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867
results.
Updated on
27/12/2025 [07:21:00]
Absstract of: EP4668427A1
The present invention relates to a secondary battery including an electrode assembly, an exterior film having an inner space which accommodates the electrode assembly, and an exterior opening which allows the inner space to communicate with outside, and a cover member which covers the exterior opening of the exterior film, wherein the cover member includes a first member which blocks the exterior opening, and a second member which extends from the first member and is coupled to an inner surface of the exterior film.
Absstract of: EP4668363A1
The present invention relates to a positive electrode active material including a lithium transition metal oxide in a form of a single particle, and a positive electrode and a lithium secondary battery which include the same, and to a single particle type positive electrode active material, wherein the lithium transition metal oxide in the form of a single particle includes an outer boundary forming an outline of the particle and an inner boundary formed in the particle, and satisfies that 0 < length of the inner boundary/length of the outer boundary < 0.4.
Absstract of: EP4668362A1
The present invention relates to a positive electrode active material including a lithium transition metal oxide in a form of a single particle, and a positive electrode and a lithium secondary battery which include the same, and to a single particle type positive electrode active material, wherein the lithium transition metal oxide in the form of a single particle includes an outer boundary forming an outline of the particle and an inner boundary formed in the particle, and satisfies that length of the inner boundary/length of the outer boundary ≥ 0.4.
Absstract of: EP4668438A1
A battery box (2), a battery (100), a battery mounting frame (10), a vehicle frame, and an electric apparatus, where the battery box (2) includes: a box body (20); and a first buffer member (21), arranged on an outer wall surface (201) of the box body (20), where the first buffer member (21) has a first buffer surface (211) facing away from the interior of the box body (20), and the first buffer surface (211) is configured as intersecting with both a horizontal plane and a vertical plane perpendicular to the horizontal plane.
Absstract of: EP4668458A1
Disclosed in the present application are a separator, a preparation method for a separator, and an electrochemical device. The separator comprises a bonding layer, and a base film and a gel film which are respectively arranged on two sides of the bonding layer. In the present application, the gel film has relatively good ductility and deformation resistance, is not prone to be being pierced or still completely covers a pierced position after being pierced, such that the separator still plays a role in separating positive and negative electrodes; and the base film has relatively good shape-retaining capability and self-supporting performance. The base film and the gel film are respectively provided on the two sides of the bonding layer, such that the gel film and the base film are bonded into a whole under the bonding action of the bonding layer, and thus when there is an external force acting in the vertical direction of the separator, the separator deforms but is not prone to breaking, thereby delaying the breakage of the separator and improving the stability and safety of a battery.
Absstract of: EP4668534A1
This application discloses a charging method and apparatus, and an electronic device, and belongs to the field of communication technologies. The charging method includes: in a process of detecting, based on a target voltage level sequence, whether a charger supports a first fast charging protocol, when a first signal line of a charging interface of the electronic device is at a high level, configuring the first signal line as a receive signal line in a universal asynchronous receiver/transmitter UART serial port mode, and configuring a second signal line of the charging interface as a transmit signal line in the UART serial port mode; performing, when a first data packet supporting a second fast charging protocol is received from the charger within a first duration, charging according to the second fast charging protocol; and performing charging according to the first fast charging protocol when the first data packet is not received within the first duration.
Absstract of: EP4668366A1
The invention provides a lithium secondary battery capable of self-poisoning, which includes a positive active material, a negative active material, an electrolyte located between the positive active material and the negative active material to allow lithium ions move therebetween, and a poisonous agent, including an initiating-reaction catalyst and a dopant. The dopant has a phosphorus-oxygen bond, a boron-oxygen bond or a sulfur-oxygen bond exposed at the free end, or a phosphorus-oxygen bond, a boron-oxygen bond or a sulfur-oxygen bond that is not exposed at the free end and is shielded by an organic or inorganic group. When the temperature of the lithium secondary battery reaches a first predetermined temperature, the dopant will react with the initiating-reaction catalyst to release at least one phosphorus-oxygen bond, boron-oxygen bond or sulfur-oxygen bond with free radicals or unsaturated bonds. Therefore, the positive active material of the lithium secondary battery will be contaminated to make the lithium secondary battery harmless.
Absstract of: EP4668392A1
The invention provides a lithium secondary battery capable of self-poisoning, which includes a poisonous agent releasing iodine molecules in the lithium secondary battery. The unstable lithium atoms in the lithium secondary battery would be transformed into stable lithium compounds or lithium ions before the temperature of the lithium secondary battery reaches the abnormally high temperature caused by itself. The negative active material of the lithium secondary battery is deactivated to avoid thermal runaway of the lithium secondary battery.
Absstract of: EP4668465A1
A current collecting assembly, an energy storage apparatus, and an electric device. The current collecting assembly comprises a first connecting member and a second connecting member; the first connecting member comprises a first connecting portion, a second connecting portion, and a conducting portion; the conducting portion is provided with at least one first reinforcing rib and at least one second reinforcing rib, the first reinforcing rib protrudes out of a first surface of the conducting portion, and the second reinforcing rib protrudes out of a second surface of the conducting portion; the second connecting portion is mechanically connected to the surface of the second connecting member, and after the second connecting portion rotates, the second connecting member is located on the side of the second connecting portion facing away from the conducting portion.
Absstract of: EP4667543A1
A coating composition for a separator membrane, a composite separator membrane, a battery cell, a battery, and an electrical appliance, the coating composition for a separator membrane comprising: porous phenolic resin microspheres and a binder, the mass ratio of the binder to the porous phenolic resin microspheres being between 1:1 to 1:20. By using the described coating composition, a coating may be prepared on the surface of a base membrane to obtain a composite separator membrane, which may effectively reduce the thermal shrinkage rate of the base membrane and improve the safety of a battery cell. In addition, since no significant impact is made on the gas permeability of the base membrane, the composite separator membrane obtained thereby exhibits excellent ionic conductivity. Therefore, the battery cell may have a high capacity retention rate while ensuring good safety performance.
Absstract of: EP4668401A1
The present application discloses an electrolyte for a lithium secondary battery, a secondary battery, and an electric device. The electrolyte for a lithium secondary battery includes a sulfate ester and difluorophosphate ions, a molar ratio of the sulfate ester to the difluorophosphate ions is (0.2 to 30):1, and a molar concentration of the sulfate ester is 0.04 mol/L to 0.16 mol/L.
Absstract of: EP4668359A1
The present application provides a sodium-doped lithium-rich metal oxide material and a preparation method thereof, a positive electrode material, a positive electrode plate, a battery, and an electric apparatus. The sodium-doped lithium-rich metal oxide material includes a compound Li<sub>m-x</sub>Na<sub>x</sub>MO<sub>y</sub>. The sodium-doped lithium-rich metal oxide material of the present application facilitates reducing the resistance to lithium-ion extraction from the crystal lattice, thereby increasing the charging capacity of the battery.
Absstract of: EP4668413A1
A battery pack includes enclosure plates (1), a liquid cooling plate (2) and battery cells (3). The battery cells (3) are mounted on the liquid cooling plate (1), the enclosure plates (1) surround the liquid cooling plate (2) and the battery cells (3), and the liquid cooling plate (2) is connected to the enclosure plates (1); an accommodating cavity (4) is provided between the enclosure plates (1) and the battery cells (3); the liquid cooling plate (2) is connected with an outlet pipe (20) and an inlet pipe (21), and the outlet pipe (20) and the inlet pipe (21) are both located in the accommodating cavity (4); a top surface and a bottom surface of an enclosure plate (1) are each provided with a connecting component.
