in the accommodating cavity (V1); the electrical module (3) is at least partially mounted in the accommodating cavity (V1); and the electrical module (3) comprises an electrical connection structure (31), a first electrical part (32) and a second electrical part (33), the first electrical part (32) being located on the rear side of the battery module (2) and directly facing the side access opening (101), the second electrical part (33) being located on the front side of the battery module (2) and directly facing the bottom access opening (61), and the electrical connection structure (31) being configured to be electrically connected to the first electrical part (32), the second electrical part (33) and the battery module (
Resumen de: US20260213304A1
A battery housing accommodates a plurality of battery cells of a battery system and includes a housing frame. The housing frame has an interior space to accommodate a plurality of battery cells of a battery system. The housing frame includes side walls and a thermally insulating layer embedded in a plastic member. The plastic member includes an outer plastic layer covering an outer surface of the side walls and an inner plastic layer covering an inner surface of the side walls opposite the outer surface.
Resumen de: US20260213320A1
A cylindrical secondary battery includes: an electrode assembly including a first electrode plate and a second electrode plate; a can having a bottom part and a cylindrical side part, configured to accommodate the electrode assembly, and electrically connected to the first electrode plate; and a cap assembly. The cap assembly includes: a cap plate coupled to one end of the cylindrical side part and electrically connected to the cylindrical side part; and a rivet terminal insulated from the cap plate and electrically connected to the second electrode plate.
Resumen de: US20260213207A1
0000 A high-initial-efficiency negative electrode material comprises a porous carbon matrix, metallic lithium particles, nano silicon particles, and a carbon shell; the porous carbon matrix is a porous carbon microsphere containing through holes with an average hole size of 1 nm-50 nm; the mass of the metallic lithium particles accounts for 10%-50% of the total mass of the high-initial-efficiency negative electrode material; the particle size of the nano silicon particles is between 0.1 nm and 45 nm, and the mass of the nano silicon particles accounts for 20%-70% of the total mass of the high-initial-efficiency negative electrode material. The use of the high-initial-efficiency negative electrode material in the lithium-ion secondary battery can improve the initial Coulombic efficiency of the battery, and the initial Coulombic efficiency of the battery is 99%-105%.
Resumen de: US20260213348A1
The first stack (110A) includes first positive electrodes (112A) and first negative electrodes (114A) alternately stacked in a predetermined direction, and a first separator (116A) at least a part of which covers the first negative electrode (114A) located on the outermost side of the first positive electrodes (112A) and the first negative electrodes (114A) in the predetermined direction. The second stack (120A) includes second positive electrodes (122A) and second negative electrodes (124A) alternately stacked in a predetermined direction, and a second separator (126A) at least a part of which covers the second negative electrode (124A) located on the outermost side of the second positive electrodes (122A) and the second negative electrodes (124A) in the predetermined direction. The interposed positive electrode (130A) is located between the first separator (116A) on the outermost side of the first stack (110A) and the second separator (126A) on the outermost side of the second stack (120A).
Resumen de: US20260213313A1
0000 A cylindrical secondary cell (10) comprising a cylindrical enclosure (11) having a lid (1), an electrode roll (20) arranged in the cylindrical enclosure (11), a current collector disc (15) to be arranged in direct electrical contact with the electrode roll (20), wherein the lid (1) or the current collector disc (15) comprises a number of recessed contact portions (2), the area of the recessed contact portions (2) being 50 to 80 percent of the total area of the lid (1), and wherein the current collector disc (15) is configured to be attached to the lid (1).
Resumen de: US20260213330A1
A secondary battery module includes a plurality of secondary batteries, a module case, a sensing circuit board, a first plate, and a first wire connection part. The plurality of secondary batteries include a first electrode lead disposed at one side thereof. The module case accommodates the plurality of secondary batteries and the first electrode lead passes therethrough via a plurality of slit holes defined in one surface thereof. The sensing circuit board is mounted on the module case and on which a first land part plated with an electrically conductive metal is disposed on a surface thereof. The first plate is bonded to the first land part and the first wire connection part connects the first plate to the first electrode lead through a wire.
Resumen de: US20260213258A1
0000 The present invention relates to a solid electrolyte, a method for manufacturing the same, and a lithium secondary battery comprising the same.
0000 The sulfide-based solid electrolyte according to the present invention is represented by Chemical Formula 1 below.
0000
0000 In Chemical Formula 1, A is a group IIIA element (boron group element), X is a halogen element, and 0
Resumen de: AU2024409782A1
A liquid cooling plate of a battery pack, a battery pack having same, and a vehicle. The liquid cooling plate is provided with a bottom maintenance opening, and a liquid flow channel is provided inside the liquid cooling plate; and a liquid inlet and a liquid outlet are provided in the upper surface of the liquid cooling plate, and the bottom maintenance opening is located between the liquid inlet and the liquid outlet.
Resumen de: AU2024414807A1
A battery assembly and a vehicle having same. The battery assembly comprises: battery packs (2), the battery packs (2) being arranged in sequence in a first direction, and each battery pack (2) being provided with multiple battery cells (60) arranged in sequence in a second direction; a heat exchange plate (1) is provided with a water inlet (10), a water outlet (20), a water inlet flow path in communication with the water inlet (10), and a water outlet flow path in communication with the water outlet (20); the heat exchange plate (1) is provided with heat exchange areas corresponding to the multiple battery packs (2); multiple branch flow paths corresponding to each of battery packs (2) are arranged in the heat exchange areas, the upstream end of each branch flow path is communicated with the water inlet flow path, and the downstream end of each branch flow path is communicated with the water outlet flow path.
Resumen de: AU2024412335A1
A heat exchange plate (100), and a battery assembly and a vehicle having same. The heat exchange plate (100) comprises: a heat exchange plate body (10), a heat exchange surface (11) being formed on the heat exchange plate body (10), and a cooling flow channel (13) and a water inlet (14) and a water outlet (15) in communication with the cooling flow channel (13) being formed inside the heat exchange plate body (10), the cooling flow channel (13) comprising a water inlet flow path (131) and a water outlet flow path (132), the water inlet flow path (131) being in communication with the water inlet (14), the water outlet flow path (132) being in communication with the water outlet (15), and the water inlet flow path (131) and/or the water outlet flow path (132) being provided at the edge of the heat exchange plate body (10); and plurality of branch flow paths (133), each branch flow path (133) being connected to the water inlet flow path (131) and the water outlet flow path (132) and directly facing the heat exchange surface (11) so as to be suitable for heat exchange of a battery pack.
Resumen de: AU2024410808A1
A battery pack and a vehicle. The battery pack comprises a case, a battery module, and an electrical module; the case comprises a front side wall and a back side wall, and a side inspection port is formed on the back side wall; the battery module is located in the case; the electrical module is mounted in the case; the electrical module comprises an electrical connection structure, a first electrical part and a second electrical part; the first electrical part is located on the back side of the battery module and is arranged opposite to the side inspection port; the second electrical part is located on the front side of the battery module; the electrical connection structure is configured to be electrically connected to the first electrical part, the second electrical part and the battery module.
Resumen de: US20260213291A1
0000 Provided are a battery pack, and more particularly, a battery pack in which a CMU (cell monitoring unit) may be easily and conveniently mounted by providing a CMU mounting part, on which the CMU may be mounted, on an end plate constituting a module case, and a battery pack capable of simplifying the entire manufacturing process of the battery pack and increasing space utilization inside the battery pack by applying the battery pack to the battery pack.
Resumen de: US20260213298A1
0000 A heat exchanger (10) for a battery housing comprising a first panel (12), a second panel (14), and a plurality of cooling fluid circulation channels (16) therebetween. The first panel has an exterior surface (18) and a channel surface (20) opposite the exterior surface. The second panel has a cooling surface (22) and an abutment surface (24) opposite the cooling surface, and is welded to the first panel via a network of channel seams. The plurality of cooling fluid circulation channels are defined by the channel surface and the abutment surface. Each of the plurality of cooling fluid circulation channels are disposed between a first and a second channel seam (26a,26b ) and define a central flow cavity (28) that narrows into a first and a second crevice (30a,30b ). Each of the first and the second crevice has a length (L) and a width (W), and L<2>/W that is less than 250.
Resumen de: US20260213367A1
A cylindrical secondary cell (10), comprising a cylindrical enclosure (11) having a sidewall (10c) and at least one open end (10b), an electrode roll (20) arranged in the cylindrical enclosure (11), a lid (1) closing the open end (10b) of the cylindrical enclosure (11), the lid (1) being welded to the cylindrical enclosure (11) at a first location (23), and a current collector disc (15) arranged between the electrode roll (20) and the lid (1) and in direct electrical contact with the electrode roll (20), the current collector disc (15) being welded to the cylindrical enclosure (11) at a second location (24) separate to the first location (23).
Resumen de: US20260213220A1
An electrode assembly includes a first electrode plate, a second electrode plate and a separator between the first electrode plate and the second electrode plate. Each of the first electrode plate, the second electrode plate and the separator has a strip shape having an aspect ratio of more than 1, and the first electrode plate, the second electrode plate and the separator are stacked such that each a length direction of each of the first electrode plate, the second electrode plate, and the separator are parallel to each other. A first side of the separator protrudes beyond a second side of the first electrode plate and is disposed on an electrode active material portion of the second electrode plate, and a second side of the separator protrudes beyond a second side of the second electrode plate and is disposed on an uncoated portion of the first electrode plate.
Resumen de: US20260212092A1
A gas generation amount prediction apparatus includes an obtaining unit configured to obtain measurement data regarding a voltage, a current, and a temperature of a battery, a calculating unit configured to calculate a cathode side reaction (CSR) and an anode side reaction (ASR), based on the measurement data, and a predicting unit configured to predict a gas generation amount of the battery, based on the CSR and the ASR.
Resumen de: US20260213204A1
0000 Disclosed is a lithium ion conducting material excellent in lithium ion input/output characteristics. The lithium ion conducting material of the present disclosure comprises a composite of a polymer and an electrolytic solution. The electrolytic solution comprises a cyclic carbonate as a solvent and a lithium amide salt dissolved in the cyclic carbonate. A molar ratio of the lithium amide salt to the cyclic carbonate is greater than 0.25 and 0.33 or less.
Resumen de: US20260213356A1
0000 An electrical connection assembly and a battery pack signal acquisition device. The battery pack signal acquisition device has: a signal transmission bus; and an electrical connection assembly for electrically connecting a battery cell to the signal transmission bus to collect an electrical parameter of the battery cell. The electrical connection assembly and the signal transmission bus are respectively formed and electrically connected with each other. In the present invention, the electrical connection assembly can be replaced separately without replacing the signal transmission bus, which improves the convenience of use and reduces the later maintenance cost.
Resumen de: US20260208476A1
0000 Provides an aqueous binder composition for a secondary battery electrode, comprising a copolymer and a dispersion medium, wherein the copolymer comprises a structural unit (a), a structural unit (b), and a structural unit (c). The binder composition disclosed herein has improved binding capability. In addition, battery cells comprising electrodes prepared using the binder composition disclosed herein exhibits exceptional electrochemical performance.
Resumen de: US20260213188A1
0000 A lithium secondary battery includes a cathode including a cathode active material including a lithium-transition metal composite oxide particle having a crystal grain size of greater than 500 nm measured through X-ray diffraction (XRD) analysis, and an anode disposed to face the cathode. The present invention provides a lithium secondary battery having improved life-span characteristics while suppressing gas generation due to crack of the particles by controlling the crystal grain size of the lithium-transition metal composite oxide particles.
Resumen de: US20260213502A1
A main line accommodating portion for accommodating a main line integrally configured by bundling the plurality of voltage detection lines and a fixing portion for fixing the main line to the protector are provided inside the protector. The main line includes a straight portion extending in a first direction and an extra length portion formed by contracting a part of the straight portion in the first direction. The main line accommodating portion includes a straight routing region for routing the straight portion, a lead-out opening for leading out the main line from inside of the protector and an extra length routing region for routing the extra length portion by being disposed between the lead-out opening and the fixing portion.
Resumen de: US20260213165A1
A positive electrode active material layer contains a positive electrode active material and a solid electrolyte, where the positive electrode active material contains a particle having a core-shell structure that has a core part and a shell part covering at least a part of a surface of the core part, the core part consists of a lithium transition metal oxide, the shell part consists of a compound containing oxygen and at least one halogen element selected from the group consisting of F, Cl, Br, and I, and the solid electrolyte includes a halide-based solid electrolyte.
Resumen de: US20260213250A1
0000 A nonaqueous electrolyte secondary battery, the negative electrode comprises a band-like negative electrode collector and negative electrode mixture layers that are formed on both surfaces of the negative electrode collector, while having a non-facing part that is wound so as not to face the positive electrode from the winding start end, with the separator being interposed therebetween; the positive electrode comprises a band-like positive electrode collector and positive electrode mixture layers that are formed on both surfaces of the positive electrode collector; a positive electrode exposure part, in which the positive electrode collector is exposed, is formed on the inner winding side of a winding start end part of the positive electrode; and a first insulating tape is bonded to the inner winding side of the positive electrode so as to extend across the winding start ends of the positive electrode mixture layers.
Resumen de: US20260213308A1
0000 A battery cell, a battery, and an electric device are described. The battery cell includes a casing and a first insulating member. The casing is provided with a pressure relief mechanism. The first insulating member wraps the outer surface of the casing, the first insulating member has a first overlapping region, and the first overlapping region does not overlap with the pressure relief mechanism. In this way, the first overlapping region of the first insulating member does not block the pressure relief mechanism, reducing the risk of the pressure relief mechanism failing to release pressure in time due to that the first overlapping region of the first insulating member blocks the pressure relief mechanism, thereby improving the timeliness of pressure relief of the pressure relief mechanism and improving the reliability of the battery cell.
Resumen de: US20260213173A1
A negative electrode plate includes: a current collector; and an active material layer, located on the current collector. The active material layer includes a silicon-based material, a carbon material, and a binder. Mass fractions of silicon in two places of the active material layer are X1 and X2 respectively, the two places cover a same area but are located in different positions, X2>X1, M=X1/X2, and M>0.7. Mass fractions of lithium in the two places of the active material layer are Y1 and Y2 respectively, the two places cover the same area but are located in different positions, Y2>Y1, N=Y1/Y2, and N≥0.5.
Resumen de: US20260213169A1
0000 A method for fabricating a composite material includes forming an emulsion mixture of active material particles and graphene emulsion droplets containing immiscible first and second solvents and a solid-state emulsifier of graphene, wherein the first and second solvents are adapted such that the second solvent resides in an interior of the graphene emulsion droplets with the first solvent as an exterior solvent, and the active material particles reside in the interior of the emulsion droplets; wherein a boiling point of the second solvent is lower than that of the first solvent; and drying the emulsion mixture with subsequent evaporation of the second solvent and the first solvent through fractional distillation to form the composite material having each surface of the active material particles conformally coated with said graphene.
Resumen de: US20260213299A1
0000 A battery pack according to an embodiment of the present disclosure includes: a plurality of battery modules; a plurality of heat sinks formed on a lower side of each of the plurality of battery modules; a first flow path that supplies a coolant to each of the plurality of heat sinks; and a second flow path that discharges the coolant circulated in the plurality of heat sinks, wherein the coolant supplied to each of the heat sinks circulates in a space formed between the heat sink and the lower surface of the module frame, respectively.
Resumen de: US20260213307A1
The present invention relates to a pouch type battery case which includes a pouch film laminate including a sealant layer, a gas barrier layer, and a surface protection layer, wherein the sealant layer is formed of a first polymer that is an innermost layer, the surface protection layer is formed of a second polymer that is an outermost layer, and the gas barrier layer is laminated between the surface protection layer and the sealant layer and is formed of an aluminum alloy film having a thickness of 60 μm to 100 μm and a grain size of 10 μm to 13 μm.
Resumen de: US20260213384A1
0000 A cylindrical battery that is one example of an embodiment comprises: an electrode body that includes a positive electrode lead and a negative electrode lead; and a bottomed cylindrical outer can that accommodates the electrode body. The cylindrical battery has a structure in which a portion where the negative electrode lead is welded to the can bottom inner surface of the outer can is formed at a section of the negative electrode lead separate from the leading end thereof. The cylindrical battery that is one example of an embodiment further comprises an insulation tape that is affixed to at least the upper surface of the leading end portion of the negative electrode lead facing toward the electrode body.
Resumen de: US20260213201A1
0000 This binder composition for a non-aqueous secondary battery contains a copolymer and a tackifier, the copolymer has a first structural unit derived from a monomer (a1) and a second structural unit derived from a monomer (a2), the monomer (a1) is a nonionic compound having only one ethylenically unsaturated bond, and the monomer (a2) is a compound having a carboxyl group and having only one ethylenically unsaturated bond.
Resumen de: US20260211042A1
A battery state prediction apparatus according to an embodiment disclosed herein includes a controller configured to obtain a plurality of pieces of prediction data for predicting the gas generation amount of the battery by applying the battery data to a plurality of machine learning models trained based at least in part on battery data and features included in the battery data and predict a gas generation amount of the battery based on the plurality of pieces of prediction data.
Resumen de: US20260213340A1
A housing for automotive batteries includes an internal volume for housing one or more automotive batteries, the housing including at least one vent valve for venting a flow of fluid from the internal volume to the external environment. The housing includes, in association with each vent valve, a filter element arranged in the internal volume upstream of the vent valve, and configured for intercepting the fluid flow to be vented via the vent valve prior to passing through the vent valve, thereby achieving filtration of the fluid flow.
Resumen de: AU2024401675A1
A composite lithium iron phosphate material, a positive electrode using same, and a lithium-ion battery. Raw materials for preparing the composite lithium iron phosphate material comprise an iron phosphate precursor, a lithium source and a carbon source. The carbon source coats the iron phosphate precursor and the lithium source to form the composite lithium iron phosphate material. The carbon source comprises a synthetic polymer carbon source and a biomass carbon source; and the biomass carbon source comprises carbon fibers.
Resumen de: US20260213171A1
The present disclosure provides an electrode piece and a battery. The electrode piece includes a current collector and a functional layer located on a first surface of the current collector, the first surface is provided with a tab, and the functional layer is composed of a normal area away from the tab and a recessed area near the tab, and a thickness of the recessed area is less than a thickness of the normal area. The present disclosure can effectively prevent problems such as excessive thickness of part of a cell near the tab, thereby improving battery qualities such as safety and charging/discharging rate.
Resumen de: US20260213241A1
The present invention relates to electrolyte compositions comprising distinct redox-active compounds, namely, a redox-active compound, which is phenazine or a phenazine derivative, and a distinct redox-active compound, which is not phenazine or a phenazine derivative. The present invention also relates to the use of such electrolyte compositions as redox flow battery electrolytes. Accordingly, the invention further provides a redox flow battery comprising said compositions.
Resumen de: US20260213200A1
0000 The composite particle includes a copolymer and a polyrotaxane, the copolymer having a first structural unit derived from a monomer (a1) and a second structural unit derived from a monomer (a2), the monomer (a1) is a nonionic compound having only one ethylenically unsaturated bond, the monomer (a2) is a compound having a carboxy group and only one ethylenically unsaturated bond, and the polyrotaxane has a cyclic molecule having a cyclic skeleton and a chain molecule that penetrates an opening of the cyclic molecule and has stopper groups at both ends, and does not contain an ethylenically unsaturated bond.
Resumen de: US20260213357A1
A busbar for battery connection includes a laminated conductor formed by laminating a plurality of conductive bands movably relative to each other entirely in a longitudinal direction, a first insertion hole for connection formed by first through holes respectively provided in the plurality of conductive bands overlapping each other in a first end part in the longitudinal direction of the laminated conductor, the first insertion hole for connection penetrating in a lamination direction of the plurality of conductive bands, and a second insertion hole for connection formed by second through holes respectively provided in the plurality of conductive bands overlapping each other in a second end part in the longitudinal direction of the laminated conductor, the second insertion hole for connection penetrating in the lamination direction of the plurality of conductive bands.
Resumen de: US20260209517A1
A thermally conductive silicone composition comprises (A) 100 parts by mass of an alkenyl group-containing organopolysiloxane; (B) a mixture of components (B1) and (B2), where component (B1) is an organosilicon compound of 1 to 100 silicon atoms containing at least one phenylene structure and at least one silicon-bonded hydrogen atom per molecule, and component (B2) is an organohydrogenpolysiloxane containing an average of 2 to 4 silicon-bonded hydrogen atoms per molecule and having a viscosity of from 1 to 1,000 mPa·s at 25° C., but no phenylene structure in the molecule. The thermally conductive silicone composition further comprises (C) 400 to 3,500 parts by mass of a thermally conductive filler, (D) a siloxane macromonemer, and (E) a catalytic amount of a hydrosilylation reaction catalyst. A thermally conductive member comprising the thermally conductive silicone composition is also provided.
Resumen de: US20260213205A1
Provided are a carbon nanotube dispersion composition and a non-aqueous electrolyte secondary battery by using an electrode composite material slurry and an electrode film using the composition. The carbon nanotube dispersion composition contains containing carbon nanotubes having an average outer diameter of 3 nm or less, a polymer component, and a solvent, in which the polymer component contains a polyvinylidene fluoride resin, which may have a substituent as a main component, and the carbon nanotube dispersion composition has a particle diameter D90 at 90% volume accumulation in the particle size distribution measured by laser diffraction method of 2.0 μm or more and less than 20.0 μm, and a pH of 7.5 or higher.
Resumen de: US20260213343A1
An embodiment of the present invention provides a separator for a non-aqueous secondary battery containing a porous substrate; a heat-resistant porous layer that is provided on one side or on both sides of the porous substrate, and that contains a binder resin and inorganic particles, the inorganic particles having an average primary particle diameter from 0.01 μm to less than 0.45 μm; and an adhesive layer that is provided on one side or on both sides of a laminated body of the porous substrate and the heat-resistant porous layer, and adhesive resin particles adhered to the laminated body.
Resumen de: US20260206874A1
An aerosol provision device is provided. The device comprises a plurality of electrical components, a heating assembly comprising a heater component for heating aerosol generating material, and a battery to power the plurality of electrical components and the heating assembly. In use, the power consumption of the plurality of electrical components is less than about 0.25 W.
Resumen de: US20260213363A1
Disclosed is a battery device, including a battery cell assembly and a sampling assembly. The battery cell assembly includes a plurality of battery cells sequentially connected in series. The sampling assembly includes a plurality of sampling parts, a plurality of connection wire harnesses, and an output port. Each sampling part is electrically connected to at least one connection wire harness, the plurality of connection wire harnesses is all connected to the output port. The plurality of sampling parts includes a first sampling part and a second sampling part, which are provided with a sampling point that can be electrically connected to the series path of the battery cells. In the series path of the plurality of battery cells, the number of the battery cells between the sampling points of at least two adjacent second sampling parts is greater than or equal to two.
Resumen de: US20260213275A1
0000 In a method for manufacturing a battery module, a first laminate is formed by sealing, with a sealing material, the periphery of a region from one outermost electrode foil to one bipolar electrode foil of the battery module. A second laminate is formed by sealing, with the sealing material, the periphery of a region from the other outermost electrode foil to one electrolyte layer of the battery module, namely to one electrolyte layer that is to face the one bipolar electrode foil. The first laminate and the second laminate are stacked on top of each other, and a thermally conductive foil is heated to thermally weld the seal portion to the thermally conductive foil.
Resumen de: US20260213354A1
A battery apparatus, an electric apparatus, and a method for processing a battery apparatus are provided, and pertain to the field of battery technologies. The battery apparatus includes multiple battery cell groups, where the multiple battery cell groups are stacked in a first direction, and each battery cell group includes at least one pouch cell; and each of the battery cell groups located between two ends in the first direction has one terminal in a second direction electrically connected to the battery cell group upstream in the first direction, and the other terminal in the second direction electrically connected to the battery cell group downstream in the first direction; where a flexible bent conductive structure is formed at a connection position of the two interconnected battery cell groups, and the first direction and the second direction are arranged at an angle.
Resumen de: US20260213361A1
A battery cell assembly, a battery apparatus, and an electric apparatus. The battery cell assembly includes: a plurality of pouch battery cells sequentially electrically connected. The pouch battery cell includes a housing, an electrode assembly, and electrode leads. The electrode assembly is disposed within the housing, the electrode leads are electrically connected to the electrode assembly, and at least a portion of the electrode lead is exposed outside the housing. The electrode leads of two adjacent pouch battery cells are directly connected.
Resumen de: US20260213255A1
An electrolyte for a lithium secondary battery according to embodiments of the present disclosure includes a sulfonamide-based compound represented by Chemical Formula 1, used as an additive, and a lithium salt. A lithium secondary battery including the electrolyte for a lithium secondary battery may exhibit improved high-temperature storage properties under high-voltage conditions.
Resumen de: US20260213359A1
0000 A battery device, an energy storage device, an energy storage system, an electric device, and a charging network are disclosed. A parallel unit of the battery device includes a plurality of pouch battery cells connected in parallel. A parallel circuit is provided between at least two pouch battery cells. A thermally conductive housing accommodates the plurality of pouch battery cells in a single parallel unit. A series unit includes the pouch battery cells connected in series to form a series circuit, with cells separately located in multiple parallel units. A current limiter is provided in one of the parallel circuits and is located outside the series circuit to limit the current in the corresponding parallel circuit.
Resumen de: US20260213315A1
A battery apparatus is disclosed, along with an energy storage apparatus, an energy storage system, an electric apparatus, and a charging network. The battery apparatus includes an energy unit having a housing and a pouch battery cell disposed therein. The pouch battery cell comprises a pouch housing, an electrode assembly sealed within the pouch housing, and an electrode lead-out portion at least partially enclosed in the pouch housing and electrically connected to the electrode assembly. A sealing portion is formed at one end of the pouch housing along a first direction, and at least a portion of the electrode lead-out portion extends through the sealing portion. The battery apparatus further includes a liquid collection structure arranged at an end of the pouch battery cell in the first direction, positioned below the sealing portion to collect liquid leakage.
Resumen de: US20260213364A1
0000 Disclosed is a battery apparatus and an electric apparatus. The battery apparatus includes a case, a pouch battery cell assembly, and an electrical member. The pouch battery cell assembly comprises multiple pouch battery cells arranged along a first direction. Each pouch battery cell is bonded to the case and includes a packaging bag and electrode leads positioned at opposite ends of the packaging bag along a second direction. The electrode leads of the pouch battery cells on the same side are sequentially arranged along the first direction. An accommodating gap is formed, along a third direction, between the electrode leads and an end of the battery cell assembly. The electrical member is disposed within the accommodating gap and electrically connected to the electrode leads. The first, second, and third directions are each oriented at an angle relative to the others.
Resumen de: WO2026155437A1
The present invention relates to a battery module for improving cooling performance, and a battery pack and a vehicle comprising same, the battery module comprising: a battery cell assembly in which a plurality of battery cells are stacked; a bus bar assembly electrically connected to the battery cell assembly; a module case accommodating the battery cell assembly and the bus bar assembly and having an opening that is open at both sides; and an end plate coupled to the module case to cover the opening at the front and rear of the battery cell assembly, wherein the end plate is provided with a cooling fan configured to cool the battery cell assembly and the bus bar assembly.
Resumen de: US20260213303A1
0000 Provided are a battery apparatus and an electric device. The battery apparatus includes: a plurality of battery sets, where the battery sets are sequentially arranged along a first direction, the battery sets include a wrapping shell and at least one pouch battery cell, the pouch battery cell is disposed inside the wrapping shell, and among the plurality of battery sets, a heat insulating member is provided between at least two adjacent battery sets.
Resumen de: US20260213297A1
0000 A battery apparatus and an electric device are provided. The battery apparatus includes a plurality of pouch cells and a heat dissipation member. The plurality of pouch cells are arranged along a first direction, and the heat dissipation member is disposed between two adjacent pouch cells.
Resumen de: US20260213338A1
Provided is a battery apparatus including a plurality of pouch battery cells sequentially stacked and electrically connected and a wrapping shell wrapped outside the plurality of pouch battery cells and configured to restrain the plurality of pouch battery cells at least from three directions, a strength of the wrapping shell being higher than a strength of a flexible shell of the pouch battery cell, where a thickness of a plate of the wrapping shell for restraining the plurality of pouch battery cells is less than or equal to 5.2 mm and greater than or equal to 0.2 mm.
Resumen de: WO2026155773A2
Asymmetric non-fluorinated ethers (e.g.. 1,2-methoxy ethoxy ethan(EME), 1-methoxy-2-propoxy ethane (MPE), 1-methoxy-2-isopropoxy ethane (MiPE)). and fluorinated EME solvents exhibit high performance for lithium-metal batteries. Among fluorinated EME-based solvents are 1- methoxy-2-(2-fluoroethoxy) ethane (F1EME), 1-methoxy -2-(2,2-difluoroethoxy) ethane (F2EME), and l-methoxy-2-(2,2,2-trifluoroethoxy) ethane (F3EME). Electrolyte compositions obtained by mixing lithium bis(fluorosulfonyl)imide (LiFSI) with the aforementioned solvents enable high coulombic efficiency and lithium metal compatibility. Cycling with diverse electrodes (NMC811, LFP, NMC532, Ni95, SPAN (sulfurized polyacrylonitrile), and Si) reveals high lithium metal compatibility, oxidative stability, rate performance in high-voltage full cells, and excellent cyclability.
Resumen de: US20260213372A1
A secondary including a first electrode assembly including a plurality of first electrode tabs bonded to each other; a second electrode assembly including a plurality of second electrode tabs bonded to each other and stacked with the first electrode assembly; an electrode lead connected to the first electrode tabs; and a conductive connection member configured to connect the second electrode tabs to the electrode lead is provided. The electrode lead may include a tab bonding part bonded to the first electrode tabs; a bridge part bent or folded from the tab bonding part in one rotation direction; and a lead part bent or folded from the bridge part in another rotation direction. One end of the conductive connection member may be bonded to the bridge part or the lead part.
Resumen de: US20260211043A1
0000 A battery diagnosis apparatus according to an embodiment disclosed herein includes memory and one or more processors configured to obtain a first balancing execution time of a first battery unit, calculate a first balancing execution rate based on the first balancing execution time, calculate a first designated balancing execution rate, and diagnose abnormality of the first battery unit by comparing a first designated balancing execution rate corresponding to a first designated period of time with a reference rate.
Resumen de: US20260213376A1
0000 A battery module including a battery cell laminate having a front portion, a bus bar frame connected to the front portion of the battery cell laminate and including a terminal, a module frame having a front portion, the module frame configured to accommodate the battery cell laminate, an end plate covering the front portion of the module frame, the end plate including a terminal exposing port configured to expose the terminal to an outside and a thermal expansion member fastened together with the terminal. The thermal expansion member is configured to expand when heated.
Resumen de: US20260209528A1
The present disclosure provides aqueous binders that address challenges associated with simple linear polymer binders. In some embodiments, a binder includes Lewis acid sites and Lewis base sites that chemically interact. Different species, such as two different types of polymers or a linear polymer and particle (e.g., made of a different polymer), can be used. A first species may have only Lewis acid sites in (e.g., on) it and a second species may have only Lewis base sites in (e.g., on) it. In some embodiments, linear polymer comprising Lewis base sites (e.g., in its backbone) and polymer particles comprising Lewis acid sites are used to form a supramolecular binder where the Lewis acid sites and the Lewis base sites are chemically interacting. In some embodiments, cationic and anionic polymers are used to form a binder with chemically interacting Lewis acid sites and Lewis base sites.
Resumen de: US20260213311A1
A pouch film laminate according to the present disclosure includes a substrate layer, a gas barrier layer, and a sealant layer, which are sequentially stacked. The gas barrier layer includes stainless steel and has a thickness of 50 μm or more, and a thickness of the substrate layer ranges from 10% to 30% of the thickness of the gas barrier layer. A pouch-type battery case comprising the pouch film laminate and a pouch-type secondary battery comprising the pouch-type battery case are also disclosed.
Resumen de: US20260213332A1
A secondary battery includes an electrode assembly in which a positive electrode, a negative electrode, and a separator are stacked, a first case configured to accommodate the electrode assembly and be damaged when an internal pressure thereof increases to a predetermined pressure or more, and a second case configured to accommodate the first case in an inner space having a negative pressure and collect a gas discharged from the first case.
Resumen de: US20260213267A1
0000 A secondary battery and an electric apparatus are provided. The secondary battery includes a positive electrode plate, a negative electrode plate, and an electrolyte disposed between the positive electrode plate and the negative electrode plate. The electrolyte includes LiFSI with a mass percentage of a. The positive electrode plate includes a positive electrode active material having a Dv99 particle size of y1 μm, where y1 ranges from 5 to 15. The secondary battery satisfies the relationship 100≤y1/a≤10000. By controlling the relationship between the particle size Dv99 of the positive electrode active material and the LiFSI content in the electrolyte, the secondary battery exhibits improved temperature rise performance during fast charging while maintaining battery service life.
Resumen de: US20260213251A1
A battery pressurizing device and a battery production system. The battery pressurizing device comprises a bearing mechanism and pressurizing assemblies. Each pressurizing assembly comprises a pressurizing plate and a plurality of pressurizing units; the pressurizing plate is movably arranged on the bearing mechanism in a first direction; each pressurizing unit comprises an adjustment portion and a pressurizing portion; the adjustment portion is connected to the pressurizing plate and the pressurizing portion; the end of the pressurizing portion in the first direction is provided with an outer end surface, and the outer end surface is used for abutting against a battery cell; and the adjustment portion is used for switching the position of the outer end surface in the first direction.
Resumen de: AU2026205323A1
22989398_1 (GHMatters) P109732.AU.4 Abstract of the Disclosure An electronics module with a housing shaped to conform to the internal shape of a power tool handle. The housing can be made of a metal or a high density polymer to stabilize the handle and enclose electronics within the handle. The module can further include a potting compound provided within openings of the handle to dampen vibrations and resist impact during events that 5 are likely to cause failure at the handle. Abstract of the Disclosure ul u l
Resumen de: US20260208222A1
0000 A spacer shim includes a plate-shaped shim body with predetermined width, length, and thickness; and a flow path having a groove in one surface of the shim body. The flow path include an inflow trench into which a coating solution is introduced in the thickness direction; a first discharge trench and a second discharge trench arranged to be spaced apart in the width direction to independently discharge a coating solution in the length direction; a first bending trench and a second bending trench configured to branch from one side and the other side of the inflow trench, respectively, and extend along the width direction and the length direction; and a first connection trench and a second connection trench configured to extend from the first bending trench and the second bending trench in the length direction, respectively, and communicate with the first discharge trench and the second discharge trench.
Resumen de: US20260213353A1
0000 A wiring module is to be attached to a plurality of power storage elements including electrode terminals, and includes a busbar and a protector including a busbar accommodating portion for accommodating the busbar. The busbar includes electrode connecting portions to be connected to the electrode terminals, a resiliently deformable flexible portion disposed between the adjacent electrode connecting portions and a conductive portion for bringing the electrode connecting portion and the flexible portion into conduction. The conductive portion projects or is recessed from a placing surface disposed on the power storage element side of the busbar. The busbar accommodating portion includes a bottom wall disposed between the busbar and the power storage elements and facing the placing surface and an engaging portion formed on the bottom wall and to be engaged with the conductive portion.
Resumen de: US20260213164A1
0000 The present invention relates to a silicon containing composite material comprising a plurality of silicon nanoparticles located within a carbon matrix, and an amorphous carbon external shell provided encompassing the silicon nanoparticles and carbon matrix, wherein the thickness of the amorphous carbon external shell is between about 10 nm to 5000 nm.
Resumen de: US20260213176A1
0000 A positive electrode active material for secondary batteries includes a lithium metal composite oxide having a crystal structure that can be attributed to the space group Fm-3m. The lithium metal composite oxide contains at least Li, Mn, Ti, and M. The M is a positive element different from Li, Mn, and Ti. The crystallite size of the lithium metal composite oxide is in a range of 1 nm to 100 nm, or in an X-ray diffraction (XRD) profile using CuKα radiation of the lithium metal composite oxide, the half-value width of a diffraction peak attributed to the (200) plane is in a range of 0.10 to 1.8°, based on 2θ.
Resumen de: US20260213352A1
0000 A bus bar assembly including a pair of busbars crossing each other, a shaft disposed at a point at which the pair of busbars cross each other to hingedly connect the pair of busbars, and an elastic member connected between the pair of busbars is provided. 0000 The busbar assembly, which is easily deformable in shape, can be connected to secondary batteries that have various types of electrode leads so as to be applied to various types of battery modules and be fixed without separate additional members
Resumen de: US20260214762A1
0000 Microwave heating technology for manufacturing of composite materials with a particular emphasis on materials that exhibit electrical conductivity is provided. In particular, a flexible mold mat and a mold including resonant electromagnetic structures and a method of producing a mold and a method of using a mold including resonant electromagnetic structures to produce composite products. The flexible mold mat includes a plurality of layers and a curable substance. At least one layer includes a flexible base material and a plurality of flexible electromagnetic resonant structures positioned on the base material.
