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1394
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Updated on
23/12/2025 [07:13:00]
Results 225 to 250 of 1394
Absstract of: WO2025259955A1
The present disclosure pertains to redox molecules with structures described herein. The present disclosure also pertains to an electrode that includes the molecules. The electrode may include a cathode. The present disclosure also pertains to an electrochemical cell with a cathode that includes a molecule of the present disclosure. The electrochemical cell may include a solid-state battery that includes: a cathode with a molecule of the present disclosure, an anode, and a solid electrolyte between the cathode and the anode.
Absstract of: WO2025259511A2
A battery pack comprises an enclosure, and a plurality of batteries arranged within the enclosure. Each battery includes one or more electrochemical cells, and a case structured to contain the one or more electrochemical cells in an interior space of the case. Each case comprises a first end wall, an opposite second end wall, and a multi-sided wall connecting the first end wall and the second end wall thereby defining the interior space of the case. A multi-sided wall of the case of at least one of the batteries comprises at least one inwardly directed recess having a first section dimensioned to matingly engage a second section of a multi-sided wall of another of the batteries when the plurality of batteries are arranged within the enclosure.
Absstract of: WO2025256531A1
Provided are a polycyclic compound, and a preparation method therefor and the use thereof, an electrolyte, and a battery. The polycyclic compound comprises: a compound as represented by formula I, and chlorine-containing organic matter. On the basis of the mass of the polycyclic compound, the content of the compound as represented by formula I is greater than or equal to 99 wt%, and the total content of the chlorine-containing organic matter is less than or equal to 300 ppm. In formula I, R1 and R2 are respectively and independently any one of H, F, an alkyl and a fluoroalkyl.
Absstract of: WO2025256498A1
An electrolyte and a lithium metal battery (LMB). The electrolyte comprises a lithium salt, a solvent, a diluent and an additive, wherein the solvent is a phosphate-based solvent and/or a fluorine-containing phosphate-based solvent; the diluent is a fluorinated phosphazene flame retardant; and the additive comprises a fluorinated solvent. Furthermore, the fluorinated phosphazene flame retardant is selected from at least one of hexafluorocyclotriphosphazene, ethyoxyl pentafluorocyclotriphosphazene, trifluoroethyoxyl pentafluorocyclotriphosphazene and (phenoxyl)pentafluorocyclotriphosphazene. Furthermore, the additive further comprises an organic salt. The electrolyte can improve the oxidation resistance of local high-concentration electrolyte, and can also improve the flame retardance of the electrolyte, reduce the viscosity of the electrolyte and improve the wettability thereof, such that an LMB having a high energy density can operate safely and persistently; in addition, the electrolyte can reduce the adverse effect of a phosphate solvent on a lithium metal interface, and effectively improve the lithium-ion deposition/stripping stability, thereby achieving high-stability circulation of a high-voltage lithium metal battery.
Absstract of: WO2025256316A1
The present application relates to an electrode sheet and a preparation method therefor, and an electrode assembly, and a secondary battery. The electrode sheet comprises a current collector, a first active material layer and a tab, wherein the current collector has a first surface; the first active material layer is arranged on the first surface; and the first surface has a first bare foil region, and the tab is arranged in the first bare foil region. The electrode sheet comprises a first adhesive layer. The tab has a first portion and a second portion connected to each other, the first adhesive layer is bonded between the first portion and the first bare foil region, and the second portion is configured to be externally connected to an electronic device. The surface of the first portion facing the first bare foil region has a recess region, and several embedding recesses are recessed in the recess region, wherein in the direction of thickness of the tab, the embedding recesses are recessed relative to the second portion, and the first adhesive layer is embedded in at least some of the embedding recesses. There is no welding burr, and therefore there is no need to provide a tab adhesive on the tab or in the first bare foil region, thereby saving on the space occupied by the tab adhesive, and improving the energy density of the secondary battery while reducing costs.
Absstract of: US2025385325A1
Disclosed is a power electronic intelligent battery unit, including: a battery module, the battery module comprising a plurality of battery cells connected in series and sensors for measuring the voltage, current, pressure and/or temperature of the battery cells; and an intelligent battery interface, the intelligent battery interface being connected to an output side of the battery module and the sensors, and the intelligent battery interface having a power interface and an information interface for the outside, wherein the battery module monitors the voltage, current, pressure and/or temperature information of the battery cells, while providing or absorbing power by means of the intelligent battery interface.