Absstract of: EP4668447A1
A ventilation device and a battery package including the same are disclosed. The ventilation device according to the present invention includes: a deflector covering the through-hole part in a flowing direction to change a direction of travel of the exhaust gas; a cooling plate provided with a through-hole part where the exhaust gas to pass through and dissipating heat of the exhaust gas; and a ventilation filter installed at the through-hole part of the cooling plate to filter the exhaust gas deflected by the deflector;
Absstract of: EP4668402A1
The present disclosure relates to the technical field of batteries, in particlular to an eclectroyte and a battery comprising the electrolyte. The electrolyte comprises a first additive having a structure as represented by formula (I) and a second additive having a structure represented by formula (II), where R<sub>1</sub>, R<sub>2</sub>, and R<sub>3</sub> are each independently selected from formula (a), formula (b), formula (c), and formula (d); R<sub>4</sub>, R<sub>5</sub>, and R<sub>6</sub> are each independently selected from C1-C10 alkyl, C2-C10 alkenyl, and C1-C10 alkoxy; X is selected from hydrogen, halogen, C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, C1-C4 cyano; and n is 1, 2, 3, or 4. A SEI film formed by the electrolyte of the present disclosure can improve the stability and the ionic conductivity of an interface film, and has higher safety. The battery of the present disclosure has higher safety performance and more stable long cycle performance.
Absstract of: EP4668440A1
Disclosed in the present application is a battery case, comprising at least: a fixing base, which is provided with a protrusion or a sealing frame on a top face thereof; at least one battery cell, which is arranged on the fixing base, the protrusion or the sealing frame being provided on a top face and a bottom face of the battery cell, respectively; a sealing member, which is located between a surface on which the protrusion is located and the sealing frame, and is pressed by the surface on which the protrusion is located and the sealing frame; and a switch module, which is arranged on the battery cell, the protrusion or the sealing frame being provided on the surface of the switch module that is in contact with the battery cell, wherein the fixing base and/or the switch module abut against the battery cell by means of the protrusion or the sealing frame. The battery case disclosed in the present application has an improved waterproof sealing performance.
Absstract of: EP4668416A1
Provided in the present application are an energy storage system and a self-heating method therefor. By means of the self-heating method for an energy storage system, when a battery temperature of the energy storage system is lower than a preset allowable operation temperature, an electric energy conversion apparatus is controlled to operate in a reactive operation mode; since a cooling liquid of the energy storage system can realize heat conduction with the electric energy conversion apparatus and a battery pack, heat brought about by the operation of the electric energy conversion apparatus can replace a heating apparatus in the prior art to heat the cooling liquid; the battery pack is then heated by means of the flow of the cooling liquid; and after the battery temperature reaches the preset allowable operation temperature, the electric energy conversion apparatus can be controlled to operate in a normal operation mode. Therefore, by means of the present application, a heating apparatus in the prior art can be omitted, thereby saving on costs; and a heating time can be shortened, thereby improving efficiency.
Absstract of: EP4667402A1
Disclosed is a slitting apparatus, comprising an unwinding device, a first slitting device, a first conveying device, a second slitting device and a plurality of winding devices. The unwinding device is configured for outputting a pole piece material strip; the first slitting device is configured for receiving the pole piece material strip output by the unwinding device and slitting a foil area of the pole piece material strip to form a plurality of sub-material strips; the first conveying device is configured for receiving the plurality of sub-material strips and outputting them after arranging them spaced apart from each other and laid flat; the second slitting device is configured for receiving the plurality of sub-material strips which are arranged spaced apart from each other and laid flat, and slitting coating areas of the sub-material strips to form a plurality of pole pieces; and the plurality of winding devices are connected to the second slitting device, and are configured for winding the plurality of pole pieces. The slitting apparatus of the present disclosure disclose needs fewer tools, lower equipment cost, a smaller equipment, and a smaller footprint.
Absstract of: EP4667862A1
A heat exchange plate includes a first side plate (1) and a second side plate (2) arranged opposite to the first side plate. The first side plate (1) is of an aluminum structure or an aluminum alloy structure. A groove (3) for forming a heat exchange channel (7) is formed in one side of the second side plate (2) facing the first side plate (1). The second side plate (2) includes a main body layer (21) and a protective layer (22) located between the main body layer (21) and the first side plate (1). A thickness of the second side plate (2) located in an area outside the groove (3) is g mm, a depth of the groove (3) is d mm, and a thickness of the protective layer (22) located in the area outside the groove (3) is x mm, x×0.01×(1-(4.55d-5.36)) > λ×g, and λ is equal to 10%.
Absstract of: EP4668426A1
A cover plate assembly includes a cover plate body (1), a pole (2) and a fixing structure (3), wherein the pole (2) is provided on the cover plate body (1); and the fixing structure (3) is fixed on the cover plate body (1), the fixing structure (3) includes a plurality of hems (31), the plurality of hems (31) are provided at intervals around one same pole (2), and the hems (31) are used for fixing the pole (2), wherein each of the hems (31) includes an outer edge (313) remote from the pole (2), a maximum distance between the outer edges (313) of different hems (31) is D, and a maximum width of the cover plate body (1) is L, wherein D/L is 1-2.
Absstract of: EP4668531A1
Embodiments of this application provide a battery and a power consumption system. After the battery is connected to a load, to make full use of an available capacity of a cell group, a processor in the battery may determine an open-circuit voltage of the cell group or a state of capacity of the cell group. A DC-DC conversion circuit supplies power to the load in a first discharge mode or a second discharge mode based on the determined open-circuit voltage of the cell group or the determined state of capacity of the cell group. The first discharge mode is supplying power to the load based on a discharge curve of the cell group, the second discharge mode is supplying power to the load based on a first specified voltage, and the first specified voltage is within a working voltage range of the load.
Absstract of: EP4668442A1
The invention provides a battery box capable of being stacked layer by layer and a battery system. The battery box is configured as a box structure. Threaded holes are circumferentially formed in an upper portion of the battery box, and unthreaded screw mounting holes corresponding to the threaded holes are formed in a lower portion of the battery box. Screw fasteners penetrate through the unthreaded screw mounting holes of an upper battery box and the threaded holes of a lower battery box to fixedly connect the upper battery box and the lower battery box. A battery frame is eliminated, and the upper battery box is directly stacked on the lower battery box, such that the space utilization of battery boxes in the battery system is greatly increased, and a vehicle can be loaded with more batteries under the same volume; by adopting this technical solution, the cooling system can also exert a benefit effect on the tops of batteries, thus improving heat management efficiency; in addition, the technical solution facilitates connection of wires and water lines between the battery boxes.
Absstract of: EP4668380A1
The present disclosure provides an electrode assembly comprising:a laminate body including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, and one or more pairs of tapes for fixing the exterior of the laminate body,wherein the pair of tapes includes non-overlapping portions that do not overlap with each other, and overlapping portions that overlap with each other, andwherein a width of the non-overlapping portions is larger than a width of the overlapping portions, and a secondary battery comprising the same.
Absstract of: EP4668455A1
A battery separator and a preparation method therefor, and a secondary battery and an electric device, which relate to the field of batteries. The battery separator comprises a base film 10 and a coating 20, wherein the coating 20 is arranged on a surface of the base film 10 on the side that faces a cathode of a battery, and the materials of the coating 20 comprise a conductive material and an insulating material. When the battery separator which is obtained by arranging the coating 20 on the surface of the base film 10 on the side that faces the cathode of the battery is applied to a lithium battery, and when lithium dendrites grow to completely penetrate the side of the base film 10 which is not provided with the coating 20, the lithium dendrites are intercepted by the arranged coating 20, and do not come into direct contact with the cathode; moreover, a low-current micro-short circuit is formed by the coating 20, thereby extending the time from a short circuit to a serious accident occurring.