Resumen de: US20260213302A1
An enclosure comprising a plurality of receptacles each to receive a pouch battery cells and wherein each receptacle includes an aperture in a wall of the receptacle to allow material ejected from the pouch battery cell to leave the receptacle, wherein each receptacle includes a thermally insulative barrier configured to be arranged in each receptacle between the respective pouch battery cell and the respective aperture to protect the pouch battery cell of the respective receptacle from material ejected from a different one of the receptacles, wherein the insulative barrier is one or both of: (a) non-fixedly mounted in the receptacle; and (b) frangible; such that in the event of material from a thermal runaway event being ejected from one of the pouch battery cells, the insulative barrier or pieces thereof is configured to be ejected from the receptacle through the aperture with the material from the thermal runaway event.
Resumen de: US20260213248A1
A battery stack method and system. The battery stack system at least includes a controller, a base support, and a stacking table and a grabbing apparatus that are disposed on the base support. The battery stack method includes: in response to that a tray on the stacking table is in place, determining battery cell information stored in the tray; determining battery cell information of a target battery cell on a battery cell conveying line; and in the case that the battery cell information stored in the tray matches the battery cell information of the target battery cell, controlling the grabbing apparatus to grab the target battery cell and place the target battery cell in the tray.
Resumen de: US20260211057A1
A method for estimating the self-discharge of an electrochemical element on which a balancing current is applied, comprises: obtaining the capacity of the electrochemical element, obtaining a first measurement values comprising measurements of the current and the balancing current applied at first instants, obtaining second measurement values comprising measurements of the state of charge at second instants, and estimating the value of the self-discharge at a second estimation instant by applying an estimation function to the obtained values. The estimation function calculates a first contribution corresponding to a variation of the state of charge and a second contribution corresponding to an accumulation of charge related to the first values.
Resumen de: US20260209074A1
0000 A ternary cathode material precursor has a general formula of NiCoM<1-a-b>(OH)<2>, wherein 0.3≤a<0.98, 0
Resumen de: US20260213186A1
A single-crystal ternary cathode material has an apparent factorZ=(1S(D90))x×H1.2-19.4×0.18x,with 1.1≤Z≤3; x=D90/D10, 2≤x≤5; wherein S(D90) is a number-average circularity equal to a sum of circularities of all target particles divided by n, n is a total number of the target particles. An area and a perimeter corresponding to a two-dimensional projected image of an individual target particle are S1 and l1 respectively, a circle with the area S1 has a perimeter of l2 and a circularity=l2/l1;H=D10′D10×100%,D10′ is a particle size of a material obtained by pressing the single-crystal ternary cathode material under a pressure of 200 MPa, D10 does not exceed 2.4 μm, and D10′ does not exceed 2.3 μm.
Resumen de: US20260208465A1
A thermal insulation device comprising functional fillers enclosed in a bag. The bag is made of a film material comprising at least: an inorganic fiber layer; and a polymer layer, wherein the inorganic fiber layer is layered over the polymer layer. The bag comprises sealed sides formed by sealing the film material. The functional fillers are enclosed in the bag such that the functional fillers do not escape through the sealed sides of the bag. The functional fillers comprise thermal insulation particles in powder form.
Resumen de: US20260208992A1
A conveying apparatus configured to convey multiple electrode sheets formed by segmentation includes multiple conveying roller groups and an offset mechanism. The conveying roller group includes at least one conveying roller, each conveying roller being configured to convey one electrode sheet. The offset mechanism is configured to connect with at least one electrode sheet, and along a width direction of the electrode sheet, the offset mechanism is configured to offset two adjacent electrode sheets from each other.
Resumen de: US20260213180A1
0000 The present embodiments relate to a positive electrode active material for a lithium secondary battery, a method for manufacturing the same, and a lithium secondary battery including the same. A positive electrode active material for a lithium secondary battery according to an embodiment includes a core portion, and a shell portion positioned on a surface of the core portion, wherein the shell portion includes acicular particles whose major axes are oriented in a direction from the core portion toward the shell portion, and the positive electrode active material is represented by the following chemical formula 1.
0000
0000 In Chemical Formula 1, q, x, y, z, a, b, and w are 0≤q≤0.2, 0.0032
Resumen de: US20260213397A1
0000 An antenna-in-package (AiP) module according to one embodiment of the present invention comprises a substrate, a first chipset embedded in the substrate, a second chipset disposed on the substrate, and a radiating unit electrically connected to the second chipset, wherein the radiating unit is shaped as a cover that covers the substrate.
Resumen de: US20260213163A1
The present invention relates to a positive electrode active material for an all-solid-state battery, comprising: a core comprising a lithium transition metal oxide; and a coating layer disposed on the core and comprising a lithium boron oxide, wherein a molar ratio of lithium to boron (Li:B) in the lithium boron oxide is from 3:7 to 3:9.
Resumen de: US20260213197A1
The present invention relates to an anode material for a lithium secondary cell, a precursor for the anode material, a lithium secondary cell, and a manufacturing method of the anode material. A precursor for the anode material according to an aspect of the present invention is an anode material precursor containing graphite, wherein the graphite may have peaks in particle size ranges of 2-8 μm and 10-25 μm, respectively, and a particle size distribution with a D50 of 6-23 μm.
Resumen de: US20260213151A1
An apparatus for manufacturing an electrode according to an embodiment of the present invention includes: a transfer unit configured to transfer a sheet-shaped current collector; an application unit configured to apply a matte layer having reflectance less than that of the current collector on a first area including an edge portion in a width direction of the current collector; a coating unit configured to applying an electrode active material on a second area including a central portion in the width direction of the current collector and disposed at one side of the first area; a non-contact temperature sensor configured to measure a temperature of the matte layer; and a notching unit configured to notch the current collector so as to remove the matte layer and form an electrode tab.
Resumen de: US20260213283A1
0000 A separator includes a base film and a functional coating disposed on the base film, where the functional coating includes a first coating. The first coating is disposed on one side surface of the base film, and the first coating contains functional particles. The functional particles are configured to melt and block pores of the base film during a thermal safety test. The separator is configured in the electrochemical apparatus to improve the thermal safety performance of the electrochemical apparatus. The separator does not melt to block pores during a formation stage, but can rapidly melt to block the pores of the base film during a high-temperature stage, thereby impeding short-circuit current between an anode and a cathode. When the separator is configured in the electrochemical apparatus, the thermal safety performance of the electrochemical apparatus can be improved.
Resumen de: US20260213256A1
0000 The present invention relates to a lithium sulfide powder and a method for producing the same. The method comprises a step of mixing a carbon material and a lithium compound to prepare a lithium-carbon compound; a step of filtering a solution obtained by mixing the lithium-carbon compound with a solvent; a step of adding sulfur powder to the filtrate such that the molar ratio of sulfur added to lithium ions is from 0.01 to 0.04; a step of drying the filtrate; and a step of heat-treating the dried material, whereby lithium sulfide having an oxygen content of from 1.0% to less than 3.5% can be produced.
Resumen de: US20260208862A1
A flotation system for an aircraft that includes a battery system providing power to the aircraft is presented. The battery system provides power to flight propulsion and/or water propulsion. The flotation system can include a water propulsion system enables maneuvering of the aircraft, such as a seaplane, on the surface of water. The system can include waterjets located on floats of the aircraft that enable maneuvering of the aircraft in forward, backward, and lateral directions as well as rotational motion. The systems are quieter in operation than the main engine of the aircraft and provide precision maneuvering for docking or active stabilization of the aircraft's position.
Resumen de: US20260209056A1
The present invention relates to an apparatus for producing lithium chloride and a method of producing the same. The apparatus for producing lithium chloride comprises: a hopper for supplying a lithium compound and a reducing agent; a selective chlorinator connected to a lower portion of the hopper, to which a chloride is supplied and which induces a chlorination reaction; and an extractor connected to the selective chlorinator and configured to extract lithium chloride generated by the chlorination reaction. The amount of residual Li in the lithium compound may satisfy 15 wt % or less, based on weight.
Resumen de: US20260213252A1
The invention relates to a method for manufacturing a battery with an electrode stack and a receiving pouch. The method involves moving a pouch blank insertion position, optically measuring features of both the pouch and the electrode stack relative to the reference system, and calculating an alignment correction. This correction ensures that for electrode stack aligns accurately with the pouch's depression during insertion. The invention also relates to an apparatus for manufacturing a battery which has an electrode stack and a pouch for receiving the electrode stack, which apparatus includes movable workpiece carriers for holding pouch blanks, a gripping device with a position-adjustable and rotatable carrier for transporting the electrode stack, optical systems for detecting component positions, and a control unit for computing necessary adjustments for proper alignment.
Resumen de: US20260213292A1
0000 There is provided a process for treating electronic waste comprising at least one of spent batteries and electronic waste. The process can comprise the following steps: fragmenting the electronic waste to produce a fragmented waste comprising a metal powder, recovering said powder from the fragmented waste wherein the metal powder can comprise rare earth elements (REEs) and basic metals, leaching the REEs and the basic metals from the metal powder to produce a residual metal-depleted solid, enriched leachates and a secondary leachate, extracting the REEs from a REEs-enriched leachate and the secondary leachate and selectively extracting the basic metals from a basic metal-enriched leachate to produce multiple extracted components, each extracted component comprising at least one of the basic metals. Depending on the composition of the electronic waste to be treated, precious metals can also be recovered from electronic waste.
Resumen de: US20260209041A1
0000 A method for purifying a composition comprising a salt of bis(fluoro sulfonyl)imide in the form of a solution, wherein the method comprises the steps of: (I) providing a composition comprising at least one solvent, water in an amount of at least 100 ppm, and at least one salt of bis(fluoro sulfonyl)imide in a first concentration (salt-FSI 1); (II) charging the composition (COMP) into a vessel; (III) subjecting the composition (COMP) to distillation; and (IV) recovering a composition comprising at least one organic solvent, water in an amount lower than 100 ppm, and the at least one salt-FSI in a second concentration (salt-FSI 2), wherein the second concentration (salt-FSI 2) is higher than the first concentration (salt-FSI 1) in the composition (COMP).
Resumen de: US20260213159A1
0000 A cathode active material for a lithium secondary battery according to an embodiment of the present disclosure includes a first cathode active material and a second cathode active material having different average particle diameters. The first cathode active material includes large-particle-diameter lithium metal oxide and a coating layer disposed on the large-particle-diameter lithium metal oxide and including 1.0 to 7.0 wt % of boron, and the second cathode active material includes small-particle-diameter lithium metal oxide and a coating layer disposed on the small-particle-diameter lithium metal oxide and including 3.0 to 12.0 wt % of cobalt.
Resumen de: US20260209889A1
An exemplary method for recovering metals from a feed material may include processing feed material, mixing the processed feed material with one or more sulfide minerals or sulfide chemicals to generate a slurry, reacting the slurry and maintaining a target partial oxygen gas pressure, filtering solids from reacted slurry to form a pregnant leach solution, and precipitating one or more metals from the pregnant leach solution. The feed materials may comprise electrode active material recovered from Li-ion batteries.
Resumen de: US20260213371A1
There is disclosed herein a cylindrical secondary cell (1) and methods for manufacturing the cylindrical secondary cell. The cylindrical secondary cell comprises a cylindrical can (2) having a beading groove (3) formed in a wall of the cylindrical can (2) and arranged around the circumference of the cylindrical can (2), and a first conductive sheet (4), with first electrode coating (4a), wound to form a jelly roll (5) which is arranged in the cylindrical can (2), and wherein the first conductive sheet (4) comprises a portion free of first electrode coating (4a) which protrudes on a first end side (5a) of the jelly roll (5). The cylindrical secondary cell further comprises a current collector disc (6) which is electrically conductive and arranged at the first end side (5a) of the jelly roll (5) and in direct contact with at least part of the portion free of first electrode coating (4a) of the first conductive sheet (4), wherein the current collector disc (6) abuts the apex of the beading groove.
Resumen de: US20260213370A1
There is disclosed herein a cylindrical secondary cell (1) and method of manufacture thereof. The cylindrical secondary cell comprises a cylindrical can (2) having a beading groove (3) formed in a wall thereof and arranged around the circumference thereof. The cell (1) further comprises a first conductive sheet (4), with first electrode coating (4a), wound to form a jelly roll (5) which is arranged in the can (2). The first conductive sheet (4) comprises a portion free of first electrode coating (4a) which protrudes and axially extends from a first end side (5a) of the jelly roll (5) arranged below the beading groove (3), to a can connection surface (9) above the beading groove (9). The can connection surface (9) is arranged at the first end side (5a) of the jelly roll (5) and configured to form an electrical connection from the jelly roll (5) to the can (2), by attachment of the can connection surface (9) to the portion of the first conductive sheet (4) free of first electrode coating (4a).
Resumen de: US20260213210A1
The present invention relates to a lithium metal anode, an anode precursor for same, and methods for producing anode and anode precursor. A lithium metal anode according to another aspect of the present invention comprises: a current collector; a metal layer formed on the current collector; and a protective coating layer formed on the metal layer, wherein the metal layer contains an alloy of lithium in the interface in contact with the protective coating layer, and the protective coating layer is a mixture of a carbon-based material and a binder, the binder may be a polymer obtained by polymerizing a high-strength monomer grafted onto a high-ion conductivity monomer.
Resumen de: US20260211049A1
0000 A processor that performs determination processing for determining whether a contact state between probes P1 and P2 brought into contact with a positive electrode terminal Tp and a metal layer Lm in a secondary battery DUT having capacitance Cd between the positive electrode terminal Tp and the metal layer Lm is satisfactory or unsatisfactory, a storage 7 that stores a threshold value set to a value equal to or less than a capacitance value of capacitance C3 between the probes P1 and P2 in a non-contact state with the positive electrode terminal Tp and the metal layer Lm, and a capacitance value of the capacitance Cd between the positive electrode terminal Tp and the metal layer Lm, and a processor 6 that measures a capacitance value of capacitance (capacitance obtained by adding the capacitance C3 and the capacitance Cd) between the probes P1 and P2 in a contact state.
Resumen de: US20260213270A1
0000 An electrolyte composition that includes a solvent component, the solvent including ethyl acetate and a lithium salt component including one or more lithium salts, and where the concentration of the lithium salt component in the electrolyte composition is greater than 1.0 mol·dm<−3 >but less than 3.0 mol·dm<−3>. The electrolyte composition is as useful as an electrolyte in an alkali metal secondary cell, for example a lithium-ion cell or lithium metal cell.
Resumen de: US20260213282A1
0000 A battery includes a housing and an electrode assembly accommodated in the housing, an inner surface of the housing is provided with a first welding zone, the first welding zone is configured to be welded to the electrode assembly, in secondary ion mass spectrometry testing, the first welding zone (132) includes a negative ion organic peak 118, an ion count ratio of the negative ion organic peak 118 is A1%, and A1≤0.5. The housing may be welded to the electrode assembly through the first welding zone to lead out a positive electrode or a negative electrode of the electrode assembly. an impurity content thereof is significantly reduced, thereby reducing the risk of electrolyte leakage of the battery (100) to improve the safety performance of the battery (100).
Resumen de: US20260213198A1
0000 Provided is an electrode for lithium-ion secondary battery, the electrode comprising an active material layer comprising a particulate active material, the active material comprising an organic sulfur compound and an iron compound, wherein A, A×Arepresents a sulfur element content, in % by mass, in the active material, A
Resumen de: US20260213296A1
0000 A thermal management system of a battery module includes a thermally conductive plate where one or more cells associated with the battery module are in thermal contact with a first side of the thermally conductive plate and where a coolant with ferromagnetic materials is configured to flow in thermal contact with a second side of the thermally conductive plate. One or more coils configured at predefined positions in the battery module are on the first side of the thermally conductive plate where, in an event of heating of the one or more cells, the one or more coils are configured to get electromagnetically induced upon actuation by a DC current. One or more electromagnetically-induced coils on the first side of the thermally conductive plate are adapted to attract the ferromagnetic materials of the coolant toward the second side of the thermally conductive plate.
Resumen de: US20260213555A1
Disclosed is a battery management system based on a wireless network and its operating method. The battery management system includes first to Nth BMUs (Battery Management Unit) and a master BMU that constitute a wireless mesh network. The master BMU is configured to determine network performance of the first to Nth BMUs, determine SOCs using the operation characteristic data received from the first to Nth BMUs, and designate a BMU coupled with a battery module having network performance above the standard and having a SOC satisfying a balancing condition as a router BMU and designate the remaining BMUs as end BMUs. The router BMU is configured to form a communication link with each end BMU, and transmit the operation characteristic data of the battery module collected from each end BMU and the operation characteristic data of the battery module coupled therewith to the master BMU.
Resumen de: US20260213178A1
The present embodiments relate to a positive electrode active material, a method for manufacturing the same, and a lithium secondary battery comprising the same. The positive electrode active material according to an embodiment may have a single particle structure with a D50 of 2 to 7 μm, and the number of grains measured within one particle may be 20 or less as determined by ASTAR analysis.
Resumen de: US20260213085A1
0000 An electric double layer capacitor (EDLC) device (1) for reflow soldering to a printed circuit board (PCB) (2). Device (1) includes a cylindrical thin-walled malleable aluminium housing (3) that extends between an open end (5) and a closed end (6). Housing (3) defines a circular opening (7) adjacent to end (5) and a cylindrical cavity (8) that extends away from opening (7) and which terminates at end (6). A cylindrical capacitor element (9) is received complementarily in cavity (8) and includes two carbon-based electrodes (11, 12). A separator, in the form of two elongate paper-based separator sheets (13, 14) are alternated, and spiral wound together with electrodes (11, 12). Sheets (13, 14) maintain electrodes (11, 12) in a spaced apart and opposed configuration. An electrolyte impregnates electrodes (11, 12) as well as sheets (13, 14) and is contained within cavity (6) for allowing ionic conduction between electrodes (11, 12). The electrolyte has at 1 atm a freezing point of less than 0° C. and a boiling point of more than 200° C. A sealing element, in the form of a rubber lid (15), extends over and seals opening (7). Two terminals (17, 18), in use, each extend between a first end (19) disposed in cavity (8) and a second end (20) disposed externally to cavity (8). Ends (19) are electrically connected to the respective electrodes (11, 12), and terminals (17, 18) extend through opening (7) such that ends (20) are available for electrical connection to PCB (2).
Resumen de: US20260213247A1
A battery cell transport system for a battery cell having a first electrode and a second electrode is provided. The system includes a basket having first, second, third, and fourth side walls coupled to a bottom wall, and an extension member. The extension member is coupled to the first side wall. The basket holds the battery cell such that the first and second electrodes point toward the first and second side walls, respectively. The system includes a transport device that holds the basket thereon. The system includes first and second vertical members disposed proximate to first and second sides, respectively, of the transport device. The extension member contacts the second vertical member when the basket is in an undesired position on the transport device such that the basket is prevented from moving past the first and second vertical members.
Resumen de: US20260213339A1
A battery storage device includes a storage housing with at least one battery cell which is arranged in the interior of the storage housing and contains an electrolyte based on sulfur dioxide. The battery storage device has a safety device with a metering device which comprises an additive for neutralizing the electrolyte, and a switchable distribution device arranged in the interior of the storage housing for releasing the additive. The switchable distribution device can be selectively switched to a first or second metering stage, where the first metering stage involves the release of the additive within the distribution device, and the second metering stage involves the release of the additive outside of the distribution device and into the interior of the storage housing.
Resumen de: US20260208594A1
0000 The invention relates to power sources for electric vehicles and may be used in the transport industry. The purpose of the present invention is to reduce the risk of damage to the electronic components of an electric vehicle during the operation of the modular battery (100,200,300,400). The purpose is achieved by the modular battery (100,200,300,400) of the electric vehicle due to the fact that the control unit (110,210,310,410) enables the execution of the traction motor inverter capacitor precharge logic.
Resumen de: US20260213385A1
0000 An energy storage system (100) is provided. The energy storage system comprises at least one battery stack (102) comprising at least one battery module (104). Each of the at least one battery module comprises a plurality of temperature sensors. The energy storage system further comprises a cooling system (106). The cooling system comprises a pressurized cooling medium source (110), a channel system (108) arranged to selectively provide cooling medium from the cooling medium source to each of the at least one battery module by means of a valve system, and a cooling system controller. The cooling system controller is configured to determine, based on signals received from the temperature sensors of said at least one battery module, that a battery module is in thermal runaway; and activate the valve system to selectively release a predefined amount of cooling medium into the battery module in thermal runaway.
Resumen de: US20260213263A1
The present invention relates to an electrolyte additive and an electrolyte and secondary battery including the same. According to the present invention, the present invention has an effect of providing a secondary battery that is capable of suppressing side reactions inside the battery, improving charging efficiency and output due to low charge resistance, and improving lifespan and high-temperature capacity retention.
Resumen de: US20260213350A1
0000 A buffer pad, a battery cell, a battery, and an electric apparatus are provided. The buffer pad, used inside the battery cell, includes a plurality of buffer members, where the plurality of buffer members are arranged along a first direction, and two adjacent buffer members have different rebound rates under a same pressure.
Resumen de: US20260213336A1
0000 The present application provides a battery cell, a battery, and an electric device. The battery cell includes a housing, a pressure relief mechanism, and a protective member. The housing includes a wall portion. The pressure relief mechanism is provided at the wall portion, and can be actuated to release gas within the housing in a case where an internal pressure or temperature of the battery cell reaches a threshold value. The protective member has a melting point greater than or equal to 300°C, and the protective member covers at least part of the pressure relief mechanism in a thickness direction of the wall portion.
Resumen de: US20260213193A1
0000 A lithium iron phosphate cathode material includes a lithium iron phosphate matrix and a carbon coating layer coated on a surface of the lithium iron phosphate matrix. An average standard deviation of a thickness of the carbon coating layer of the lithium iron phosphate cathode material is σ(d), and 0.05 nm≤σ(d)≤0.35 nm; and an average standard deviation of a carbon content of the lithium iron phosphate cathode material is σ(C
Resumen de: US20260213196A1
0000 A negative electrode material layer includes a first surface and a second surface opposite each other. From the first surface to the second surface, the negative electrode material layer sequentially includes a first region, a second region, and a third region, the third region being located on a surface of the negative electrode current collector. A thickness of the first region, the second region, and the third region each account for ⅓ of a thickness of the negative electrode material layer Based on a mass of the first region, a mass percentage of lithium element is W1, based on a mass of the second region, a mass percentage of lithium element is W2, and based on a mass of the third region, a mass percentage of lithium element is W3, where W1>W2>W3, 1.01≤W1/W2≤2.0, and 1.01≤W2/W3≤2.0.
Resumen de: US20260208592A1
0000 The present disclosure relates to a battery pack and a vehicle system, and the battery pack includes a voltage sensor including a first resistor and a second resistor connected in series between a power supply supplying a certain voltage and a ground terminal, a case surrounding the first resistor and the second resistor, and a variable resistor connected in parallel between a first end and a second end of the second resistor and located outside the case, and a coolant leakage sensor configured to diagnose a leakage of a coolant when a voltage detected at a contact point of the first resistor and the second resistor falls within a reference range calculated based on a conductivity of the coolant.
Resumen de: US20260213309A1
0000 A battery cell including an electrode assembly and a battery housing accommodating the electrode assembly through an open portion at a side, where at least part of an inside surface of the battery housing is coated by a heat resistant coating. The heat resistant coating may cover a beading portion recessed inward from the side. The heat resistant coating may include resin and ceramic particles.
Resumen de: US20260209070A1
For a tricobalt tetraoxide, a Dv50, a grain size D(111) of crystal plane (111), and a BET specific surface area of the tricobalt tetraoxide satisfy the following relationship:3.33g-1≤BET×10-12Dv50×D(111)×lg(Dv50)3≤6.9g-1,wherein the Dv50 of the tricobalt tetraoxide is 3 μm-20 μm. The tricobalt tetraoxide is obtained by pre-sintering and calcining cobalt carbonate with a crystallinity of 30%-80% and a median particle size Dv50 of 3 μm-22 μm.
Resumen de: US20260209042A1
0000 There is provided a two-step melt process for preparing a lithium metal phosphate (LiMPO<4>) cathode material having a defined composition. The process comprises first and second melt steps and an intermediary analysis step between the two melt steps. The first melt step comprises mixing reaction precursors to form a first melt pool having a first melt pool composition. The second melt step comprises adjusting the first melt pool composition based on results obtained from the intermediary analysis step such as to obtain a second melt pool having the defined composition. The reaction precursors comprise Li-, M-, P-containing materials, spent cathode materials from used batteries, out of specification (off-spec) cathode materials, and combinations thereof, M being at least one transitional metal. The second melt step and the intermediary analysis step may be repeated a number of times, as desired, until the defined composition is obtained.
Resumen de: US20260209044A1
There is provided a melt process for preparing a lithium metal phosphate (LMP) cathode material, M being at least one transitional metal. The metal sulfate precursor is used directly with no significant transformation following its extraction from a mine material or recycling from an electrode material of a spent lithium battery. The invention also relates to an LMP cathode material obtained by such process, to a battery having a cathode comprising such material, and to a cathode or battery manufacturing plant which embodies such process.
Resumen de: US20260213190A1
There is provided a melt process for preparing a cathode material of general formula LiFe1-xMnxPO4 in which x varies between 0 and 1. At least one intermediate composition of the process is prepared under air or under non-buffered inert atmosphere. Also, the process comprises at least one correction step for removing any oxidized iron impurities formed.
Resumen de: US20260209888A1
A waste battery processing method includes a discharging process of discharging a waste battery, a dismantling process of dismantling the discharged waste battery into battery cell units, a shredding process of shredding the dismantled waste battery, a roasting process of roasting the shredded waste battery, a pulverizing process of pulverizing the roasted waste battery, and a hydrometallurgical process of extracting and recovering metals from the pulverized waste battery.
Resumen de: US20260213156A1
A lithium-ion battery includes a case, a cell, and an electrolyte solution; the cell includes a positive electrode plate, a negative electrode plate, and a separator; a negative electrode active material includes graphite; a positive electrode active material includes lithium-containing phosphate and a carbon layer located on a surface of the lithium-containing phosphate; the thickness of an active material layer on one surface of the negative electrode plate is 50-95 μm; the thickness of an active material layer on one surface of the positive electrode plate is 60-105 μm; Dv50 of the negative electrode active material is 10-30 μm; a graphitization degree of the negative electrode active material is greater than or equal to 90%; a capacity of the lithium-ion battery is shown as 500 Ah190 cm3.
Resumen de: US20260213341A1
A pouch cell including an electrode assembly, a degassing member for removing gas generated in the electrode assembly, and a pair of case parts accommodating the electrode assembly and the degassing member therein is provided. At least one of the pair of cases may include a cup portion molded to accommodate the electrode assembly and a terrace portion forming an edge of the cup portion, and the degassing member may be disposed on the terrace portion. A manufacturing method for a pouch cell secondary battery where the degassing member is removed when the case is cut along a cutting portion.
Resumen de: US20260213274A1
0000 The all-solid-state battery includes an electrode body formed by stacking a positive electrode and a negative electrode with a solid electrolyte layer interposed therebetween. The solid electrolyte layer is a stack of: a solid electrolyte layer (I) including a porous substrate and having a portion protruding from an end portion of the positive electrode and the negative electrode in a plan view; a solid electrolyte layer (II) bonded to the positive electrode and having a smaller area than that of the solid electrolyte layer (I) in a plan view; and a solid electrolyte layer (III) bonded to the negative electrode and having a smaller area than that of the solid electrolyte layer (I) in a plan view. At least one of (II) and (III) is different from (I).
Resumen de: US20260213272A1
An electrode assembly and a method of manufacturing the same. Particularly, an electrode assembly which prevents the degradation of the lifespan of a battery according to Li-precipitation and a resistance rise by constructing the electrode assembly to include a single-sided positive electrode and manufacturing the electrode assembly at low pressure and temperature.
Resumen de: US20260209069A1
A cathode material for a battery, wherein the cathode material has an anti-fluorite crystal structure and belongs to a family represented by the formula Li5Fe(1-x)AlxO4, wherein x is greater than zero and less than or equal to one.
Resumen de: US20260213295A1
A method of thermal management of a battery, wherein the battery comprises at least one cell and wherein a heating device is configured to heat the battery in response to a heating instruction. The method comprises determining a state of charge of the cell, a cell current of the cell; a first value of a first parameter of the heating device; a reference cell temperature of the cell; a maximum cell temperature and a minimum cell temperature of the cell. In an event that the maximum cell temperature is below a first threshold temperature; the minimum cell temperature of the cell is below a second threshold temperature; and the state of charge of the cell is above a threshold state of charge; the method further comprises instructing the heating device to heat the cell.
Resumen de: US20260213185A1
Disclosed herein are a process for making a particulate (oxy)hydroxide or oxide, a particulate (oxy)hydroxide or oxide, and a method of using the particulate (oxy)hydroxide or oxide.Also disclosed herein is a process for making a particulate (oxy)hydroxide or oxide of TM where TM represents metals, where the process is performed in a cascade of at least three stirred tank reactors.
Resumen de: WO2026152888A1
Provided are a super-ionic conductor electrolyte, a preparation method therefor, a hybrid super-ionic conductor electrolyte, a quasi-solid flexible super-ionic conductor electrolyte, a super-ionic conductor electrolyte for alkaline batteries, and an energy storage device. The super-ionic conductor electrolyte includes an ionic liquid A X, where A is derived from choline or a halide thereof, and X is derived from a pyrimidine carboxylic acid derivative. The super-ionic conductor electrolyte exhibits ultra-high ionic conductivity, thermal stability, electrochemical stability, non-volatility and non-flammability. It possesses the duality of an ionic super-ionic conductor and a green solvent.
Resumen de: WO2026153408A1
The present disclosure relates to the technical field of batteries, and more particularly, to a graphite and a preparation method thereof, a negative electrode plate, a secondary battery, and an energy storage device. The graphite has a first structural stability coefficient X1. The first structural stability coefficient X1 satisfies X1=(Dv90-Dv50) / (Dv90' -Dv50' ), and 0.90≤X1≤1.80, where: Dv90 represents a particle size value prior to roller pressing at which 90%volume of particles of the graphite are smaller; Dv50 represents a particle size value prior to the roller pressing at which 50%volume of the particles of the graphite are smaller; Dv90' represents a particle size value subsequent to the roller pressing at which 90%volume of the particles of the graphite are smaller; and Dv50' represents a particle size value subsequent to the roller pressing at which 50%volume of the particles of the graphite are smaller.
Resumen de: US20260208291A1
0000 A dust removal laser cutting apparatus is provided, which includes a cutting chamber, a first air blowing component, an air extraction component, and a laser cutting component. The cutting chamber includes a top wall, a bottom wall, and a front wall, where the top wall is provided with a material inlet, and the bottom wall is provided with a material outlet; one end of the front wall is connected with the top wall, another end of the front wall is connected with the bottom wall, the front wall is provided with a cutting window for laser to pass through, the laser cutting component is arranged adjacent to the cutting chamber, and the laser cutting component is capable of emitting laser through the cutting window and cutting a material belt in the cutting chamber.
Resumen de: US20260213383A1
An electrode assembly includes a jelly-roll structure in which a cathode, a separator, and an anode are wound around a core. The cathode includes an active material portion in which a cathode active material is laminated on one or both sides of a cathode current collector, and a cathode non-coated portion in which the cathode active material is not laminated. The cathode further includes a protective tape covering at least a part of the cathode non-coated portion adjacent to the core. The protective tape has a cross-sectional area of 0.3 mm2 to 0.47 mm2 in a longitudinal direction of the cathode. Also provided is a secondary battery including such an electrode assembly.
Resumen de: US20260211044A1
A battery state prediction method and a battery system providing the same, the system including: a battery including a plurality of battery cells; and a battery management system (BMS) configured to compute a first state of charge change amount, compute a second state of charge change amount and, predict a state of health (SOH) of the battery based on the first state of charge change amount and the second state of charge change amount.
Resumen de: US20260213294A1
0000 It is possible to effectively suppress an increase in sodium concentration when lithium is circulated in a liquid in a series of steps. A method for recovering metals from battery powder of lithium ion battery waste includes: an acid leaching step of leaching metals including lithium, sodium and a metal to be separated in the battery powder into an acidic leaching solution to obtain a metal-containing solution containing the metals; and a metal separation step of separating the metal to be separated, from the metal-containing solution, wherein the lithium in the lithium-containing solution obtained after the metal separation step is returned to the acid leaching step and/or the metal separation step to circulate the lithium within a series of steps including the acid leaching step and the metal separation step, and wherein the method further includes, after the metal separation step, a liquid removing step of removing part of the lithium-containing solution containing sodium.
Resumen de: US20260213305A1
A fibrous structure includes a plurality of fibers consisting substantially of polyimide resin. A ratio of a mass of the plurality of fibers to a mass of the fibrous structure is 70 mass % or more. A thickness of the fibrous structure is 1 mm or more. A basis weight of the fibrous structure is 40 g/m2 or more and 150 g/m2 or less. A length of each of the plurality of fibers may be 1.0 mm or more and 10.0 mm or less. A width of each of the plurality of fibers may be 1 μm or more and 100 μm or less. A thermal conductivity of the fibrous structure measured in accordance with JIS L 1927 may be 0.020 W/m·K or more and 0.040 W/m·K or less.
Resumen de: US20260213161A1
The present disclosure relates to a carbon coated Silicon-Graphite composite anode material. The present disclosure also relates to a method of preparing a carbon coated Silicon-Graphite composite anode material. The present disclosure also provides a Li-ion coin cell. The carbon coating of Si-Graphite composite binds the Si nano particles on graphite matrix during Lithiation/delithiation reactions, enhancing the electrochemical cycling stability of Si-Graphite anode material, which accomplish the essential criteria of Li-ion battery anode.
Resumen de: US20260209068A1
Doped manganese-rich cathode active materials, and methods of manufacture, are described. The doped manganese-rich cathode active materials enable energy storage devices with improved performances, including but not limited to improved cycle life and capacity retention.
Resumen de: WO2026153200A1
The present application discloses a positive electrode material, a secondary battery, and an electronic device. The positive electrode material is rod-shaped grains having an olivine structure; the average length of the positive electrode material is I nm, wherein 150≤I≤1000; the average cross-sectional diameter of the positive electrode material is D nm, wherein 50≤D≤300; the aspect ratio of each single grain of the positive electrode material is P, and based on the total number of grains of the positive electrode material, the proportion of grains having an aspect ratio of 1.5≤P≤5 is A%, wherein 50≤A≤100. The positive electrode material provided in the present application is used for secondary batteries, can increase the lithium-ion diffusion coefficient, and has excellent high-rate discharge performance and low-temperature performance.
Resumen de: WO2026152934A1
Provided in the present application is a button battery. The button battery comprises a casing and a laminated cell, wherein the casing comprises a bottom casing, a terminal post and a top cover. The top cover is hermetically connected to the bottom casing. The terminal post is connected to the top cover. The bottom casing and the terminal post lead out different polarities. The laminated cell is arranged in the casing. In the stacking direction of the laminated cell, the laminated cell comprises a first single-sided electrode sheet and a second single-sided electrode sheet, which are located on the outermost sides. The first single-sided electrode sheet and the second single-sided electrode sheet have opposite polarities. The first single-sided electrode sheet comprises a first current collector and a first active material layer. In the stacking direction of the laminated cell, the surface of the first current collector facing the terminal post is directly electrically connected to the terminal post. The first active material layer is arranged on the surface of the first current collector facing away from the electrode post. The second single-sided electrode sheet comprises a second current collector and a second active material layer. The surface of the second current collector facing away from the terminal post is directly electrically connected to the bottom casing. The second active material layer is arranged on the surface of the second current collector facing the term
Resumen de: US20260208297A1
A laser welding method for joining stacked metal foils in which a plurality of copper-based foils are stacked and a tab plate formed of a copper-based material is provided. The laser welding method includes placing one end of the stacked metal foils on the tab plate; and irradiating the one end of the stacked metal foils and the tab plate with a blue laser beam by reciprocating the blue laser beam a plurality of times along a welding line on the tab plate along the one end of the stacked metal foils. The stacked metal foils and the tab plate irradiated with the blue laser beam have a joint portion in which a portion between a surface of the tab plate irradiated with the blue laser beam and the one end of the stacked metal foils is obliquely joined to the surface of the tab plate.
Resumen de: US20260213738A1
A battery management system and an electric device. The battery management system comprises a first circuit and a protection circuit, wherein the first circuit is connected to the protection circuit, and the protection circuit is used for reducing the amplitude of an interference signal entering the first circuit. The electric device comprises a battery and the battery management system.
Resumen de: US20260213160A1
A negative electrode includes a current collector and an active material layer, wherein the active material layer comprises carbon material particles and at least one metal fluoride particles selected from the group consisting of AgF, LiF, ZnF2, AlF3, CaF2, CoF3, CuF2, NiF2, and CoF2, and a lithium-ion secondary battery comprising the same.