Absstract of: US2025385299A1
The disclosure herein pertains to a pressure regulation system for use in a silicon dominate anode lithium-ion cell. The pressure regulation system regulates a lifetime pressure on the lithium-ion cell in order to correct for capacity loss and mechanical failure due the expansion of silicon during operation. The pressure regulation system along with a housing maintains a certain pressure range on the lithium-ion cells during the cycling and the operational life of the energy storage device.
Absstract of: US2025385303A1
Disclosed is a solid argyrodite electrolyte doped with fluorine (F). In some embodiments, the argyrodite electrolyte has a formula (I), Li7-nPS6-nHan-xFx (I), wherein Ha is a halogen element other than fluorine (F), 0.02≤x<0.1, and 1.0
Absstract of: US2025385302A1
A solid-state battery of the present disclosure includes an electrode body, current collector tabs that are connected to the electrode body, and a protective member. The electrode body has a positive electrode current collector, a positive electrode active material layer, a solid electrolyte layer, a negative electrode active material layer, and a negative electrode current collector that are laminated along a lamination direction. The solid electrolyte layer has a support including a plurality of fibers that are different in material from the protective member. The support projects from an end surface of the solid electrolyte layer. The protective member is connected to the support and disposed at the end surface.
Absstract of: US2025385296A1
Disclosed is a battery module. The battery module includes a battery stack including a plurality of battery cells stacked in a first direction, and one or more pad members provided between the plurality of battery cells, and side plates provided at two opposite sides of the battery stack in the first direction, in which an extension space is formed in the side plate and extends in one direction.
Absstract of: US2025385310A1
An electrochemical apparatus includes a negative electrode plate and an electrolyte. The negative electrode plate includes a negative electrode material layer. The negative electrode material layer includes a silicon-based material. The silicon-based material includes silicon element, and based on a total mass of the negative electrode material layer, a mass percentage of the silicon element is 30% to 60%. The electrolyte includes fluoroethylene carbonate and a compound of formula I. R1 and R2 are each independently selected from hydrogen atom, fluorine atom, substituted or unsubstituted C1-C5 alkyl group, substituted or unsubstituted C6-C10 aryl group, and substituted or unsubstituted C2-C6 carboxylate group, and when substituted, the substituents on the carboxylate group, the alkyl group, and the aryl group are fluorine atoms.
Absstract of: WO2025255979A1
Disclosed in the present application are a battery cell, a battery and an electric device. The battery cell comprises an electrode assembly and a casing, wherein the electrode assembly is located in the casing, and the casing comprises a first side wall and a second side wall; and a first arc-shaped part is connected between the first side wall and the second side wall, the first arc-shaped part being arranged opposite an edge of the electrode assembly. The wall surface of the first arc-shaped part facing the electrode assembly comprises first circular-arc surfaces and a second circular-arc surface; in the lengthwise direction of the edge of the electrode assembly, the first circular-arc surfaces are connected to two ends of the second circular-arc surface, the radius of the second circular-arc surface being smaller than that of the first circular-arc surfaces.
Absstract of: WO2025255960A1
A core-shell ternary precursor and a preparation method therefor, and a positive electrode material. The core-shell ternary precursor comprises a core and a shell that coats the core. The core is expressed as NixCoyMnz(OH)2-a(WO4)a, wherein x is greater than 0, but less than 1; y is greater than 0, but less than 1; z is greater than 0, but less than 1; x+y+z=1; and the value range of a is 0.01-1. The shell contains aluminum. By means of a combination of tungsten doping and aluminum doping, the advantages of the both are incorporated, and a high-performance precursor is prepared. In addition, the core-shell precursor can effectively improve the surface structure of a precursor, suppress the propagation of cracks on the surface of a high-nickel large-particle precursor, and also effectively inhibit the corrosion of a positive electrode material by an electrolyte, thereby prolonging the battery life.