Absstract of: EP4668464A1
A busbar assembly, a cylindrical power battery module, and a battery pack are provided. The busbar assembly includes: an input bar connected to a battery cell at an input end of a cylindrical power battery module; an output bar connected to a battery cell at an output end of the cylindrical power battery module; current conduction bars arranged between the input bar and the output bar and configured to work in conjunction with the input bar and the output bar to connect in series in a first direction two adjacent battery cells arranged in the first direction and connect in parallel in a second direction two adjacent battery cells arranged in the second direction; and a wiring harness member, where an input end thereof is connected to at least one of the input bar, the output bar, the current conduction bars, and multiple battery cells
Absstract of: EP4668344A1
This application provides a positive electrode active material, a preparation method thereof, and a positive electrode plate, a battery, and an electric apparatus including the same. The positive electrode active material includes a layered transition metal oxide represented by Formula (I), with parameters as defined herein. The positive electrode active material includes a K element, and an amount of the K element decreases from a particle surface to a particle interior of the positive electrode active material. NaxKyMaAbBcOmQn Formula (I)
Absstract of: EP4668460A1
Battery module (10) and battery pack are provided. Battery module (10) includes: body and second conductive sheet (2). Body has first conductive sheet (13) and electrode base. Second conductive sheet (2) has one end connected to first conductive sheet (13) and fixed to electrode base and other end configured to be connected to adjacent battery module (10). Second conductive sheet (2) is provided with first groove (21), first conductive sheet (13) extends into first groove (21), and conductive block (3) is further provided between first groove (21) and first conductive sheet (13). First conductive sheet (13) extends into first groove (21), which increases contact area between first and second conductive sheets, reduces resistance among battery modules, reduces amount of heat from second conductive sheet (2), and improves efficiency of transfer of current among battery modules (10). Conductive block (3) is provided between first groove (21) and first conductive sheet (13), which increases cross-sectional area at junction between second and first conductive sheets, and further reduces resistance among battery modules.
Absstract of: US2025087748A1
A composition for an electrolyte, in a precured state, can include polymeric precursor(s), salt(s), optional plasticizer(s), optional additive(s), optional inhibitor(s), and optional initiator(s). The salt(s), additive(s), inhibitor(s), and/or initiator(s) can additionally or alternatively act as plasticizers. The composition can be used to form a gel electrolyte (e.g., in the activated state) such as within a charge storage device (e.g., battery).
Absstract of: WO2024173731A1
An example embodiment includes a battery having a plurality of battery modules, each battery module comprising a plurality of battery cells; a pressure control system configured to provide fluid having a target fluid pressure that achieves a target pressure to be applied to respective battery cells of a battery module; and a thermal control system configured to supply coolant to the battery module to achieve a target temperature.
Absstract of: EP4668423A1
A secondary battery includes a cylindrical case, an electrode assembly accommodated in the cylindrical case, and a cap plate electrically connected to the electrode assembly and configured to seal the cylindrical case, wherein the cap plate includes a first flat portion at a center thereof, a second flat portion outside the first flat portion, and a connecting portion between the first flat portion and the second flat portion, and wherein a height of a top surface of the first flat portion is higher than a height of a top surface of the second flat portion.
Absstract of: EP4668406A1
Disclosed is an all-solid-state lithium-ion secondary battery in which a current collector contained in a lithium-free negative electrode is surface-treated with a lithium-friendly material, so that the surface-treated material induces a uniform lithium plating reaction on the current collector even during fast charging, thereby improving the performance. The all-solid-state lithium-ion secondary battery comprises a positive electrode, a solid electrolyte layer, a negative electrode current collector, and a negative electrode active material layer disposed between the solid electrolyte layer and the negative electrode current collector, wherein the negative electrode current collector comprises a base material; and a lithium-friendly layer located on a surface of the base material.
Absstract of: EP4667542A1
Provided are an aqueous coating composition, an aqueous pole piece, and an aqueous battery. The aqueous coating composition includes an aqueous binder and a solvent, the aqueous binder includes a first polymer, and the first polymer includes a structural unit represented by formula (1) and a structural unit represented by formula (2); in formula (1), R<sub>1</sub>, R<sub>2</sub> and R<sub>3</sub> are each independently hydrogen, a halogen, an alkyl, a hydroxyalkyl, an alkoxylate, a cycloalkyl, an alkenyl, an alkynyl, a heterocycloalkyl, an aryl, a heteroaryl, a hydroxyl, a cyano group or a nitro group, and L is a connecting bond or a C1-10 alkylene group; in formula (2), R<sub>4</sub>, R<sub>5</sub> and R<sub>6</sub> are each independently hydrogen, a halogen, an alkyl, a hydroxyalkyl, an alkoxy, a cycloalkyl, an alkenyl, an alkynyl, a heterocycloalkyl, an aryl, a heteroaryl, a hydroxyl, a cyano group or a nitro group, and n = 2-12. The aqueous coating composition can improve the adhesion and water resistance of an aqueous coating, thereby improving the safety performance and cycle performance of an aqueous battery.
Absstract of: EP4668462A1
Another embodiment of the present invention provides a lead tab comprising: a metal substrate including copper; a nickel-plated layer disposed on both sides of the metal substrate; and a metal layer on the nickel-plated layer, wherein the metal layer comprises 70 to 99.9 wt% of chromium and wherein the lead tab has an adhesive strength of 1.4 N/mm or more.
Absstract of: EP4668463A1
Another embodiment of the present invention provides a lead tab comprising: a metal substrate including copper; a nickel-plated layer disposed on both sides of the metal substrate; and a metal layer on the nickel-plated layer, wherein the metal layer comprises 70 to 99.9 wt% of chromium and wherein the lead tab has a welding strength of 48 kgf/mm<sup>2</sup> or more.
Absstract of: EP4668468A1
The present invention provides a lead tab including: a metal substrate including copper; a nickel-plated layer laminated on both sides of the metal substrate; and a metal layer on the nickel-plated layer, wherein the metal layer contains 70 to 99.9 wt% of chromium and wherein the lead tab has a gloss of 60 to 100 (Gs 60°), and has a water contact angle of 60 to 80°.
Absstract of: EP4668396A1
An electrolyte includes a compound represented by formula I, allowing for its reduction on a surface of a negative electrode plate to form a negative electrode interface protection layer, thereby reducing the side reactions between the negative electrode plate and the electrolyte. Moreover, a nitrogen atom in a pyridyl group of the compound represented by formula I is capable of stabilizing high-valence transition metal elements in a positive electrode plate, reducing the side reactions between the positive electrode plate and the electrolyte, and stabilizing an interface of the positive electrode plate.
Absstract of: EP4668369A1
Disclosed are a positive electrode, a preparation method thereof, and a rechargeable lithium battery including the same, the positive electrode including a positive electrode current collector; and a positive electrode active material layer located on the positive electrode current collector and including a positive electrode active material, a binder, and a conductive material; wherein the binder includes a first binder and a second binder, the first binder is a hydrogenated nitrile butadiene rubber, the second binder includes an imide-based binder, and the positive electrode active material layer includes about 300 to about 1,300 parts by weight of the second binder based on 100 parts by weight of the first binder.
Absstract of: WO2024173390A2
A lithium-ion battery cell includes an anode having a plurality of spaced apart lithium storage layer segments in electrical contact with the anode current collector, wherein the lithium storage layer segments include at least 40 atomic % silicon, tin, germanium; or a combination thereof. The cell includes a cathode having a cathode active material layer in electrical contact with a cathode current collector. The cell also includes a lithium-ion-containing solid-state electrolyte (SSE) that is i) interposed between the plurality of spaced apart lithium storage layer segments and the cathode active material, and ii) provided at least partially within gaps separating the spaced apart lithium storage layer segments. Methods of making the lithium-ion battery cell are also described.
Absstract of: WO2024173390A2
A lithium-ion battery cell includes an anode having a plurality of spaced apart lithium storage layer segments in electrical contact with the anode current collector, wherein the lithium storage layer segments include at least 40 atomic % silicon, tin, germanium; or a combination thereof. The cell includes a cathode having a cathode active material layer in electrical contact with a cathode current collector. The cell also includes a lithium-ion-containing solid-state electrolyte (SSE) that is i) interposed between the plurality of spaced apart lithium storage layer segments and the cathode active material, and ii) provided at least partially within gaps separating the spaced apart lithium storage layer segments. Methods of making the lithium-ion battery cell are also described.
Absstract of: EP4666885A1
An aerosol generating device includes a heater configured to heat an aerosol generating material, a battery that is rechargeable and configured to supply power to the heater, and a processor configured to control charge of the battery from an external power supply and configured to control an output of the battery to control a temperature of the heater, wherein the processor is further configured to monitor charge-discharge cycles of the battery and control a full charge voltage when charging the battery and the output of the battery, based on the charge-discharge cycles.