Resumen de: US20260209071A1
0000 The present invention relates to a powderous material of hydroxide or oxyhydroxide of one or more metal elements for preparing positive electrode active material for batteries, wherein the one or more metal elements include at least one of Ni, Co and Mn, wherein the powderous material comprises particles having a core and a shell surrounding the core, wherein the core has a total area (Ac) and the shell has a total area (As) on a cross-section plane of the particle, wherein the shell has a void area percentage of at least 20% and at most 99% based on the total area of the shell (As), as determined based on cross-section SEM image analysis; and wherein the powderous material has a BET specific surface area of at least 7.0 m2/g.
Resumen de: US20260213269A1
0000 Provided are a polycyclic compound and a method for preparing the same, use, an electrolyte, and a battery. The polycyclic compound includes a compound represented by Formula I and a chlorine-containing organic compound. Based on a mass of the polycyclic compound, a content of the compound represented by the Formula I is greater than or equal to 99 wt %, and a total content of the chlorine-containing organic compound is less than or equal to 300 ppm. In the Formula I, R<1 >and R<2 >are each independently selected from any one of H, F, alkyl, or fluoroalkyl.
0000
Resumen de: WO2026153135A1
A thermal management control method and apparatus for a vehicle. The method comprises: acquiring current thermal management parameters of a target vehicle, wherein the current thermal management parameters comprise the current battery body temperature, the current battery water intake temperature, the current engine coolant temperature, the current ambient temperature, the current charging mode and the current passenger compartment air conditioner on-off state (S201); acquiring current weight coefficients corresponding to the current thermal management parameters, and on the basis of the current thermal management parameters and the current weight coefficients, determining the current cooling mode of a power battery (102) and a passenger compartment of the target vehicle (S202); and on the basis of the current cooling mode, performing cooling on the power battery (102) and/or the passenger compartment of the target vehicle (S203). By means of the present application, a corresponding cooling mode can be determined on the basis of current thermal management parameters of a target vehicle, so as to perform cooling to reduce the temperature of an engine coolant.
Resumen de: AU2025297460A1
A battery case, a battery pack and a vehicle. The battery case comprises a cold plate (60), a battery frame (10), and a cold plate sealant (70), wherein the battery frame (10) is located on one side of the cold plate (60) and is arranged around the periphery of the cold plate (60). At least one of the cold plate (60) and the battery frame (10) is provided with a sealing groove (1121). Sealing grooves (1121) are formed on the sides of the cold plate (60) and the battery frame (10) that are close to each other. The cold plate sealant (70) is located in the sealing groove (1121). In the direction perpendicular to the extension direction of the sealing groove (1121), the sealing groove (1121) has a first groove edge (1122) and a second groove edge (1123) which are arranged opposite each other. The first groove edge (1122) and the second groove edge (1123) are both located on one side of the groove bottom of the sealing groove (1121).
Resumen de: US20260213337A1
A venting device according to the present disclosure includes an inlet, an outlet, and a fluid flow path from the inlet to the outlet, and the fluid flow path is configured to be bent to block movement of flame.
Resumen de: US20260213266A1
0000 A battery includes a cathode comprising a disordered rocksalt structure and an electrolyte. The electrolyte includes a solvating solvent and a lithium salt that is soluble in the solvating solvent. The electrolyte includes a diluent that is miscible with the solvating solvent. The lithium salt is at least 5 times more soluble in the solvating solvent than in the diluent, and the solvating solvent and diluent are present in the battery at a diluent ratio/solvating solvent ratio of 0.1 to less than 3.0.
Resumen de: US20260213203A1
0000 The present disclosure relates to a battery. The battery according to one embodiment of the present disclosure includes: a cathode; an anode spaced apart from the cathode; and a separator disposed between the cathode and the anode. The anode includes: a current-collecting layer including a metal material; an electrode layer which is spaced apart from the current-collecting layer and which includes a plurality of pores; and a buffer layer which is disposed between the current-collecting layer and the electrode layer and which includes a binder mixed with conductive carbon. The binder can include a compound having an elastic modulus.
Resumen de: AU2024406349A1
An energy storage container (100) and an energy storage system (1000). The energy storage container (100) comprises a housing (10), wherein a battery compartment (20), an electrical compartment (30), and a liquid cooling unit (40) are arranged in the housing (10); and the electrical compartment (30) and the liquid cooling unit (40) are arranged on the same end side of the battery compartment (20) in a first direction (O). Such arrangement can effectively improve the space utilization ratio of the energy storage container (100); and additionally, a worker can inspect the electrical compartment (30) and the liquid cooling unit (40) on the same end side of the energy storage container (100), thereby effectively improving the convenience of on-site maintenance.
Resumen de: US20260213155A1
0000 A negative electrode sheet includes a negative electrode current collector and a negative electrode material layer. Along a length direction of the unfolded negative electrode sheet, the negative electrode sheet includes a blank foil region and a single-sided negative electrode material layer region connected to the blank foil region. Based on a length of the negative electrode sheet, a length proportion of the blank foil region is A, and a length proportion of the single-sided negative electrode material layer region is B, where 1/60≤A≤1/11, and 1/20≤B≤1/5. Grooves are provided on the negative electrode material layer in the single-sided negative electrode material layer region, the grooves extend in a width direction of the unfolded negative electrode sheet and are spaced apart along the length direction of the unfolded negative electrode sheet.
Resumen de: WO2026153387A1
The present application relates to the technical field of batteries, and discloses a battery cell and a battery pack. The battery cell comprises a casing, an electrode assembly, a cover plate, and an explosion-proof valve. In the embodiments of the present application, the reasonable area S of the explosion-proof valve is obtained by measuring the maximum sizes L, T, and H of the casing in three directions, the thicknesses I, M, and J of a first wall, a second wall, and a third wall of the casing, and the maximum size a of the cover plate in a third direction; and the area S of the explosion-proof valve can be calculated without using complex parameters such as areal density, capacity per gram, and active substance mass, thereby avoiding errors caused by complex measurements and calculations, and simplifying the calculation method. By reasonably designing the size of the explosion-proof valve, it can be ensured that the explosion-proof valve can be opened normally for gas release when thermal runaway occurs to the battery cell, thereby improving the safety and reliability of the battery cell.
Resumen de: US20260213373A1
0000 A battery cell, a battery, and an electric apparatus are disclosed. The battery cell includes: an electrode assembly including a positive electrode plate and a negative electrode plate, where the positive electrode plate includes a positive electrode current collector and a positive electrode active material disposed on the positive electrode current collector, the positive electrode active material including an active material capable of reversibly deintercalating and intercalating sodium ions, and the negative electrode plate includes a negative electrode current collector, the negative electrode current collector including a metal substrate; where a constituent material of the metal substrate includes element aluminum, and a mass percentage of the element aluminum is greater than a mass percentage of each of other elements.
Resumen de: US20260213158A1
A composite material for electrodes and an electricity storage device having a large support amount of an organic active material, and a method of manufacturing a composite material for electrodes capable of increasing support amount of organic active material. The composite material for electrodes has a porous carbon material and an organic active material supported within pores of porous carbon material. The organic active material is included in 28 wt % or more relative to total weight of porous carbon and organic active material. A porous carbon and an organic active material are maintained for a predetermined time in supercritical carbon dioxide between 70° C. to 170° C. and 20 MPa to 30 MPa, or between 90° C. to 170° C. and 13 MPa to 20 MPa impregnate organic active material within pores of porous carbon material, thereby manufacturing a composite material for electrodes having organic active material supported within pores of porous carbon material.
Resumen de: US20260213293A1
A method for repairing a cell packet comprises the steps of: opening a defective storage cell, removing a jelly roll from a cell container of the defective storage cell, inserting a new storage cell into the cell container and electrically incorporating the new storage cell into the cell packet.
Resumen de: US20260213284A1
The present disclosure relates to a battery system and method for controlling connection between battery packs using the same. The battery system includes a battery device including a plurality of battery packs; a first and a second terminals connected to a first end and a second end of the battery device; and a battery management system (BMS) configured to derive a plurality of pack voltages for the plurality of battery packs based on a plurality of voltage measurement signals received from the plurality of battery packs, determine voltages at the first end and the second end of the battery device as a first voltage or a second voltage depending on which of the first and the second terminals a driving device is connected to, and determine whether to connect the plurality of battery packs in parallel or series based on the voltages at both ends of the battery device.
Resumen de: US20260213264A1
An electrolyte for a rechargeable lithium battery according to embodiments of the present disclosure includes: an additive including a sulfonate compound represented by a specific formula; an organic solvent; and a lithium salt. A rechargeable lithium battery including the electrolyte for a rechargeable lithium battery may have improved high-temperature characteristics and fast-charging performance.
Resumen de: WO2026152533A1
An electrode sheet slitting system and a battery production device. The electrode sheet slitting system (101) comprises: a first cutting mechanism (110), configured to cut a material strip to form an electrode sheet (30) and convey the electrode sheet (30), the electrode sheet (30) comprising tabs located on two sides; a second cutting mechanism (111), configured to receive the electrode sheet (30) conveyed by the first cutting mechanism (110) and slit the electrode sheet (30) into a first electrode sheet (31) and a second electrode sheet (32), each of the first electrode sheet (31) and the second electrode sheet (32) comprising a tab located on one side; and a deviation correction mechanism (112), configured to acquire images of the first electrode sheet (31) and the second electrode sheet (32), and on the basis of the images, perform deviation correction on the position at which the material strip is cut by the first cutting mechanism (110) and/or the position at which the electrode sheet (30) is slit by the second cutting mechanism (111), such that the first electrode sheet (31) and the second electrode sheet (32) formed after deviation correction have consistent width dimensions. The electrode sheet slitting system has a simplified layout while maintaining high precision in electrode sheet slitting.
Resumen de: WO2026152812A1
The embodiments of the present application relate to the technical field of computers. Provided are a battery abnormality detection method and apparatus, and an electronic device and a storage medium. The method comprises: by means of wireless communication, sending cell data of each cell in a battery module to a first storage node for storage; determining abnormal cell data from the cell data stored in the first storage node, and by means of wireless communication, sending the abnormal cell data to a second storage node for storage; and analyzing the abnormal cell data stored in the second storage node, so as to determine an abnormality cause of a cell having the abnormal cell data in a battery stack. By means of wireless communication, battery data is transmitted between and stored in structures, such that a wire harness is not required for connecting the structures during the design of a battery, a harness constraint caused when the structures of the battery are relatively complex is avoided, the harness costs can be reduced, and more battery space occupied by the wire harness can be freed up to place more cells, thereby improving the discharge capability of the battery itself.
Resumen de: WO2026153276A1
A battery apparatus (1) and an electric device, which solve the problem that electric arcing easily occurs between an upper case and live parts of battery cells (12). The battery apparatus (1) comprises: a battery cell assembly (18) comprising a plurality of battery cells (12) having electrode terminals; a case (11), comprising a first part (112) and a second part (111), wherein the second part (111) covers the first part (112) to form an accommodating cavity for accommodating the battery cell assembly (18), a first surface (1111) of the second part (111) is provided with at least one of protrusion portions (1112) and opening portions (1113), and the first surface (1111) is the surface of the second part (111) facing the electrode terminals; and an insulating member (16) located between the first surface (1111) of the second part (111) and the battery cell assembly (18). The insulating member (16) comprises a first insulating member (161) and second insulating members (162); the first insulating member (161) is arranged opposite to the first surface (1111) of the second part (111) and is provided with hollow portions (1611) exposing at least one of the protrusion portions (1112) and the opening portions (1113); and the second insulating members (162) are arranged opposite to at least one of the protrusion portions (1112) and the parts of the first surface (1111) exposed through the hollow portions (1611) and are provided with first through holes (1623) in communication with t
Resumen de: WO2026153440A1
The present application belongs to the technical field of batteries. Disclosed is a battery cell. The battery cell comprises a cover plate assembly. The cover plate assembly comprises a cover plate body, a first terminal post and a second terminal post, wherein the cover plate body has an assembly hole; the first terminal post comprises a penetrating portion and a first main body portion, the first main body portion is arranged on one side of the cover plate body in a thickness direction, and the penetrating portion is connected to the first main body portion and is at least partially arranged in the assembly hole in a protruding manner; the second terminal post comprises a connecting portion and a second main body portion, the second main body portion is arranged on the side of the cover plate body facing away from the first main body portion, the connecting portion is connected to the first main body portion, is at least partially arranged in the assembly hole in a protruding manner and abuts against the first main body portion, the connecting portion is provided with a through hole, and the penetrating portion passes through the through hole; the penetrating portion and the connecting portion are welded to each other and form a first welding portion; and the first main body portion and the connecting portion are welded to each other and form a second welding portion. By means of double welding structures, the connection stability is increased, and the sealing performance o
Resumen de: US20260213377A1
A first fuse device (40A) includes a narrow portion (414A) that functions as a fuse, and a first wide portion (412A) electrically connected to the narrow portion (414A) and having a cross-sectional area greater than the cross-sectional area of the narrow portion (414A). A first curve (404A) is provided from the outer edge of the narrow portion (414A) to the outer edge of the first wide portion (412A).
Resumen de: US20260213362A1
0000 A battery pack includes one or more secondary battery cells, a battery holder that holds the one or more secondary battery cells, a circuit board electrically connected to the secondary battery cell, an outer case that stores the battery holder and the circuit board, and an electronic component that is mounted on the circuit board, and is visible or operable from outside of the outer case. The battery holder includes a battery storage unit that stores the one or more secondary battery cells, an attachment unit that enables attachment of at least one edge of the circuit board, and a linking unit that links the electronic component with the outer case in a state where the circuit board is attached to the attachment unit.
Resumen de: US20260213259A1
Provided herein are high performance compounds and compositions for use as electrolyte materials. Electrolyte composites materials and batteries incorporating the compounds and compositions are also disclosed. Methods of manufacturing the compounds, compositions, electrolytes and batteries are also disclosed.
Resumen de: US20260210882A1
0000 Aspects of the disclosure are directed to inspecting an electrode current collector and manufacturing an electrode with increased accuracy in evaluation of mechanical properties of the electrode current collector through non-destructive inspection. More specifically, through x-ray diffraction (XRD) analysis in selecting an electrode current collector, aspects of the disclosure allow for monitoring and/or screening mechanical properties of an electrode current collector with higher accuracy. Further, if evaluating the mechanical properties of an electrode current collector are included in the manufacturing process for the electrode, degradation in strength of the electrode current collector being heat-treated can be predicted and/or prevented, thereby resolving defects which may occur during electrode manufacturing.
Resumen de: WO2026152554A1
A positioning fixture (100) and a tab welding apparatus, wherein the positioning fixture (100) is configured to weld tabs (200) and an electrode sheet (300). The positioning fixture (100) comprises a base (1) and a pressing plate structure (2), wherein the base (1) has a positioning surface located on one side in a first direction (X), and tab positioning grooves (12) and an electrode sheet positioning groove (13), which are in communication with each other, are formed on the positioning surface, such that the tabs (200) and the electrode sheet (300) positioned therein partially overlap to form points to be welded; and the pressing plate structure (2) is detachably mounted on the base (1), tab pressing portions (2112) and an electrode sheet pressing portion (2122) are formed on the pressing plate structure (2), and the tab pressing portions (2112) and the electrode sheet pressing portion (2122) are respectively arranged corresponding to the tab positioning grooves (12) and the electrode sheet positioning groove (13).
Resumen de: US20260209076A1
0000 A method for manufacturing a positive electrode active material precursor according to the present invention includes: a reaction vessel; at least one feed pipe configured to feed a reaction solution into the reaction vessel; and a stirring means disposed at a central portion inside the reaction vessel to stir the reaction solution fed through the feed pipe. The stirring means comprises a shaft and two stages of impellers, and the impellers are inclined at an angle of 5° to 90° with respect to a horizontal direction.
Resumen de: US20260213368A1
0000 A cylindrical battery includes a housing, an electrode assembly in the housing, and a current collector plate. The electrode assembly is formed by stacking and winding a first electrode plate, a separator, and a second electrode plate. Along a winding direction of the electrode assembly, the first electrode plate includes a first part and a second part. The first part includes a winding start section of the first electrode plate. Along an axial direction of the cylindrical battery, an end face of the first part extends beyond an end face of the second part. The electrode assembly includes a main portion and a flattened portion arranged along the axial direction. The flattened portion is a portion by which the first part extends beyond the second part. The electrode assembly and the current collector plate are along the axial direction. The current collector plate is connected to the flattened portion.
Resumen de: US20260209043A1
0000 An iron phosphate material is composed of secondary particles formed by agglomeration of primary particles, an equivalent particle size of the primary particles is 20 nm-600 nm, and a D<50 >of the secondary particles is 5 μm-20 μm. A hardness index of the iron phosphate material is less than or equal to 5; the hardness index is equal to 0000 L ¯ V p , 0000 wherein L is an average aspect ratio of the primary particles, which refers to a ratio of an average length of the longest axis to an average length of the shortest axis of the primary particles; and is a specific pore volume of the iron phosphate material expressed in cm<3>/g.
Resumen de: US20260208997A1
The present disclosure relates to an electrode assembly manufacturing apparatus and a method for manufacturing an electrode assembly. Such an electrode assembly manufacturing apparatus and method for manufacturing an electrode assembly enable the electrode assembly to be manufactured using electrode plates that are not damaged in shape, are in a predetermined reference alignment state, and are free from foreign materials, and using separators that are not damaged in shape.
Resumen de: US20260213253A1
0000 A lithium secondary battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte having lithium ion conductivity. At the negative electrode, lithium metal deposits during charging, and the lithium metal dissolves during discharging. The positive electrode includes a first positive electrode active material having a compressive strength of 400 MPa or more. The thickness X (μm) of lithium metal deposited on the negative electrode during charging and the distance Y (μm) between the positive electrode and the negative electrode during discharging satisfy the relationship of 0.5X+15≤Y≤4X+20.
Resumen de: US20260213276A1
0000 In a cylindrical battery as an example of an embodiment, a negative electrode comprises: a non-opposing portion that is wound 0.75 times or more on a winding-start side of an electrode assembly; and, at least in the non-opposing portion, a first maximal value and a second maximal portion in which the value of radius of curvature×radius is a local maximum. The first maximal portion is positioned in a range in which an angle from a positive electrode start end toward a winding-end side with respect to a winding center of the electrode assembly is between 180° and 280° inclusive. The second maximal portion is positioned in a range in which an angle from the first maximal portion toward the winding-end side is 80°±5°.
Resumen de: US20260209563A1
0000 Provided is a new technique that can ensure high-speed formability during electrode production by powder forming while also causing an electrochemical device to display excellent rate characteristics. An adhesive coating liquid for an electrochemical device contains an adhesive and water. The adhesive includes a particulate polymer X having a degree of swelling in electrolyte solution, by mass, of not less than ×1.0 and not more than ×3.0. The adhesive coating liquid for an electrochemical device has a tack strength of 0.50 N or more as measured using a tackiness tester.
Resumen de: WO2026152800A1
A battery cell, a battery device, and an electric device. The battery cell comprises: a housing component comprising a first housing wall, the first housing wall being provided with a first through hole; an electrode component, the electrode component being arranged in the housing component; and a pole component comprising an adapter, a pole body, and an insulating sealing structure, wherein the adapter is mounted in the first through hole and is provided with a second through hole, the second through hole comprises a first hole section, and in a direction from inside to outside of the second through hole, a hole opening size formed by the first hole section gradually decreases or increases, the pole body is arranged in the second through hole and is insulated from and in sealing fit with the first hole section via at least part of the insulating sealing structure, and the pole body is electrically connected to the electrode component.
Resumen de: WO2026153326A1
Provided in the present application are a positive electrode sheet, a battery and a preparation method therefor, a battery pack, and an electric device. The positive electrode sheet comprises a positive electrode active material. A CEI layer is present on the surface of the positive electrode active material, wherein the atomic percentage of fluorine in the CEI layer is less than or equal to 12 at.%, and the atomic percentage of oxygen in the CEI layer is less than or equal to 23at.%. The present application can reduce the resistivity of the positive electrode sheet and improve the discharge energy of the battery.
Resumen de: WO2026152776A1
Embodiments of the present application provide a battery cell detection method and system. The method comprises: before winding an anode sheet, a cathode sheet, and a separator, acquiring a plurality of first film widths corresponding to a first main body portion of an anode film layer, and a plurality of second film widths corresponding to a second main body portion of a cathode film layer; acquiring a first electrode sheet misalignment amount obtained by performing X-ray inspection on a battery cell upon the completion of winding, wherein the first electrode sheet misalignment amount is the dimension by which, on the side of the battery cell away from an anode tab, the first main body portion of the anode sheet adjacent to each turn of the cathode sheet extends beyond the second main body portion of the cathode sheet; and on the basis of the plurality of first film widths, the plurality of second film widths, and the first electrode sheet misalignment amount, determining a second electrode sheet misalignment amount, wherein the second electrode sheet misalignment amount is the dimension by which, on the side of the battery cell close to the anode tab, the first main body portion of the anode sheet adjacent to each turn of the cathode sheet extends beyond the second main body portion of the cathode sheet.
Resumen de: AU2024419294A1
In some implementations, a battery module (104) may include a battery stack with a plurality of battery cells (106), a leaping bus bar (204) electrically connecting multiple non-adjacent battery cells (106) of the plurality of battery cells (106), and a linear bus bar (206) electrically connecting multiple adjacent battery cells (106) of the plurality of battery cells (106). The multiple adjacent battery cells (106) may be disposed between the multiple non-adjacent battery cells (106) electrically connected by the leaping bus bar (204).
Resumen de: WO2026155566A1
An anodeless all-solid-state battery (ASSB) and a method of making the anodeless ASSB are provided. The anodeless ASSB includes: a positive electrode, a negative electrode current collector, a solid-state electrolyte, and an interlayer including at least one additive, a carbonaceous material, and a binder. The additive may include a metal compound, nanoparticles, or a combination thereof, the metal compound may be represented by formula MxAy and the nanoparticles may include a metal represented by M of formula MxAy, x and y are integers independently selected from 1 to 6, M may be silver, zinc, indium, tin, bismuth, magnesium, aluminum, or a combination thereof, and A may be nitrate, sulfate, iodide, chloride, fluoride, or a combination thereof. The interlayer may be substantially free of organic amine compounds. A molar ratio of the metal compound to the nanoparticles may be about 100:1 to about 3:1.
Resumen de: WO2026155481A1
Provided is a battery unit comprising: a U-shaped barrier sheet including a first portion and second and third portions spaced apart from each other with the first portion therebetween; battery cells which are accommodated in the barrier sheet and are arranged in a first direction; and a gap filler pad between the first portion and the battery cells.
Resumen de: WO2026152278A1
A battery pack includes a housing, a plurality of battery cells, a terminal assembly having a positive terminal and a negative terminal, and a bus bar electrically connecting the plurality of battery cells to the terminal assembly. A resistance value of the bus bar at 25℃ is less than or equal to 0.18 mΩ, and a resistance drift rate of the bus bar is less than or equal to 0.5 μΩ/℃. A distance between a temperature detector to sense the temperature of the bus bar and the bus bar is less than or equal to 5 mm. A controller is coupled to the temperature detector and configured to determine a resistance of the bus bar based on the temperature of the bus bar, and calculate a current of the battery pack based on the voltage and the resistance of the bus bar.
Resumen de: WO2026155989A1
A battery system may include a plurality of high-voltage (HV) battery packs, each HV battery pack including a plurality of battery cells enclosed within a housing. A battery management system (BMS) can be electrically connected to each of the HV battery packs configured to control the plurality of HV battery packs. The BMS can include a controller configured to identify an isolation breakdown based at least on whether a low resistance connection exists between a portion of a series connection of the plurality of battery cells and a chassis ground of the electric vehicle; and determine an electrical location of a fault in the plurality of HV battery packs based at least on a battery pack positive voltage and a battery pack negative voltage.
Resumen de: WO2026153613A1
A container (100) for transporting cylindrical battery cells (10) is proposed. The container (100) comprises a container base (11) having a sealing groove (19), four side walls (12), a plurality of battery cell chambers (14), a deformation zone (13) surrounding the battery chambers (15), and at least one seal (17) formed on the end face of at least one side wall (12). The seal (17) is configured to be received in the circumferential sealing groove (19) of the container base (11) of another container (100).
Resumen de: DE102026102409A1
Die vorliegende Erfindung betrifft eine Heißgasabscheidestreckenprüfvorrichtung (10), umfassend: eine Gasleitstrecke (12) mit einem Einlass (13) und einem Auslass (15), einen Gaskompressor (14) zur Erzeugung eines Gasflusses in der Gasleitstrecke (12); eine Anschlusseinrichtung (16) zum Anschluss einer Heißgasabscheidestrecke (30) an die Gasleitstrecke (12), wobei die Anschlusseinrichtung (16) einen Einlassanschluss (16a) und einen Auslassanschluss (16b) aufweist; eine schaltbare Bypassleitung (18), welche dazu eingerichtet ist, den Gasfluss zwischen der Anschlusseinrichtung (16) und dem Auslass (15) zu schalten; und eine Messeinrichtung (20), die dazu eingerichtet ist, einen am Einlassanschluss (16a) und/oder am Auslassanschluss (16b) vorliegenden Gasparameter zu messen.
Resumen de: US20260213381A1
A power storage device includes a battery module in which a laminated structure where a cathode layer and an anode layer face each other with a separator interposed therebetween, immersed in an electrolytic solution, is sealed in laminated packaging, with terminals electrically connected to each of the cathode layer and the anode layer protrude externally, a battery pack that accommodates the same, a cooling channel that circulates a non-conductive coolant in the periphery of the battery module for cooling, and a coolant discharging unit that, in response to leakage of electrolytic solution from the battery module detected by a leakage sensor detecting leakage, causes coolant to be discharged from the coolant channel to the periphery of the battery module, the power storage device configured such that the coolant mixes with the electrolytic solution leaked from the battery module in the battery pack, reducing conductivity of the electrolytic solution.
Resumen de: WO2026152834A1
The present application discloses a battery cell, a battery apparatus, and an electric device. The battery cell comprises a negative electrode film layer, the negative electrode film layer comprises a binder, and the binder comprises a lithium-containing high molecular polymer; an electrolyte comprises a lithium salt; and the lithium salt comprises a lithium fluorosulfonimide salt. In the embodiments of the present application, the charging performance of the battery cell can be improved by means of a binder comprising a lithium-containing high molecular polymer; and the high-temperature charging performance of the battery cell can be improved by introducing a lithium fluorosulfonimide salt into the electrolyte. Thus, in battery cells having high energy density, the effects of wide temperature range, long service life, and fast charging can be achieved.
Resumen de: WO2026153320A1
A heat exchange plate (1), a battery assembly, and a vehicle. The heat exchange plate (1) comprises a main plate body (11). Along a first direction (X), the main plate body (11) is divided into a first portion (111) and a second portion (112) connected to each other. A plurality of flow channels (114) are provided in the first portion (111), the flow channels (114) being used for circulating a coolant. The first portion (111) is configured to contact a first part of a battery cell (3), the first part being a part close to a terminal of the battery cell (3). The second portion (112) is configured to contact a second part of the battery cell (3), the second part being a part away from the terminal of the battery cell (3). Since the coolant does not flow into the second portion (112) of the heat exchange plate (1), the heat exchange plate (1) has a lower demand for coolant, which is conducive to reducing the self-weight of a battery pack using the heat exchange plate (1).
Resumen de: US20260211056A1
0000 Lithium plating in a lithium-ion battery is measured as a decrease in resonance frequency amplitude observed during the charging process of the lithium-ion battery. An ultrasonic transmitter is attached to one side of the lithium-ion battery and an ultrasonic receiver is attached to an opposite side of the lithium-ion battery. The lithium-ion battery is charged and, during the charging thereof, a resonance frequency ultrasonic signal is transmitted through the battery using the ultrasonic transmitter, and the signal is received by the ultrasonic receiver. The amplitude of the received resonance frequency ultrasonic signal is measured and compared against a known baseline amplitude associated with the lithium-ion battery to calculate a percentage decrease from the known baseline amplitude. The percentage decrease is output to the user. The percentage decrease corresponds to the degree of lithium plating in the lithium-ion battery and represents a quantifiable measure of the degree of lithium plating.
Resumen de: US20260213175A1
0000 The negative electrode active material of the present disclosure includes Li, V, M, and O, wherein M is at least one selected from the group consisting of tetravalent metal elements, excluding V, and tetravalent metalloid elements, and wherein the electronic conductivity is greater than or equal to 7.0×10<−13 >S/cm.
Resumen de: AU2024394269A1
This disclosure relates to flight control of electric aircraft and other vehicles. A computer-implemented method for estimating available range of an aircraft in flight is disclosed, comprising: receiving electrical information of one or more batteries measured using a first sensor; estimating aircraft-level energy based on electrical information of the one or more batteries; receiving one or more of an altitude of the aircraft or a current airspeed of the aircraft measured using a second sensor; estimating a steady-state force based on the one or more of the altitude of the aircraft or the current airspeed of the aircraft; estimating one or more of a vertical landing range or a horizontal landing range based on the one or more of the estimated aircraft-level energy or the estimated steady-state force; and displaying the one or more of the estimated vertical landing range or the estimated horizontal landing range on a display.
Resumen de: US20260209067A1
A composition according to an aspect of the present disclosure contains water, lithium hydroxide, at least one organic substance that has no carboxyl group and that dissolves in water, and at least one active material. The percentage of the lithium hydroxide relative to the water is greater than or equal to 10% as a percentage by mass.
Resumen de: US20260209065A1
0000 A composition according to an aspect of the present disclosure contains a monohydric alcohol, at least one organic substance having a hydroxy group and having no carboxyl group, and at least one active material. The organic substance dissolves in the monohydric alcohol.
Resumen de: US20260209066A1
The lithium vanadium oxide of the present disclosure is a lithium vanadium oxide including Li, V, M, and O, wherein M is at least one selected from tetravalent metal elements excluding V and tetravalent metalloid elements, and the lithium vanadium oxide includes both a β-phase and a γ-phase as crystal phases.
Resumen de: US20260213374A1
The battery pack includes a circuit board having a rectangular shape with a pair of edges and a pair of side faces intersecting the pair of edges and including a plurality of electrical connection regions for respectively connecting to the plurality of lead plates, and a pair of guide walls, which is disposed on one face of the battery holder and forms a slot in which the circuit board is inserted by respectively guiding the pair of side faces of the circuit board. Each of the plurality of lead plates includes a bending piece that is to be bent and connected to each of the electrical connection regions of the circuit board. The bending piece is connected to each of the plurality of electrical connection regions in a state where the circuit board is inserted into the slot to electrically connect the plurality of lead plates to the circuit board.
Resumen de: US20260213281A1
0000 Provided are a winding device, a battery processing device and a battery production line, which belong to the technical field of battery manufacturing. The winding device includes a first combining mechanism, a winding mechanism, and a first detection apparatus. The first combining mechanism is configured to combine incoming materials including at least a first electrode plate, a first separator, and a second electrode plate into a first composite plate. The first detection apparatus includes a first image acquisition apparatus and a processor; the first image acquisition apparatus is disposed between the first combining mechanism and the winding mechanism an configured to obtain edge position images of at least one of the first electrode plate and the second electrode plate in the first composite plate; and the processor is configured to determine an edge distance based on the edge position images and judge whether the edge distance meets a threshold.
Resumen de: US20260213244A1
A sealing tool may include a first sealing block and a second sealing block facing each other. The first sealing block may include a first fixing part and a first replacement part coupleable to and detachable from the first fixing part. The second sealing block may include a second fixing part; and a second replacement part coupleable to and detachable from the second fixing part. At least one of the first replacement part or the second replacement part may be formed with a groove for an electrode lead to be seated in a position corresponding to the electrode lead.
Resumen de: WO2026152797A1
The present application belongs to the technical field of batteries, and provides a battery control circuit, a battery system, an electrical device, and a battery charging control method. The control circuit comprises: a first module connected to a battery, the battery comprising a first battery pack and a second battery pack, and the first battery pack and the second battery pack being separately connected to an external charging device; and a controller, configured to: acquire voltages of the first battery pack and the second battery pack during charging of the battery by the charging device; and in response to the voltage of the first battery pack and/or the voltage of the second battery pack being greater than a first threshold, control the first module such that the first battery pack and the second battery pack discharge to each other. The controller is further configured to: during the mutual discharge between the first battery pack and the second battery pack, control the charging device to charge at least one of the first battery pack and the second battery pack. The control circuit of the present application can improve the charging efficiency of a battery.
Resumen de: US20260213187A1
The ability of a polycrystalline cathode material to resist the generation of internal cracks during cycle is evaluated by anti-cracking strength. By providing a cathode material, which has an anti-cracking strength that satisfies a specific range, and a high-strength crystals and grain boundaries, so that the structural stability of the material can be improved, and the diffusion of the internal cracks to the interface can be effectively inhibited, thereby improving the cycle stability and lifetime of the material.
Resumen de: US20260209050A1
0000 The present invention relates to a silicon-carbon composite having a yolk-shell structure, a manufacturing method therefor, and a negative electrode active material comprising same. The silicon-carbon composite having a yolk-shell structure according to an embodiment of the present invention may be manufactured without an etching process using a strong acid and may have uniform voids formed therein by using a polymer layer having a uniform thickness as a sacrificial layer. Accordingly, the silicon-carbon composite, when used as a negative electrode active material, may accommodate the volume expansion of silicon and thus may suppress the phenomenon in which the outermost carbon thin film is peeled off. As a result, the degradation of battery performance and lifespan may be suppressed.
Resumen de: US20260208620A1
A battery management apparatus according to an embodiment of the present disclosure includes a profile obtaining unit configured to obtain a battery profile and a differential profile based on voltage and capacity of a battery; a control unit configured to generate a comparison full-cell profile and a comparison differential profile based on a preset reference positive electrode profile and a preset reference negative electrode profile, adjust the reference positive electrode profile and the reference negative electrode profile so that the comparison full-cell profile and the comparison differential profile correspond to the battery profile and the differential profile, respectively, and determine a positive electrode profile and a negative electrode profile of the battery based on an adjustment positive electrode profile and an adjustment negative electrode profile derived from adjustments to the reference positive electrode profile and the reference negative electrode profile.
Resumen de: US20260213177A1
A positive electrode material and a preparation method thereof, a positive electrode (10), a sodium battery, and an electric apparatus are provided. The positive electrode material includes a layered oxide represented by a chemical formula NaqNixMnyFezZnpMiOj, where 0.8≤q≤1, 0.1≤x≤0.3, 0.2≤y≤0.5, 0.2≤z≤0.35, 0.02≤p≤0.075, 0≤i≤0.1, 1.8≤j≤2, x+y+z+p+i≤1, and Mis an active and/or inert doping metal element. A preparation method of the positive electrode material includes a step of performing sintering treatment on a precursor of NaqNixMnyFezZnpMiOj. The positive electrode (10) includes the layered oxide represented by the chemical formula. The sodium battery includes the positive electrode (10). The electric apparatus includes the sodium battery.
Resumen de: US20260213215A1
0000 The disclosure discloses a negative-electrode-free secondary battery, modified graphite, a modified current collector, and a method for preparing same. The method for preparing the modified graphite includes performing hydrogen-argon mixed gas plasma modification treatment on graphite to prepare the modified graphite. The thickness of the graphite is 20 nm-2 μm, the diameter is 0.1-50 μm, and the degree of graphitization is 80% or more. The power of the hydrogen-argon mixed gas plasma modification treatment is 30-250 W, and the time is 2-25 min. The modification method of the disclosure can alleviate the defects and optimize the structure of the surface of the graphite, thereby constructing physical and chemical characteristics adapted to the negative-electrode-free secondary battery to significantly improve the long cycle life of the negative-electrode-free secondary battery.
Resumen de: US20260213289A1
A battery module system for an aerosol generation device includes a battery sensor device including a light sensor. The battery module system further includes a battery cell including one or more markings. The light sensor is configured to detect a change in a characteristic of the one or more markings indicative of a change in a physical size of at least a region of the battery cell.
Resumen de: US20260213345A1
0000 A composition for an electrochemical device functional layer contains a particulate polymer having a particle diameter distribution that satisfies specific aspects and having a hydroxyl group surface localization rate of 25% or more.
Resumen de: US20260213184A1
Disclosed is a positive electrode active material for a lithium secondary battery, a method for manufacturing the same, and a lithium secondary battery comprising the same. The positive electrode active material includes: a core comprising a lithium metal oxide; coating particles located on the core; and a diffusion coating layer located on the core, wherein the lithium metal oxide is in the form of a single particle, the diffusion coating layer is in the form of a film, and a ratio of a major axis to a minor axis of the coating particles is greater than 2.
Resumen de: WO2026152541A1
An electrode sheet conditioning device (100) and an electrode sheet processing apparatus. The electrode sheet conditioning device (100) comprises a conveying roller (10) and a flattening mechanism (20). The conveying roller (10) is configured to convey an electrode sheet material strip (200), the electrode sheet material strip (200) comprising a material strip body (50) and tabs (60). The flattening mechanism (20) comprises an air-blowing module (30), wherein an air-accommodating cavity (33) is formed in the air-blowing module (30); air intake holes (35) and air output holes (36) are formed in the air-blowing module (30); the air-accommodating cavity (33) enables the air intake holes (35) to be in communication with the air output holes (36); and the air-blowing module (30) is configured to blow an air flow onto the tabs (60) via the air output holes (36) in a direction close to the conveying roller (10).