Absstract of: WO2025256003A1
The present application discloses a thermal lamination device. The device comprises a lamination roller assembly; the lamination roller assembly comprises two lamination rollers; the surface of at least one lamination roller is provided with a protruding structure used for thermally laminating a separator at an end of an electrode sheet during rotation; the two lamination rollers have a first gap (S1) formed therebetween at the protruding structure, and a second gap (S2) formed therebetween at other positions, wherein the first gap S1 is smaller than the second gap S2. The thermal pressing area of the thermal lamination rollers in the present application is small, thereby facilitating subsequent electrolyte injection.
Absstract of: WO2025255710A1
Provided are a carbon-based cathode material for batteries, a preparation method, and a dual-ion battery. The preparation method for the carbon-based cathode material for batteries comprises the following steps: performing carbon deposition to prepare an upright carbon material by means of using microwave plasma chemical vapor deposition, then etching the upright carbon material using an etching gas containing oxygen, and repeating the carbon deposition and etching to obtain the carbon-based cathode material for batteries. The vertical open structure of the carbon-based cathode material for batteries can directionally guide anions and electron transport by reducing the lengthy carrier transport path, so as to improve mass and charge transfer kinetics; moreover, the carbon-based cathode material for batteries has large interlayer spacing and an ordered spatial structure, which can further enhance kinetic performance, achieving fast charging capability and long cycle life for a battery.
Absstract of: WO2025259852A1
Described herein is an electrochemical device including a first current collector; a composite anode architecture disposed on the first current collector, wherein the composite anode architecture comprises one or more mixed ionic-electronic conductors, one or more alkali metal salts, wherein at least one alkali metal of the alkali metal salts is different from a working alkali metal; and a solid electrolyte disposed on the composite anode architecture. In some embodiments, the electrochemical device further includes a composite cathode disposed on the solid electrolyte and a second current collector disposed on the composite cathode.
Absstract of: WO2025259856A1
Electrodialysis is used with selective and bipolar ion-exchange membranes to recycle cations, such as lithium from spent lithium-ion batteries. The process focuses on two key stages: (a) selective electrodialysis (SED) to isolate selected cations, such as lithium, from multivalent transition metals to produce a selected-cation-enriched stream and (b) bipolar membrane electrodialysis (BMED) to produce a purified selected-cation-hydroxide stream and a hydrochloric acid stream from the selected-cation-enriched stream.
Absstract of: WO2025259070A1
An electrolyte for a lithium secondary battery according to embodiments of the present disclosure comprises a lithium salt and a compound containing at least two sulfonate groups and at least one cyclic group. A lithium secondary battery according to embodiments of the present disclosure comprises: an electrode assembly including at least one positive electrode and at least one negative electrode; and the electrolyte.
Absstract of: WO2025259067A1
The present invention relates to a fire-extinguishing agent for a metal fire, and a preparation method therefor. The fire-extinguishing agent of the present invention absorbs exploding heat when a metal fire occurs, and thus is effective for the early suppression of the fire, and forms a glass film over the point of origin of the metal fire, thereby maximizing an oxygen blocking and smothering effect. Particularly, the fire-extinguishing agent of the present invention is a highly eco-friendly fire-extinguishing agent which is highly eco-friendly, completely harmless to the human body, and does not generate any toxic substances at a high temperature at which a fire occurs. The fire-extinguishing agent of the present invention may be used in place of a pouch and a blanket capable of suppressing a lithium battery fire and a metal fire, a filler for a cover for suppressing an electric vehicle fire, and water in a settling tank for extinguishing an electric vehicle fire.
Absstract of: WO2025259066A1
A separator according to the present invention can not only exhibit excellent adhesion to an electrode but also be manufactured as a thin film, leading to superior resistance and ion conductivity properties. Additionally, compared with existing mass-produced products, the separator shows improved coating appearance quality, thereby ensuring yield enhancement.