Absstract of: EP4668393A1
The present disclosure provides a nonaqueous lithium power storage element in which the positive electrode active substance layer contains lithium iron phosphate and a carbon material containing activated carbon as the positive electrode active substance. When the content of carbon material in the positive electrode active substance layer is X<sub>1</sub> (mass%) and the lithium iron phosphate content is X<sub>2</sub> (mass%), the lithium iron phosphate mass ratio (X<sub>2</sub>/(X<sub>1</sub>+X<sub>2</sub>)) is 0.40 to 0.85. The total pore volume of the positive electrode active substance layer is 0.29 cc/g to 0.70 cc/g, the void diameter D25 of the positive electrode active substance layer is 0.34 µm to 0.64 µm, the void diameter D75 of the positive electrode active substance layer is 0.10 µm to 0.20 µm, and the difference between the void diameter D25 and the void diameter D75 (D25-D75) is 0.20 µm to 0.45 µm.
Absstract of: WO2024173471A1
An iron anode employs an electrolyte for generating an anode reaction to convert between Iron II and Iron III ions, denoted by Fe(OH)2 and FeOOH, rather than tending towards formation of highly stable Fe3O4, which can tend to cause "dead" regions in the battery. A suitable battery chemistry includes iron-air and other iron metal batteries operable with an aqueous electrolyte and employing oxygen and water cathodes. The iron anode battery employs inexpensive available iron, rather than more expensive and/or volatile materials used in Li-ion and lead-acid batteries. An aqueous electrolyte formed from sodium hydroxide and silicates, optionally with potassium or chloride salts, forms an anode reaction with nanostructured iron oxide particles in a safe and stable battery chemistry which is readily scalable for grid storage.
Absstract of: EP4668398A1
The present application provides a positive electrode active material, a preparation method thereof, and a positive electrode plate, a battery cell , a battery, and an electric device containing the same, where the positive electrode active material includes a matrix and a sodium-rich layer formed in situ on the surface of the matrix, the matrix includes a sodium-containing layered transition metal oxide, and the sodium-rich layer includes one or more of sodium salts represented by Formula (I) and Formula (II), where m represents an integer from 1 to 8, and n represents an integer from 2 to 20.
Absstract of: CN120677209A
The present disclosure relates to a flame retardant powder coating composition comprising: a) a film forming component; b) a source of phosphoric acid; and c) a filler material comprising clay, calcium carbonate, aluminum hydroxide or clay and silica. The present disclosure also discloses a substrate coated with the powder coating composition and a method of coating a substrate.
Absstract of: US2025360653A1
Set forth herein are materials, systems, and methods for sintering bilayers that include a layer of a metal and a layer of a ceramic.
Absstract of: CN120604314A
A separator for an electrochemical element is shown comprising fibrillated regenerated cellulose fibers wherein the fibrillated regenerated cellulose fibers constitute at least 75% of the mass of the separator. The quantity of the separator is at least 8 g/m2 and at most 17 g/m2, and the bulk of the separator is at least 12 mu m and at most 40 mu m. The membrane has uniformity in terms of its thickness and fibrous structure, characterized in that there are both the following features (i) and (ii): (i) the ratio of the bulk of the membrane to the monolithic thickness of the membrane is at least 0.88 and at most 1.04, and (ii) the contrast value C determined by image analysis is at least 1000 and at most 1600.
Absstract of: WO2024170765A1
A battery pack (30), related methods and to a transport refrigeration unit of a type configured to draw power from rechargeable batteries in cooling the interior of a mobile enclosure, such as in a trailer or lorry. The battery pack (30) comprises a framework (20) by which the pack is mounted in use and a battery compartment (40) for plural rechargeable battery cells (41). The framework may include at least one shelf for supporting the plural battery cells in the compartment, the shelf having at least one fluid flow channel (67) therein and the battery pack comprises at least one fluid movement device (62) arranged to move cooling fluid through the at least one channel to cool the battery cells in use. The framework may include plural vertically spaced shelves for supporting rows of the plural battery cells in the compartment, wherein the battery cells are orientated such that the terminals for connecting to the cells vertically on top.
Absstract of: WO2024170686A1
The invention relates to a battery housing cover (18) for covering at least one battery cell (10), comprising a main part (20), with at least one section (22) comprising a fibre composite with an oxide matrix being arranged on the main part (20). The invention also relates to a method for producing a battery housing cover (18), and an assembly comprising a battery cell (10) and a battery housing cover (18), the production of an assembly of this type, an electric vehicle and the use of a section (22) comprising a fibre composite with an oxide matrix for a battery housing cover (18).
Absstract of: WO2024170685A1
The invention relates to a battery housing cover (10) for covering at least one battery cell (26), wherein the battery housing cover (10) comprises a fibre composite with an oxide matrix. The invention also relates to a layer system (14) for a battery housing cover (10) with a first layer (16) made of a fibre composite with an oxide matrix and a second layer (18) made of a thermally insulating material. The invention further relates to the use of a fibre composite with an oxide matrix for a battery housing cover (10), a method for producing a layer system (14) and a method for producing a battery housing cover (10).
Absstract of: EP4667867A1
A weld step measurement apparatus according to an embodiment disclosed in this document includes a communication circuit, a processor, and a memory configured to store instructions, wherein the instructions may be executed by the processor for the weld step measurement apparatus to acquire 3-dimensional (3D) images of a predetermined area including electrodes stacked on a busbar of a battery from an image acquisition device via the communication circuit, identify step measurement points based on the 3D image, and determine the defectiveness of the battery based on depth values of each of the identified step measurement points.
Absstract of: EP4668361A1
The present invention relates to a cathode active material, a preparation method therefor, and a cathode and a lithium secondary battery which comprise same, the cathode active material having a discrete particle form and comprising a lithium composite transition metal oxide in a discrete particle form with an average particle diameter (D<sub>50</sub>) of greater than 5.5 µm and 10.0 µm or less, wherein the lithium composite transition metal oxide comprises Al, Y and Zr.
Absstract of: EP4668443A1
An energy storage system according to an embodiment of the present disclosure may include a first battery module assembly and a second battery module assembly mounted on the first battery module assembly, wherein the first battery module assembly may include a module guide provided to guide the mounting with the second battery module assembly.
Absstract of: WO2024170725A1
An implant is provided. The implant comprises an internal computing unit configured to control a function of said implant, said internal computing unit comprises an internal memory configured to store: i. a first control program for controlling the internal computing unit, and ii. a second, configurable or updatable, with predefined program steps, control program for controlling said function of said implant, iii. a set of predefined program steps for updating the second control program. The implant further comprises an internal communication unit connected to said internal computing unit and configured to communicate with an external device, wherein said internal computing unit is configured to receive an update to the second control program via said internal communication unit, and a verification function of, connected to, or transmitted to said internal computing unit, said verification function being configured to verify that the received update to the second control program comprises program steps comprised in the set of predefined program steps, wherein the implant further comprises an implantable apparatus for treating urinary retention of a mammal patient comprising: an implantable powered member adapted exert a force from the outside on a selected part of the urinary bladder in order to discharge urine from the urinary bladder, and a control device for controlling the operation of the powered member.
Absstract of: CN120814055A
The present invention relates to a binder composition comprising a vinylidene fluoride polymer and to the use thereof in the preparation of an electrode of a secondary battery.
Absstract of: CN120693695A
The present invention relates to a method (210) and a device (110) for initial charging of a lithium-containing anode (114) in an electrochemical device (112) wherein the electrochemical device (112) comprises an anode (114), a cathode (116) and an electrolyte (122) configured for providing a connection between the cathode (116) and the anode (114). The method (210) comprises the following method steps: a) providing an electrochemical device (112) in which the anode (114) and the cathode (114) have not previously been fully charged; b) supplying a plurality of current pulses (126) to the electrochemical device (112), thereby generating a solid electrolyte intermediate phase (30) on a surface (132) of the anode (114) and a surface (133) of the cathode (116), each adjacent to the electrolyte (122), where the solid electrolyte intermediate phase (130) includes corrosion products of the electrolyte (122) and the anode (114) or the cathode (116), respectively; and c) obtaining the formed electrochemical device (112); d) determining at least one material parameter relating to the performance of the electrochemical device (112) during method step b); and e) adjusting at least one pulse parameter relating to a current pulse (126) applied to the electrochemical device (112) during method step b). The method (210) and apparatus (110) according to the invention initially charges an electrochemical device (112) in a relatively fast manner while reducing waste and diffusion of the electro
Absstract of: EP4668457A1
Disclosed in the present application are a diaphragm and a manufacturing method therefor, and an electrode assembly, a battery cell, a battery and an electric device. The diaphragm comprises at least two layers of base membranes and at least one functional layer, wherein the functional layer is arranged between two adjacent base membranes, and the functional layer comprises a piezoelectric material. In the technical solution of the present application, the conductivity is increased, and the strength of the diaphragm is also improved by fixing the position of a piezoelectric material by means of two base layers of membranes and by means of the adhesion of a functional layer, which is sandwiched between the base membranes.