Resumen de: US20260213322A1
A battery and a power consuming apparatus. The battery includes an accommodating box and a battery cell, where an accommodating cavity is provided in the accommodating box, the battery cell is disposed in the accommodating cavity, the accommodating box is provided with an avoidance region, the avoidance region protrudes in a direction away from the battery cell to form a boss, so that an accommodating groove is formed on a corresponding inner wall of the accommodating cavity, and a protrusion is formed on an outer surface of the battery cell, where at least part of the protrusion is located in the accommodating groove.
Resumen de: WO2026152611A1
The present invention provides an ionic liquid additive for a solid-state lithium metal battery electrolyte and a method for using the ionic liquid additive to prepare the solid-state lithium metal battery electrolyte. A bis(trifluoromethanesulfonyl)imide salt containing terphenyl and lithium carboxylate obtained by means of a Michael addition reaction is captured by open metal sites of a MOF material UiO-66-NH2, which can improve the structural stability of the material and provide more transport channels for lithium ions, thereby increasing the lithium ion transference number, and helping to improve the performance of a lithium metal battery, especially in terms of charging and discharging rates. An electrolyte material of the present invention has good stability with lithium metal, which helps to prevent electrolyte decomposition and avoid unstable phenomena on the surface of an electrode, such as lithium dendrite growth, so that the lithium metal battery can exhibit excellent electrochemical performance, comprising better cycling stability, high Coulombic efficiency and longer battery life.
Resumen de: WO2026152635A1
The present application relates to the technical field of secondary ion batteries, and in particular relates to a dry binder and a preparation method therefor, and an electrode sheet and a preparation method therefor. The preparation method for a dry binder comprises the following steps: mixing a graft polymer and a metal salt, and granulating same to obtain a dry binder, wherein the graft polymer comprises maleic-anhydride-grafted polypropylene. In the present application, maleic-anhydride-grafted polypropylene is used as a polymer matrix, and is blended with a metal salt to prepare a solvent-free dry binder by means of a mixing process; and the prepared dry binder exhibits a good adhesive strength and lithium-ion conductivity, a high use safety, as well as low raw material costs.
Resumen de: WO2026152710A1
The present application relates to the technical field of batteries, and provides a battery control circuit, a battery system, an electric device, and a battery charging control method. The battery control circuit comprises: a first module connected to a battery, wherein the first module comprises a switch circuit and a first energy storage circuit connected to the switch circuit, and the battery comprises two battery packs connected to each other; and a controller configured to: acquire voltages of the battery packs during charging, and in response to the voltage of at least one battery pack being greater than a first threshold, control, by means of the first module, the battery to switch from a charging state to a first state, wherein the first state comprises: performing, by means of the first module, mutual discharging of the two battery packs. The battery control circuit of the present application can improve the charging efficiency of the battery.
Resumen de: US20260213182A1
0000 A highly safe or highly reliable secondary battery having high charge and discharge capacity is provided. Alternatively, a positive electrode active material which inhibits a decrease in discharge capacity during charge and discharge cycles and a secondary battery using the positive electrode active material are provided. The secondary battery includes the positive electrode active material including cobalt, in which the powder volume resistivity of the positive electrode active material under a pressure of 64 MPa is higher than or equal to 5.0×10<3 >Ω·cm and lower than or equal to 1.0×10<12 >Ω·cm. The positive electrode active material includes magnesium, nickel, and aluminum in a surface portion. The surface portion is a region extending from a surface of the positive electrode active material to a depth of 50 nm or less. The positive electrode active material includes a region where magnesium and nickel are distributed closer to the surface of the positive electrode active material than aluminum is when EDX line analysis in the depth direction is performed.
Resumen de: US20260209075A1
0000 Generally, the present invention relates to metal hydroxides that can be used as precursors to cathode active materials for secondary batteries and methods of manufacture thereof. Particularly, however not exclusively, the present invention concerns methods for manufacturing an aqueous slurry comprising hydroxide or oxyhydroxide of at least one or more metal elements, methods for manufacturing powderous hydroxide or oxyhydroxide therefrom, and use of the aqueous slurry or the powderous hydroxide or oxyhydroxide for manufacturing a positive electrode active material for secondary batteries.
Resumen de: WO2026152669A1
A battery pack. The battery pack comprises a bottom plate, an upper cover, a BMS board, a first battery cell, a second battery cell, a first busbar, a second busbar, and third busbars. The upper cover is detachably connected to the bottom plate. An accommodating cavity is formed between the upper cover and the bottom plate. The first battery cell and the second battery cell are accommodated in the accommodating cavity. The BMS board is arranged on the upper cover. The BMS board is provided with a positive terminal and a negative terminal. The positive terminal is electrically connected to the second busbar. The negative terminal is electrically connected to the first busbar. The first busbar is electrically connected to the negative electrode of the first battery cell. The second busbar is electrically connected to the positive electrode of the second battery cell. The positive electrode of the first battery cell and the negative electrode of the second battery cell are electrically connected by means of the third busbars.
Resumen de: US20260213366A1
2024-08-12 Disclosed is an electrode assembly, a cylindrical battery, and a battery pack and a vehicle including the same. The electrode assembly includes a first electrode, a second electrode, and a separator interposed therebetween, which are wound around one axis to define a core and an outer circumference. At least one of the first electrode and the second electrode includes an uncoated portion extending in a winding direction along a long side end thereof. The uncoated portion includes a plurality of segments separated by cut grooves formed along the winding direction and independently bendable. The plurality of segments are bent toward the core to form a bending surface area at one end of the electrode assembly. At least some of the plurality of segments include a folded end portion.
Resumen de: US20260213365A1
0000 An electrochemical apparatus includes a housing, an electrode assembly, an electrode pole, and a first connector. A first segment of the first connector is connected a first tab of the electrode assembly, a second segment of the first connector is connected to the electrode pole, and when viewed along a first direction, the first segment and the second segment do not overlap. The housing includes a first sidewall and a second sidewall connected to each other. A shortest distance from a center of the electrode pole to an end face of the first connector along a second direction is L1, a distance from the center of the electrode pole to a bottom wall of the housing is L2, and a distance from the center of the electrode pole to the second sidewall is L3, satisfying L1≤L2 and L1≤L3.
Resumen de: US20260213183A1
The non-aqueous electrolyte secondary battery comprises: a positive electrode; a negative electrode; and a non-aqueous electrolyte. The positive electrode has: a positive electrode current collector; and a positive electrode mixture layer formed on the surface of the positive electrode current collector. The positive electrode mixture layer includes: a first positive electrode active material; and a second positive electrode active material. The particle size ratio R1/R2 of the average particle size R1 of the first positive electrode active material and the average particle size R2 of the second positive electrode active material is 3 to 9, the volume ratio V1/V2 of the volume V1 of the first positive electrode active material and the volume V2 of the second positive electrode active material is 3 to 9, and the density of the positive electrode mixture layer is 3.35 g/cm3 to 3.70 g/cm3.
Resumen de: WO2026152577A1
Disclosed in the present invention are a large-area continuous MOF membrane, and a preparation method therefor and the use thereof. The preparation method comprises the following steps: S1, dissolving zirconium tetrachloride and 1,3,5-tris(4-carboxyphenyl)benzene in a solvent, i.e., N,N-dimethylformamide, then adding formic acid and water thereto, sealing the resulting mixed solution, placing same in an oven, maintaining the temperature, then adding a sulfonation reagent thereto, performing refluxing for a period of time, then leaving same to stand, and then performing centrifugal washing with ultrapure water to obtain a homogeneous dispersion; S2, cleaning a substrate in ethanol and deionized water respectively for later use; S3, fixing the substrate on a blade coater, blade-coating and spreading the prepared dispersion onto the surface of the substrate, and drying same to obtain an MOF membrane; and S4, transferring the MOF membrane to a vacuum oven to further stabilize the structure thereof. In the present invention, two-dimensional MOF nanosheets can be conveniently and quickly prepared by means of a solvothermal method, and a large-area continuous MOF membrane can be prepared via rapid self-assembly by means of a blade coating method, which MOF membrane exhibits a good lithium ion selectivity and permeability under the dual regulation of a size effect and the affinity effect of sulfonic acid groups.
Resumen de: US20260213216A1
0000 An electrode sheet includes: a first current collector, where the first current collector includes a first body and a tab region connected to an edge of the first body, and the first body includes a coated region and an edge region; and a first conductive layer, where the first conductive layer is disposed on a surface of the coated region; where a thickness of the electrode sheet in the edge region is less than a thickness of the electrode sheet in the coated region.
Resumen de: US20260213344A1
A separator for an electrochemical device, and an electrochemical device including the same are described. The separator for an electrochemical device includes a boron nitride-containing compound in a coating layer, thereby adsorbing transition metal ions eluted from an electrode to an electrolyte liquid, and improving heat resistance of the separator.
Resumen de: US20260213316A1
0000 A housing for an energy store is disclosed, wherein the housing has an extruded portion made by an extruding process, wherein the extruded portion forms a cavity extending along an extruding direction.
Resumen de: US20260213360A1
A battery cell assembly (1) is disclosed. A first battery cell (10-13) and a second battery cell (10-13) are received in a cell housing (40) of the assembly (1) and a terminal extending from the top of the first battery cell is received in a first opening (202, 203) formed in a cell mounting frame (20, 30) and a terminal extending from the top of the second battery cell is received in a second, separate opening formed in the cell mounting frame (20, 30). The cell mounting frame (20, 30) is fastened to the cell housing (40) such that the first battery cell and second battery cell are each clamped between the floor (42) of cell housing and a shoulder (210) of the cell mounting frame. A method of assembling a battery cell assembly is also disclosed.
Resumen de: US20260213347A1
A method for manufacturing a power storage module includes: a restraining step of disposing a pair of restraining plates at both ends of a stack in a first direction and restraining the stack in the first direction by the pair of restraining plates; and a cutting step of cutting a part of the stack by a rotary blade with setting the first direction to an up-down direction in a state where the stack is restrained by the pair of restraining plates to form a cut surface after the restraining step. In the restraining step, the stack is restrained such that an outer frame region is exposed from the pair of restraining plates, and in the cutting step, an end portion of the outer frame region is cut to form the cut surface.
Resumen de: US20260213217A1
0000 A composite current collector, a preparation method therefor, an electrode, and a secondary battery. The composite current collector comprises: a polymer base film and composite layers provided on two sides of the polymer base film. Each composite layer comprises: a modified layer arranged on the polymer base film, and a metal layer arranged on the surface of the modified layer, wherein the material of the modified layer is a polymer formed by in-situ graft polymerization of a polymerized monomer and/or oligomer on the surface of the polymer base film; and the polymerized monomer comprises an acrylamide monomer, a crotonic acid monomer, or a combination thereof.
Resumen de: US20260213212A1
0000 A protective layer (20) for a lithium metal anode, according to one embodiment, comprises a fluorine (F)-containing polymer and has a crystallinity of at least 2%. According to an embodiment, provided are a protective layer for a lithium metal anode and a lithium metal anode comprising same, the protective layer for a lithium metal anode inducing uniform electrodeposition behavior and distribution of lithium ions, and having both excellent ion conductivity and excellent mechanical strength.
Resumen de: US20260213179A1
Provided are composite particles that can improve flexibility of an electrode and can cause a secondary battery to display excellent battery characteristics. The composite particles are used in dry forming of an electrode for a secondary battery and contain an electrode active material and a binder. The composite particles have an area circularity of not less than 0.50 and not more than 0.93 and have a porosity of not less than 65% and not more than 80%.
Resumen de: US20260213206A1
Provided is a negative electrode for secondary batteries, the negative electrode being capable of suppressing decrease in the charge/discharge cycle characteristics of a battery. A negative electrode for secondary batteries according to one aspect of the present disclosure is provided with: a negative electrode current collector; and a negative electrode mixture layer formed on the surface of the negative electrode current collector. The negative electrode mixture layer contains carbon nanotubes and a compound of a Si-containing material and a silane coupling agent. The silane coupling agent has a phenyl group and at least one of an amine group and a methyl group.
Resumen de: US20260213386A1
0000 An O-ring includes a first part seated on a beading portion of a battery housing, wherein the beading portion of the battery housing is recessed from an inner surface of the battery housing toward an interior of the battery housing and a second part provided above the first part and configured to cover a top end surface of the battery housing.
Resumen de: US20260213277A1
An electrode assembly in which a negative electrode, a separator, and a positive electrode are sequentially stacked and wound is provided. In the core part of the electrode assembly, the negative electrode includes a negative electrode coated portion having a negative electrode current collector and a negative electrode active material layer provided on at least one surface of the negative electrode current collector, and a negative electrode uncoated portion having the negative electrode current collector provided without a negative electrode active material layer or a negative electrode tab. In a longitudinal direction, the length of the negative electrode coated portion extending from a longitudinal end portion of the positive electrode and is controlled to a specific range.
Resumen de: US20260213387A1
0000 A battery cell assembly may include a battery cell including an electrode assembly and a first case configured to surround the electrode assembly, a second case configured to cover at least a portion of the first case, and an extinguishing agent configured to fill a space between the first case and the second case.
Resumen de: US20260211045A1
0000 Systems and methods described herein can determine battery characteristics (e.g., SOC or SOH) using ML models trained with measurements from random walk battery testing. A processor can generate, according to a first constraint, a first random value for a first current to charge a battery and a second random value, according to a second constraint different than the first constraint, for a second current to discharge the battery. The processor can measure a first voltage corresponding to the first current and a second voltage corresponding to the second current. The processor can determine, based on the first current, the first voltage, the second current and the second voltage input into ML model trained using randomly generated currents and measurements for charging and discharging a plurality of batteries, a state of charge (SOC) of the battery. The processor can operate the battery according to the SOC.
Resumen de: US20260213202A1
0000 The binder composition for a non-aqueous secondary battery negative electrode contains a polymer and an aqueous medium, the polymer having a first structural unit derived from a monomer (a1), the monomer (a1) being a nonionic compound having only one ethylenically unsaturated bond, and satisfies the following condition (1): In a test solution obtained by diluting the binder composition with water and having a nonvolatile content of 0.4 mass %, the concentration of sodium ions detected using an inductively coupled plasma optical emission analyzer is 3.0 mg/L or less.
Resumen de: US20260213351A1
A buffer member, a battery cell, a battery, and an electric apparatus are disclosed. The buffer member is used inside the battery cell, the battery cell) includes an electrode assembly, where the buffer member has a pressure-bearing face facing or facing away from the electrode assembly, and the pressure-bearing face is provided with a clearance groove.
Resumen de: US20260213260A1
0000 A production method for a halide solid electrolyte of the present disclosure includes: (A) converting a first composition containing Li, Ti, and O into a first halide containing Li, Ti, and X1; and (B) synthesizing a halide solid electrolyte containing Li, Ti, M, X1, and X2 using the first halide obtained in the (A) and a second halide containing Li, M, and X2. The M is at least one element selected from the group consisting of metal elements (excluding Li) and metalloid elements, the X1 is at least one selected from the group consisting of F, Cl, Br, and I, and the X2 is at least one selected from the group consisting of F, Cl, Br, and I.
Resumen de: US20260213369A1
A battery cell includes: a can with an electrode assembly received therein, in which the can has a bottom member, a sidewall member connected to the bottom member and extending upwardly therefrom in an axial direction, and a cap covering an open end of the can at an axial end opposite to the bottom member. A current collector plate is connected to an electrode tab of the electrode assembly proximate the open end. The current collector plate includes: a central portion electrically connected to the electrode tab and a peripheral portion in electrical contact with a radially inner surface of the sidewall of the can. The peripheral portion is also in contact with an underside of the cap. The radially inner surface of the sidewall member, a radially outer surface of the cap, and the peripheral portion of the current collector plate are all welded to one another.
Resumen de: US20260211052A1
A degradation diagnosis device includes a resistance calculation unit, a capacity calculation unit, a correlation determination unit configured to determine a correlation, and a capacity estimation unit configured to estimate the capacity of the storage battery between an (x−1)-th use and an x-th use of the storage battery system based on the correlation. The resistance calculation unit calculates the resistance a plurality of times in a pre-estimation interval up to the (x−1)-th use of the storage battery system and calculates the resistance in the capacity estimation interval, the correlation determination unit determines the correlation based on the resistance calculated in the pre-estimation interval and the capacity calculated in at least two uses of the storage battery system among a first use to the (x−1)-th use, and the capacity estimation unit estimates the capacity of the storage battery based on the correlation and the resistance calculated in the capacity estimation interval.
Resumen de: US20260210004A1
A glass fiber composite material of the present invention comprises: about 100 parts by weight of glass fibers; about 35 to about 72 parts by weight of polypropylene resin; about 12 to about 35 parts by weight of piperazine pyrophosphate; about 1 to about 20 parts by weight of a phosphagen compound; and about 1 to about 20 parts by weight of zeolite. The glass fiber composite material is excellent in lightweight properties, flame retardancy, impact resistance, and rigidity.
Resumen de: US20260213166A1
0000 A coated positive electrode active material 13 of the present disclosure includes: a first positive electrode active material 10 including lithium and a transition metal; a coating layer 11 coating the first positive electrode active material 10. The coating layer 11 includes: a first material 14 including a halide; and a second material 15 including at least one selected from the group consisting of a second positive electrode active material capable of absorbing and releasing lithium and a compound including the transition metal. A battery 100 of the present disclosure includes: a positive electrode 23; a negative electrode 26; and an electrolyte layer disposed between the positive electrode 23 and the negative electrode 26. The positive electrode 23 includes the coated positive electrode active material 13 of the present disclosure.
Resumen de: US20260213181A1
Disclosed is a process for preparing a battery material including thermal treating an aqueous suspension including partially Delithiated Lithium Nickel Oxide (DLNO) to create a thermally treated suspension and contacting the thermally treated suspension with an aqueous medium including KOH, at a temperature between 20 degrees Celsius and 90 degrees Celsius to create a stabilized slurry containing solids of the battery material. A ratio of the weight of KOH in the aqueous medium to the weight of the DLNO in the thermally treated suspension may be between about 0.2 and about 0.03.
Resumen de: WO2026152900A1
The present application relates to a secondary battery and an electronic device. The secondary battery comprises an electrode assembly. The electrode assembly comprises a positive electrode sheet, a separator, and a negative electrode sheet that are stacked. The negative electrode sheet comprises a negative electrode current collector and a negative electrode active material layer, wherein the negative electrode active material layer comprises a negative electrode active material; the negative electrode active material comprises a silicon-based material; and at least one surface of the negative electrode current collector in the thickness direction is provided with the negative electrode active material layer. In the thickness direction of the negative electrode current collector, the negative electrode current collector comprises a first metal layer and a second metal layer attached to the surface of the first metal layer. The first metal layer is a metal foil, and the first metal layer comprises copper. The tensile strength of the negative electrode current collector is not less than 700 MPa, the elongation rate of the negative electrode current collector is not less than 8%, and the thickness of the negative electrode current collector is H1, wherein H1≥5 μm. The secondary battery and electronic device in the present application can mitigate the problems of deformation and fracture of the negative electrode sheet during cycling.
Resumen de: WO2026152567A1
The embodiments of the present application relate to the technical field of batteries. Disclosed are a battery pack, an energy storage apparatus and an energy storage system. A conductive structural adhesive is provided between an insulating layer of each battery and the bottom of a first case. When the battery pack is at a high electric field strength, even if there are bubbles inside the structural adhesive, due to the conductivity of the structural adhesive, charges in the structural adhesive move under the high electric field strength, such that the voltages at various positions in the structural adhesive reach a balance, and a high voltage difference is not to be formed at the bubbles of the structural adhesive. Therefore, partial discharge is not to be generated in the bubbles of the structural adhesive, preventing the insulating layer on the outer surface of the battery from losing an insulating effect due to aging under the long-term effect of the partial discharge, thereby avoiding thermal runaway caused by a short circuit between the battery and the first case of the battery pack, and also ensuring that the battery pack can pass partial-discharge testing and thus be put into use.
Resumen de: WO2026152901A1
The present application relates to a secondary battery and an electronic device. The secondary battery comprises an electrode assembly. The electrode assembly comprises a positive electrode sheet, a separator, and a negative electrode sheet which are stacked. The negative electrode sheet comprises a negative electrode current collector and a negative electrode active material layer, wherein the negative electrode active material layer comprises a negative electrode active material, and the negative electrode active material comprises a silicon-based material; and at least one surface of the negative electrode current collector is provided with a negative electrode active material layer. The negative electrode current collector comprises a first metal layer and a second metal layer, which is attached to a surface of the first metal layer, wherein the first metal layer is a metal foil, the first metal layer comprises nickel, and the second metal layer comprises copper. The tensile strength of the negative electrode current collector is not less than 950 MPa, and the elongation rate of the negative electrode current collector is not less than 6%. The secondary battery and the electronic device of the present application can ameliorate the problems of the deformation and breakage of a negative electrode sheet during the cycle process.
Resumen de: US20260213379A1
An electrode includes an electrode plate including a substrate and an active material layer located on a portion of the substrate. A protective layer including two or more regions having different thicknesses is provided on the electrode plate.
Resumen de: US20260213192A1
A positive electrode active material includes a plurality of secondary particles, wherein each of the secondary particles includes a plurality of primary particles, each of the primary particles contains an olivine-type phosphate compound, carbon is attached to at least part of a surface of the primary particle, a cross-sectional surface of the secondary particle includes a first region and a second region, the first region includes a center of the secondary particle, the second region includes a surface of the secondary particle, a minimum circumscribed circle of the cross-sectional surface of the secondary particle has a radius of D, the first region is a circle including a center of the minimum circumscribed circle and having a radius of 0.5D, a relationship of 1.1≤V1/V2 is satisfied, the V1 is a pore volume (cm3/g) in the first region, and the V2 is a pore volume (cm3/g) in the second region.
Resumen de: US20260208474A1
0000 A press device is configured to transfer a transfer body to a substrate sheet. The press device has a transfer sheet roll body around which a transfer sheet including the transfer body is wound, a transfer roller which transfers the transfer body to the substrate sheet, and an expander roll which applies a tension to the transfer sheet. The expander roll is disposed upstream of the transfer roller in a conveyance direction of the substrate sheet, and applies the tension to the transfer sheet in a width direction.
Resumen de: WO2026152763A1
The present application relates to a cell encapsulation fixture and a cell encapsulation apparatus. The cell encapsulation fixture comprises a first fixture plate, a second fixture plate and an adjustment plate, wherein the second fixture plate is arranged to be openable and closable relative to the first fixture plate; and when the second fixture plate covers the first fixture plate, the mutually facing surfaces of the second fixture plate and the first fixture plate are configured as respective clamping surfaces. The adjustment plate is arranged on the clamping surface of at least one of the first fixture plate and the second fixture plate, and is configured to place an aluminum-plastic film and a battery cell. The height of the adjustment plate relative to the clamping surface where the adjustment plate is located in the direction of thickness of the battery cell is adjustable, such that in the direction of thickness of the battery cell, the height of a clamping space for clamping the aluminum-plastic film and the battery cell can be adjusted.
Resumen de: WO2026152524A1
The present application provides a battery cell connection assembly, a battery module, and a vehicle. The battery module comprises the battery cell connection assembly, wherein the battery cell connection assembly comprises: an isolation substrate, a collection wire harness, and a plurality of wire harness holders. The isolation substrate is provided with first pressure relief holes corresponding to explosion-proof valves of battery cells; the collection wire harness extends in a first direction; and the plurality of wire harness holders are mounted on the isolation substrate at intervals in the first direction. The wire harness holders are provided with wire clamp structures configured to limit the collection wire harness, so that the collection wire harness avoids the first pressure relief holes.
Resumen de: WO2026153182A1
The present application discloses an inspection mechanism and a conveying device. The inspection mechanism comprises a support portion, an adjustment portion, and at least two inspection portions. The support portion is used for being movably connected to a mounting platform, and is capable of moving in a first direction relative to the mounting platform. An adjustment assembly is movably connected to the support portion, and is capable of moving in a second direction relative to the support portion. A first included angle is formed between the second direction and the first direction. A mounting assembly is connected to the adjustment assembly. Each inspection portion is movably connected to the mounting assembly, and the inspection portion is capable of moving relative to the mounting assembly, so that at least one of an inspection angle and an inspection distance between the corresponding inspection portion and a material can be changed. Thus, during rotation of a conveying turntable, the at least two inspection portions can be used to achieve multi-angle rapid inspection of materials, thereby reducing the working duration occupied by an inspection process.
Resumen de: WO2026152622A1
Disclosed in the present application is a battery pack, comprising: at least two battery modules, wherein recessed assembly grooves are provided at one end on an X axis, electrodes of the battery modules extend into the assembly grooves, and a busbar is integrated between the electrodes; an end cover, which is assembled at one end of the battery modules on the X axis, wherein a quick-connect socket is provided on the end cover; and a battery management system, wherein a quick-connect wire is inserted between the battery management system and the quick-connect socket.
Resumen de: WO2026152677A1
Disclosed in the present application are a cell heat-insulation pad design method, an electronic device and a storage medium. The method comprises: acquiring performance parameters of target cells; on the basis of the performance parameters, determining size data of a heat-insulation pad corresponding to the target cells; verifying the size data of the heat-insulation pad to generate a corresponding verification result; and after it is determined on the basis of the verification result that the size data of the heat insulation pad does not meet a preset requirement, adjusting the heat-insulation pad between the target cells.
Resumen de: US20260213170A1
A ceramic composite particle includes a ceramic particle and a coating layer that covers at least a part of a surface of the ceramic particle and contains two or more phases. The coating layer contains a first phase composed of an oxide-based ion conductor and a second phase composed of an amorphous-phase-containing ion conductor containing an amorphous phase. The first phase has an ionic conductivity higher than an ionic conductivity of the second phase. The second phase has a Young's modulus lower than a Young's modulus of the first phase.
Resumen de: US20260213301A1
0000 A cell barrier to prevent thermal runaway propagation (TRP) in a prismatic battery cell includes a fire-resistant paper having a top side and a bottom side. The cell barrier further includes a top hat with a vent feature. The top hat is attached to the bottom side of the fire-resistant paper. The cell barrier further includes a left-hand side plate and a right-hand side plate attached to the top side of the fire-resistant paper. The cell barrier further includes a flex thermal barrier attached to either of the left-hand side plate and the right-hand side plate. The top hat is disposed between the left-hand side plate and the right-hand side plate. The cell barrier is positioned adjacent to the prismatic battery cell.
Resumen de: US20260213554A1
0000 A battery trigger device belonging to the field of battery technology is provided. The battery trigger device includes: an input device and a message generation device; the message generation device includes a wireless communication module and a control module; the wireless communication module is wirelessly connected to the input device; the wireless communication module is configured to acquire target data sent by the input device; the control module is connected to the wireless communication module; the control module is provided with a wired communication interface for connecting to a management device of a target battery apparatus; the control module is configured to generate a target signal based on the target data and output the target signal to the management device; and the target signal is used to trigger the target battery apparatus to output electrical energy.
Resumen de: US20260213434A1
A battery connector includes an insulating base having a bottom wall, a surrounding wall and a receiving groove; a negative terminal fixed in the bottom wall and including a first elastic arm with a first contacting portion; a positive terminal having a second elastic arm and a stopping portion, the second elastic arm having a second contacting portion for contacting with a side face of the button cell and two latching portions bending from two sides thereof respectively . The stopping portion is located in a same vertical plane with two distal ends extending out of the receiving groove and abutting against an outer side of the surrounding wall and a middle portion between the two distal ends is located at an inner side of the surrounding wall, and a lower edge of the middle portion is integrally connected with the second elastic arm by an inclined portion.
Resumen de: WO2026152782A1
The present application relates to a liquid-cooled immersion-type UPS battery structure, comprising a cover plate, a case, a battery cell module, and a cooling liquid. The battery cell module is arranged in the case; the cooling liquid is accommodated in the case, and the battery cell module is immersed in the cooling liquid; the cover plate covers the top of the case; one end surface of the case is provided with a cooling liquid inlet, a cooling liquid outlet, and an explosion-proof valve which are independent of each other; the cooling liquid inlet and the cooling liquid outlet are separately communicated with the case; and the cooling liquid inlet and the cooling liquid outlet are both arranged close to the bottom of the end surface, and the explosion-proof valve is arranged close to the top of the end surface. The present application can achieve overall cooling of the battery cell module and of an electronic component and isolation from oxygen, when thermal runaway occurs in a battery cell, gas generated can be quickly and effectively discharged through the explosion-proof valve outside the case, preventing module explosion, and effectively prolonging the service life of a battery, and the battery structure can be produced and used as a general-purpose product.
Resumen de: US20260209904A1
0000 An aluminum alloy material, an aluminum alloy structural component, a battery box, a battery system, an electric apparatus, a preparation method, and an application are provided. The aluminum alloy material includes the following constituent elements: Si, Mn, Mo, Zr, Sr, Sc, B, a matrix element Al, and an unavoidable impurity element. In the aluminum alloy material, both Mo element and Zr element have a low content.
Resumen de: US20260213324A1
A battery mounting assembly and a backup power supply are provided. The battery mounting assembly includes one or more parallel-connected brackets; the parallel-connected bracket includes a positive electrode bracket and a negative electrode bracket; the positive electrode bracket is arranged with two rows of first accommodating holes at intervals facing the negative electrode bracket in a first direction; where, the line connecting the center points of two adjacent first accommodating holes in different rows and the first direction form a set included angle which is greater than 0° to form a first air duct in the parallel-connected bracket; the negative electrode bracket is arranged with second accommodating holes corresponding to the first accommodating holes facing the positive electrode bracket; in the parallel-connected bracket, each first accommodating hole and corresponding second accommodating hole are arranged to set the positive electrode and the negative electrode of a cell.
Resumen de: WO2026152805A1
A lithium-ion secondary battery and a preparation method therefor, an electric device, and the use. The lithium-ion secondary battery comprises a negative electrode sheet and an electrolyte. The negative electrode sheet comprises a negative electrode current collector and a negative electrode active material layer located on at least one side of the negative electrode current collector. The negative electrode active material layer comprises an electronegative coating active material, and the electronegative coating active material comprises a coating layer. The coating layer comprises doped carbon, the doped carbon comprises a carbon matrix and an electronegative doping element, and the carbon matrix comprises one or more of soft carbon and hard carbon. The Pauling electronegative scales of the electronegative doping element and carbon are respectively marked as χ1 and χC, and the absolute difference between χ1 and χC is 0.03-0.49. The negative electrode active material layer comprises a first negative electrode active layer and can further comprise a second negative electrode active layer located between the negative electrode current collector and the first negative electrode active layer.
Resumen de: US20260208623A1
Battery systems and methods for balancing batteries are provided. A battery system includes groups connected in series, wherein each group has a balancing window defined between an upper voltage V1 and a lower voltage V2; each group has a minimum idle voltage V3; V1>V2>V3; each group comprises at least one cell; and each cell independently has a self-discharge current less than or equal to self-discharge current ISD; and a diode arrangement configured to passively reduce a difference in voltage between groups, wherein: the diode arrangement comprises diodes; each diode is connected electrically in parallel with a respective group; each diode is configured to drain the respective group with a same first diode current ID1 at voltage V1, with a same second diode current ID2 at voltage V2, and with same a third diode current ID3 at voltage V3; ID1>ID2>ID3>0; and ID1>ID2+ISD.
Resumen de: WO2026152891A1
The present disclosure relates to a deviation correction apparatus and a battery production device. The deviation correction apparatus comprises: a first deviation correction assembly and a second deviation correction assembly. The first deviation correction assembly comprises a first moving seat, a first deviation correction roller, and a first adjustment driving member, wherein the first deviation correction roller is arranged on the first moving seat, and the first adjustment driving member is configured to drive the first moving seat to drive the first deviation correction roller to move in a first direction. The second deviation correction assembly comprises a second moving seat, a second deviation correction roller, and a second adjustment driving member, wherein the second deviation correction roller is arranged on the second moving seat, and the second adjustment driving member is configured to drive the second moving seat to drive the second deviation correction roller to move close to or away from the first deviation correction roller in the first direction. The deviation correction apparatus provided by the present disclosure can improve the deviation correction efficiency.
Resumen de: WO2026152809A1
A lithium-ion secondary battery, an electric apparatus, and a use. The lithium-ion secondary battery comprises a negative electrode sheet. The negative electrode sheet comprises a negative electrode current collector, and a second negative electrode active layer and a first negative electrode active layer which are sequentially arranged on at least one side of the negative electrode current collector. The second negative electrode active layer is located between the negative electrode current collector and the first negative electrode active layer; and the second negative electrode active layer comprises a second negative electrode active material and quaternary ammonium salt compounds.
Resumen de: US20260213268A1
0000 An electrolyte additive composition, an electrolyte, a battery, and an electric apparatus are provided. The electrolyte additive composition includes an isocyanate additive and an impedance-stabilizing additive at a weight ratio of (0.1 to 0.8):1. In the electrolyte additive composition, the impedance-stabilizing additive and the isocyanate additive are compounded, and a content ratio of the two is controlled, so that the stability of the impedance-stabilizing additive in the electrolyte can be improved, reducing the DCR of a cell of a battery and improving the stability of the DCR of the cell of the battery during charging, discharging, and storage, thereby improving the RTE of the battery during service.
Resumen de: WO2026153429A1
A positive electrode material, a surface-reconstructed material and a lithium-ion battery. In an XPS spectrum of the positive electrode material, after peak fitting processing, a surface oxygen O1s characteristic peak of the positive electrode material can yield at least two characteristic peaks, including: a first characteristic peak within the range of 529.0±0.5 eV and a second characteristic peak within the range of 531.2±0.5 eV. The positive electrode material satisfies at least one of the following conditions: (1) the degree of separation between the first characteristic peak and the second characteristic peak is less than or equal to 1.0; and (2) the distance between the peak positions of the first characteristic peak and the second characteristic peak is less than or equal to 2.4 eV. The positive electrode material in the embodiments of the present application has a more stable structure, thereby helping to improve performance in terms of the cycling life, safety, etc. of a battery.
Resumen de: WO2026153007A1
Disclosed in the present invention are a positive electrode material, and a preparation method therefor and the use thereof. The chemical formula of the positive electrode material is: Li1+nMnxAMyTMzO2-mQm, where n is 0-0.4, and x is 0.5-0.7; AM is Na and/or K, each y independently is 0.1-0.25, and the sum of all y is less than or equal to 0.4; TM is Zr, Cu, Mg, Ti, Fe, Al, etc., each z independently is 0.01-0.1, and the sum of n, x, all y and all z is 1; and Q is F, Cl, Br, I, etc., each m independently is 0.1-0.35, and the sum of all m is less than or equal to 0.4. During preparation, all the raw materials of the components are mixed and ground, and then sintered in one step. The preparation method is simple and easy to operate, and the prepared positive electrode material also has excellent electrochemical performance, which indicates that the present invention can avoid performing doping with a metal, such as Ni or Co, which has a relatively high price, thereby lowering the cost.
Resumen de: WO2026152863A1
The present application belongs to the technical field of energy storage. Provided is an energy storage system. A power converter in the energy storage system can not only charge and discharge a battery pack, but can also supply an excitation current to the battery pack. A current sampling circuit in the energy storage system can measure the excitation current flowing through the battery pack, and transmit the measured excitation current to a BMU in the battery pack. The BMU can measure a voltage that is generated across a battery cell by the excitation current, and determine EIS of the battery cell on the basis of the received excitation current and the measured voltage. Since the power converter can supply the excitation current to the battery pack during the charging and discharging of the battery pack, and none of the current measurement process, the voltage measurement process and the EIS measurement process interferes with the normal charging and discharging of the battery pack, the EIS measurement process of the battery cell can be performed synchronously with the charging and discharging process of the battery pack, thereby enabling online EIS measurement of the battery cell.
Resumen de: US20260213335A1
The present disclosure relates to a battery assembly. The battery assembly may comprise: a plurality of battery cells arranged along a stacking direction; and a housing case containing the plurality of battery cells and including at least one end plate; wherein the end plate has a length dimension that extends parallel to the stacking direction and forms a first side of the housing case. The at least one end plate has one or more first type of venting holes penetrating it. The battery assembly possesses improved thermal stability, extended battery life and improved structural stability.
Resumen de: US20260213358A1
0000 A battery pack includes: a plurality of battery stacks, each of the plurality of battery stacks including a plurality of battery cells stacked in a first direction; a case configured to house the battery stack; and a plurality of busbars configured to electrically connect the plurality of battery cells to each other. Th plurality of the battery stacks are arranged in a second direction perpendicular to the first direction in the case. The plurality of busbars include a first busbar arranged to span between the battery stacks adjacent to each other in the second direction and connected to terminals of the battery cells included in different battery stacks so as to electrically connect the battery cells included in the different battery stacks. The plurality of battery cells arranged in the second direction at a same position in the first direction are electrically connected in series by the first busbar.