Absstract of: WO2025256250A1
Disclosed in the present application are a negative electrode active material and a preparation method therefor, a secondary battery, and an electric device. The negative electrode active material comprises negative electrode active material particles, which comprise a first phase and a second phase, wherein the X-ray diffraction pattern of the first phase has a first diffraction peak when 2θ falls within the range of 20.5-22°, the peak area of the first diffraction peak being S1; and the X-ray diffraction pattern of the second phase has a second diffraction peak when 2θ falls within the range of 22-24.5°, the peak area of the second diffraction peak being S2. The negative electrode active material particles satisfy the following conditions: 40%
Absstract of: WO2025256275A1
A secondary battery and an electronic device, relating to the technical field of new energy. The secondary battery comprises a positive electrode, a negative electrode, an electrolyte, and a separator; the separator comprises a polyolefin substrate and a coating provided on at least one surface of the polyolefin substrate, and the coating comprises boehmite; the electrolyte contains specific amounts of 1,3-propane sultone, 1,3,6-hexanetricarbonitrile, lithium difluorophosphate, a boron-containing lithium salt, and adiponitrile, and the total amount of 1,3-propane sultone and 1,3,6-hexanetricarbonitrile, the total amount of lithium difluorophosphate and the boron-containing lithium salt, and the content of adiponitrile are all within specific ranges. In this way, the secondary battery can maintain a high energy density, have long high-voltage service life, and also have good safety.
Absstract of: WO2025256066A1
The present invention belongs to the technical field of battery separator binders, and relates to a lithium-ion battery ceramic separator binder, a preparation method therefor, and a use thereof. The technical problem resolved by the present invention is providing a lithium-ion battery ceramic separator binder. The binder comprises a graft polymer and a water-soluble polymer. The graft polymer has an acrylamide polymer as the main chain, to graft polymer latex particles, and the polymer monomers of the polymer latex particles comprise acrylate monomers. The binder of the present invention has good anti-curling performance; when used to prepare ceramic slurry-coated separators, the binder can prevent the occurrence of curling in the separator. Moreover, the binder of the present invention can be prepared using an aqueous solution polymerization method, having a simple preparation process, good process and product stability, and a production process that can effectively interface with the production process of ceramic separator slurry, thereby optimizing the production process of lithium-ion battery ceramic separators.
Absstract of: WO2025256126A1
Disclosed in the present application are a battery cell, a battery and an electric device. The battery cell comprises a casing, a conductive member, a first insulating member and a terminal post, wherein the casing has a first wall; the conductive member is arranged on the outer side of the first wall; and the first insulating member is arranged between the first wall and the conductive member to insulate the conductive member from the first wall. The terminal post is connected to the conductive member. The battery cell further comprises a protective member. In the direction of thickness of the first wall, at least part of the protective member is arranged between the first insulating member and the conductive member, the melting point of the protective member being higher than that of the conductive member. By means of the provision of the protective member between the first insulating member and the conductive member, burning deformation of the first insulating member is alleviated, reducing the risk of failure of the first insulating member, and improving the reliability of the battery cell. In addition, the provision of the protective member enables a reduction in the thickness of the conductive member, thereby reducing the space occupied by the conductive member in the direction of thickness of the first wall, improving the energy density of the battery cell.
Nº publicación: WO2025258923A1 18/12/2025
Applicant:
LG ENERGY SOLUTION LTD [KR]
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Absstract of: WO2025258923A1
The present invention provides a battery cell defect inspection system comprising: a voltage measurement unit (200) for measuring a first voltage (V1) and a second voltage (V2) of a target battery cell in a no-load state at a predetermined time interval; a capacity calculation unit (300) for calculating a capacity change amount corresponding to a voltage change from the first voltage (V1) to the second voltage (V2) by using first correlation information, which is pre-stored correlation information between the voltage and capacity of a reference battery cell; and a defect inspection unit (400) for inspecting the defect of the target battery cell on the basis of the capacity change amount. The first correlation information may be obtained by discharging the reference battery cell at a speed greater than 0 and less than or equal to a value obtained by multiplying a first speed by P (P=2). An absolute value of a voltage difference (E) between bottoms (B) corresponding to each other or a voltage difference (E) between peaks (P) corresponding to each other of two differential profiles respectively corresponding to the two pieces of correlation information obtained while discharging the reference battery cell at the first speed and a second speed obtained by multiplying the first speed by r (0<=r<= 1/2) may be d (d=|V1-V2|*q, q=1/30) or less.
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