Absstract of: EP4668351A1
Provided are a carbon fiber electrode sheet, a lithium metal battery, a battery module, a battery pack, and an electric apparatus. The carbon fiber electrode sheet includes double layers of carbon fibers and a tab, and a lower part of the tab is disposed between the double layers of carbon fibers to form a tab extraction structure enveloped by the double layers of carbon fibers. By forming the tab extraction structure enveloped by the double layers of carbon fibers, the risk of the tab detachment due to unidirectional force application is reduced, and an electrolyte can contact the tab extraction structure only by passing through the double layers of carbon fibers, thereby reducing the risk that the electrolyte washes and erodes the tab extraction structure, and further enhancing the stability of connection between the tab and the carbon fibers.
Absstract of: EP4668400A1
This application provides an electrolyte solution, a battery cell, a battery, and a power consuming apparatus. The electrolyte solution includes a solvent. The solvent includes a first solvent. The first solvent is an organosiloxane compound. The content of the first solvent is greater than or equal to 20% of the total weight of the solvent.
Absstract of: EP4668456A1
A coating slurry, a coated separator, a preparation method, and a battery. The main components of the coating slurry comprise a solvent and an adhesive polymer resin, wherein the weight proportion of the adhesive polymer resin in the slurry is 5-20 wt%; and the adhesive polymer resin comprises a combination of a PVDF-based adhesive resin polymer and a polyimide adhesive resin or comprises a combination of at least two polyimide adhesive resins, the mass ratio of the polyimide adhesive resin to the PVDF-based adhesive resin polymer or the mass ratio of the first polyimide adhesive resin to the second polyimide adhesive resin being 50-85:15-50. The separator has good heat resistance, high breakdown resistance and adhesive performance, such that the high safety performance and the cycling stability performance of a subsequently obtained lithium-ion battery are greatly improved.
Absstract of: EP4667367A1
Interchangeable external battery, battery fastening module for a rotor-powered drone and system for fastening an interchangeable external battery. The interchangeable external battery includes a super-toroidal housing with several contained cells and wiring to electrically connect to the outside of the housing. In use, it allows in-flight interchange by another concentric battery of larger or smaller radius that can be located inside or outside the rotors. The battery fastening module includes radially distributed arms defining a central zone for housing the drone body, a pair of perimeter zones, an inner zone for housing a first interchangeable external battery and an outer zone for housing a second interchangeable external battery, such that the first and second batteries are concentric with coupling elements for joining, mechanically and/or electromagnetically, with a complementary coupling element of the batteries, with an electrical connection to power the drone.
Absstract of: EP4668432A1
A battery pack assembly (100) and a vehicle battery. The assembly comprises battery cells (1) comprising cell degassing elements (6). The battery pack assembly (100) further comprises a safety arrangement (2), comprising a cavity (3) provided between a proximal wall (4) and a distal wall (5). The proximal wall (4) is arranged proximate to the plurality of battery cells (1), and the distal wall (5) is arranged distal to the plurality of battery cells (1). The cavity (3) is configured to communicate with the cell degassing elements (6) through said proximal wall (4). The safety arrangement (2) further comprises an exit unit (7) connected in fluid communication with the cavity (3) by a port (8), the degassing unit (7) comprising a vent (9) leading out from the safety arrangement (2). The exit unit (7) is arranged on a second side (14) of the plurality of battery cells (1), said second side (14) being arranged at least substantially orthogonally to the proximal wall (4) of the cavity.
Absstract of: EP4667164A1
A lockout device for preventing a battery pack from attaching to a battery interface of a power tool, the battery interface being for mechanically and electrically engaging a battery pack to the power tool, the battery interface comprising a retention device for mechanically securing the battery pack to the battery interface, the lockout device comprising: a coupling configured for engagement with the retention device of the battery interface to prevent a battery pack from being attached to the battery interface.
Absstract of: CN120641360A
The invention relates to a method for obtaining phosphorus compounds and iron compounds from an iron phosphate-containing material, characterized in that i) the iron phosphate-containing material is reacted with chlorine gas in the presence of a carbon source at a temperature of 300 DEG C to 900 DEG C, and ii) withdrawing the formed chloro-phosphorus compounds, more particularly phosphorus oxychloride and optionally phosphorus trichloride, and ferric chloride in an exhaust gas stream, and iii) separating the ferric chloride from the exhaust gas stream, and iv) separating the chloro-phosphorus compounds.
Absstract of: CN120677061A
The invention relates to a method for packaging a product with a nickel surface, in particular an electrical element with a nickel surface, by using a thermosetting polymer material as a packaging material. The invention also relates to a kit of materials for encapsulating an article with a nickel surface and to an article obtained from said encapsulation. The method of the invention is based on applying a first coating based on an acrylic polymer material between an article with a nickel-based surface and an encapsulation material.
Absstract of: CN120642116A
The invention relates to an assembly (1) for a battery holder, comprising a first structural element (10), a second structural element (20), internal engagement means (30), external engagement means (40) and an adhesive (50); the inner engagement means (30) and the outer engagement means (40) fix the first structural element (10) to the second structural element (20) by means of an adhesive (50) at the level of the first end (11) of the first structural element (10) and at the level of the second end (21) of the second structural element (20).
Absstract of: CN120660232A
The invention relates to an assembly (1) for a battery holder, comprising: a first structural element (10); a second profile (30) exhibiting a hollow cross-section internally delimiting an adhesive surface (s30), and a mating cavity (31); an engagement means (50) inserted into the mating cavity (31) and comprising at least one fixing hole (51), the engagement means (50) comprising an engagement surface (s50) facing the adhesive surface (s30) on the outside; an adhesive (20) interposed between the bonding surface (s50) and the adhesive surface (s30), the adhesive (20) being configured to allow adhesion between the bonding surface (s50) and the adhesive surface (s30); the fixing component (40) comprises a fixing rod (41) which is screwed into the fixing hole (51); the fixing member (40) and the engagement mechanism (50) are thereby configured to fix the first structural element (10) with the second profile (30).
Absstract of: EP4668420A1
Dargestellt und beschrieben ist ein Verfahren für eine Profilieranlage (1) zur Herstellung eines geschlossenen Profils (2) für ein dichtes Gehäuse (3) für eine elektrische Zelle. Die Profilieranlage (1) weist eine Prägevorrichtung (4), eine erste Stanzvorrichtung (5), eine erste Fügevorrichtung (8), eine zweite Fügevorrichtung (9), eine Profiliervorrichtung (10) und eine Trennvorrichtung (11) auf.Aufgabe der vorliegenden Erfindung ist die Angabe eines Verfahrens für die Profilieranlage (1) zur Herstellung eines geschlossenen Profils (2) mit einem Überdruckventil, welches kostengünstiger als im Stand der Technik herstellbar ist oder zumindest eine Alternative darstellt.Die Aufgabe ist durch ein Verfahren mit den folgenden Schritten gelöst: Einprägen einer Sollberststelle (26) durch die Prägevorrichtung (4) in ein Berstmetallband (21) zur Zwangsentlüftung bei einem Berstdruck. Stanzen einer Öffnung (27) durch die erste Stanzvorrichtung (5) in ein Profilmetallband (22) mit einer ersten Bandkante (24) und einer zweiten Bandkante (25) passend zur Sollberststelle (26). Stoffschlüssiges Fügen des Profilmetallbands (22) und des Berstmetallbands (21) aufeinander durch die zweite Fügevorrichtung (9), sodass die Sollberststelle (26) und die Öffnung (27) im Profilmetallband (22) passend zueinander sind. Rollformen des Profilmetallbands (22) in ein Profil durch die Profiliervorrichtung (10). Stoffschlüssiges Fügen der ersten Bandkante (24) und der zweiten Bandkante (2
Absstract of: EP4668179A1
Computer system (100), computer-implemented method and computer program product are provided for indirect measurement of battery degradation of a particular electric vehicle (221). Parameter sets (200p) associated with completed charging runs (200) comprise: a charging level (220b-*), a vehicle range (220r-*), and a corresponding odometer reading (220o-*) or time point (220t-*). The vehicle range values (220r-*) are grouped by corresponding charging levels (220b-*) belonging to corresponding grouping intervals, such as predefined odometer reading intervals or time intervals in which the respective charging runs occurred. A maximum value (220mr-*) of the vehicle range related parameter obtained. For each charging level, a first mean/median (200rct-*) of the associated vehicle range is computed in each grouping interval. For each associated charging level (220b-*) in each grouping interval (GI*), the ratio of the first mean/median to the respective maximum value of vehicle range is computed, and an intermediate battery degradation value is determined by grouping interval for each charging level based on said ratios. For each grouping interval, a second mean/median of all intermediate battery degradation values across all charging levels is computed in the respective grouping interval (GI*) resulting in the battery degradation values (BDV*) for each grouping interval.