Resumen de: US20260213329A1
A battery pack structure includes a battery module and a case that houses the battery module. The case includes a lower case that is disposed below the battery module. The case also includes an upper case that is disposed above the lower case and is made of a fiber reinforced resin.
Resumen de: US20260213214A1
0000 A current collector for a lithium-ion battery includes a polymer substrate, a first layer of functional material positioned onto a top surface of the polymer substrate and a second layer of functional material positioned onto a bottom surface of the polymer substrate, a first metal layer applied onto the first layer of functional material, and a second metal layer applied onto the second layer of functional material, wherein, the first layer of functional material is positioned between and interconnecting the first metal layer and the substrate and the second layer of functional material is positioned between and interconnecting the second metal layer and the polymer substrate.
Resumen de: US20260213213A1
In the negative electrode, a negative electrode current collector, a metal foil, and a negative electrode active material layer are layered in this order.
Resumen de: US20260213189A1
A cathode active material for an anion battery according to the present disclosure is a compound containing a lanthanoid, sulfur, and chlorine. An anion battery according to the present disclosure includes a cathode active material layer. The cathode active material layer contains the cathode active material of the present disclosure.
Resumen de: US20260213218A1
A battery cell includes C cathode electrodes each including a cathode active material layer and a cathode current collector, A anode electrodes each including an anode active material layer and an anode current collector, and S separators, where C, A, and S are integers greater than one. An interlayer is arranged between each of the S separators and the cathode active material layer of each of the C cathode electrodes. The interlayer includes a porous conductive network including one of a wire mesh layer and a perforated metal layer.
Resumen de: WO2026152935A1
The present application discloses a battery cell, a battery device, and an electric device. The battery cell comprises a positive electrode sheet; the positive electrode sheet comprises a positive electrode current collector and a composite positive electrode film layer located on at least one side of the positive electrode current collector; the composite positive electrode film layer comprises a first positive electrode film layer and a second positive electrode film layer; the first positive electrode film layer is located between the positive electrode current collector and the second positive electrode film layer; the first positive electrode film layer comprises a first positive electrode active material; the second positive electrode film layer comprises a second positive electrode active material; and the volume-based particle size distribution Dv199 of the first positive electrode active material is smaller than the volume-based particle size distribution Dv299 of the second positive electrode active material, wherein Dv199≤10 μm. The battery cell provided in the present application has improved cycle performance.
Resumen de: US20260209051A1
The present disclosure relates to a silicon-carbon composite anode material, which has a core-shell structure including a core layer of nano-silicon and a shell layer at least partially or fully coating the core layer of nano-silicon, the shell layer includes at least one layer of nitrogen-doped graphite. Sizes of the core-shell structure are in a range of 5 μm to 10 μm, and the nitrogen content of the nitrogen-doped graphite layer is less than or equal to 10%. Additionally, the present disclosure provides a preparation method for the silicon-carbon composite anode material and a secondary battery including the silicon-carbon composite anode material.
Resumen de: US20260210625A1
0000 The present disclosure relates to a system for controlling a drying process of a coated film, the system including a sensor configured to detect one or more drying-process characteristics of the coated film, an optical radiation source module configured to emit radiation toward the coated film, and a control device configured to control the radiation of the optical radiation source module based on the drying-process characteristics. The present disclosure also relates to a corresponding method for controlling a drying process of a coated film.
Resumen de: US20260210626A1
0000 The present disclosure relates to a system for drying a coated film on both sides, the system including a first radiation source module configured to emit first radiation toward a first side of the coated film, a second radiation source module configured to emit second radiation toward a second side of the coated film, and a transport means configured to guide the coated film along a transport direction between the first and second radiation source modules. The present disclosure further relates to a corresponding drying apparatus and a corresponding method for drying a coated film on both sides.
Resumen de: AU2025291721A1
A battery diagnosis device according to an embodiment disclosed in the present document may comprise: an interface for acquiring state data including a current value and a voltage value of a battery cell for each diagnosis cycle corresponding to a charging cycle or a discharging cycle; and a controller for calculating a similarity between reference data and current data including the current value, extracting, from the current data, first current data having the similarity exceeding a reference value, and diagnosing whether the battery cell is abnormal, on the basis of a first voltage value corresponding to the first current data.
Resumen de: US20260213327A1
0000 A restraining member includes: a body extending in the predetermined direction; and fixed ends extending in a direction intersecting the predetermined direction from both ends of the body and each facing a corresponding one of opposite end faces of the end plates, each of the opposing end faces being an end face of a corresponding one of the end plates in the predetermined direction. A fixing recess configured to receive the fixed end is provided at an end of the end face on a side closer to the body. At least part of an edge of the fixing recess on a side opposite to the body and at least part of an edge of the fixed end on the side opposite to the body has a protrusion-and-recess shape. The edge of the fixing recess and the edge of the fixed end are welded to each other.
Resumen de: US20260211047A1
0000 A battery system includes a current sensor that detects a ripple current, and an ECU. The ECU reconstructs, based on an attenuation curve, the actual amplitude of the ripple current flowing through the current sensor from the amplitude of the ripple current detected by the current sensor. When the reconstructed amplitude is greater than the upper limit of the amplitude of the ripple current at which lithium deposition in a battery can be suppressed, the ECU reduces the amplitude of the ripple current.
Resumen de: US20260213262A1
An electrode for use in energy storage devices including an electrode film formed from an electrode film mixture including water and a solvent additive, and methods thereof, are disclosed. The electrode utilizing water and a solvent additive may aid in reducing compressive stress, creases and/or curvature during formation, thereby achieving improved electrode shape and/or strength.
Resumen de: WO2026153093A1
Embodiments of the present application provide a water-cooling unit control method, a water-cooling unit, and an energy storage system. The method comprises: on the basis of an acquired first fault signal, determining a fault duration, the first fault signal indicating that a power supply module of a water-cooling unit operates abnormally; and when the fault duration is greater than or equal to a specified duration, controlling the water-cooling unit to shut down, and outputting a target fault signal to a control unit of an energy storage system, the target fault signal indicating that a fault has occurred in the water-cooling unit.
Resumen de: WO2026152783A1
A secondary battery cell and an electric device. The secondary battery cell comprises a negative electrode sheet, and the negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer located on at least one side of the negative electrode current collector; the negative electrode film layer comprises a solid electrolyte material and a graphite material; the negative electrode film layer comprises a first region and a second region, and the second region is located between the first region and the negative electrode current collector; and the content of the solid electrolyte material in the first region is less than the content of that in the second region.
Resumen de: WO2026152929A1
The present application relates to a transfer device and a battery production apparatus. The transfer device comprises a frame, a transfer mechanism, and a cam drive mechanism. The frame comprises a fixed platform and a mounting bracket, wherein the mounting bracket is arranged on the fixed platform and extends in a first direction. The transfer mechanism comprises a mounting member and a gripping member, wherein the mounting member is movably arranged on the mounting bracket in the first direction, and the gripping member is arranged on the mounting member and can rotate relative to the mounting bracket. The cam drive mechanism comprises a cam and a swing arm, wherein the swing arm is rotatably connected to the mounting bracket, one end of the swing arm being connected to the cam, and the other end being connected to the mounting member; rotation of the cam drives the swing arm to swing, thereby driving the mounting member to move in the first direction. By providing the cam drive mechanism to drive the transfer mechanism, the transfer mechanism achieves a large moving distance and a high moving speed in the first direction. Compared with conventional robotic arms, the transfer device of the present application has a simple motion path and continuous actions, greatly improving the transfer efficiency.
Resumen de: WO2026153584A1
Provided in the present application are a battery pack equalization method, a controller and a battery pack charging system. The battery pack equalization method is applied to a battery pack charging process, and a battery pack comprises a plurality of battery cells. The method comprises: acquiring voltage values of a plurality of battery cells (S101); when the voltage values of the plurality of battery cells are all within a preset voltage range and satisfy an equalization condition, selecting a reference battery cell from among the plurality of battery cells, and using the battery cells among the plurality of battery cells other than the reference battery cell as battery cells to be equalized (S103); calculating a voltage difference between each battery cell to be equalized and the reference battery cell (S105); and on the basis of the calculated voltage difference, equalizing the corresponding battery cell to be equalized (S107).
Resumen de: WO2026152361A1
The present invention provides a positive electrode sheet. The positive electrode sheet comprises a positive electrode current collector and a positive electrode active material layer, wherein the positive electrode active material layer comprises a positive electrode active material, a conductive agent, and binders; the binders include a type A binder and a type B binder; the type A binder comprises a first binder; the type B binder comprises at least one of a second binder and a third binder; and the contents of the first binder, the second binder, and the third binder are α, β, and γ, respectively, and α, β, and γ satisfy: 1.0%≤α+β+γ≤3.0%, 0%<α<3.0%, 0%≤β≤1.0%, and 0%≤γ≤2.0%. In the present application, by controlling the mixing ratio of multiple binders, the solid content of a positive electrode mixture is increased, and the usage amount of a solvent is reduced, which facilitates subsequent extrusion forming of a film and effective lamination and bonding with the current collector, so that the positive electrode mixture can have good softness and tensile properties while it is ensured that the positive electrode active material layer can be laminated and bonded with the positive electrode current collector, thereby ensuring the manufacturability of subsequent extrusion and thinning, and a lamination process.
Resumen de: US20260208628A1
To enable efficient charging to be performed on a battery in low-temperature state, a thermal management system includes a first circuit that includes an electric heater and performs temperature adjustment of a battery, a second circuit that performs temperature adjustment of a drive device, and a control unit. The control unit determines whether the temperature of the battery is equal to or lower than a first temperature, executes first heating control that heats a heating medium in the first circuit using the electric heater when it is determined that the temperature of the battery is equal to or lower than the first temperature, and subsequently, when the temperature of the battery becomes higher than the first temperature, connects the first circuit and the second circuit and executes second heating control that heats the heating medium using waste heat of the drive device.
Resumen de: WO2026153283A1
The present application relates to the technical field of electrochemistry. The present application relates to a positive electrode active material, a positive electrode sheet, a battery, and an electric device. The positive electrode active material comprises secondary particles formed by agglomeration of primary particles; the primary particles comprise a carbon-coated iron-based phosphate; and the secondary particles have an internal average porosity of less than or equal to 15%.
Resumen de: WO2026152817A1
The present application provides a battery cell, a lithium-ion secondary battery and a preparation method therefor, and an electric device. The battery cell comprises a positive electrode sheet and a negative electrode sheet. The positive electrode sheet comprises a positive electrode current collector and a positive electrode active layer arranged on at least one side of the positive electrode current collector, and the positive electrode active layer comprises a lithium nickel cobalt manganese oxide. The negative electrode sheet comprises a negative electrode current collector and a negative electrode active layer arranged on at least one side of the negative electrode current collector, and the negative electrode active layer comprises graphite. The coating weight of the negative electrode active layer is 0.09 mg/1540.25 mm2-0.15 mg/1540.25 mm2. The battery cell satisfies: 0.12 mΩ≤DCR≤0.5 mΩ, wherein DCR is the direct current internal resistance of the battery cell at 25°C and 70% SOC under the conditions of a discharge rate of 4 C and a discharge duration of 10 s.
Resumen de: US20260213378A1
A secondary battery has an electrode laminate in which a plurality of positive electrode layers and a plurality of negative electrode layers are laminated via an electrolyte layer, and a sheath that accommodates the electrode laminate. A tab lead protruding from the sheath is joined to a current collector of the positive electrode layers and a current collector of the negative electrode layers. A resin member configured to cut off an overcurrent according to an increase in temperature is provided between the tab lead and at least one of the current collector of the positive electrode layers or the current collector of the negative electrode layers.
Resumen de: US20260213321A1
A battery module includes: a plurality of battery cells; and a case accommodating the plurality of battery cells, wherein the case includes: a lower plate supporting lower portions of the plurality of battery cells; a side plate defining an accommodating space for the plurality of battery cells together with the lower plate; and a partition wall between the side plate and the plurality of battery cells, the partition wall being spaced apart from the side plate.
Resumen de: US20260211054A1
0000 Proposed are a method and an apparatus for sorting out defective battery cells. The method includes performing constant voltage (CV) charging on a plurality of battery cells, measuring constant voltage charging capacity and constant voltage charging time of the plurality of battery cells in a constant voltage charging section, calculating a constant voltage charge value by dividing the constant voltage charging capacity by the constant voltage charging time measured in the constant voltage charging section for each of the battery cells, measuring an open circuit voltage of the plurality of battery cells after completion of the CV charging, and sorting out defective battery cells on the basis of the calculated constant voltage charge values and the measured open circuit voltages.
Resumen de: US20260211048A1
A full charge capacity calculating device configured to calculate the full charge capacity of a battery includes: a setting unit configured to set, based on the electric current and the temperature of the battery, a control lower limit at which the deviation between the open circuit voltage and the closed circuit voltage of the battery is corrected; a measuring unit configured to charge the battery in a predetermined section and measure the integrated value of electric current in the section when the state of the battery reaches the control lower limit; and a calculating unit configured to calculate the full charge capacity of the battery based on the stored energy of the battery when the control lower limit is reached and the integrated value of electric current.
Resumen de: US20260209073A1
0000 A cathode active material for a lithium secondary battery according to embodiments of the present disclosure comprises a lithium-sulfur-metal-containing portion and lithium-transition metal oxide particles having a minimum particle diameter (Dmin) of greater than 1 μm, wherein a relative standard deviation of the sulfur signal values of the lithium-transition metal oxide particles, as measured repeatedly ten times by X-ray photoelectron spectroscopy (XPS) analysis, is 10.5% or less.
Resumen de: US20260213300A1
0000 A battery pack and a cooling system including the battery pack are disclosed. A battery pack according to the present disclosure includes: a pack housing configured to receive coolant for immersion cooling; a battery module accommodated within the pack housing; and an electrical component accommodated within the pack housing and disposed separately from the battery module, wherein the pack housing includes: a battery module housing configured to accommodate the battery module; and an electrical component housing configured to accommodate the electrical component, wherein the coolant flows through the battery module housing and the electrical component housing.
Resumen de: WO2026153013A1
The present application relates to the technical field of aircraft heat dissipation, and discloses an external heat dissipation device for an aircraft. The external heat dissipation device for the aircraft in the present application is applied to an electric aircraft. The electric aircraft comprises a battery compartment. The battery compartment internally comprises a plurality of heat dissipation channels and a plurality of openings in communication with the heat dissipation channels. The heat dissipation device can be in communication with at least a portion of the plurality of openings to introduce cooling fluid into the battery compartment through the openings, thereby dissipating heat from the interior of the battery compartment. The external heat dissipation device for the aircraft in the present application enables a battery to be cooled to a safe take-off temperature in a short time, thereby increasing the number of flights and increasing utilization.
Resumen de: WO2026153504A1
The present application provides a positive electrode slurry solvent and a preparation method therefor, a positive electrode slurry, and a secondary battery. The positive electrode slurry solvent comprises 3-methoxy-N,N-dimethylpropanamide and 3-methoxypropanoic acid. Based on the mass of the positive electrode slurry solvent, the mass percentage content of 3-methoxy-N,N-dimethylpropanamide is W, wherein W≥99.7%, and the mass percentage content of 3-methoxypropanoic acid is A, wherein 0.001%≤A≤0.2%. By controlling the mass percentage content of 3-methoxy-N,N-dimethylpropanamide and the mass percentage content of 3-methoxypropanoic acid to be within the ranges specified in the present application, the content of residual alkali in the positive electrode slurry is reduced, the phenomenon of gelation in the positive electrode slurry is mitigated, the viscosity of the slurry is reduced, and the dispersity and stability of the positive electrode slurry are improved. In addition, lithium 3-methoxypropanoate generated by reaction is dispersed on the surface of a positive electrode, which is conducive to improving the stability of an interfacial film, suppressing an interfacial reaction, reducing the decomposition of an electrolyte, and reducing interfacial impedance, thereby improving the high-temperature storage performance and high-temperature cycle performance of secondary batteries.
Resumen de: WO2026153010A1
The present application discloses a hard carbon preparation method, a battery cell, and an electrical device. The preparation method comprises the following steps: mixing a first starch-based material and an inhibitor to obtain a mixture, wherein the inhibitor comprises a hard carbon precursor capable of being used to prepare hard carbon; and carbonizing the mixture to obtain the hard carbon. In the technical solution of the present application, an inhibitor is added to a starch-based material to facilitate the inhibition of foaming and expansion of the starch-based material, thereby reducing damage to the microstructure of the hard carbon and accordingly improving the specific capacity of the hard carbon.
Resumen de: WO2026152517A1
The present application relates to the technical field of automation, and discloses a liquid injection device. The liquid injection device comprises a workbench, a moving apparatus, a clamping apparatus, and a pipetting apparatus. The workbench is provided with a first storage area and a liquid injection position, the first storage area being used for storing reagent bottles, and the liquid injection position being used for placing configuration bottles. The moving apparatus is arranged on the workbench. The pipetting apparatus is arranged on the moving apparatus, and the moving apparatus is used for driving the pipetting apparatus to move, so that the pipetting apparatus is able to move to the first storage area to aspirate liquid from the reagent bottles, and to move to the liquid injection position to inject the aspirated liquid into the configuration bottles. The technical solution of the present application reduces the number of moving apparatuses and simplifies the structure of the liquid injection device, by integrating the clamping apparatus and the pipetting apparatus on one moving apparatus.
Resumen de: US20260213380A1
0000 Disclosed herein is a battery module. The battery module includes: a first bracket including a first tray in which first wells are formed; a second bracket including a second tray in which second wells are formed; a plurality of cells configured to be at least partially inserted into the first and second wells; one or more first electrodes disposed between the first tray and the cells; one or more second electrodes disposed between the second tray and the cells; and one or more elastic coupling members configured to provide the elastic force intended to at least partially tighten the first and second brackets in a third direction.
Resumen de: WO2026154298A1
The present invention provides a cathode for electrochemical cells, comprising a combination of electroactive materials and additive active materials in a weight ratio of 85- 95%, binders in a range of 3-8% by weight, and conductive diluents in a range of 1-5% by weight. The electroactive materials include lithium manganese iron phosphate (LLMFP), lithium ferro phosphate (LFP), nickel-manganese-cobalt oxides (NMC 111, NMC 532, NMC 622, NMC 811, NMC 9 0.5 0.5), and lithium nickel cobalt aluminum oxide (NCA). The additive active materials include lithium cobalt oxide (LCO), lithium nickel cobalt aluminum oxide (NCA), and lithium-ion manganese oxide (LMO). The disclosed cathode enables formation of a high power density electrochemical cell, while maintaining optimal energy density, an extended lifecycle having a high number of charge-discharge cycles.
Resumen de: AU2025212847A1
The present disclosure relates to systems, devices, and methods for storing and transporting used battery cells. In particular, in one or more embodiments, the disclosed systems provide a battery cell storage and transportation system that includes a plurality of battery cell storage and transportation trays. The battery cell storage and transportation trays can be stacked and can encapsulate individual battery cells in a vertical orientation within dedicated cavities. Moreover, the battery cell storage and transportation trays can include isolation cavities for terminals of the battery cells. Furthermore, in some embodiments, the disclosed systems provide for a series of battery cell storage and transportation trays to be stacked and placed onto a pallet base for storage and/or transportation.
Resumen de: US20260210851A1
0000 An electrode tape inspection device designed for continuously performing dimensional inspection of and detecting foreign substances with an electrode and tape attached to the electrode during an electrode taping process. The inspection device comprises a photographing unit and two illumination units for dimensional and foreign substance inspection. The photographing unit is configured to photograph the electrode and the tape attached to the electrode. The illumination unit designed for taking dimensional measurements is arranged to illuminate the tape in order to measure the tape and the electrode. The illumination unit for foreign substance detection is arranged to illuminate the tape to detect any foreign substances present with the tape and the electrode.
Resumen de: AU2024419457A1
In some implementations, a battery module (104) may include a battery stack comprising a plurality of battery cells (106), one or more module interconnect bus bars (208), and a printed circuit board (PCB) (204) disposed on the battery stack and defining a plurality of openings (214). The PCB (204) may be configured as a carrier for the one or more module interconnect bus bars (208). The plurality of openings (214) may be arranged such that each of the plurality of openings (214) aligns with a terminal of each of the plurality of battery cells (106). The one or more module interconnect bus bars (208) may be attached to the PCB (204) in alignment with the plurality of openings (214) and electrically connected to the plurality of battery cells (106) of the battery stack.
Resumen de: WO2026155577A1
The present invention relates to a method for preparing ferric phosphate (FePO4) and, more specifically, to a method for preparing ferric phosphate (FePO4), the method comprising the steps of: (a) adding an aqueous ammonia solution to a solution containing Fe and P to precipitate impurities and remove the impurities; (b) adding an aqueous hydrogen peroxide solution to a solution containing Fe and P from which impurities are removed to manufacture a hydrogen peroxide mixture; (c) heating the hydrogen peroxide mixture to synthesize FePO4; (d) separating the synthesized FePO4; (e) washing the separated FePO4 with an acidic washing solution having a pH of 1.3 to 1.6; and (f) heat-treating the washed FePO4 at 600 to 800 ℃ for 3 to 17 hours. According to the present invention, there is the effect of providing a method for preparing ferric phosphate (FePO4), which suppresses the generation of sulfides derived from sulfuric acid and basic solutions as in the prior art in a process of synthesizing FePO4 from waste lithium iron phosphate cathode materials, and removes the sulfides generated from the synthesized FePO4 to increase purity.
Resumen de: WO2026154720A1
The purpose of the present invention is to provide a coating device capable of suppressing formation of dragging of a coating liquid at an end portion of a coating film. Specifically, the coating device comprises: a die having a discharge port for discharging a coating liquid toward a prescribed surface of a substrate being conveyed; and a supply valve capable of switching between an open state in which the coating liquid is supplied to the die and a closed state in which the supply of the coating liquid to the die is stopped. The coating device intermittently supplies the coating liquid to the die to discharge the coating liquid from the die by switching the supply valve between the open state and the closed state, and thus intermittently forms a coating film on the prescribed surface of the substrate. The coating device further comprises a discharge amount adjustment mechanism for adjusting the amount of the coating liquid to be discharged from the discharge port. The discharge amount adjustment mechanism is configured to make an adjustment to reduce the amount of the coating liquid to be discharged from the discharge port before the supply valve switches from the open state to the closed state.
Resumen de: WO2026152463A1
Provided in the present application are a battery pack, a battery device and an electric device. The battery pack comprises a casing and a pouch-type battery cell. The casing comprises a first wall, a second wall and a third wall, which are connected in sequence, wherein the first wall is arranged opposite the third wall in a first direction, and in a second direction, a first opening is formed at the end of the casing opposite to the second wall, the second direction being parallel to the direction of thickness of the second wall and perpendicular to the first direction. The pouch-type battery cell is at least partially accommodated in the casing. In the first direction, the first wall and the third wall comprise a first inner surface and a second inner surface facing the pouch-type battery cell respectively, the first inner surface being arranged opposite the second inner surface, and the distance between the first inner surface and the second inner surface gradually increasing in a direction extending from the second wall to the first opening. In this way, the risk of the pouch-type battery cell being scratched and damaged by the casing when being assembled into the casing through the first opening is lowered, and the reliability of the pouch-type battery cell is effectively improved.
Resumen de: DE102025101625A1
Es wird ein Verfahren zum Betreiben eines Fahrzeug-Energiesystems (100) mit einem Brennstoffzellensystem (104) mit mehreren Brennstoffzellenstapeln (106, 106') und mit mindestens einem Energiespeicher (110) zum Speichern von elektrischer Energie vorgeschlagen. Das Verfahren umfasst die Schritte: Erfassen von Informationen betreffend das Fahrzeug-Energiesystem (100), Ermitteln einer zu prädizierenden Zeitdauer (TH) für eine Betriebsstrategie des Fahrzeug-Energiesystems (100) basierend auf den erfassten Informationen, Ermitteln einer prädiktiven Betriebsstrategie zum Betreiben des Fahrzeug-Energiesystems (100) basierend auf der ermittelten zu prädizierenden Zeitdauer (TH), und Betreiben des Fahrzeug-Energiesystems (100) gemäß der ermittelten prädiktiven Betriebsstrategie.
Resumen de: DE102025101573A1
Die Erfindung betrifft eine Druckausgleichsvorrichtung für ein Gehäuse, insbesondere ein Batteriegehäuse, umfassend einen Grundkörper (2) aus Kunststoff, einen Deckel (3) aus Metall, welcher zu einer Außenseite des Gehäuses gerichtet ist, und ein Ventilelement (4) zur Notöffnung, wobei das Ventilelement (4) am Grundkörper (2) angeordnet ist und an einem Dichtsitz (5) am Grundkörper (2) abdichtet, und wobei zwischen dem Grundkörper (2) und dem Deckel (3) eine Pressverbindung (6) ausgebildet ist.
Resumen de: WO2026152470A1
The present application relates to the field of batteries, and discloses a battery cell (10), a battery device (100), and an electric device. The battery cell (10) comprises a casing (2) and an electrode assembly (1). The casing (2) is provided with a pressure relief portion (22111). At least one electrode sheet (11) of the electrode assembly (1) comprises an electrode sheet body (111) and a tab (112). The tab (112) comprises a plurality of bent segments (1121), and a cut-off groove (102) is formed between every two adjacent segments (1121). The orthographic projection of a first groove bottom surface (103) of at least one cut-off groove (102) is located within the orthographic projection of the pressure relief portion (22111). The pressure relief portion (22111) is configured to be at least partially opened during pressure relief to form an exhaust channel, such that at least part of the electrode sheet (11) is discharged out of the casing (2) through the exhaust channel. In this way, directional pressure relief efficiency can be improved.
Resumen de: DE102025101999A1
Die Erfindung betrifft ein Temperiersystem (1) für ein Fahrzeug (50), mit einer zur Verbindung mit einem Fahrzeug-Wärmetauscher (30) ausgebildeten Fluidleiter-Einheit (2), die einen ersten Fluidkanal (4) für einen Zulauf-Fluidstrom (F1) und einen zweiten Fluidkanal (5) für einen Rücklauf-Fluidstrom (F2) aufweist. Um einen effizienten Betrieb eines fahrzeuginternen Wärmekreislaufs zu ermöglichen, ist erfindungsgemäß vorgesehen, dass die Fluidkanäle (4, 5) in einem zusammenhängenden Leitungskörper (3) ausgebildet und durch einen Trennbereich (7) des Leitungskörpers (3) fluidisch getrennt sind, wobei der zweite Fluidkanal (5) den ersten Fluidkanal (4) wenigstens teilweise derart umgibt, dass er zwischen dem ersten Fluidkanal (4) und einer Außenfläche (18) des Leitungskörpers (3) zwischengeordnet ist.
Resumen de: US20260213287A1
A battery health and safety management system and methods of use are provided. The battery health and safety management system may comprise a vehicle and an active sensing and venting module (ASVM) coupled to the vehicle, comprising a fan, one or more sensors, and a venting mechanism. The battery health and safety management system may comprise a battery pack comprising a plurality of battery cells, an insulator positioned between the plurality of battery cells, and one or more capsules positioned within or on the insulator. The one or more capsules may be configured to house a gas and rupture in the event of a battery pack anomaly, releasing the gas. The one or more sensors may be configured to detect the gas after a rupture of one or more of the one or more capsules.
Resumen de: DE102026102042A1
Die vorliegende Erfindung betrifft eine Flüssigkeitskühlvorrichtung und eine elektrische Übertragungsbaugruppe. Die Flüssigkeitskühlvorrichtung umfasst: eine wärmeleitende Komponente (10), die für den thermischen Kontakt mit einer elektrischen Übertragungskomponente (2) verwendet wird; und ein Flüssigkeitskühlrohr (14), das in der wärmeleitenden Komponente (10) installiert ist. Die wärmeleitende Komponente (10) ist dazu ausgelegt, die Wärme der elektrischen Übertragungskomponente (2) an die Kühlflüssigkeit im Inneren des Flüssigkeitskühlrohrs (14) zu übertragen, um die elektrische Übertragungskomponente (2) zu kühlen. In den vorgenannten beispielhaften Ausführungsformen gemäß der vorliegenden Erfindung weist die Flüssigkeitskühlvorrichtung eine einfache Struktur und geringe Kosten auf und kann die elektrischen Übertragungskomponenten effektiv kühlen.
Resumen de: US20260211050A1
0000 In a battery monitoring system, a stimulus circuit applies a stimulus signal to a battery. A sampling circuit synchronously samples a voltage and a current, associated with the battery, at a sampling frequency to obtain a set of voltage values and a set of current values. A storage unit stores multiple datasets, each of which includes a frequency value, an imaginary impedance value, and an SOC value. A processing unit determines an imaginary part of the battery's impedance, corresponding to a stimulus frequency carried in the stimulus signal, based on the voltage values and the current values, and searches the multiple datasets for one or more matched datasets. The frequency value and the imaginary impedance value in the matched dataset “match” the stimulus frequency and the imaginary part, respectively. The processing unit determines a reference value of the battery's SOC based on the SOC value in the matched dataset.
Resumen de: US20260209052A1
An anode active material including silicon-based particles, in which a ratio a/b of oxygen concentration a (% by mass) of the silicon-based particles determined by ONH elemental analysis, as to specific surface area b (m2/g) of the silicon-based particles determined by nitrogen gas adsorption, is a value of 0.03 or less.
Resumen de: WO2026155025A1
Provided is a cylindrical battery comprising a bottomed cylindrical exterior can (15) formed from a metal chiefly comprising a first metal, an electrode body and a nonaqueous electrolyte solution accommodated in the exterior can (15), a sealing body (16) that closes up an opening (15D) in the exterior can (15), a gasket (21) disposed between the exterior can (15) and the sealing body (16), and a dissimilar metal layer (30) which is disposed in at least a part of a region of the inner surface of the exterior can (15) facing the gasket (21) and which is formed from a metal chiefly comprising a second metal different from the first metal, the cylindrical battery being characterized in that the standard electrode potential of the second metal is lower than the standard electrode potential of the first metal.
Resumen de: US20260213194A1
The present disclosure provides a negative electrode active material layer that can increase the initial charge-discharge efficiency of a battery, and a battery comprising the negative electrode active material layer. The negative electrode active material layer 120 of the disclosure comprises negative electrode active material composite particles 10, and a particulate binder 20 which binds together the negative electrode active material composite particles. The negative electrode active material composite particles of the disclosure comprise a carbon material 11 and a tin alloy 12 supported in the carbon material, and have pores 14. The battery 100 of the disclosure has a negative electrode active material layer 120 of the disclosure.
Resumen de: WO2026155015A1
A wiring module 20 is attached to an energy storage element group 11G comprising a plurality of energy storage elements 11, each of which has an electrode terminal 12, stacked in a first direction. The wiring module 20 comprises: a conductive member connected to the electrode terminal 12; a wiring member connected to the conductive member; and a protector 50 in which the conductive member and the wiring member are arranged. The conductive member comprises: a positioning part 35 for positioning the conductive member in the first direction with respect to the electrode terminal 12; a first connecting part 32 connected to the electrode terminal 12; a second connecting part 33 connected to the wiring member; and an engaging part 34A that engages the protector 50. The protector 50 has an engagement-receiving part 54 that engages with the engaging part 34A while also allowing the conductive member to move a prescribed amount in the first direction.
Resumen de: WO2026154162A1
The present invention relates a new class of lithium- and sodium-rich solid-state compounds which additionally contain scandium, which significantly improves the ion conductivity. In addition, the invention relates to compositions comprising a mixture of inventive compounds and to a process for preparation of the inventive compounds. Further, the present invention relates to the use thereof as solid electrolytes or in composite cathodes in primary and secondary electro-chemical energy storage devices. The invention further relates to solid electrolytes and composite cathodes comprising the inventive compounds and compositions.
Resumen de: US20260213286A1
A battery cell includes a battery cell stack including C cathode electrodes including a cathode active material layer arranged on one or both sides of a cathode current collector, A anode electrodes including an anode active material layer arranged on one or both sides of an anode current collector, and S separators, where C, A, and S are integers greater than one. An enclosure surrounds the battery cell stack. A piezoelectric device performing at least one of a sensing and an actuating is arranged in the enclosure and configured to at least one of generate a sensed signal and generate an acoustic signal in response to an applied signal. The piezoelectric device includes a piezoelectric layer made of a fluoropolymer, a first metal layer arranged on one side of the piezoelectric layer, and a second metal layer arranged on an opposite side of the piezoelectric layer.
Resumen de: US20260213209A1
0000 An all-solid-state battery cell includes C cathode electrodes including a cathode active material layer arranged on one or both sides of a cathode current collector, A anode electrodes including an anode active material layer arranged on one or both sides of an anode current collector, and S separators arranged between corresponding ones of the A anode electrodes and the C cathode electrodes. At least one of the cathode active material layer, the anode active material layer, and the S separators includes a solid electrolyte. At least one of the cathode active material layer and the anode active material layer includes a conductive additive including a transition metal nitride. The transition metal nitride is selected from a group consisting of Group IVb nitrides, poly-nary nitrides, and combinations thereof.
Resumen de: US20260209054A1
Active material particles for a lithium ion secondary battery each include a primary phase comprising lithium silicate, silicon nanoparticles disposed in the primary phase, and nitrogen-based species.
Resumen de: US20260209072A1
A cathode active material for a lithium secondary battery according to exemplary embodiments of the present disclosure includes lithium metal oxide particles and a sulfur (S)-containing compound and a sodium (Na)-containing compound present on the surface or inside the lithium metal oxide particles. The surface portion of the lithium metal oxide particle has a concentration gradient of sulfur (S). The absolute value of the slope of the XPS signal of sulfur (S) in the surface portion is 20 cps/nm to 80 cps/nm.
Resumen de: US20260213174A1
Disclosed is a positive electrode active material for sodium-ion batteries that has high capacity. The positive electrode active material for sodium-ion batteries of the present disclosure comprises a Na-containing composite oxide having a chemical composition represented by NaxFeyM1-yOz (wherein 3.0
Resumen de: WO2026155512A1
A secondary battery direct gun power supply system according to embodiments of the present invention comprises: electronic equipment which receives power to function; a battery unit which is connected to the electronic equipment to supply power to the electronic equipment; and a cable unit which connects the battery unit and the electronic equipment to each other to allow current to flow. Accordingly, power can be stably supplied to the electronic equipment.
Resumen de: US20260213328A1
0000 A battery cap assembly is configured to be coupled to an open end of a battery tube and includes a main cap member receiving a threaded journal. A threaded power contact has threads which engage complementary threads on the threaded journal. Rotation of the threaded power contact in a first direction is configured to cause movement of the threaded power contact relative to the threaded journal in a first axial direction. Rotation of the threaded power contact in a second direction opposite the first direction is configured to cause movement of the threaded power contact in a second axial direction opposite the first axial direction. A knob is rotatably coupled to the main cap member and includes a first drive feature engaging a second drive feature on the threaded power contact to transmit rotational motion from the knob to the threaded power contact.
Resumen de: WO2026155044A1
This battery can 10 comprises a bottom part 13, a cylindrical middle part 14 extending from the bottom part 13, and an opening part 16 continuous with the middle part 14. The opening part 16 includes: an end surface 16p formed by a surface 22 of a base material that does not have a plating layer 20; a peripheral wall section 16w continuous with the middle part 14; and a folding section 16t that is a section including the end surface 16p and folded inside the battery can 10 so as to overlap the peripheral wall section 16w. When the thickness of the folding section 16t at the position of the end surface 16p is defined as T1, the thickness of the peripheral wall section 16w at the position closest from the end surface 16p is defined as T2, and the thickness of the middle part 14 is defined as T3, the total of the thickness T1 and the thickness T2 is less than twice the thickness T3.
Resumen de: WO2026152287A1
Provided in the embodiments of the present application are a battery apparatus and an electric device. The battery apparatus comprises a plurality of battery cells (1), a busbar (2) and a sampling assembly (3), wherein the plurality of battery cells (1) are used for providing electric energy; the busbar (2) is used for implementing electrical connection between the plurality of battery cells (1); the sampling assembly (3) is arranged between the battery cells (1) and the busbar (2); and the battery cells (1), the busbar (2) and the sampling assembly (3) are configured to be connected by means of a single welding process. The electric device comprises the battery apparatus. The present application can effectively improve the manufacturing efficiency of a battery apparatus and reduce investment costs.
Resumen de: US20260208556A1
0000 A battery temperature difference between a battery temperature and a desired battery temperature, a power electronics temperature difference between a power electronics temperature and a desired power electronics temperature, and a cabin temperature difference between a vehicle cabin temperature and a desired vehicle cabin temperature are calculated. A power tuning factor is generated to determine an amount of cooling power to apply to a refrigerant and an amount of heating power to apply to a battery coolant and a power electronics coolant. Individual valves are either opened or closed to enable heat exchange between one or more of the battery coolant, the power electronics coolant, the refrigerant, and ambient air outside the vehicle to eliminate the battery temperature difference, the power electronics temperature difference, and the cabin temperature difference using the amount of cooling power and the amount of heating power associated with the power tuning factor.
Resumen de: DE102025107843A1
Eine Superträger-Anordnung für eine Batteriezellenanordnung umfasst eine linke Kühlmitteldurchgangsplatte, die einen linken Abschnitt umfasst, der einen linken gestanzten Kanalabschnitt definiert, einen rechten Abschnitt, der einen rechten gestanzten Kanalabschnitt, eine linke innere Kanalfläche und eine linke äußere Kanalfläche definiert. Eine Superträger-Anordnung umfasst eine rechte Kühlmitteldurchgangsplatte, die einen rechten Abschnitt umfasst, der einen rechten gestanzten Kanalabschnitt definiert, einen rechten Abschnitt, der einen rechten gestanzten Kanalabschnitt, eine rechte innere Kanalfläche und eine rechte äußere Kanalfläche definiert. Ein Kanalprofil, das durch den linken gestanzten Kanalabschnitt der linken Kühlmitteldurchgangsplatte definiert ist, ist ein Spiegelbild des rechten gestanzten Kanalabschnitts der rechten Kühlmitteldurchgangsplatte und ein Kanalprofil, das durch den rechten gestanzten Kanalabschnitt der linken Kühlmitteldurchgangsplatte definiert ist, ist ein Spiegelbild des linken gestanzten Kanalabschnitts der rechten Kühlmitteldurchgangsplatte.
Resumen de: WO2026152341A1
A separator tensioning device (100), comprising a plurality of tension rollers sequentially arranged in the conveying direction of a separator (30). The plurality of tension rollers comprise: at least three first rollers (10a), wherein the most upstream and most downstream tension rollers among the plurality of tension rollers in the conveying direction are both the first rollers, a first rib (101) is formed on the circumferential surface of each first roller, and the first rib extends obliquely in the circumferential direction of the first roller in the axial direction from one end to the other end of the first roller; and second rollers (10b), wherein the circumferential surface of each second roller is a smooth surface. Further disclosed is a winding apparatus (1A) having a separator tensioning device. The first rollers can ensure the uniform tension of the separator throughout the whole process, thereby effectively reducing the probability of the generation of wrinkles; and the second rollers can reduce the probability of excessive adjustment or generation of additional wrinkles when the number of the first rollers is too large, and can also achieve a buffer effect and reduce the wear on the separator, thereby improving the winding efficiency of an electrode assembly by means of the winding apparatus and improving the quality of a finished product.
Resumen de: WO2026152393A1
A battery cell and a preparation method therefor, a battery, and an electrical apparatus. The battery cell comprises a negative electrode sheet. The negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer provided on the surface of at least one side of the negative electrode current collector. The negative electrode film layer comprises a first negative electrode active layer and a second negative electrode active layer. The second negative electrode active layer is located between the negative electrode current collector and the first negative electrode active layer. The first negative electrode active layer comprises a first negative electrode active material, and the second negative electrode active layer comprises a second negative electrode active material. The volume particle size distribution Dv501 of the first negative electrode active material satisfies: Dv501 ≤ 2 μm. The volume particle size distribution Dv991 of the first negative electrode active material satisfies: Dv991 ≤ 5 μm. The volume particle size distribution Dv502 of the second negative electrode active material satisfies: Dv502 ≥ Dv991. The thickness d1 of the first negative electrode active layer and the thickness d2 of the second negative electrode active layer satisfy: d1:d2 = (0.023 to 0.25):1. The technical solution of the present application can improve battery performance in low-temperature environments.
Resumen de: DE102025101768A1
Die Erfindung betrifft ein Verfahren, insbesondere zumindest teilweise computer-implementiertes Verfahren, zur Erkennung eines anomalen Verhaltens von Zellen einer Batterie während oder nach einem stromlosen Zustand (33), wobei für die Batterie ein Batteriemodell ausgeführt wird, umfassend:- Messen von Spannungen der Zellen zu einem ersten Zeitpunkt (32) während des stromlosen Zustands (33) und zu einem zeitlich folgenden zweiten Zeitpunkt (34) während des stromlosen Zustands (32),- Überprüfen (13), ob eine Zelle mit der gemessenen extremen Spannung an dem ersten Zeitpunkt (32) und eine Zelle mit der gemessenen extremen Spannung an dem zweiten (34) Zeitpunkt die gleiche ist,- Signalisieren einer möglichen Anomalie, wenn die Zelle mit der gemessenen extremen Spannung zu dem ersten (32) und dem zweiten (34) Zeitpunkt nicht die gleiche ist.
Resumen de: WO2026152333A1
The present application provides an electrochemical device and an electronic device. The electrochemical device comprises a positive electrode sheet and an electrolyte. The positive electrode sheet comprises a positive electrode current collector, a first material layer and a positive electrode material layer. The first material layer is arranged between the positive electrode current collector and the positive electrode material layer. The first material layer comprises inorganic particles, a first binder, and a first conductive agent. The inorganic particles comprise a metal element. Based on the mass of the first material layer and the positive electrode material layer, the mass percentage of the metal element is M%, wherein 0.3≤M≤4. The electrolyte comprises a first component. The first component comprises at least one of a compound of formula I-1 or a compound of formula II-1. Based on the mass of the electrolyte, the mass percentage of the first component is A%, wherein 40≤A≤85. By means of the described arrangements, the cycling performance of the electrochemical device at high voltage and high temperature can be improved, and the thermal safety performance of the electrochemical device can also be ensured, thereby improving the comprehensive performance of the electrochemical device.
Resumen de: WO2026155693A1
The present disclosure relates to the technical field of batteries, and specifically to a preparation method for a lithium iron phosphate material, a lithium iron phosphate material and use thereof The preparation method for a lithium iron phosphate material includes steps of: (a) performing a grinding treatment on a lithium source, an iron source, a phosphorus source, a carbon source, a fluxing material and a solvent, so as to render a mixed slurry, a ratio of a total mass of the iron source and the phosphorus source to a mass of the fluxing material being 1: (0.001-0.015); (b) performing spray drying on the mixed slurry, a nozzle for the spray drying including a two-fluid nozzle, so as to render a first material; and (c) performing a thermal treatment on the first material, where the thermal treatment includes a first constant-temperature treatment and a second constant-temperature treatment, a temperature T1 of the first constant- temperature treatment ranges from 450 °C to 650 °C, and a temperature T2 of the second constant-temperature treatment ranges from 650 °C to 850 °C. The lithium iron phosphate material obtained by the method in the present disclosure has a high compaction density, a high tap density, high particle strength, a suitable specific surface area, good specific conductance, and excellent processability and electrochemical performance.
Resumen de: WO2026155043A1
A battery 100 according to the present disclosure comprises: a battery can 10 including a bottom portion 13, a cylindrical body portion 14 extending from the bottom portion 13, and an opening 16 following the body portion 14; an electrode assembly 4 housed in the battery can 10; and a sealing body 24 attached to the opening 16. The sealing body 24 includes a lid body 2 and a gasket 3 disposed between the lid body 2 and the opening 16. The opening 16 includes an end surface 16p having an opening end edge 16s of the battery can 10, and the end surface 16p is formed by the surface of a base material on which a plating layer is not provided. The inner peripheral surface 16r of the opening 16 includes a tapered surface 16t inclined with respect to the outer peripheral surface 16q of the opening 16 such that the thickness of the opening 16 decreases toward the opening end edge 16s. A portion of the opening 16 bites into the gasket 24, and the entire surface of the end surface 16p is in contact with and covered by the gasket 24.
Resumen de: DE102025153606A1
Verfahren zur Herstellung eines aktiven Materials der Kathode, umfassend: (a) Bereitstellen von Sekundärpartikeln, die jeweils ein Aggregat aus Primärpartikeln sind; und (b) Infiltrieren von geschmolzenem Kohlenstoff, der durch Schmelzen eines Kohlenstoffmaterials erhalten wird, zwischen die Primärpartikel. Die Primärpartikel enthalten jeweils eine Olivin-Phosphatverbindung, und Kohlenstoff haftet an mindestens einem Teil der Oberfläche eines jeden der Primärpartikel an.
Resumen de: DE102025102369A1
Es wird eine Gasaustausch-Komponente zum Gasaustausch und zur Entgasung des Gehäuses eines elektrischen Energiespeichers beschrieben. Die Gasaustausch-Komponente umfasst einen Grundkörper, wobei der Grundkörper ausgebildet ist, an einer Gehäusewand des Gehäuses des Energiespeichers befestigt zu werden, wobei der Grundkörper ein oder mehreren Öffnungen aufweist, durch die Gas in und/oder aus dem Inneren des Gehäuses strömen kann, wenn der Grundkörper an der Gehäusewand des Gehäuses befestigt ist, und wobei der Grundkörper ausgebildet ist, einen Deckel mit einer Haltekraft zu halten, sodass die ein oder mehreren Öffnungen durch den Deckel fluiddicht abgedichtet werden. Die Gasaustausch-Komponente umfasst ferner den Deckel, der ausgebildet ist, einen Gasaustausch zwischen den ein oder mehreren Öffnungen des Grundkörpers und der Umgebung des Deckels über eine Membran des Deckels zu bewirken, und sich von dem Grundkörper zu lösen, wenn auf den Deckel eine von dem Grundkörper weg gerichtet Kraft einwirkt, die größer als die Haltekraft ist.
Resumen de: US20260213312A1
0000 The present application relates to a secondary battery and a housing thereof. The secondary battery includes a housing, a bare cell, and a top cover assembly. The top cover assembly includes an end cover and lower plastic part provided on the end cover. The end cover seals an opening of the housing. The end cover is provided with an explosion-proof valve through hole for mounting an explosion-proof valve. The lower plastic part is provided with a plurality of exhaust through holes in communication with the explosion-proof valve. An area of the explosion-proof valve through hole accounts for 1.5% to 8% of an area of the end cover. Exhaust areas of orthographic projections of the plurality of exhaust through holes in the end cover account for 1% to 5% of the area of the end cover.
Resumen de: WO2026152450A1
The present application provides a cylindrical battery cell, a battery apparatus, and an electrical device. The cylindrical battery cell comprises a casing, an electrode assembly, and current collecting members. The casing is provided with a pressure relief portion. The electrode assembly comprises two electrode sheets having opposite polarities. Each electrode sheet comprises an electrode sheet body and a tab that are arranged in an axial direction, wherein at least a portion of the electrode sheet body is coated with an active material layer, and the tab is not coated with an active material layer. The current collecting members are arranged in the casing. Each tab comprises a first tab winding portion and a second tab winding portion located on the periphery of the first tab winding portion, each current collecting member is welded to the corresponding second tab winding portion to form a first welding portion, and each current collecting member is not welded to the corresponding first tab winding portion. Each electrode sheet comprises a first electrode sheet winding portion, and each first tab winding portion is formed as a portion of the corresponding first electrode sheet winding portion. On a projection plane perpendicular to the axial direction, the orthographic projections of the first electrode sheet winding portions at least partially overlap the orthographic projection of the pressure relief portion.
Resumen de: WO2026152335A1
The present application provides an electrochemical apparatus and an electronic apparatus. The electrochemical apparatus comprises a positive electrode sheet and an electrolyte, and the positive electrode sheet comprises a positive electrode current collector, a first material layer, and a positive electrode material layer. The first material layer comprises inorganic particles, a first binder, and a first conductive agent. The first material layer is disposed on at least one surface of the positive electrode current collector, and the positive electrode material layer is disposed between the positive electrode current collector and the first material layer. The ratio of the length of the first material layer to the length of the positive electrode current collector is X%, where 50≤X≤98. The electrolyte comprises a first component and a second component. The first component comprises at least one of a compound represented by formula I-1 or a compound represented by formula II-1, and the second component comprises a compound represented by formula III. Based on the mass of the electrolyte, the mass percentage content of the first component is A%, and the mass percentage content of the second component is B%, where 40≤A+B≤90. By means of the above configuration, the cycling performance of the electrochemical apparatus under high voltage and high temperature conditions can be improved while thermal safety performance is also maintained.
Resumen de: DE102025101892A1
Eine Batteriezelle (1) mit mindestens einem Batterieelement und einem das mindestens eine Batterieelement umgebenden Gehäuse (2), wobei das Gehäuse (2) zumindest aus einem Metall ausgestaltet ist und zumindest eine erste Sollbruchstelle (11a) aufweist, ist dadurch gekennzeichnet, dass die erste Sollbruchstelle (11a) als Vertiefung (13) oder Durchgangsöffnung in einer Wandung des Gehäuses (2) ausgebildet ist, wobei die Vertiefung (13) oder Durchgangsöffnung mit einem Polymer (12) ausgefüllt ist.
Resumen de: WO2026152452A1
A battery cell (1100), a battery device (1000) and an electric device. The battery cell (1100) comprises a casing (100), an end cover (200) and a protective film (300), wherein the casing (100) is configured with a first opening (110); the end cover (200) covers the first opening (110), and the end cover (200) comprises an end cover body (210) and a protrusion (220); the protrusion (220) protrudes from the end cover body (210) along the side facing away from the casing (100); and the protective film (300) at least partially surrounds the joint between the end cover (200) and the casing (100), and the protective film (300) comprises a first protective portion (311) and a second protective portion (312), the first protective portion (311) being arranged on the side of the end cover body (210) facing away from the interior of the battery cell (1100), the second protective portion (312) being arranged on the side of the protrusion (220) facing away from the interior of the battery cell (1100), and in the direction extending from the outer periphery of the end cover (200) towards the inner side of the end cover (200), the maximum dimension d1 of the first protective portion (311) being greater than the maximum dimension d2 of the second protective portion (312).
Resumen de: WO2026155205A1
A positive electrode for a nonaqueous electrolyte power storage element according to one embodiment of the present invention is provided with a positive electrode base material and a positive electrode active material layer that is directly laminated on the positive electrode base material. The positive electrode active material layer contains a conductive agent and a polyanion compound including elemental iron. The average particle size of the polyanion compound is 2.5 µm or less. In the surface of the positive electrode active material layer facing the positive electrode base material, the existence ratio of the conductive agent with respect to all components in the positive electrode active material layer is 30-90%.
Resumen de: WO2026154733A1
The purpose of the present invention is to provide a powder film formation apparatus capable of forming a powder film at a prescribed position on a substrate. Specifically provided is a powder film formation apparatus comprising a supply unit for supplying and depositing a powder onto a substrate, and a pressing mechanism for pressing and compressing a portion of the powder deposited on the substrate, thereby forming a film of the powder and pressure-bonding said film to the substrate, wherein the pressing mechanism is formed so as to press the powder deposited on the substrate at a prescribed position on the substrate, and is provided with a removal mechanism for removing powder present in an unpressed region on the substrate where pressing was not performed by the pressing mechanism.
Resumen de: WO2026152332A1
Provided are a battery cell (81), a battery device (80), and an electrical device. The battery cell (81) comprises: a casing (10), comprising a plurality of wall bodies enclosing an accommodating cavity (11), wherein at least one of the plurality of wall bodies is provided with a through-hole (12) in communication with the accommodating cavity (11), and the wall body among the plurality of wall that is provided with the through-hole (12) is defined as a first wall (13); an electrode assembly (20), located within the accommodating cavity (11); an electrode terminal (30), disposed in the through-hole (12) and electrically connected to the electrode assembly (20); a first insulating member (41), disposed on the side of the first wall (13) adjacent to the electrode assembly (20) and fixedly connected to the first wall (13); and a second insulating member (50), at least partially disposed on the side of the first wall (13) adjacent to the electrode assembly (20), and separately connected to the first insulating member (41) and the electrode terminal (30).
Resumen de: US20260209045A1
0000 An anode active material for a secondary battery includes porous silicon particles and carbon-based particles surrounding at least a portion of the porous silicon particles, wherein the porous silicon particles include mesopores therein configured to accommodate volume expansion of silicon during charge and discharge, and the anode active material may have a controlled pore volume and improved structural stability.
Resumen de: US20260213152A1
0000 An electrode sheet manufacturing apparatus according to an embodiment of the present disclosure may include: a mixing unit mixing powder particle-type mixed powder including an electrode active material to form kneading powder; and a press unit connected to the mixing unit and pressurizing the kneading powder to form an electrode sheet, and the mixing unit may include: a housing including a mixing space; and a screw member disposed in the mixing space and including a plurality of conveying disk members and a plurality of disk kneading members provided with a plurality of unit disk kneading members, and a kneading ratio between a length of the screw member and a length of the plurality of unit disk kneading members is 30% or more and 50% or less.
Resumen de: WO2026152468A1
The present application relates to the field of batteries, and discloses a cylindrical battery cell (10), a battery device (100), and an electric device. The cylindrical battery cell (10) comprises a casing (2) and an electrode assembly (1). The casing (2) is provided with a pressure relief portion (22111). At least one electrode sheet (11) of the electrode assembly (1) comprises an electrode sheet body (111) and a tab (112). The tab (112) comprises a first tab winding portion (1121) and a second tab winding portion (1122), and the second tab winding portion (1122) extends beyond the first tab winding portion (1121) in a direction away from the electrode sheet body (111). The orthographic projection of the first tab winding portion (1121) is located within the orthographic projection of the pressure relief portion (22111). The pressure relief portion (22111) is at least partially opened during pressure relief to form an exhaust channel, and at least part of the electrode sheet (11) is discharged by means of the exhaust channel. In this way, directional pressure relief efficiency can be improved.
Resumen de: WO2026154408A1
A fluid-containing assembly is described, as well as a method for sealing the fluid-containing assembly using an elastic sealing tape.
Resumen de: WO2026155107A1
The present invention provides a slurry composition for a power storage device, the slurry composition enabling the production of a power storage device electrode which achieves excellent charge/discharge cycle characteristics by having a reduced internal resistance, while achieving excellent charge/discharge durability characteristics by having improved adhesion. A slurry composition for a power storage device according to the present invention contains a carboxymethyl cellulose (A), a polymer (B), and a liquid medium (C), wherein: the viscosity of a 1% aqueous solution of the carboxymethyl cellulose (A) as measured using a Brookfield viscometer under a condition of 25°C is 30,000 mPa∙s or more; when the total of repeating units contained in the polymer (B) is taken as 100 mass%, the polymer (B) contains 5-75 mass% of a repeating unit (b1) that is derived from an aromatic vinyl compound and 1-10 mass% of at least one repeating unit selected from the group consisting of a repeating unit (b2) that is derived from an unsaturated carboxylic acid and a repeating unit (b3) that is derived from a compound having a sulfonic acid group; and the swelling ratio is 120 mass% to 250 mass% inclusive when the polymer (B) is immersed in a solvent that is composed of propylene carbonate and diethyl carbonate at a volume fraction of 1:1 under conditions of 70°C and 24 hours.
Resumen de: US20260214781A1
A printed circuit board includes a circuit layer including a base film and a conductive layer on at least one surface of the base film, a first cover layer on one surface of the circuit layer, and a flame-retardant layer between the circuit layer and the first cover layer.
Resumen de: US20260213318A1
Disclosed are a battery apparatus and an electric device. A U-shaped enclosing shell is adhesively connected to a case through an adhesive layer, and busbar supports are disposed on the U-shaped enclosing shell and are each connected to the U-shaped enclosing shell through a connecting part. The U-shaped enclosing shell is provided with a pressure relief part, a shear strength of the connecting part is greater than a first preset value, where the first preset value is greater than or equal to 0.1 Mpa, and an adhesive strength of the adhesive layer is greater than a second preset value, where the second preset value is greater than or equal to 1 Mpa.
Resumen de: WO2026155490A1
According to exemplary embodiments, a battery cell assembly is provided. The battery cell assembly may comprise: a plurality of battery cells arranged in a first direction of a battery; and first and second side beams spaced apart from each other in the first direction with the plurality of battery cells interposed therebetween. Each of the first and second side beams can include: first and second vertical ribs perpendicular to the first direction; and first and second horizontal ribs for connecting the first and second vertical ribs. The first vertical rib can be closer to the battery cells than the second vertical rib. The first horizontal rib can be on top of the second horizontal rib. Each of the first and second side beams can include pin holes positioned in each of the first and second horizontal ribs. Each of the pin holes can have a width in the first direction and a width in a second direction perpendicular to the first direction. The width in the second direction can be greater than the width in the first direction.
Resumen de: US20260213150A1
0000 A battery management system according to the present disclosure includes at least: a three-phase inverter configured to be driven by electric power from a lithium-ion secondary battery; a control unit configured to heat the lithium-ion secondary battery by supplying, to the lithium-ion secondary battery, an alternating current signal of a predetermined frequency generated by the three-phase inverter; and an impedance detection unit configured to detect, from an attenuation characteristic of a high-frequency signal in the lithium-ion secondary battery, a value of the real part of an alternating current impedance used for calculation of the amount of Li deposition. The impedance detection unit is configured to detect a peak voltage of the alternating current signal supplied from the three-phase inverter to the lithium-ion secondary battery.
Resumen de: WO2026153062A1
The present application relates to the technical field of energy storage management, and discloses a thermal management method for an energy storage system, and an energy storage system. The thermal management method for an energy storage system comprises: acquiring battery cell temperature data and working state data of each battery cluster; and on the basis of the battery cell temperature data and/or the working state data, adjusting a flow direction of a refrigerant by means of a reversing device. The flow direction of the refrigerant flowing through each battery cluster can be managed by means of the reversing device, and on the basis of the battery cell temperature data and/or the working state data of each battery cluster, differences between the battery clusters can be determined. Thus, a battery cluster different from the other battery clusters is processed on the basis of the reversing device, thereby changing the flow direction of the refrigerant flowing through the battery cluster, reducing temperature differences between the battery clusters and thermal management power consumption, and improving thermal management performance.
Resumen de: WO2026153268A1
Provided in the embodiments of the present application are a battery cell, a separator, a battery device, and an electrical device. The battery cell comprises a separator, which is disposed between a negative electrode sheet and a positive electrode sheet. The separator comprises: a porous base film; a first coating, which is disposed on the side of the porous base film close to the negative electrode sheet; and a second coating, which is disposed on the side of the porous base film close to the positive electrode sheet. The separator satisfies: ε13>ε2, wherein ε1 represents the average porosity of the first coating, ε2 represents the average porosity of the second coating, ε3 represents the average porosity of the porous base film, and ε13 represents the average porosity of the first coating and the porous base film. The battery cell of the present application achieves good reliability and prolongs the cycle life of the battery cell.
Resumen de: WO2026153395A1
The present utility model relates to the technical field of new energy vehicle accessories, and more specifically, to a buffer plate configured for connecting to a battery bottom protective plate, and a battery pack. The buffer plate comprises a foam material layer and protective layers which are respectively connected to the upper and lower surfaces of the foam material layer, wherein each protective layer comprises a plurality of continuous fiber-reinforced resin composite material layers, and the projections on the horizontal plane of the fiber lengthwise directions of two adjacent continuous fiber-reinforced resin composite material layers have an included angle therebetween. Because the projections on the horizontal plane of the fiber lengthwise directions of two adjacent continuous fiber-reinforced resin composite material layers have an included angle therebetween, fibers in each continuous fiber-reinforced resin composite material layer form a dense, multi-angle interwoven structure. When the buffer plate is subjected to an external impact, energy can be absorbed by means of interlayer shearing force and delamination, thereby avoiding damage and collapse, and effectively protecting the bottom protective plate and a tray. The battery pack comprises the buffer plate, and therefore has a better impact resistance and waterproof performance.
Resumen de: US20260213191A1
The positive electrode active material includes olivine lithium manganese iron phosphate. The olivine lithium manganese iron phosphate includes a first dopant at a manganese-iron site. The first dopant is at least one selected from the group consisting of tungsten and molybdenum. The first site occupancy of the first dopant is 1% to 10% at the manganese-iron site.
Resumen de: WO2026153578A1
A battery housing, a battery cell and a battery pack. The battery housing comprises a first plate body; a second plate body, which is arranged opposite the first plate body; a third plate body, which is arranged between the first plate body and the second plate body; and a fourth plate body, which is arranged between the first plate body and the second plate body and is arranged opposite the third plate body, wherein the first plate body, the second plate body, the third plate body and the fourth plate body form an accommodating structure having a hollow interior and two open ends; the area of the third plate body is greater than that of the first plate body and that of the second plate body; the area of the fourth plate body is greater than that of the first plate body and that of the second plate body; the thickness of the wall of the first plate body is greater than that of the wall of the third plate body and that of the wall of the fourth plate body; and the thickness of the wall of the second plate body is greater than that of the wall of the third plate body and that of the wall of the fourth plate body.
Resumen de: US20260211058A1
0000 Provided is a battery diagnosis apparatus and a battery diagnosis method. The battery diagnosis apparatus includes a data obtaining unit configured to obtain a first target full-cell profile representing a correspondence between a capacity factor and a voltage of a target cell while a first electric stimulation is being applied to the target cell, and a control circuit configured to generate an estimated full-cell profile based on the first target full-cell profile and an overpotential profile. The control circuit determines a first performance factor group as a primary estimation result for charge/discharge performance of the target cell by applying a cell diagnosis logic to the estimated full-cell profile. The control circuit determines a second performance factor group as a secondary estimation result for the charge/discharge performance of the target cell by applying a factor correction model to the first performance factor group. The second performance factor group includes an estimation result of a positive electrode loading amount of the target cell.
Resumen de: WO2026153265A1
A negative electrode material, a negative electrode sheet and a secondary battery. The negative electrode material comprises an inner core and a coating layer arranged on at least part of the surface of the inner core, wherein the inner core comprises a matrix and an active material, and at least part of the active material is arranged inside the matrix. The atomic percentage content of oxygen on the surface of the negative electrode material is A1%; the atomic percentage content of oxygen in a surface layer of the negative electrode material is A2%; the atomic percentage content of oxygen in an inner layer of the negative electrode material is A3%; and A1 is greater than A2, and 2≤A3≤10. The negative electrode sheet or the secondary battery that uses the negative electrode material has a relatively high reversible specific capacity and initial Coulombic efficiency, and a good cycling stability.
Resumen de: WO2026153085A1
The present invention provides a negative electrode material for an all-solid-state battery, and an all-solid-state battery. The negative electrode material comprises a lithium alloy phase serving as a framework and a lithium metal phase that fills the framework, wherein the mass percentage content of the lithium metal phase is 60%-80%. The all-solid-state battery comprises a positive electrode, a solid-state electrolyte layer, and a negative electrode, wherein the negative electrode uses the negative electrode material. The negative electrode material for an all-solid-state battery of the present invention has a high Young's modulus; and when the negative electrode material is used as a negative electrode, changes in the volume of the all-solid-state battery are precisely controlled, thereby realizing stable cycling of the battery within a wide pressure range under high current and high capacity conditions.
Resumen de: US20260213333A1
0000 A rechargeable energy storage system (RESS) for a vehicle having thermal propagation vent gas management includes at least one battery module disposed within the RESS. The at least one battery module includes a battery module tray, a plurality of individual battery cells disposed within the battery module tray, a battery module cover arranged adjacent to a first side of the battery module tray, and a thermal propagation (TRP) hat arranged adjacent to a venting side of the plurality of individual battery cells. The TRP hat includes a diverter plate having a plurality of vent gas diverters, and a mica burst sheet arranged adjacent to the diverter plate. The TRP hat and the battery module cover define an expansion chamber.
Resumen de: WO2026153176A1
A battery device (100) and a vehicle (200). The battery device (100) comprises a first plate (10), a second plate (20), battery cells (30) and support members (40), wherein the first plate (10) and the second plate (20) are arranged opposite each other in a first direction; the battery cells (30) are arranged between the first plate (10) and the second plate (20); the support members (40) extend in the first direction; the support members (40) are located between the first plate (10) and the second plate (20); and the support members (40) are arranged closer to the second plate (20) than the battery cells (30).
Resumen de: WO2026152574A1
The present application belongs to the technical field of batteries. Provided are a battery cell assembly, a battery module, a battery pack and an electric device. The battery cell assembly comprises: a battery cell having two side planes opposite each other in a first direction and two main planes opposite each other in a second direction; elastic members arranged on the two main planes of the battery cell and configured to buffer the expansion of the battery cell during charging; U-shaped support members arranged at two opposite ends of the battery cell in the first direction; and a fixing structural member arranged around the outer sides of the battery cell and the U-shaped support members. Each U-shaped support member comprises: two U-shaped support legs, each of which extends in the first direction to cover a portion of an elastic member; and a U-shaped bending portion configured to connect the two U-shaped support legs, the two side planes of the battery cell being surrounded by the U-shaped bending portions. The technical problem to be solved is how to protect the internal structure at the edge of the battery cell from being damaged in a wound structure. The technical effect is to protect the internal structure at the edge of the battery cell from being damaged.
Resumen de: WO2026153319A1
The present application discloses a battery pack and a vehicle. The battery pack comprises: a battery cell assembly, wherein the battery cell assembly comprises a plurality of battery cells; a first heat dissipation assembly, wherein the first heat dissipation assembly is arranged on one side of the battery cell assembly in a third direction; and a second heat dissipation assembly, wherein the arrangement position of the second heat dissipation assembly at least comprises any one of the following: the other side of the battery cell assembly in the third direction, at least part of the circumferential side surface of the battery cell assembly, and a position between at least some adjacent battery cells. The third direction is the height direction of the battery cells. By additionally providing the second heat dissipation assembly in the battery pack to dissipate heat from at least one position among the side surface of the battery cell assembly, one side in the third direction, and the position between adjacent battery cells, the contact area between a cooling system and the battery cell assembly is increased, that is, the heat exchange area between the battery cell assembly and the cooling system is increased, thereby enhancing the cooling effect on the battery cell assembly, enabling the battery cell assembly to satisfy temperature adjustment requirements, and ensuring the service life of the battery pack.
Resumen de: WO2026152268A1
The present application provides a battery cell, a battery device, and an electric device. The battery cell comprises a casing and an electrode assembly, wherein the electrode assembly is accommodated in the casing, the electrode assembly is in a wound configuration, the electrode assembly has a straight region and bent regions, and the bent regions are provided at the ends of the straight region. The electrode assembly comprises a positive electrode sheet and a negative electrode sheet, and the positive electrode sheet and the negative electrode sheet have opposite polarities. The positive electrode sheet has a first terminating end, and the first terminating end is located at the end of the outermost ring of the positive electrode sheet. The negative electrode sheet has a second terminating end, and the second terminating end is located at the end of the outermost ring of the negative electrode sheet. At least one of the first terminating end and the second terminating end is provided in the bent region. The battery cell provided in the present application is conducive to reducing the risk of purple spots or lithium plating on electrode sheets.
Resumen de: WO2026154468A1
A cooling system for electronic components comprises a temperature sensor, a controller, and a flow management device, facilitating fluid release in response to temperature thresholds. The system includes features like a backup power source, mixing motor, and thermal insulation chamber to enhance heat management efficiency and ensure operational reliability.
Resumen de: WO2026155285A1
The present invention relates to finishing tapes for all-solid-state rechargeable batteries and all-solid-state rechargeable batteries comprising same, each finishing tape comprising a base layer and an adhesive layer disposed on the base layer, wherein at least one of the base layer and the adhesive layer contains fire-extinguishing capsules in an amount of 20 wt% to 50 wt%.
Resumen de: WO2026155472A1
The present invention relates to a battery pack and an electronic device comprising same, and, to a battery pack and an electronic device comprising same, which are capable of: detecting, when moisture is condensed in the battery pack, moisture condensation before an accident occurs; performing such a moisture detection function at low cost for a long period of time; inducing the condensed moisture to a location where an electrical short circuit accident is less likely to occur; removing the condensed moisture; and protecting parts vulnerable to insulation, thereby improving electrical stability. The battery pack according to the present invention comprises: a battery unit; a case unit for accommodating the battery unit therein; a moisture condensation unit, which is a portion where moisture is condensed in the case unit; and a sensor unit for sensing the moisture condensed in the moisture condensation unit, wherein the sensor unit includes: a moisture absorption member which is provided in the moisture condensation unit and which changes state if the moisture is absorbed; and a sensor unit for sensing the presence or degree of the moisture through the moisture absorption member of which the state is changed by absorbing the moisture.
Resumen de: WO2026152299A1
The present application provides a battery cell, a battery device, an electric apparatus, and an energy storage device. The battery cell comprises an end cover, an electrode assembly, and a casing; the casing is provided with an opening; the casing comprises a first side wall, and the first side wall is provided with a pressure relief component; and the end cover covers the opening, and the first side wall is arranged adjacent to the end cover. In this way, the pressure relief component and electrode terminals are located on different walls, thereby facilitating the improvement of energy density. The first side wall further comprises a protective protrusion protruding toward the electrode assembly, and the protective protrusion is at least partially disposed on the side of the pressure relief component close to the end cover. When the electrode assembly is loaded into the casing, the protective protrusion can prevent the electrode assembly from coming into direct contact with the pressure relief component, thereby reducing the possibility of the electrode assembly being scratched by the pressure relief component, improving the performance of the battery cell.
Resumen de: WO2026153113A1
The present application relates to the technical field of composite metals, and provides a composite metal assembly, a pole, a cover plate assembly, and a battery cell. The composite metal assembly comprises a first metal member, a second metal member, and a metal connecting member provided between the first metal member and the second metal member; the metal connecting member is configured to connect the first metal member and the second metal member. The first metal member, the second metal member, and the metal connecting member are made of different materials, the metal connecting member comprises a plurality of connecting portions, and the plurality of connecting portions are spaced apart from each other.
Resumen de: DE102025101592A1
Die vorliegende Erfindung betrifft ein Ladeverfahren (200) zum Laden (208) einer Speichervorrichtung (110) für elektrische Energie für ein Kraftfahrzeug (100) durch ein Ladesystem (10), das Ladeverfahren (200) umfassend:- Erfassen (202) zumindest einer Regelgröße (112) der Speichervorrichtung (110) und/oder des Kraftfahrzeugs (100) durch eine Erfassungsvorrichtung (20) des Ladesystems (10),- Bereitstellen (204) von zumindest einer Nutzungsvariable (114) der Speichervorrichtung (110) und/oder des Kraftfahrzeugs (100) durch eine Datenschnittstelle (30) des Ladesystems (10),- Prädiktion (206) von zumindest einem Systemzustand (116) der Speichervorrichtung (110) und/oder des Kraftfahrzeugs (100) durch eine Logikvorrichtung (40) des Ladesystems (10) auf Grundlage der zumindest einen erfassten Regelgröße (112) und der zumindest einen bereitgestellten Nutzungsvariable (114),- Laden (208) der Speichervorrichtung (110) für elektrische Energie, wobei das Laden (208) mittels einer Regelvorrichtung (50) des Ladesystems (10) auf Grundlage des zumindest einen prädiktiven Systemzustands (116) geregelt wird.Ferner betrifft die Erfindung ein Ladesystem (10) und ein Kraftfahrzeug (100).
Resumen de: WO2026155470A1
According to exemplary embodiments, a battery pack is provided. The battery pack comprises: a pack housing including a base plate and a sidewall perpendicular to the base plate; a lead coupled to the pack housing; a plurality of battery cell assemblies on the base plate and each including an integrated circuit assembly; a communication device configured to communicate with an antenna of the integrated circuit assembly of each of the battery cell assemblies; and a junction box assembly connected to the communication device, wherein the junction box assembly includes a power connector configured to output power of the plurality of battery cell assemblies.
Resumen de: US20260213355A1
0000 The present disclosure relates to a battery assembly comprising: a plurality of battery cells arranged along a stacking direction; a receiving case that receives the plurality of battery cells; a busbar located at a side surface of the plurality of battery cells inside the receiving case and disposed along the stacking direction; a busbar terminal portion protruding from the busbar inside the receiving case and bent to surround at least a portion of the plurality of battery cells; and a circuit portion disposed on the same plane as one bent end of the busbar terminal portion and electrically connected to the busbar terminal portion.
Resumen de: WO2026154742A1
The present disclosure provides an electrolyte composition containing a polymer, inorganic particles, and an organic solvent. When a specific surface area of the inorganic particles as measured by a multipoint BET method using N2 as an adsorption gas is defined as BET(N2) and a specific surface area of the inorganic particles as measured by a multipoint BET method using H2O as an adsorption gas is defined as BET(H2O), the ratio of the BET(H2O) with respect to the BET(N2) is not less than 0.30.
Resumen de: WO2026152354A1
The present application provides a battery cell, a battery device, and an electric device. The battery cell is a metal battery or a sodium-ion battery. The battery cell comprises a casing, an electrode assembly, and a support member. The casing comprises a housing and a cover plate; the housing comprises side walls; the side walls define an accommodating cavity having an opening in a first direction; and the cover plate covers the opening and seals the accommodating cavity. The electrode assembly is arranged in the accommodating cavity. The support member is used for supporting the electrode assembly; the support member is arranged between the electrode assembly and the side walls and a cavity structure is formed between the electrode assembly and the side walls; and the cavity structure is communicated with the space where the electrode assembly is located.
Resumen de: WO2026155286A1
The present invention relates to a polymer pad for an all-solid-state battery, an all-solid-state battery system comprising same, and a manufacturing method therefor. More specifically, the polymer pad for an all-solid-state battery comprises crosslinked polyurethane having a melting point (Tm) of 170°C or higher in a differential scanning calorimetry (DSC) analysis, and has a thickness of 1 mm to 1.5 cm.