Absstract of: EP4667520A1
The invention relates to a thermally conductive composition comprising a curable polymeric matrix and a filler composition consisting of at least one thermally conductive filler and at least one type of hollow microspheres.The thermally conductive composition can be formulated to show excellent thermal conductivity while significantly reducing the density of the material.
Absstract of: CN120752150A
The invention relates to a battery (10) having a housing (2) and at least one module consisting of individual battery cells (4) which are inserted as a composite (11) into the housing (2), having at least one layer of thermally conductive glue (8) and having a structural package (7). The individual battery cell according to the invention is characterized in that the composite (11) of the individual battery cells (4) has an elastic, flexible sealing strip (12) in the stacking direction (S) between the stacked individual battery cells (4), via which sealing strip the sides of adjacent individual battery cells (4) are each kept at a distance from one another.
Absstract of: MX2025007007A
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.
Absstract of: CN120419069A
The invention relates to a system having at least one first receiving device (2a) for receiving at least one first rechargeable battery (4a), the at least first rechargeable battery comprising a temperature sensor (7) for measuring at least one temperature value of the rechargeable battery, at least the first receiving device comprises charging means (13) for charging the rechargeable battery with electrical energy, cooling means (14) for cooling the rechargeable battery, and heating means (15) for heating the rechargeable battery.
Absstract of: EP4668379A1
The present invention relates to a method for manufacturing a pouch-type secondary battery, and more specifically, relates to a plasma treatment method capable of improving sealing insulation performance of a pouch, a method for manufacturing a secondary battery, and a manufacturing device thereof. According to one example of the present invention, it is possible to provide a pouch-type secondary battery comprising: an upper pouch case having a metal layer and in which a polypropylene coating layer is formed on the lower surface, wherein the polypropylene coating layer is plasma surface-treated; a lower pouch case having a metal layer and in which a polypropylene coating layer is formed on the upper surface, wherein the polypropylene coating layer is plasma surface-treated; and a battery cell having leads having a metal layer and in which polypropylene coating layers are formed on the upper and lower surfaces, and when the upper pouch case and the lower pouch case are sealed by heat fusion, the upper and lower surfaces of the leads are each heat-fused between the upper pouch case and the lower pouch case, and characterized in that in the pouch sheet, the plasma surface treatment is performed to the sealing region and a temporary adhesion region near the sealing region.
Absstract of: EP4668350A1
A secondary battery. The secondary battery comprises a negative electrode sheet, wherein the negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer. The negative electrode film layer is provided with a first surface close to the negative electrode current collector and a second surface arranged opposite to the first surface; and the thickness of the negative electrode film layer is denoted as H, a region from the first surface of the negative electrode film layer to a thickness range of 0 3H is denoted as a first region of the negative electrode film layer, and a region from the second surface of the negative electrode film layer to a thickness range of 0.3H is denoted as a second region of the negative electrode film layer. The first region comprises a first active material, the second region comprises a second active material, the first active material comprises a siloxy material, and the second active material comprises a silicon-carbon composite material.
Absstract of: EP4668525A1
The invention discloses a battery pack control method in a mixed storage state based on light intensity, which includes step S1: detecting the status of multiple energy storage battery packs in real time. When it is in the standby state, it goes to step S2. When it is in the charging state, it goes to step S3, when it is in the discharge state, go to step S4, when it is in the simultaneous charge-discharge state, go to step S5; Step S2: When it is in the standby state: detect the lighting situation, and compare the structure with the current light intensity coefficient value and the set threshold. Adjust the circuit parameters; Step S3: Work in Buck mode when charging; Step S4: Work in Boost mode when discharging; Step S5: When in charge-discharge state, proceed according to the output-input power difference. Adjustment; Step S6: Return to step S1 and cycle through multi-energy storage battery control. This new energy power generation control method can enable the battery pack in mixed storage to safely, stably, quickly and efficiently collect and store new energy.
Absstract of: CN120693737A
There is provided a method of manufacturing a battery module, the method including: preparing a case configured to accommodate a plurality of battery cells therein; filling the housing with a curable resin composition; and curing a portion of the curable resin composition to form the capping member, in which the curable resin composition comprises a silicone-based polymer, a curing catalyst, a crosslinking agent, and a hollow filler, the curable resin composition has a curing rate of 10 mPa.s/min to 70 mPa.s/min at 23 DEG C, and the curing rate of the curable resin composition is 10 mPa.s/min to 70 mPa.s/min at 70 DEG C, and the curing rate of the curable resin composition is 10 mPa.s/min to 70 mPa.s/min. The curable resin composition has a curing rate of from 400 mPa * s/min to 2000 mPa * s/min.
Absstract of: EP4668372A1
The composition of the disclosure contains a conductive carbon material (A), an olefin resin (B), and an acrylic water-soluble polymer (C). The acrylic water-soluble polymer (C) has a structural unit derived from a (meth)acrylamide, and a structural unit derived from a vinyl monomer having at least one of a carboxy group or a hydroxy group. A content of the structural unit derived from a (meth)acrylamide is from 35% by mass to 95% by mass with respect to a total amount of the acrylic water-soluble polymer (C). A content of the structural unit derived from a vinyl monomer having at least one of a carboxy group or a hydroxy group is from 5% by mass to 65% by mass with respect to the total amount of the acrylic water-soluble polymer (C).
Absstract of: EP4668467A1
A battery cell, a battery, and an electric apparatus are provided. The battery cell includes a housing, an electrode assembly, and a conductive member. The housing is provided with an electrode lead-out member. The electrode assembly is accommodated in the housing. The electrode assembly is a cylindrical wound structure. The electrode assembly includes a first electrode plate, where the first electrode plate includes a current collector and an active material layer, the current collector includes a coated region coated with the active material layer and a tab not coated with the active material layer, and the coated region and the tab are arranged along a first direction. The conductive member includes a conductive body and a bent portion, where at least a portion of the conductive body is connected to the tab to form a first connection region, the bent portion is configured to be electrically connected to the electrode lead-out member, the bent portion extends from an end of the conductive body away from the active material layer and is continuously bent multiple times, and in the first direction, the bent portion entirely extends beyond an end of the tab away from the coated region.
Absstract of: EP4668381A1
An electrode assembly according to an embodiment of the present disclosure may include a plurality of electrodes stacked on top of each other; a plurality of separators interposed between the plurality of electrodes; and a plurality of electrode tabs connected to the plurality of electrodes and protruding further outward than the plurality of separators. Each separator may include an edge portion that protrudes further than the electrode in the extension direction of the electrode tab and partially overlaps with the electrode tab in the stacking direction of the plurality of electrodes. The edge portions of at least some of the plurality of separators may be sealed to each other so that the plurality of electrode tabs are gathered together.