Resumen de: US20260213564A1
The present disclosure relates to a charging and discharging apparatus and a control method thereof, the charging and discharging apparatus including: a jig for supporting a battery cell; a temperature sensor disposed at one side of the jig and configured to measure a temperature of the battery cell or a temperature of a region adjacent to the battery cell; a charging and discharging channel electrically connected to the battery cell; and a control unit configured to control a voltage and a current of the battery cell through the charging and discharging channel to charge or discharge the battery cell and to calculate an electric capacity of the battery cell.
Resumen de: WO2026154562A1
The present disclosure provides a means capable of reducing cell resistance in a lithium-deposition-type lithium secondary battery equipped with a negative electrode intermediate layer. Provided is a lithium secondary battery comprising a power generation element which has: a positive electrode having a positive electrode active material layer containing a positive electrode active material; a negative electrode which has a negative electrode current collector and in which lithium metal is deposited during charging; a solid electrolyte layer interposed between the positive electrode and the negative electrode, and containing a solid electrolyte; and a negative electrode intermediate layer that is interposed between the negative electrode current collector and the solid electrolyte layer, and contains at least one type of particle selected from the group consisting of metal particles and carbon particles. Therein, the surface roughness (Ra) of a surface X of the negative electrode current collector which faces the negative electrode intermediate layer is 0.2μm or more.
Resumen de: US20260213172A1
The present disclosure provides a method for manufacturing a high power electrode for an electrochemical cell is disclosed. The method involves mixing silicon oxide (SiOx), graphite, binders, additives, and conductive diluents to form an admixture. A water-based solvent, in the range of 40 to 50% by weight, is added to the admixture to create a slurry with a viscosity exceeding 3000 mPa·s. The slurry is uniformly coated onto a conductive foil to form a layer of coat. The coated electrode is then dried at a controlled high temperature ranging from 40° C. to 120° C. to ensure consistent coating, adherence, and optimized porosity. Subsequently, the dried electrode is calendared by applying pressure to reduce the thickness of the coated layer to 70 μm to 90 μm. This process results in a high-power electrode with enhanced mechanical stability, uniform thickness, and optimized pore structure.
Resumen de: WO2026155487A1
The technical concept of the present invention provides a battery pack comprising: a pack frame; and a battery module provided in the pack frame. The battery module comprises: a module housing including a first end plate and a second end plate; a plurality of battery cells provided between the first end plate and the second end plate and including a first battery cell and a second battery cell; an inter-cell pad provided between the first battery cell and the second battery cell; a first insulating filling layer at least partially filling a space between the first battery cell and the first end plate; and a second insulating filling layer at least partially filling a space between the second battery cell and the second end plate.
Resumen de: US20260213306A1
0000 A pouch battery cell and related battery device, energy storage device, and electric device are provided. The pouch battery cell includes a film shell and an electrode assembly. The film shell has a wall thickness of 0.2 mm or less and comprises two film parts connected in a first direction. Each film part defines an accommodating groove, and the grooves are arranged opposite to each other to form an accommodating cavity. The electrode assembly is disposed within the cavity. A dimension of the pouch battery cell in the first direction is defined as a first dimension, and a dimension of each film part in the first direction is a second dimension. The first dimension ranges from 5 mm to 70 mm, and a ratio of the second dimension to the first dimension is between 0.4 and 0.6.
Resumen de: US20260213153A1
The present disclosure relates to a charging method in an activation process of a lithium secondary battery. The charging method in an activation process of a lithium secondary battery includes a measurement step of measuring admittance values according to a state of charge of a pre-charged lithium secondary battery, a calculation step of converting each of the admittance values and calculating converted values, a determination step of determining a second charge rate by multiplying each of the converted values by a first charge rate, and a charging step of charging the lithium secondary battery by applying the second charge rate.
Resumen de: US20260210785A1
A venting pressure measuring apparatus measures pressure at which a venting cover of a battery module ruptures, and includes: a pressure jig that allows the venting cover to be placed and supported thereon, and is provided with a pressure space formed to apply pressure to the venting cover; and a top jig that presses the venting cover into close contact with the pressure jig, and is provided with a through hole formed at a position corresponding to the pressure space. A gas flow when venting occurs in the battery module is simulated by shapes of the pressure space and the through hole.
Resumen de: US20260213310A1
0000 A battery cell, a battery apparatus, and an electric device are provided. The battery cell includes a flexible housing and an electrode assembly. The electrode assembly is disposed in the flexible housing, where the flexible housing has a side surface opposite a large surface of the electrode assembly, and a circumferential surface avoiding the large surface, the circumferential surface and the side surface are connected along circumference of the electrode assembly, and at least the circumferential surface is provided with a pressure relief region.
Resumen de: US20260213331A1
0000 A thermal runaway propagation mitigation system for a prismatic battery cell includes a plurality of louvres. The louvre provides vent control assistance to direct effluent and other particulates on a particular path while also providing sidewall protection for adjacent prismatic battery cells from particulates during a thermal runaway event. The louvre comprises a plurality of terminal windows that align with terminals on the prismatic battery cell and a thermal vent which detaches under an application of pressure. In an embodiment, the louvre is a one-piece “L” shaped design with a top face and a side face. In another embodiment, the louvre is an overlapping design that comprises two “L” shaped pieces. In another embodiment, the louvre is a one-piece “U” shaped design with a top face and two side faces. In another embodiment, the louvre is a two-piece “U” shaped design with a top face and two side faces.
Resumen de: WO2026155639A1
The present invention relates to a preparation method for a batch of the lithium iron phosphate (LiFePO4) cathode material. The method consists in coating the surface of the silicon (Si) particles with lithium iron phosphate (LiFePO4) particles to form a C-LiFePO4-Si composite. A large number of LiFePO4-Si interfaces are formed at the contact points between the LiFePO4 and Si particles, where the Si-O oxygen-containing particles are generated at the interfaces, acting as an additional lithium store, thereby contributing to additional capacity. The method also uses co-doping of the Fe site and the Li site to suppress Fe/Li antisite defects, further improving the initial charge capacity. In addition, by using a precursor of the LiFePO4 ratio, the LiFePO4 cathode material prepared by this method makes it possible to achieve an initial charge capacity of greater than 166 mAh/g. The invention also relates to the LiFePO4 cathode material, to a lithium-ion battery that uses this cathode and to a lithium-ion battery that uses this cathode material.
Resumen de: WO2026155385A1
The present invention relates to a separator for an electrochemical device, the separator comprising an inorganic heat-resistant coating layer, wherein the coating layer comprises both cubic boehmite and platelet-shaped boehmite as inorganic particles, thereby improving the stability of the separator while achieving low resistance.
Resumen de: WO2026155612A1
A battery diagnosis device according to one embodiment disclosed in the present specification may comprise: an interface for acquiring a plurality of open circuit voltage (OCV) data for a battery unit; and one or more processors for acquiring a plurality of estimated states of charge (SOC) corresponding to at least a part of the OCV data, acquiring a plurality of estimated states of health (SOH) corresponding to at least a part of the plurality of estimated SOC, and diagnosing a degree of occurrence of cathode capacity loss of the battery unit on the basis of a specific estimated SOH satisfying a threshold SOH condition among the estimated SOH.
Resumen de: WO2026152465A1
The present application relates to the field of batteries, and discloses a cylindrical battery cell (100), a battery device (1000), and an electrical device. The cylindrical battery cell (100) comprises a casing (20) and an electrode assembly (10). The casing (20) is provided with a pressure relief portion (22111). The electrode assembly (10) has a winding structure and comprises two electrode sheets (1). At least one of the electrode sheets (1) comprises an electrode sheet main body (11) and a tab (12) arranged in a first direction (Z). The tab (12) comprises a plurality of tab winding portions (121) distributed along a winding direction of the electrode assembly, and a first cut-off groove (102) extending for at least one winding turn is provided between two adjacent tab winding portions (121). The first cut-off groove (102) passes through an end surface of the tab (12) away from the electrode sheet main body (11). In this way, the efficiency of directional pressure relief can be improved.
Resumen de: US20260212747A1
0000 A warning system for a battery pack of a vehicle and a method for operating the same includes melting a phase change material in a phase change housing above a temperature threshold. In response to melting, extending a push rod from the housing. The method further includes electrically coupling a static contactor and a dynamic contactor. In response to electrically coupling, an alarm is activated.
Resumen de: WO2026152476A1
The present application relates to the field of batteries, and discloses a cylindrical battery cell (10), a battery device (100), and an electric device. The cylindrical battery cell (10) comprises a casing (2) provided with a pressure relief portion (22111) and an electrode assembly (1) provided with a central hole (101). At least one electrode sheet (11) of the electrode assembly (1) comprises a tab (112). The tab (112) comprises a plurality of cut pieces (1121), at least one cut piece (1121) is bent towards the central hole (101), at least one cut piece (1121) is bent away from the central hole (101), a cut-off groove (102) is provided between any two adjacent cut pieces (1121), and the orthographic projection of the central hole (101) and the orthographic projection of a first groove bottom surface (103) of at least one cut-off groove (102) are both located within the orthographic projection of the pressure relief portion (22111). In this way, the directional pressure relief efficiency can be improved.
Resumen de: WO2026155640A1
The present invention relates to a method for preparing a high-density and high-capacity lithium iron phosphate (LiFePO₄) cathode material, which is synthesised using a two-stage method. First, a high-density raw material is prepared by sintering and at a low temperature. Second, a portion of the large particles is ground to be smaller due to a high degree of grinding, followed by modification by sintering to prepare the high-density and high-capacity LiFePO₄ material. This method makes it possible to optimise the particle size by controlling the size of the ground particles and adjusting the proportions of large, medium and small particles, thereby obtaining a high-density and high-capacity LiFePO₄ material. Unlike conventional two-stage synthesis methods, this approach does not require large and small particles to be prepared separately, making the process simpler and more cost-effective. The invention also relates to a lithium iron phosphate cathode material and to a lithium-ion battery that uses this material.
Resumen de: DE102025102215A1
Vorrichtung (1) zur Herstellung von Elektroden für Hochvoltspeicher, insbesondere für Kraftfahrzeuge, umfassend eine Fördereinrichtung (2), die dazu ausgebildet ist, wenigstens eine Elektrodenfolie (3, 4) zu fördern, insbesondere von einer Rolle (5, 6) abzuwickeln, und eine Formungseinrichtung (7), die dazu ausgebildet ist, aus der Elektrodenfolie (3, 4), insbesondere durch Stapeln oder Wickeln, eine Elektrode einer elektrischen Energiespeicherzelle (11) zu formen, wobei die Vorrichtung (1) eine Erfassungseinrichtung (12) aufweist, die dazu ausgebildet ist, eine Dickeninformation der Elektrodenfolie (3, 4) zu erfassen, die eine Dicke (D) der Elektrodenfolie (3, 4) betrifft.
Resumen de: WO2026154275A1
There is provided an apparatus for processing an electric battery for recycling. The apparatus comprises a tank configured to contain a liquid. The apparatus also comprises a support surface configured to support a battery within the tank. The support surface is located within the tank such that the battery is immersed in the liquid in the tank in use. The apparatus further comprises at least one cutting blade configured to be oriented within the tank so as to cut through the battery along a substantially linear path in each of a plurality of cutting directions. Each of the cutting directions is oriented at an angle relative to the other cutting directions.
Resumen de: WO2026155496A1
The present invention relates to a method for activating a lithium secondary battery, the method comprising: (1) an initial charging step of charging at a first C-rate to a first state of charge (SOC); (2) an intermediate charging step of charging at a second C-rate lower than the first C-rate to a second SOC higher than the first SOC after the initial charging step; and (3) a final charging step of completing charging by charging at a third C-rate lower than the second C-rate to a third SOC higher than the second SOC after the intermediate charging step, wherein, through the method for activating a lithium secondary battery performed at a temperature in the range of 50°C to 60°C, the activation time of the lithium secondary battery can be shortened, and the lithium plating problem can be solved.
Resumen de: WO2026152281A1
The present application provides a battery cell, a battery apparatus, and an electric device. The battery cell comprises a casing and an electrode assembly accommodated in the casing. The electrode assembly comprises a positive electrode sheet, a negative electrode sheet, and a separator, wherein the positive electrode sheet, the negative electrode sheet, and the separator are wound to form a straight region and a bent region. The positive electrode sheet comprises a positive electrode current collector and a first positive electrode active substance layer. The first positive electrode active substance layer is arranged on the inner surface of the positive electrode current collector. The first positive electrode active substance layer comprises a first portion and a second portion that are arranged along the winding direction of the electrode assembly, wherein the thickness of the second portion is less than that of the first portion, at least part of the first portion is arranged in the straight region, and at least part of the second portion is arranged in the bent region. The negative electrode sheet comprises a negative electrode current collector and a first negative electrode active substance layer. The first negative electrode active substance layer is arranged on the outer surface of the negative electrode current collector. In the bent region, a gap is formed between the second portion and the first negative electrode active substance layer.
Resumen de: WO2026152394A1
The present disclosure relates to the technical field of batteries. Disclosed are a battery cell, a battery assembly, and an electric device. The battery cell comprises a housing, a first electrode terminal and a second electrode terminal, an electrode assembly, and a first insulating member. The housing comprises a first wall. The first electrode terminal and the second electrode terminal are disposed on the first wall and are spaced apart in a first direction. The first insulating member covers at least part of an outer surface of the first wall. The first wall has a first edge and a second edge that are opposite each other in the first direction, and the first insulating member is provided with a first hollowed-out region and a second hollowed-out region, such that a first exposed region is formed on the outer surface of the first wall corresponding to the first hollowed-out region, and a second exposed region is formed on the outer surface of the first wall corresponding to the second hollowed-out region. In the first direction, the first exposed region and the second exposed region are respectively located on two sides of the centerline of the first wall in the first direction. An electric device comprising the battery cell has a relatively high energy density.
Resumen de: WO2026152340A1
The present application relates to the technical field of energy storage, and in particular to a secondary battery and an electric device. The secondary battery comprises an electrode assembly; the electrode assembly comprises a first electrode sheet, a second electrode sheet, and a separator; and the separator is arranged between the first electrode sheet and the second electrode sheet. The first electrode sheet at the outermost side comprises first straight sections and first bent sections connected to each other; the first straight sections are located in a straight area; and the first bent sections are located in bent areas. Each first bent section comprises a first flattened portion and first raised portions; each first raised portion connects the first flattened portion and the corresponding first straight section; and a first interlayer gap is formed between the first raised portions and the second electrode sheet. Therefore, during expansion of the electrode assembly, the first interlayer gap is capable of buffering the tensile force on the first electrode sheet, thereby mitigating the problem of the electrode sheet breaking due to the tensile stress.
Resumen de: WO2026155190A1
The present invention relates to glass which contains Li, P and, as an optional element, a prescribed element M as elements that constitute a cation component, contains S and, as optional elements, at least one of a prescribed element X and a prescribed element Y as elements that constitute an anion component, and is represented by compositional formula Li(a+c-m×d-y×e)MdP(1-d)SbXcYe. In the compositional formula, m is the valency of the element M, y is the valency of the element Y, and a to e in the compositional formula satisfy the relationships -5.00
Resumen de: WO2026155401A1
A battery cell inspection device, a battery cell produced using same, and a battery pack and a vehicle comprising the battery cell are disclosed. The battery cell inspection device according to one embodiment of the present invention comprises: a photographing member for photographing a welded portion of a battery cell; a reflective member which reflects light and is coupled to the photographing member or detached and removed from the photographing member on the basis of a welding position of the battery cell; and a lighting member for providing light to the battery cell.
Resumen de: WO2026154879A1
In the present invention, a plurality of metal salts containing Li and a ternary material are prepared (S1), a blending ratio of the metal salts is adjusted (S2), black mass and the metal salts are mixed (S3), and then heat treatment is performed to synthesize a positive electrode active material (S4). Next, the positive electrode active material, a conductive auxiliary agent, and a binder are charged into a vibration stirring device for vibration stirring to obtain a powder mixture (S5). Thereafter, sheet forming is performed on a positive electrode current collector by using a forming method such as a hot press method (S6), and a positive electrode composed of a dry electrode is obtained. Instead of black mass, a used waste positive electrode material and a waste electrode active material layer can be used. As a result, resources are effectively utilized by reusing used lithium ion batteries, and a practical electrode and lithium ion battery having desired good battery characteristics are obtained at low cost.
Resumen de: DE102025102027A1
Die vorliegende Erfindung betrifft ein Verfahren zur kühlplattenintegrierten Kompensation eines Batteriezellenschwellens, bei dem zwischen mehreren in einem Batteriemodul angeordneten Batteriezellen jeweilig eine Kühlplatte (11) positioniert wird, bei dem die Kühlplatte durch einen Plattenkörper gebildet wird, welcher auf beiden Seiten von einer jeweiligen Deckschicht umgeben wird, wobei die beiden Deckschichten über jeweilige Kanten des Plattenkörpers mediendicht miteinander verbunden werden, bei dem in einer dadurch gebildeten Umhüllung ein Kühlmitteleinlass (12) und ein Kühlmittelauslass (13) angeordnet werden, bei dem alle Kühlmitteleinlässe und alle Kühlmittelauslässe der Kühlplatten des Batteriemoduls an ein Kühlmittelumwälzungssystem mit einem vorgegebenen Kühlmitteldruck angeschlossen werden, und bei dem über den Kühlmitteldruck eine Verspannkraft zwischen den Batteriezellen geregelt wird. Ferner wird eine Vorrichtung vorgestellt, welche das Verfahren umsetzt.
Resumen de: DE102025101982A1
Die vorliegende Erfindung betrifft eine Entgasungsvorrichtung (20), eine Traktionsbatterie und ein elektrisch oder teilelektrisch angetriebenes Kraftfahrzeug.Die Entgasungsvorrichtung (20) weist eine Einlassöffnung (21) und eine Auslassöffnung (22) auf, wobei sich zwischen der Einlassöffnung (21) und der Auslassöffnung (22) ein Strömungspfad (23) erstreckt, wobei die Einlassöffnung (21) mit einem Berstelement (24) fluiddicht verschlossen ist, wobei die Entgasungsvorrichtung (20) eine federbelastete Rückschlagarmatur (25) aufweist, wobei die Rückschlagarmatur (25) reversibel aus einer Verschlussstellung auslenkbar ist, wobei ein Auslenken der Rückschlagarmatur (25) aus der Verschlussstellung entgegen der Federkraft erfolgt, derart, dass bei Überschreiten eines Grenzüberdrucks in einem von dem Berstelement (24) und der Rückschlagarmatur begrenzten Bereich des Strömungspfads (23) gegenüber einem außerhalb der Traktionsbatterie (1) herrschenden Umgebungsdruck die Rückschlagarmatur (25) aus der Verschlussstellung ausgelenkt wird, wobei die Entgasungsvorrichtung (20) eine Sensoreinrichtung (26) aufweist, wobei die Sensoreinrichtung (26) in dem von dem Berstelement (24) und der Rückschlagarmatur begrenzten Bereich des Strömungspfads (23) angeordnet und dazu eingerichtet ist, basierend auf den Eigenschaften des in diesem Bereich des Strömungspfads (23) befindlichen Mediums ein Entgasen einer der Batteriezellen über die Entgasungsöffnung zu detektieren.
Resumen de: US20260213288A1
0000 The present disclosure relates to a self-checking system for an inspection device. The self-checking system for an inspection device may comprise: a stage, an object to be inspected placed on the stage, a plurality of imaging devices arranged around the object, a determination unit determining whether there is an offset between the object and placements of the plurality of imaging devices based on a plurality of images obtained from the plurality of imaging devices, and an alarm unit alerting the presence or absence of the offset determined by the determination unit.
Resumen de: WO2026155591A1
Provided are: a cathode active material having improved capacity characteristics and effects of inhibiting metal leaching; and a preparation method therefor, wherein the cathode active material comprises particles of a lithium composite oxide, wherein the lithium composite oxide comprises manganese and a doping element, an average Mn-O (manganese-oxygen) bond length in the lithium composite oxide is less than 2.55 Å, and the sphericity of the particles of the lithium composite oxide is 0.49-0.8. As such, through the preparation of the cathode active material, the structural and thermal stability of a battery may be simultaneously improved, and accordingly, the battery performance in terms of capacity and lifespan may be improved.
Resumen de: WO2026154917A1
A nonaqueous electrolyte power storage element according to one aspect of the present invention is provided with: a positive electrode that has a polyanion compound containing elemental iron; and a negative electrode that has a first graphite and a second graphite. The first graphite is artificial graphite in which at least a part of the surface is coated with non-graphitic carbon. The second graphite is scaly graphite. The average particle diameter of the first graphite is 14-22 μm. The average particle diameter of the second graphite is 2-8 μm. The mixing ratio (the first graphite/the second graphite) of the first graphite to the second graphite is in the range of 75/25 to 93/7 on a volume basis.
Resumen de: WO2026155475A1
According to one embodiment of the present invention, provided is a battery pack comprising: at least one battery module; a first case configured to accommodate any one part of the battery module; a second case coupled to the first case and configured to accommodate the other part of the battery module; and a heat-resistant member configured to block thermal energy generated in the battery module from being transferred to the first case, wherein the heat-resistant member is disposed between the inner surface of the first case and the battery module so as to block any one of the first case and the battery module from the other.
Resumen de: WO2026152355A1
The present application discloses a battery cell, a battery apparatus, and an electric apparatus. The battery cell of embodiments of the present application comprises a casing, an electrode assembly, and connecting structures. An end portion of the casing is provided with an electrode terminal; the electrode assembly is arranged in the casing, and the electrode assembly comprises a main body portion and a tab assembly led out from the main body portion in a first direction; the connecting structures are arranged to connect the tab assembly and the electrode terminal, and each connecting structure comprises a first connecting member and a second connecting member which are connected to each other; the first connecting members extend in the first direction and are connected to the tab assembly, and the second connecting members are connected to the electrode terminal; a space is formed between the casing and the main body portion; and the height of the space in the first direction ranges from 5 mm to 40 mm. The problem of reliability of the battery cell is solved.
Resumen de: WO2026155484A1
Disclosed is a method for manufacturing a battery, comprising the steps of: forming a first mark on an electrode sheet; forming a second mark on the electrode sheet on the basis of the first mark; and discharging, from the electrode sheet, a portion including an electrode tab associated with the second mark.
Resumen de: WO2026154556A1
The present invention provides a battery management method capable of more appropriately controlling charging and discharging. Specifically, the temperature of a conductive member is estimated on the basis of a module temperature, a battery current value, and the material characteristics of the conductive member (including a bus bar and electrical wiring) (S103). Subsequently, a conductive member resistance value which corresponds to the estimated conductive member temperature is estimated for each conductive member by referring to correlation information which expresses a predetermined correlation between conductive member temperature and conductive member resistance value (S104).
Resumen de: DE102025102428A1
Vorrichtung (1) zur Herstellung von Elektroden für Hochvoltspeicher, insbesondere für Kraftfahrzeuge, umfassend eine Fördereinrichtung (2), die dazu ausgebildet ist, wenigstens eine Separatorfolie (15, 16) zu fördern, insbesondere von einer Rolle (18, 19) abzuwickeln, und eine Formungseinrichtung (7), die dazu ausgebildet ist, die Separatorfolie (15, 16), insbesondere an wenigstens einer Elektrodenfolie (3, 4), in eine elektrische Energiespeicherzelle (11) zu formen, wobei die Vorrichtung (1) eine Erfassungseinrichtung (12) aufweist, die dazu ausgebildet ist, eine Dickeninformation der Separatorfolie (15, 16) zu erfassen, die eine Dicke (D) der Separatorfolie (15, 16) betrifft.
Resumen de: WO2026154854A1
A cell processing system (1A) comprises a transport device (10), a probe device (30), and a movement device (40). The transport device (10) transports a tray (91) along a transport path (12). A plurality of cells (95) are accommodated in the tray (91). The probe device (30) is disposed above the transport path (12). The movement device (40) moves the tray (91) from the transport path (12) to an upper position (45). The movement device (40) moves the tray (91) from the upper position (45) to the transport path (12). The upper position (45) is a position where the plurality of cells (95) are brought into contact with the probe device (30).
Resumen de: WO2026155420A1
The present invention relates to a method for manufacturing an electrode, an electrode, and a secondary battery comprising the electrode. The method comprises the steps of: applying an electrode active material slurry to one surface or both surfaces of an electrode current collector; drying the electrode active material slurry to form an electrode active material layer; and rolling the electrode active material layer, wherein the electrode active material slurry contains an electrode active material having an average particle diameter (D50) of 4 µm or less, and the rolling is performed using a rolling roll having a surface roughness Ry value of 1 µm or more. Accordingly, it is possible to provide an electrode having improved electrolyte impregnation and a high-performance secondary battery.
Resumen de: WO2026155191A1
The present invention relates to glass which contains, as elements that constitute a cationic component, Li, P, and a specific element M as an optional element, and also contains, as elements that constitute an anionic component, S and at least one of a specific element X and a specific element Y as an optional element, and which is represented by the composition formula Li(a + c - m × d - y × e)MdP(1 - d)SbXcYe. In the composition formula, m is the valence of the element M, y is the valence of the element Y, and a to e in the composition formula satisfy the relational expressions -5.30 < a - 2b - 5d < -5.00, 1.50 < a < 7.50, c ≥ 0, 0 ≤ d ≤ 4/7, and e ≥ 0.
Resumen de: DE102025134397A1
Die vorliegende Erfindung betrifft ein Verfahren zum Herstellen einer zylindrischen Batteriezelle (10). Das Verfahren umfasst die folgenden Schritte: Bereitstellen eines Zellgehäuses (12) mit zwei Zellöffnungen (14, 16), wobei sich eine Jelly-Roll (20) in dem Zellgehäuse (12) befindet; Durchführen eines Injektionsvorgangs an der zylindrischen Batteriezelle (10), umfassend das Injizieren eines Elektrolyten (18) in das Zellengehäuse (12) durch eine Zellenöffnung (14) der Zellenöffnungen (14, 16) und das Absaugen (28) des Zellengehäuses (12) durch eine zweite Zellenöffnung (16) der Zellenöffnungen (14, 16); Schließen der ersten Zellenöffnung (14) oder der zweiten Zellenöffnung (16) der Zellenöffnungen (14, 16) des Zellengehäuses (12); Durchführen eines Formungsvorgangs an der zylindrischen Batteriezelle (10), umfassend ein Ansaugen (28) des Zellgehäuses (12) durch die erste Zellöffnung (14) oder die zweite Zellöffnung (16) des Zellgehäuses (12); und Schließen der ersten Zellöffnung (14) oder der zweiten Zellöffnung (16) des Zellgehäuses (12).
Resumen de: WO2026155467A1
According to exemplary embodiments, a secondary battery manufacturing system is provided. The system comprises: a secondary battery manufacturing facility including grippers; and a human-machine interface (HMI) configured to pop up a window for playing a video in response to gripper failures.
Resumen de: WO2026154513A1
The present disclosure relates to an integrated electrical and thermal busbar system designed for cylindrical cell battery packs. The system comprises a first busbar (1) and a second busbar (3) interfacing with the positive and negative terminals of a plurality of cylindrical cells (2) via resistance welding. A central connecting rod (5), constructed from high-conductivity materials such as copper or aluminum, bridges these busbars to ensure electrical continuity and facilitate heat transfer. A thermal interface material (4) is strategically positioned to fill voids between the cylindrical cells (2), the central connecting rod (5), and a heat dissipation unit (7), which may be a cold plate or heat sink, thereby optimizing thermal conductivity. The assembly is enclosed within a casing (6) that provides structural integrity and protection. The central connecting rod (5) also functions as a heating element in low-temperature conditions, enhancing the system's versatility.
Resumen de: WO2026154553A1
This cell structure (1) includes: a cell laminate (10) provided with a conductive extension part (12); an exterior body (20) that is formed while maintaining airtightness of an internal space (S) and is also formed so as to be plastically deformable; and an internal cover (30) including a first internal cover split body (31) and a second internal cover split body (32), which are capable of being split in a lamination direction (D1). The first internal cover split body (31) is formed with a first excess length part (33a) that protrudes outward, and the second internal cover split body (32) is formed with a second excess length part (33b) that protrudes outward. The first excess length part (33a) is fixed in contact with the second excess length part (33b), or is fixed to the second excess length part (33b) with the conductive extension part (12) interposed therebetween.
Resumen de: WO2026155489A1
According to exemplary embodiments of the present invention, a battery cell may be provided. The battery cell may include: an electrode assembly including an electrode terminal; and a terminal assembly connected to the electrode assembly, wherein the terminal assembly includes: a busbar coupled to the electrode terminal and including a terminal part protruding in one direction; a cap housing including a terminal connection part penetrated by the terminal part; and an inner housing between the busbar and the electrode assembly.
Resumen de: WO2026155045A1
A battery 100 according to the present disclosure comprises: an exterior can 1; an electrode group 4 that is wound and housed in the exterior can 1; a sealing body 8 that seals the exterior can 1; a lead 5c that is connected to the electrode group 4 and the sealing body 8; and an insulating plate 10 that is disposed between the electrode group 4 and the sealing body 8. The insulating plate 10 includes: a disk-shaped base part 11 including a lead hole 13 through which the lead 5c penetrates; and an upright wall part 12 that is upright from the base part 11. The upright wall part 12 is disposed on the outer peripheral side of the lead hole 13 in a radial direction from a central axis O of the battery 100, and has a curved arcuate shape along the circumferential direction around the central axis O. When viewed from a direction parallel to the central axis O, an angle α formed by a first virtual straight line connecting one end of the upright wall part 12 with the central axis O and a second virtual straight line connecting the other end of the upright wall part 12 with the central axis O is between 90° and 180°inclusive.
Resumen de: WO2026155388A1
According to an embodiment of the present invention, provided is a rolling roll comprising a roll main body, a shaft part for supporting the roll main body, and a flow channel part formed inside the roll main body and the shaft part, the flow channel part including: a center flow channel part which has a first center flow channel formed such that a cooling oil flows therethrough in the form of passing through the center of the roll main body in the longitudinal direction of the roll main body and the shaft part, and has a second center flow channel formed such that the cooling oil flows therethrough, separately from the first center flow channel; and a full-width flow channel part which has a first full-width flow channel formed such that the cooling oil flows therethrough around the outer circumference of the roll main body, and has a second full-width flow channel formed such that the cooling oil flows therethrough around the outer circumference of the roll main body, wherein the length of the first full-width flow channel is larger than the length of the second full-width flow channel.
Resumen de: WO2026155488A1
The disclosed battery cell assembly comprises: a plurality of stacked battery cells; a frame surrounding the plurality of battery cells; and an end plate coupled to the frame. The end plate includes a ceramic coating layer at least partially on an inner surface facing the plurality of battery cells.
Resumen de: DE102025102269A1
Die Erfindung betrifft ein Verfahren zum Steuern eines Aufladevorgangs einer Energiespeichervorrichtung (18) eines mobilen Endgeräts (14), wobei eine Steuervorrichtung (34) ein Kraftfahrzeug (10) feststellt (S1), dessen Energieabgabevorrichtung (12) zum Aufladen mobiler Endgeräte (14) vorbestimmt ist; eine Datenkommunikationsverbindung (46) zwischen dem mobilen Endgerät (14) und der Steuervorrichtung bereitstellt (S2); prüft (S3), ob der Benutzer (16) des mobilen Endgeräts (14) zum Aufladen der Energiespeichervorrichtung (18) des mobilen Endgeräts (14) durch die Energieabgabevorrichtung (12) des festgestellten Kraftfahrzeugs (10) autorisiert ist; bei einem positiven Prüfergebnis ein Freigabesignal erzeugt (S7), das ein Freigeben eines Zugangs zu einem Ladeanschluss (22) an die Energieabgabevorrichtung (12) beschreibt; und das erzeugte Freigabesignal an eine Zugangseinrichtung (26), die einen Zugang zu dem Ladeanschluss (22) des Kraftfahrzeugs (10) reguliert, überträgt (S8). Optional kann die Steuervorrichtung (34) zusätzlich ein vorgegebenes Aufladekriterium überprüfen, welches eine Aufladebedingung beschreibt (S6); und das Freigabesignal nur bei Erfüllen des Aufladekriteriums erzeugen (S7).
Resumen de: US20260208292A1
0000 A system performs a method of manufacturing an electrode of a battery cell. An edge of the electrode including an artifact at a selected location is radiated with a cleaning laser. A first support structure supports the electrode and a second support structure supports the cleaning laser. A relative movement is created between the electrode and the cleaning laser via the first support structure and the second support structure to align the selected location with a nozzle located at a distance from the cleaning laser. A first stream of gas is blown across a first surface of the electrode from the nozzle to remove the artifact from the edge. The artifact is received in a second chamber via a vacuum between the first chamber and the second chamber.
Resumen de: US20260213326A1
0000 A housing for an electrical device has a battery pack interface for connecting with a battery pack. The housing includes at least a first component made of a first material. The first material includes polypropylene beads that are expanded and molded together. A ratio of a volume of the first component to a volume of the housing is greater than or equal to 50% and less than or equal to 90%. The housing also includes a plurality of second components. At least part of the first component is arranged between two second components of the plurality of second components.
Resumen de: WO2026155345A1
This electronic device may comprise: a bracket; a battery arranged on the bracket; a vapor chamber at least partially overlapping the battery; a first tape for covering at least a portion of the outer surface of the battery; a second tape which attaches a region of a first portion of the first tape to the bracket so as to attach the battery to the bracket and which has a first flexibility; and a third tape which attaches, to the vapor chamber, at least a part of another region of the first portion of the first tape at least partially overlapping the vapor chamber, so as to attach the battery to the vapor chamber, and has a second flexibility that is lower than the first flexibility of the second tape.
Resumen de: WO2026152263A1
Provided in the embodiments of the present application are a battery cell, a battery device, an electrical device and an energy storage device. The battery cell comprises a casing, a first electrode lead-out component and an electrode assembly. The casing comprises a first wall; the first electrode lead-out component is disposed on the first wall; the electrode assembly is disposed in the casing and comprises an electrode body and a first tab extending from the electrode body, and the first tab comprises a plurality of stacked first tab pieces; the first tab comprises a first section and a second section, wherein the first section is connected to the first electrode lead-out component by means of a first weld, and the second section is connected to the first section and the electrode body; and the second section is provided with a binding portion, and at least some of the plurality of first tab pieces are connected to each other by means of the binding portion. The present application can improve the reliability of the battery cell.
Resumen de: US20260213154A1
0000 Embodiments of the present disclosure provide a negative electrode heteroatom-doped carbon material. The negative electrode heteroatom-doped carbon material includes carbon element, nitrogen element, and oxygen element. A weight percentage of the carbon element is in a range from 77% to 81%, a weight percentage of the nitrogen element is in a range from 8% to 12%, and a weight percentage of the oxygen element is in a range from 4% to 6.5%, based on a total weight of the negative electrode heteroatom-doped carbon material being 100%.
Resumen de: DE102025102472A1
Die Erfindung betrifft ein Verfahren (100) für eine Zwei-Phasenkühlung eines elektrochemischen Energiespeichers (10) mit einem Gehäuse (20) und einer elektrochemischen Zelle (30), aufweisend die folgenden Schritte:a) Verdampfen (101) zumindest eines Teils eines Stoffgemisches (40) in der elektrochemischen Zelle (30) bei Erwärmung des Stoffgemisches (40) in einem ersten Phasenübergang,b) Kondensieren (102) des verdampften zumindest einen Teils des Stoffgemisches (40) in einem zweiten Phasenübergang an einer Kühlvorrichtung (50),c) Rückführen (103) des kondensierten zumindest einen Teils des Stoffgemisches (40) in die elektrochemische Zelle (30),wobei das Stoffgemisch (40) ein Kühlmittel (41) und einen Elektrolyten (42.1, 42.2) umfasst.Ferner betrifft die Erfindung einen elektrochemischen Energiespeicher (10) zur Energieumwandlung mit einer Zwei-Phasenkühlung und ein Fahrzeug (200).
Resumen de: US20260213245A1
0000 A method for forming an all-solid-state battery according to an embodiment of the present invention is a method for forming an all-solid-state battery including an electrode stack in which a positive electrode layer, a negative electrode layer, and a solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer are stacked. The method includes a temperature raising step of raising a temperature of the all-solid-state battery; and an aging step of holding the all-solid-state battery in which the temperature has been raised. A method of raising the temperature of the all-solid-state battery in the temperature raising step is a method of dielectrically heating the solid electrolyte layer by applying a high-frequency AC electric field along a stacking direction of the electrode stack.
Resumen de: US20260213346A1
0000 A separator for a secondary battery according to the present disclosure includes a substrate and a coating layer on a surface of the substrate, the coating layer including inorganic particles. The substrate orientation degree, which is calculated from a puncture strength of the separator and a weight per unit area of the substrate, may be within a predetermined range. A secondary battery according to the present disclosure includes an electrode assembly including a cathode, an anode, and the separator for a secondary battery according to the present disclosure. The thermal stability of the separator and the secondary battery may be improved.