Absstract of: EP4668472A1
An end cover assembly, an energy storage apparatus (100), and method for mounting and positioning an end cover assembly are provided. The end cover assembly includes an end cover (1) and a current-collector disk (2). The end cover (1) is provided with an explosion-proof valve (11) and defines a liquid-injection hole (12). The liquid-injection hole (12) is spaced apart from the explosion-proof valve (11). The current-collector disk (2) is coaxial with the end cover (1). The current-collector disk (2) includes a main body portion (21). The main body portion (21) defines a groove (22) on a surface of the main body portion (21) positioned facing towards the end cover (1). The groove (22) extends from a center of the main body portion (21) to an edge of the main body portion (21) in a radial direction of the main body portion (21). The main body portion (21) is provided with a visual identification portion (25). The visual identification portion (25) has a visual identification characteristic different from a region of the main body portion (21) other than the visual identification portion (25). The liquid-injection hole (12) is configured for alignment of the end cover (1) and the current-collector disk (2) through the visual identification portion (25).
Absstract of: EP4668533A1
An access method of a parallel branch in a battery system, a battery management system, a device, and a storage medium are provided. The method includes: detecting a to-be-accessed branch of a battery (S110), when the detection succeeds, acquiring a voltage difference between an accessed branch of a battery system and the to-be-accessed branch, and when the voltage difference satisfies a first preset range, accessing the to-be-accessed branch to the battery system (S120).
Absstract of: EP4668417A1
The present disclosure is aimed to provide a heat absorber with a low heat absorption starting temperature and excellent heat absorption amount, flame retardancy, and cushioning properties, and a secondary battery module including the heat absorber. The present disclosure provides a heat absorber including a bag capable of being filled with content and a hydrogel to fill the bag as the content, in which the hydrogel has a three-dimensional network structure and is synthesized using a water-soluble organic monomer as a reaction material. The heat absorber in the present disclosure is useful, in particular, as a heat absorber for secondary batteries.
Absstract of: EP4668445A1
What is provided is a partition member that partitions battery cells, the partition member having excellent shape stability even at a high temperature, and a battery assembly that uses the partition member. A layer for controlling heat transfer is retained in a retaining part having compressibility to form an inner enclosure body, and the inner enclosure body is encapsulated in an outer casing body to form a partition member. The retaining part is preferably formed in a tray shape, is provided to have a thickness larger than that of the layer for controlling heat transfer, and is configured such that an area of the outer casing body coming into contact with the inner enclosure body increases with an increase in an external pressure applied to the partition member.
Absstract of: EP4668368A1
The present invention provides a method for producing an electrode with which it is possible to obtain a mixture sheet exhibiting good stretchability.This method for producing an electrode (10) is characterized by including a mixture sheet preparation step in which a powder (20) of an electrode mixture including an active material and a fibrous binder and having a solid content concentration of substantially 100% is molded into a sheet shape to prepare a mixture sheet (12), and a bonding step in which the mixture sheet (12) is bonded to the surface of a core material (11), wherein the binder contains polytetrafluoroethylene having a shear bond stress of 40 kPa or less as a main component.
Absstract of: EP4668437A1
A battery cushioning structure that can improve a cushioning function is provided. A battery cushioning structure 100 includes a cushioning sheet 100 and interposing members 210, 220 disposed between the cushioning sheet 100 and a battery component. The cushioning sheet 100 includes protruding portions 120a, 120b that protrude toward the interposing members 210, 220.
Absstract of: EP4668367A1
The present invention provides a method for producing an electrode with which it is possible to obtain a mixture sheet exhibiting good stretchability.This method for producing an electrode (10) is characterized by including a mixture sheet preparation step in which a powder (20) of an electrode mixture including an active material and a fibrous binder and having a solid content concentration of substantially 100% is molded into a sheet shape to prepare a mixture sheet (12), and a bonding step in which the mixture sheet (12) is bonded to the surface of a core material (11), wherein the binder contains polytetrafluoroethylene having an internal friction angle of 45 degrees or more as a main component.
Absstract of: EP4668424A1
The disclosure provides a packaging material for a power storage device including at least a substrate layer, a barrier layer, an adhesive layer, and a sealant layer in this order, wherein the hydrogen sulfide gas permeability at 100°C in the thickness direction of the sealant layer and the adhesive layer is 3.7×10<sup>-15</sup> to 1.8×10<sup>-12</sup> (mol·m)/(m<sup>2</sup>·s·Pa).
Absstract of: EP4668356A1
The present application relates to a positive electrode sheet, a preparation method therefor, a secondary battery and an electric device, the positive electrode sheet includes a positive electrode current collector, at least a side of the positive electrode current collector is provided with a positive electrode active material layer, at least a side of the positive electrode active material layer is provided with a lithium compensation layer, the positive electrode active material layer includes lithium iron phosphate, and the lithium compensation layer includes a ternary material. At least a side of the positive electrode active material layer of the positive electrode sheet above is provided with the lithium compensation layer containing the ternary material, irreversible lithium compensation can be performed on a negative electrode sheet, and a loss amount of lithium ions in the positive electrode active material layer is effectively reduced during charge and discharge cycles, thereby delaying capacity attenuation of a secondary battery to prolong its cycle life.
Absstract of: EP4668365A1
A secondary battery includes an electrode assembly, and the electrode assembly includes a positive electrode plate. The positive electrode plate includes a positive electrode active material layer. The positive electrode active material layer includes a positive electrode active material and a positive electrode additive. The positive electrode active material includes a transition metal element, the transition metal element including one or more selected from the group consisting of Co, Ni, Mn, Fe, and V. The positive electrode additive is a nitrile-containing organic compound, a carbon-to-nitrogen atom number ratio of the positive electrode additive is m, where 1 ≤ m ≤ 6; a weight-average molecular weight of the positive electrode additive is Mw, where 300 ≤ Mw ≤ 800000; and based on a mass of the positive electrode active material layer, a mass percentage of the positive electrode additive is x%, where 0.01 ≤ x ≤ 0.50.
Absstract of: CN120712316A
The present disclosure relates to intumescent coatings and coated articles, wherein the intumescent coatings comprise an inorganic binder and at least one inorganic filler. In certain preferred embodiments, the inorganic binder is selected from the group consisting of potassium silicate, sodium silicate, or combinations thereof, and the at least one inorganic filler is selected from the group consisting of clay (e.g., kaolin), ceramic fibers, vermiculite, hollow ceramic microspheres, perlite, zeolite, mica, hexagonal boron nitride, silicon nitride, and combinations thereof. The coated article includes a substrate having a first major surface and a second major surface, and an intumescent coating disposed on the first major surface. The present disclosure also relates to a kit comprising an intumescent coating and at least one primer. Typically, the primer is used to prepare the surface of a substrate on which these coatings are applied.
Absstract of: CN120712316A
The present disclosure relates to intumescent coatings and coated articles, wherein the intumescent coatings comprise an inorganic binder and at least one inorganic filler. In certain preferred embodiments, the inorganic binder is selected from the group consisting of potassium silicate, sodium silicate, or combinations thereof, and the at least one inorganic filler is selected from the group consisting of clay (e.g., kaolin), ceramic fibers, vermiculite, hollow ceramic microspheres, perlite, zeolite, mica, hexagonal boron nitride, silicon nitride, and combinations thereof. The coated article includes a substrate having a first major surface and a second major surface, and an intumescent coating disposed on the first major surface. The present disclosure also relates to a kit comprising an intumescent coating and at least one primer. Typically, the primer is used to prepare the surface of a substrate on which these coatings are applied.
Absstract of: EP4668510A1
The present application provides an energy storage apparatus, which belongs to the technical field of electric power energy. The energy storage apparatus includes: a box body (1), which is internally provided with a first isolation compartment (13) and a second isolation compartment (14), the box body being provided with a first air inlet (9) in communication with only the first isolation compartment (13), a second air inlet (10) in communication with only the second isolation compartment (14), and an air outlet (11); a transformer (2) and an energy storage converter (3), wherein one of the transformer (2) and the energy storage converter (3) is arranged in the first isolation compartment (13), and the other is arranged in the second isolation compartment (14); and a heat dissipation assembly, which is configured to introduce external cold air, through the first air inlet (9) and the second air inlet (10), into the corresponding isolation compartments for heat exchange, and to discharge the air through the air outlet (11). The energy storage apparatus can realize independnte heat dissipation of the transformer (2) and the energy storage converter (3), thereby avoiding mutual influence.