Resumen de: US20260213157A1
0000 Provided are a positive electrode and a rechargeable lithium battery, the positive electrode including a positive electrode current collector, a positive electrode active material layer disposed on the positive electrode current collector and including a positive electrode active material, and a coating layer disposed between the positive electrode current collector and the positive electrode active material layer, and including an irreversible positive electrode additive. The irreversible positive electrode additive includes at least one of a lithium cobalt-based oxide and a lithium nickel-based oxide, and further includes a lithium iron-based oxide.
Resumen de: US20260213261A1
0000 Disclosed are a composite solid electrolyte, a method of preparing the same, and a lithium battery including the same. The composite solid electrolyte includes a first solid electrolyte containing a cubic garnet phase, and a second solid electrolyte containing a lithium haloboracite, where the first solid electrolyte is a garnet-containing solid electrolyte including a compound having a cubic crystal phase and represented by Formula 1, the composite solid electrolyte has a peak at about −2 ppm to about 8 ppm in a <7>Li nuclear magnetic resonance spectrum, and the peak has a full width at half maximum of about 0.3 ppm to about 4.0 ppm, the lithium haloboracite includes chlorine, bromine, iodine, or a combination thereof, and the first solid electrolyte has a larger volume than the second solid electrolyte.
0000
wherein, in Formula 1, M1, M2, A, and o are as defined in the detailed description.
Resumen de: US20260213208A1
The present disclosure relates to a rechargeable lithium battery having desired or improved rapid charge-discharge characteristics. For example, the rechargeable lithium battery of the present disclosure comprises a positive electrode, a negative electrode and a separator interposed between the positive electrode and the negative electrode, wherein the positive electrode comprises a positive electrode active material, a first binder and a first conductive material, the first conductive material comprises carbon nanotubes. A ratio of an ionic resistance of the positive electrode to an ionic resistance of the negative electrode is about 1.4 to about 2.0.
Resumen de: WO2026155293A1
The present invention relates to a tray device and, more particularly, to a tray device comprising: a device frame including a first frame, a second frame, and a support frame, wherein the first frame and the second frame are spaced apart from each other at a predetermined interval along a first direction (D1), and the support frame connects the first frame and the second frame; a pressing part disposed in the device frame and configured to press a battery cell, wherein the pressing part includes a driving unit, a pressing unit, and a cell support block, the driving unit being disposed on the first frame and connected to the pressing unit, the pressing unit being disposed inside the device frame and configured to press the battery cell, and the cell support block being configured to support a lower portion of the battery cell; and a height adjustment part disposed in the device frame and connected to the cell support block, wherein the height adjustment part may be configured to move the cell support block in a third direction (D3).
Resumen de: WO2026155602A1
The present invention relates to an electrolyte for lithium-sulfur batteries, which comprises a non-aqueous solvent, a lithium salt, and an additive, wherein the non-aqueous solvent includes an acyclic ether and a conjugated heterocyclic compound, and the additive includes P2S5 and a lithium- and fluorine-containing compound.
Resumen de: WO2026153585A1
Provided in the present application are a BDU and a battery pack. The BDU comprises a housing, an electrical assembly, a busbar and a heat dissipation module, wherein the housing comprises a bottom plate; the electrical assembly is mounted in the housing, and is arranged on the bottom plate; the busbar is arranged on the bottom plate, and is electrically connected to the electrical assembly, and the busbar is integrally formed with the bottom plate; and the heat dissipation module is arranged on the housing, and is in heat transfer connection with the busbar. In the present application, the busbar is integrally formed on the bottom plate, such that the difficulty in mounting the busbar on the housing can be reduced, and the bottom plate can provide a stable support for the busbar, thereby enhancing the overall structural rigidity of the busbar, and preventing vibrations, fatigue, etc., caused by a suspended arrangement of the busbar. Moreover, the busbar is arranged on the bottom plate, such that the internal space of the housing can be saved on, the layout design and wiring process of the electrical assembly in an accommodating cavity are simplified, and the production difficulty is reduced, thereby improving the production efficiency and operational stability of the BDU and the battery pack.
Resumen de: WO2026155219A1
The purpose of one embodiment of the present invention is to make it possible to stably dissolve and precipitate metallic lithium (avoid or reduce dendrites and dead lithium) and achieve both a high energy density and a cycle life in a metallic lithium secondary battery. An electrolyte for a metallic lithium secondary battery according to one embodiment of the present invention comprises at least one halogenated cyclic phosphoric acid ester represented by formula (1) and a predetermined solvent. (In formula (1), X is halogen, R1-R4 are each independently an alkyl group or hydrogen, and n is an integer of 1-4, provided that when n is an integer of 2-4, the respective R3s may be the same group or different groups and the respective R4s may be the same group or different groups.)
Resumen de: DE102025102114A1
Die hier offenbarte Technologie betrifft erfindungsgemäß ein Wärmemanagementsystem WM für ein Kraftfahrzeug mit einem Niedertemperatur-Kühlmittelkreislauf B, einem Kältemittelkreislauf A, einem Hochtemperatur-Kühlmittelkreislauf C und einer Heizeinrichtung für einen Innenraum des Kraftfahrzeugs. Das Wärmemanagementsystem WM ist für einen Wärmefluss vom Kältemittelkreislauf A zur Heizeinrichtung ausgebildet. Die hier offenbarte Technologie betrifft erfindungsgemäß ferner ein Kraftfahrzeug mit einem solchen Wärmemanagementsystem WM.
Resumen de: WO2026155197A1
This nonaqueous electrolyte for a secondary battery contains dichloromethane and an S-containing cyclic compound. The S-containing cyclic compound has a 5- or 6-membered S-containing ring that contains a sulfur atom.
Resumen de: US20260213314A1
A method for manufacturing an electricity storage device includes a case body preparing step, a closing plate preparing step, and a welding step. The closing plate prepared in the step of preparing the closing plate includes: a closing portion that covers the opening of the case body, while overlapping an edge of the opening; and an insertion portion inserted into the opening along an inner side of the case body with the closing plate closing the opening. In the step of laser-welding the case body and the closing plate, an area located on the closing portion side relative to a boundary between the edge of the opening and the closing portion is irradiated with laser light, thereby welding the edge of the opening and the closing portion at their boundary.
Resumen de: WO2026155105A1
The present disclosure provides a secondary battery comprising: a negative electrode that occludes and releases metal ions; a positive electrode that occludes and releases metal ions; a negative electrode electrolyte that contains an aqueous solvent; a positive electrode electrolyte that contains an aqueous solvent; a negative electrode chamber that accommodates the negative electrode and the negative electrode electrolyte; and a positive electrode chamber that accommodates the positive electrode and the positive electrode electrolyte. The negative electrode chamber and the positive electrode chamber are separated by a partition that is disposed between the negative electrode chamber and the positive electrode chamber and allows metal ions to pass therethrough. The negative electrode electrolyte has a pH greater than the pH of the positive electrode electrolyte. The partition has a structure obtained by stacking two or more layers including at least a first layer and a second layer that contain different cation exchange groups from one other. The first layer contains a polymer compound containing at least one cation exchange group selected from the group consisting of carboxylic acid groups, hydroxycarboxylic acid groups, phosphonic acid groups, phosphinic acid groups, and xanthic acid groups, and is in contact with at least one of the negative electrode electrolyte and the positive electrode electrolyte.
Resumen de: US20260208382A1
The disclosed secondary battery electrode cutting device comprises: a cutting module having an upper blade installed on an upper holder, a lower blade installed on a lower holder, and an adjustment assembly for adjusting a clearance and squareness between the upper blade and the lower blade; a cutting drive unit for operating the upper blade to move up and down toward the lower blade side to cut an electrode sheet; and a cutting byproduct remover for suctioning and discharging cutting byproducts coming from the electrode sheet during cutting of the electrode sheet. The adjustment assembly includes: an upper blade holder support for supporting the upper blade holder; and a clearance adjustment unit and a squareness adjustment unit installed on the upper blade holder support to elastically press and tilt the upper blade holder so that the clearance and squareness between the upper blade and the lower blade are adjusted.
Resumen de: US20260213279A1
A cylindrical electrode assembly includes a first electrode, a first separator, a second electrode, and a second separator, with the first electrode, first separator, second electrode, and second separator being stacked and wound into a cylindrical electrode assembly. The first separator includes an extended portion that extends longer than a winding-end-side end of the first electrode. The first extended portion is bent to surround the winding-end-side end of the first electrode.
Resumen de: US20260208624A1
A system is provided with which data on the internal state of a storage battery such as SOC-OCV characteristics and FCC can be obtained with high accuracy and highly accurate estimation is possible even in the case of repeating charging and discharging for a long period. The storage battery management system includes a vehicle that includes a unit enabling data transmission and reception; the vehicle includes a storage battery, a balancing circuit electrically connected to the storage battery, and a vehicle control unit having a function of controlling the balancing circuit; the storage battery includes an assembled battery including a plurality of battery cells; the vehicle control unit has a function of selecting an estimated value that most closely shows a state of each of the battery cells included in the assembled battery; and the balancing circuit has a function of being controlled in accordance with the selected estimated value.
Resumen de: WO2026155520A1
The present invention relates to a positive electrode mixture layer for an all-solid-state battery. More specifically, the positive electrode mixture layer includes: a positive electrode current collector; a positive electrode active material layer on the positive electrode current collector; and a first solid electrolyte layer on the positive electrode active material layer, wherein the positive electrode current collector includes a main body and a positive electrode tab protruding in one direction from the main body, and the first solid electrolyte layer may include a first region adjacent to the positive electrode tab and a second region excluding the first region. The first region includes first solid electrolyte particles, and the second region includes second solid electrolyte particles, wherein the average particle size of the first solid electrolyte particles is larger than the average particle size of the second solid electrolyte particles, and the ratio of the area of the first region to the area of the second region may be 2:8 to 5:5.
Resumen de: WO2026155553A1
The present invention relates to a cathode active material composite comprising: a cathode active material; and a coating layer included on at least a portion of the surface of the cathode active material, wherein the coating layer comprises a Br-containing sulfide solid electrolyte and an oxide.
Resumen de: US20260213562A1
0000 The invention is a battery protection device and a current regulation system for battery power supply. It features adjustable low- and high-voltage protection. It includes a housing, circuit board, first display screen, first and second buttons, indicator light, and sealing film. The first display screen, first button, second button, and indicator light are electrically connected to the circuit board. The first and second buttons set the minimum voltage output value. The first display screen displays the set minimum voltage output value and the real-time voltage of the battery. The indicator light indicates the device's on/off state. The circuit board is inside the housing. The housing’s upper surface has multiple openings. The first button, second button, indicator light, and first display screen protrude from the housing through corresponding openings. The sealing film covers the upper surface of the housing. The device offers high safety, long life, and good waterproofing.
Resumen de: WO2026155546A1
The present specification provides a lithium secondary battery, a battery module comprising same, and a battery pack comprising same, the lithium secondary battery comprising: a positive electrode; a negative electrode; a separator between the positive electrode and the negative electrode; and an electrolyte, wherein the negative electrode includes a negative electrode active material layer, the negative electrode active material layer includes a silicon-based active material, the electrolyte includes fluoroethylene carbonate (FEC), and a ratio (B/A) of parts by weight (B) of the silicon-based active material based on 100 parts by weight of the negative electrode active material included in the negative electrode active material layer to parts by weight (A) of the fluoroethylene carbonate (FEC) based on 100 parts by weight of the electrolyte is 4 to 7.
Resumen de: US20260213249A1
0000 A method of preventing separator slip in a battery cell that is stopped by a stopper in a production line, the method includes transporting the battery cell in a length-wise direction at the production line such that terminal tabs of the battery cell are parallel to a moving direction of the production line, and controlling an acceleration of the battery cell to move on the production line to less than 7G such that the separator slip is prevented in an impact between the battery cell and the stopper.
Resumen de: WO2026152261A1
The present application provides a battery cell, a battery device, and an electric device. The battery cell comprises a casing, an electrode assembly, and a thermally conductive assembly. The casing comprises an opening in a first direction. The electrode assembly and the thermally conductive assembly are accommodated in the casing. The thermal conductivity of the thermally conductive assembly is greater than the thermal conductivity of the casing. The casing comprises a thermally conductive wall configured to be connected to a heat exchange mechanism. The casing is easier to exchange heat with the heat exchange mechanism at the thermally conductive wall. The electrode assembly is connected to the thermally conductive wall by means of a thermally conductive portion, so as to facilitate the exchange of heat between the electrode assembly and the heat exchange mechanism. Thus, the rate of heat exchange between an internal environment and an external environment of the battery cell is improved, so as to better balance the temperature of the battery cell, thereby improving the performance of the battery cell and prolonging its service life.
Resumen de: WO2026155590A1
A battery assembly according to an embodiment of the present invention comprises: a plurality of battery cells; a housing having an accommodation space in which the battery cells are accommodated; and a cooling material positioned in the accommodation space and in contact with the battery cells. At least one shape part having at least one of a concave part or a convex part is provided in the housing.
Resumen de: WO2026153959A1
The present invention relates to the recycling of used lithium ion batteries and provides a method for processing black mass derived from lithium ion battery materials and comprising iron and manganese.
Resumen de: US20260213246A1
0000 Proposed are a layout of a battery cell assembly apparatus and an operating method thereof. The layout comprises a first processing line for manufacturing a first-type electrode assembly, a second processing line for manufacturing a second-type electrode assembly, a stack line for manufacturing a double electrode assembly by stacking and fixing the first-type electrode assembly and the second-type electrode assembly output from the first processing line and the second processing line, a first insertion line for manufacturing a battery cell by inserting the double electrode assembly into a case, and a second insertion line for manufacturing a battery cell by inserting the double electrode assembly into a case, wherein the first processing line and the second processing line are arranged in parallel, and the first insertion line and the second insertion line are arranged in parallel to reduce a length of an entire line.
Resumen de: WO2026153958A1
The present invention relates to the recycling of used lithium ion batteries and provides a method for processing black mass derived from lithium ion battery materials.
Resumen de: WO2026155294A1
Disclosed are a positive electrode and an all-solid-state battery comprising same, the positive electrode including a positive electrode active material layer which comprises a positive electrode active material and a solid electrolyte. The positive electrode active material comprises an Li2S-containing composite which comprises Li2S, a lithium salt compound, a boron group metal halide salt, and an electron conductive material, wherein the amounts of Li2S, the lithium salt compound, the boron group metal halide salt, and the electron conductive material are controlled.
Resumen de: WO2026155404A1
The present disclosure provides an electrolyte for a lithium secondary battery and a lithium secondary battery comprising the electrolyte. The lithium secondary battery according to the present disclosure comprises a positive electrode for a lithium secondary battery, a negative electrode including a negative electrode current collector, a separator interposed between the positive electrode and the negative electrode, and an electrolyte disposed between the positive electrode and the negative electrode, wherein the positive electrode may include a positive electrode active material and a sacrificial positive electrode active material, and the electrolyte may include lecithin.
Resumen de: WO2026153957A1
The present invention relates to the recycling of used lithium ion batteries and provides a method for processing black mass derived from lithium ion battery materials.
Resumen de: US20260213195A1
An electricity storage device disclosed herein includes an electrode assembly including a positive electrode and a negative electrode. The negative electrode includes a negative electrode composite material layer containing a graphite-based negative electrode active material particle. A mean circularity of the graphite-based negative electrode active material particle is equal to or more than 0.8. With respect to a particle size distribution on a volume basis of the graphite-based negative electrode active material particle that is obtained by a laser diffraction scattering method, all of following conditions are satisfied when a particle diameter whose cumulative frequency from a small particle side is 10% is treated as d10, a particle diameter whose cumulative frequency is 50% is treated as d50, and a particle diameter whose cumulative frequency is 90% is treated as d90: (1) d90/d10 is equal to or more than 5; and (2) d90/d50 is equal to or less than 2.
Resumen de: WO2026155468A1
According to exemplary embodiments, a secondary battery manufacturing system is provided. The system includes the steps of: modeling sub-models; loading the sub-models into an animation program; and merging the sub-models into a model representing a secondary battery manufacturing facility.
Resumen de: DE102025102429A1
Verfahren zur Herstellung einer Batterie (1), insbesondere einer Fahrzeugbatterie, umfassend die Verfahrensschritte:- Bereitstellen eines eine Aufnahmeausnehmung (3) aufweisenden Gehäusekörpers (2),- Bereitstellen einer Vielzahl von Energiespeicherzellen (4), welche über eine Verbindungseinrichtung (5) miteinander zur Ausbildung einer Zellenbaugruppe (6) verbunden sind,- Einsetzen der Zellenbaugruppe (6) in die Aufnahmeausnehmung (3),- Einbringen eines Schäummaterials (25) in einen Hohlraum (7, 7') der Zellenbaugruppe (6) und/oder in einen zwischen der Zellenbaugruppe (6) und einer Gehäusewandung des Gehäusekörpers (2) angeordneten Hohlraum (7, 7'),- Anordnen eines eine formgebende Formoberfläche (9) aufweisenden Formwerkzeugs (8), das während eines Schäumprozesses des Schäummaterials (25) einen Oberflächenabschnitt des Schäummaterials (25) formt,- Abstützten der Zellenbaugruppe (6) während des Einbringens des Schäummaterials (25) in einen Hohlraum (7, 7') und/oder während des Schäumprozesses des Schäummaterials (25) vermittels einer Abstützeinrichtung (10), wobei die Abstützeinrichtung (10) die Zellenbaugruppe (6) gegenüber dem Formwerkzeug (8) und/oder gegenüber dem Gehäusekörper (2) abstützt.
Resumen de: WO2026154976A1
An electrode for this secondary battery is characterized by comprising a core body, a mixture layer disposed on the core body, and a plurality of tabs electrically connecting the core body and an electrode terminal, wherein the plurality of tabs include a first tab on one end side in a longitudinal direction of the mixture layer, a second tab on the other end side in the longitudinal direction of the mixture layer, and a third tab disposed between the first tab and the second tab, the tab resistance of, from among the plurality of tabs, the third tab is highest in value, and the tab resistance of, from among the plurality of tabs, at least one of the first tab or the second tab is lowest in value if the ratio (Y/X) of the distance Y in the longitudinal direction from the other end of the mixture layer to the second tab to the distance X in the longitudinal direction from one end of the mixture layer to the first tab satisfies 0.95 ≤ Y/X ≤ 1.05.
Resumen de: US20260213167A1
0000 The negative active material according to an embodiment may include a silicon-based active material composite; and a carbon-based active material, wherein the silicon-based active material composite may include silicon oxide (SiOx, 0
Resumen de: US20260213290A1
Disclosed are a battery apparatus, an energy storage apparatus, an energy storage system, an electric apparatus, and a charging network. The battery apparatus includes an energy unit and a sampling assembly. The energy unit includes a pouch battery cell and a conductive casing, an accommodating space is formed in the casing, and the pouch battery cell is accommodated in the accommodating space. The pouch battery cell includes a first electrode lead-out part and a second electrode lead-out part with opposite polarities. the first electrode lead-out part of at least one of the pouch battery cell is electrically connected to the casing, and the second electrode lead-out part is insulated from the casing. The sampling assembly is electrically connected to the second electrode lead-out part and the casing.
Resumen de: US20260214865A1
Disclosed are intelligent liquid cooling systems for electric vehicles. The systems include a coolant circulation system, a sensor, and a controller. The coolant circulation system includes a coolant circulation path filled with a liquid coolant in thermal communication with a subsystem of the electric vehicle, and a coolant circulator to flow the liquid coolant through the coolant circulation path. The sensor is configured to be circulated through the coolant circulation path by the flowing liquid coolant, where the sensor is configured to sense localized physical conditions of the liquid coolant at different locations along the coolant circulation path. In addition, the sensor is in wireless communication with a controller. The controller is configured to receive signals from the sensor indicative of the localized physical conditions at the different locations and adjust a condition of the liquid coolant in response to the received signals.
Resumen de: WO2026154138A1
In a first aspect of the present invention there is provided an electric water heating system. The electric water heating system comprises a fluid-cooled battery pack comprising at least one battery cell and at least one battery cooling duct thermally coupled to the at least 5 one battery cell. The electric water heating system further comprises an electrical water heating device electrically coupled to the at least one battery cell. The electric water heating system further comprises a plurality of power electronics components located above the fluid-cooled battery pack. The power electronics components are electrically coupled to the at least one battery cell. The electric water heating system further comprises 10 a power component cooler for cooling the power electronics components. The power component cooler defines at least part of a power cooling duct that is thermally coupled to the power electronics components and fluidly coupled to the battery cooling duct such that, in use, a heat exchange fluid flows through both the battery cooling duct and the power cooling duct
Resumen de: US20260213265A1
The present disclosure provides a lithium-ion battery comprising a non-aqueous electrolyte, wherein the non-aqueous electrolyte comprises: (1) 5-30 wt % of a fluorinated co-solvent; (2) 0.1-2 wt % of an unsaturated siloxane, a saturated siloxane and/or a triazine compound; and (3) 1-15 wt % of a combination of fluoroethylene carbonate and di-fluoroethylene carbonate as a film-forming additive. The lithium-ion battery possesses a high thermal stability and fast-charging ability. The present disclosure also provides use of an unsaturated siloxane, a saturated siloxane and/or a triazine compound as a scavenger in a non-aqueous electrolyte for a lithium-ion battery. With such compounds, trace water and HF generated by the side reaction under high temperature can be scavenged from the non-aqueous electrolyte.
Resumen de: US20260213565A1
An ECU executes a process including: acquiring a limitation history when conditions for executing transfer control are satisfied; when current limitation was performed in the previous transfer control, performing cooling control when battery temperature is greater than a start temperature; performing current limitation when the battery temperature is greater than a limit temperature; ending the cooling control when conditions for ending the cooling control are satisfied; and storing the limitation history.
Resumen de: US20260213271A1
There is provided a battery member, which includes a porous structure at an outermost surface of the battery member, and an adhesive layer. The adhesive layer includes one or more adhesive portions formed of an adhesive. Each of the one or more adhesive portions includes an adhesive protrusion portion Xa that is disposed on the porous structure, and an adhesive impregnation portion Xb that is disposed within the porous structure and extends onto a periphery of the adhesive protrusion portion Xa.
Resumen de: US20260213319A1
0000 A battery apparatus and an electric apparatus are provided and pertain to the field of battery technologies. The battery apparatus includes a cell array and a box; where the cell array is adhesively disposed within the box, and the cell array includes a plurality of pouch cells stacked along a thickness direction; and a reinforcing partition is provided between large surfaces of at least two adjacent pouch cells in the cell array, the reinforcing partition is connected to the box, stiffness of the reinforcing partition is greater than stiffness of a pouch shell of the pouch cell, and the reinforcing partition exchanges heat with the pouch cells.
Resumen de: US20260213334A1
0000 Disclosed are a battery apparatus and an electric device. The battery apparatus includes a case and a battery module, and the case has an accommodating cavity and a discharge cavity. The discharge cavity is provided around an outer peripheral side of the accommodating cavity, and the discharge cavity is in communication with the accommodating cavity via a communication hole. The battery module is disposed within the accommodating cavity, and includes a housing and a plurality of pouch battery cells accommodated in the housing. The housing has a weak part configured to release internal pressure of the pouch battery cells.
Resumen de: WO2026155482A1
The present invention relates to a battery module including: a plurality of battery cells stacked on each other; a plurality of cooling plates and non-conductive pads alternately arranged between the plurality of battery cells along a stacking direction of the plurality of battery cells; and cooling fins arranged between the plurality of battery cells and the non-conductive pads along the stacking direction of the plurality of battery cells.
Resumen de: US20260213285A1
0000 Systems and circuits relating to an AC battery system. An AC battery system that outputs AC power is provided. Provided are integrated energy blocks with each energy block having one or more energy storage cells and a Cell-PE block that contains power electronics components. Various configurations of the AC battery system may include an integrated full bridge or half-bridge DC/AC inverter. Various configurations of the cell-PE block may include low and high voltage half-bridge circuits, an isolation transformer, as well as a full bridge inverter.
Resumen de: US20260213280A1
0000 The electricity storage device includes an electrode assembly, an electrolytic solution, a case, and a first current collector member. The electrode assembly contains a first electrode tab group protruding from a first end face. The electrolytic solution contains an excess electrolytic solution that is present between the electrode assembly and the case. When a height of the first end face of the electrode assembly is treated as H, a length of the first electrode tab group in a height direction is ⅕ H or more and less than ½ H. In a state where SOC is 95% or more, a height of a liquid surface of the excess electrolytic solution is 1/100 H or more and not more than 1/10 H, and a distance between the liquid surface of the excess electrolytic solution and a lower end of a first electrode tab group is equal to or more than ½ H.
Resumen de: US20260213168A1
0000 Disclosed are a negative electrode for a rechargeable lithium battery, and a rechargeable lithium battery including the negative electrode. The negative electrode for a rechargeable lithium battery includes a current collector, a first negative electrode active material layer on a first surface of the current collector, and a second negative electrode active material layer on a second surface of the current collector. A difference in the active mass density between the first negative electrode active material layer and the second negative electrode active material layer is in a range of about 0.02 g/cc to about 0.06 g/cc.
Resumen de: WO2026155613A1
A battery diagnosis apparatus according to an embodiment disclosed herein may comprise: an interface configured to obtain a plurality of open circuit voltage (OCV) data for a battery unit; and one or more processors configured to obtain a plurality of estimated states of charge (SOCs) corresponding to at least some of the OCV data, obtain a plurality of estimated states of health (SOHs) corresponding to at least some of the plurality of estimated SOCs, and diagnose a degree of occurrence of available lithium loss of the battery unit on the basis of a specific estimated SOH satisfying a threshold SOH condition among the estimated SOHs.
Resumen de: WO2026152338A1
A battery cell, a battery device and an electric device. The battery cell (81) comprises: a casing (10), which comprises an accommodating cavity (11), wherein the casing (10) comprises at least one first wall (13), which is provided with through holes (12); an electrode assembly (20), which is located in the accommodating cavity (11); electrode terminals (30), which are at least partially arranged in the through holes (12) and are electrically connected to the electrode assembly (20), wherein each electrode terminal (30) comprises a first outer wall surface (31) located in the corresponding through hole (12), and both an inner wall surface (121) of the through hole (12) and the first outer wall surface (31) are substantially parallel to a first direction (dr1), the first direction (dr1) being the direction of thickness of the first wall (13); and sealing members (40), which are each located between the inner wall surface (121) of the corresponding through hole (12) and the corresponding first outer wall surface (31), such that the inner wall surface (121) is in sealing fit with the first outer wall surface (31).
Resumen de: WO2026154740A1
This charge/discharge test system is provided with: a charge/discharge control unit that controls charging and discharging for testing a secondary battery; an abnormality detection unit that detects an abnormality related to the test; an event identification unit that identifies an event occurring when the abnormality is detected; and a cause estimation unit that refers to cause case data defining a correspondence relationship between a cause example that may cause an abnormality and an event that may occur when the abnormality is caused by the cause example to estimate the cause of the occurring abnormality detected from the identified event.
Resumen de: WO2026155578A1
The present invention relates to a method for preparing ferric phosphate from waste lithium iron phosphate positive electrodes, and more specifically, to a method for preparing ferric phosphate from waste lithium iron phosphate positive electrodes, the method comprising the steps of: (a) adding a basic solution to a dissolution solution containing Fe and P to precipitate impurities; (b) removing impurities from the dissolution solution; and (c) adding an acidic solution to the dissolution solution removed of the impurities and adjusting the pH to 0.8 to 1.4 to prepare a storage solution containing Fe and P. The present invention has the effect of providing a method for preparing ferric phosphate from waste lithium iron phosphate positive electrodes, wherein precipitates do not form in a storage solution containing Fe and P and prepared by adding an acidic solution to a dissolution solution removed of impurities derived from waste lithium iron phosphate positive electrode materials and adjusting the pH within a predetermined range, even when the storage solution is stored at room temperature for a long period of time, and thus the storage solution is easy to store and transport, and high-purity FePO4 is prepared.
Resumen de: WO2026155906A1
The invention is directed to radiation-curable liquid coating compositions for depositing thermally conductive dielectric coatings; intermediates comprising a substrate having a layer of radiation-curable, optionally dried, coating composition deposited thereon; an adherent layer of thermally conductive dielectric cured coating composition on a substrate, coated substrates and methods of producing the compositions, coatings, coating layers and coated substrates; and in an embodiment to a radiation-curable dielectric coating for adherence to low surface energy substrates which includes a resin matrix, an adhesion promoter, and an acid scavenger, and the coating may be adapted for dielectric protection and thermal diffusion for power conversion systems.
Resumen de: DE102025101823A1
Verfahren zum Herstellen einer Batteriezellenanordnung (10). Die Batteriezellenanordnung (10) weist eine Mehrzahl von Batteriezellen (14) und eine Aufnahme (12) zum Aufnehmen der Mehrzahl von Batteriezellen (14) auf. Jede Batteriezelle (14) weist ein Gehäuse (22) auf. Das Gehäuse (22) weist einen Grundkörper (32) und eine Beschichtung (34) auf. Das Verfahren weist auf: Vorbereiten jeder Batteriezelle (14) der Batteriezellenanordnung (10) auf das Herstellen einer Klebverbindung (20) durch Herstellen einer Mehrzahl von Grübchen (24) in dem Gehäuse (22) mittels eines Laserstrahls, wobei mindestens 20% der Grübchen (24), vorzugsweise jedes Grübchen (24), die Beschichtung (34) durchdringt; Anordnen der Mehrzahl von Batteriezellen (14) in der Aufnahme (12); und Herstellen der Klebverbindungen (20).
Resumen de: WO2026152477A1
Disclosed in the present application are a battery device (1) and an electric device. The battery device (1) comprises a first battery cell (10a) and a second battery cell (10b) which are arranged adjacent to each other, wherein the first battery cell (10a) and the second battery cell (10b) are arranged in a first direction, a first pressure relief mechanism (16a) is provided on the side of the first battery cell (10a) facing the second battery cell (10b), and a second pressure relief mechanism (16b) is provided on the side of the second battery cell (10b) facing the first battery cell (10a). In the same plane perpendicular to the first direction, the orthographic projection of the first pressure relief mechanism (16a) at least partially does not overlap with the orthographic projection of the second pressure relief mechanism (16b). On the basis of increasing the space utilization efficiency, the battery device (1) can lower the risk of rapid propagation of thermal runaway between the first battery cell (10a) and the second battery cell (10b), thereby improving the use reliability.
Resumen de: WO2026155384A1
The present invention relates to a separator for an electrochemical device, the separator having a coating layer comprising a dispersant that comprises i) repeating units derived from a (meth)acrylic acid monomer, a (meth) acrylate salt monomer, or both, and ii) repeating units derived from an acrylic monomer having an amide group. Specifically, by specifying the molar ratio and molecular weight of the repeating units of the dispersant, the present invention improves the dispersibility of inorganic particles in the coating layer and consequently achieves the effects of reducing the electrical resistance of the separator while improving the thermal shrinkage rate.
Resumen de: WO2026152386A1
The present application relates to the field of batteries, and relates to a battery device (100) and an electric device. The battery device (100) comprises: a case (10), wherein a mounting compartment (11) is formed in the case (10), and the mounting compartment (11) accommodates a plurality of battery cells (20); a first energy absorption structure (30) provided in the case (10), wherein at least one side of the mounting compartment (11) is provided with the first energy absorption structure (30), and the first energy absorption structure (30) is located outside the mounting compartment (11); and a second energy absorption structure (40), wherein at least part of the second energy absorption structure (40) is provided in the first energy absorption structure (30).
Resumen de: US20260213323A1
A solid-state battery module and method of manufacturing the same is provided. The method includes providing a housing assembly having first and second endplates, a top panel and a bottom panel; providing a solid-state battery cell stack; arranging the first and second endplates against the solid-state battery cell stack; pre-compressing the solid-state battery cell stack with the first and second endplates; continuing to pre-compress the solid-state battery cell stack until a desired pressure is achieved; and joining, with the solid-state battery cell stack at the desired pressure, the top and bottom panels to the first and second endplates.
Resumen de: WO2026154849A1
A battery pack 100 includes: one or more secondary battery cells 1 each including an outer can having a cylindrical cell side surface 1b and a pair of cell end surfaces 1c forming the end surfaces of the cell side surface, with a gas discharge portion that opens in response to an increase in the internal pressure of the outer can being provided in at least one of the cell end surfaces; and a battery holder 20 having one or more accommodating cylinders 25 that respectively accommodate the one or more secondary battery cells 1. The battery holder 20 comprises: a first holder 21 including first accommodating cylinders 26 for accommodating a portion of each of the secondary battery cells 1; and a second holder 22 including second accommodating cylinders 27 for accommodating another portion of each of the secondary battery cells 1. The battery holder 20 is configured so as to cover the cell side faces 1b in a state in which the first holder 21 and the second holder 22 are joined so that each first accommodating cylinder 26 and each second accommodating cylinder 27 constituting portions of each accommodating cylinder 25 are aligned with one another, and the first holder 21 and the second holder 22 are molded from a thermosetting resin.
Resumen de: US20260213162A1
The present disclosure provides negative electrode active material composite particles that can inhibit volume changes in a battery, as well as a method for producing them, a negative electrode mixture comprising the negative electrode active material composite particles, and a battery comprising the negative electrode mixture. The negative electrode active material composite particles of the disclosure comprise a carbon material and a tin alloy supported in the carbon material. The negative electrode active material composite particles of the disclosure have pores. The aspect ratio of the negative electrode active material composite particles of the disclosure is 1.60 or lower, and the d90 is 10.0 μm or less.
Resumen de: DE102025102003A1
Die Erfindung betrifft eine Deformationssensoreinrichtung (1) für ein Kraftfahrzeug (2), mit einem Trägerelement (3), mit einer an dem Trägerelement (3) angeordneten, elektrisch leitfähigen Drahtstruktur (4), welche mehrere Drahtabschnitte (5, 6, 7, 8, 10) aufweist, wobei zumindest zwei der Drahtabschnitte (5, 6) parallel zueinander elektrisch miteinander verschaltet sind.
Resumen de: WO2026152605A1
An energy storage power supply (100) is disclosed. The energy storage power supply (100) comprises a housing (10), a plurality of battery cells (20), a first electrical connector (30), and an inverter (80). The housing (10) is provided with an accommodating cavity (11), and a side wall of the accommodating cavity (11) is provided with a plurality of fixing slots (51). Each battery cell (20) comprises a battery cell body (21), a positive electrode (22), and a negative electrode (23). At least one of the positive electrode (22) and/or the negative electrode (23) is located at a first end (24) of the battery cell body (21), and the first end (24) of the battery cell body (21) is inserted into a fixing slot (51). The first electrical connector (30) is electrically connected to the positive electrode (22) and/or the negative electrode (23) on the first end (24), and the first electrical connector (30) is provided within the fixing slot (51). The inverter (80) is arranged within the accommodating cavity (10), and is electrically connected to the battery cells (20).
Resumen de: US20260213317A1
0000 A battery pack includes: a battery module including a plurality of battery cells stacked in a predetermined stacking direction and a plurality of separators positioned between two of the battery cells adjacent to each other and sandwiching one of the battery cells in an up-down direction; and a case configured to house the battery module. The case includes: a lower support that supports the separators from below; and an upper holder that holds the separators from above.
Nº publicación: DE102025112862A1 23/07/2026
Solicitante:
FRITZMEIER GEORG GMBH & CO KG [DE]
Georg Fritzmeier - GmbH & Co. KG
Resumen de: DE102025112862A1
Offenbart ist eine Berstscheibe (1;101; 201; 301; 401; 501), die zum Verschließen einer Öffnung (18) eines Gehäuses oder Behälters und zum Freigeben der Öffnung (18) bei einem vorbestimmten Öffnungsdruck eingerichtet und ausgelegt ist. Die Berstscheibe weist eine scheibenartige bistabile Aktivierungsfläche (4) auf, die von einem Anlagerand (10) umgeben ist, an dem eine umlaufende Dichtung (16) befestigt oder gebildet ist. Die Aktivierungsfläche (4) ist von dem vorbestimmten Öffnungsdruck von einer gekrümmten Schließposition über einen Totpunkt in eine gekrümmte Öffnungsposition bewegbar. An der Aktivierungsfläche (4) und an der gesamten Berstscheibe ist eine dem zu dichtenden Gehäuse zugewandte Seite vorgesehen, die als Dichtungsseite bezeichnet wird. An der Aktivierungsfläche (4) sind an dieser Dichtungsseite benachbart zur Dichtung (16) mindestens zwei Schnapphaken (12) gebildet. Die Dichtung 16 läuft um die Schnapphaken (12) um. Die Schnapphaken haben jeweilige Anlagen (12a), die zum Hintergreifen des die Öffnung (18) umgebenden Randes gebildet sind. Die Anlagen (12a) spannen den Rand der Öffnung (18) zusammen mit der Dichtung (16) ein, wenn die Aktivierungsfläche (4) in Schließposition ist.
BOPI
Sede Electrónica