Absstract of: EP4668429A1
A battery module (1) includes a battery cell (100), a fuse (233) electrically connected to the battery cell (100) and extending in a predetermined direction, and a surrounding heat resistant body (211) and a covering heat resistant body (311) at least partially surrounding the fuse (233) around the predetermined direction.
Absstract of: EP4668434A1
A battery module (1) in which a plurality of battery cells (10) each having one side surface on which an electrode terminal (11) is disposed are stacked includes: a first binding bar (100) provided to cover a side of each of the plurality of battery cells (10) on which the electrode terminal (11) is disposed; and a plurality of bus bars (500) that each electrically join electrode terminals (11) of battery cells (10) adjacent to each other, wherein each of the bus bars (500) is fixed at a position facing the electrode terminals (11) on an inner surface (110a) side of the first binding bar (100) on which the battery cells (10) are located, and the bus bar (500) is not fixed to each of the electrode terminals (11) and is in contact with and connected to the electrode terminal (11).
Absstract of: EP4668389A2
An electrode stacking apparatus includes a stacking table and a sheet supply unit that includes a rotary unit and first to fifth ejection units. The rotary unit is configured to rotate and concurrently to sequentially place the first to fifth ejection units on the stacking table. The first ejection unit is configured to eject a first electrode substrate. The second ejection unit is configured to eject a first electrode mixture. The third ejection unit is configured to eject a separator. The fourth ejection unit is configured to eject a second electrode mixture. The fifth ejection unit is configured to eject a second electrode substrate.
Absstract of: EP4668378A2
A fuel cell module (FCM) includes a fuel cell stack (FCS), and a controller (Cnt) configured to start power generation of the fuel cell stack (FCS) when a charging rate of a power storage device (B) directly connected between the fuel cell stack (FCS) and a load (Lo) becomes a lower limit value or less, and configured to stop power generation of the fuel cell stack (FCS) when the charging rate of the power storage device (B) becomes an upper limit value or more. The fuel cell stack (FCS) is connected to the power storage device (B) not through a power conversion circuit, and the controller (Cnt) changes at least one of the lower limit value and the upper limit value based on a deterioration degree of the fuel cell stack (FCS).
Absstract of: EP4668382A1
The present invention relates to a battery cell pressurizing device and a battery cell manufacturing method using the same, and more specifically, relates to a battery cell pressurizing device uniformly pressurizing a battery cell, and a battery cell manufacturing method using the same.According to one example of the present invention, a battery cell pressurizing device may be provided, which comprises: a first end plate located on one side; a second end plate facing the first end plate to be located on the other side; a pressurizing plate moving and pressurizing the first end plate in a direction where the plurality of battery cells is laminated so that the plurality of battery cells arranged between the first end plate and the second end plate is pressurized; a first pressurizing member provided to pressurize the central portion of the first end plate through the pressurizing plate by pressurizing the central portion of the pressurizing plate; and a second pressurizing member and a third pressurizing member provided to pressurize, based on the center of the first end plate, one side portion and the other side portion, respectively.
Absstract of: EP4667396A1
An object loading facility of the present invention includes a loading device configured to adsorb an object disposed in a supply section and load the object in a loading section, wherein the loading device includes: a stator provided as an electromagnet and having a circular traveling path that sequentially passes through the supply section and the loading section; a mover that is repeatedly circulated between the supply section and the loading section by an interaction with magnetic fields generated in the stator; a loading part continuously passing through the supply section and the loading section together with the mover and provided with an adsorption plate configured to adsorb the object in the supply section and load the object in the loading section; and a pressing part configured to allow the loading part passing through the supply section to move toward the object so that the adsorption plate of the loading part is in close contact with the object.
Absstract of: EP4668397A2
The present invention relates to a method for producing a positive electrode active material, the method including washing a lithium transition metal oxide with a washing solution, and solid-phase mixing the washed lithium transition metal oxide and a metal phosphate compound having a melting point of 500°C or lower, followed by performing heat treatment to form a coating layer on the surface of the lithium transition metal oxide.
Absstract of: EP4667255A2
A cooling system comprising a cooling circuit (10) with a deaeration device (40) arranged in the cooling circuit for separation of air bubbles from coolant circulating therein. The deaeration device comprises a deaeration chamber (41) having a coolant inlet (43) connected to a feed pipe (15) of the cooling circuit, a first coolant outlet (44) connected to a coolant pump (12) of the cooling circuit, and a second coolant outlet (45) connected to an expansion tank (30) via a static line (5). The deaeration chamber has a larger cross-sectional dimension than said feed pipe. The second coolant outlet (45) is located in such a position in relation to the coolant inlet (43) and the first coolant outlet (44) that the coolant flow in the deaeration chamber between the coolant inlet and the first coolant outlet will move migrating air bubbles in the longitudinal direction of the deaeration chamber towards the second coolant outlet (45).
Absstract of: EP4667406A1
Disclosed is a core for winding electrodes configured to allow an electrode to be wound therearound, the core including a ring-shaped first core having a first outer diameter, a ring-shaped second core having a second inner diameter greater than the first outer diameter, and a connection member connecting the first core and the second core to each other.
Absstract of: EP4668454A1
The present disclosure relates to a battery pack including: a plurality of battery cells; a pack case configured to accommodate the plurality of battery cells; and a blocking member having a module cover configured to cover an outer side of the battery cells, and configured to guide discharges released from the battery cell to an outer space of the module cover.
Absstract of: EP4668448A1
A battery cell (6), a battery (2), and an electric device. The battery cell (6) comprises a housing (20), an electrode assembly (10), a pressure relief mechanism (40), and a first insulating member (50), wherein the housing (20) comprises a wall portion (211); and the electrode assembly (10) is accommodated in the housing (20). The pressure relief mechanism (40) is arranged on the wall portion (211), and the pressure relief mechanism (40) comprises a pressure relief body (411) and a first weak portion (412) arranged around the pressure relief body (411), the pressure relief body (411) and the first weak portion (412) forming a first pressure relief area (41). At least part of the first insulating member (50) is arranged between the first pressure relief area (41) and the electrode assembly (10), the first insulating member (50) is provided with a first through hole (511), and in the direction of thickness of the wall portion (211), the projection of the first through hole (511) is located in the projection of the first pressure relief area (41).
Absstract of: EP4668347A1
The present application provides an electrode drying system and an electrode drying method that number adjustment of first drying zones and heat quantity compensation in drying zones around the first drying zones can be automatically performed by determining locations of first drying zones in a constant rate section state, to which a drying target electrode moves, based on an electrode surface temperature, and adjusting the desired adhesive force and drying rate of the drying target electrode.
Absstract of: EP4668408A1
According to some embodiments disclosed herein, a monitoring system includes a filter configured to collect a foreign substance from a manufacturing component, a laser radiator configured to radiate a visible light laser to the foreign substance collected on a surface of the filter, an image sensor configured to generate a laser radiation image by photographing the foreign substance exposed to the visible light laser, and a processor configured to acquire detection information of the foreign substance detected from the manufacturing component by performing image processing on the laser radiation image.
Absstract of: EP4668453A1
Disclosed are a battery pack and a vehicle including the same. The battery pack includes a plurality of battery modules in which a plurality of battery cells are stacked; a pack case configured to accommodate the plurality of battery modules; and a blocking cover configured to cover at least a portion of the battery module to be opened in a preset direction by flame or gas.
Absstract of: EP4668433A1
An insulator and a battery module are provided in the application. The insulator includes: an insulating plate including a body and protrusions, wherein the protrusions are provided at two ends of at least one side surface of the body, and a mounting portion is formed between the protrusions at the at least one side surface of the body ; and a heat insulation plate provided in the mounting portion, wherein a height of a side of the heat insulation plate away from the body is lower than heights of sides of the protrusions away from the body.
Absstract of: EP4668383A1
According to one example of the present invention, a pouch-type secondary battery manufacturing method, which is characterized in that the method comprises a forming step of sinking a partial region of a pouch to form an accommodation portion in which an electrode assembly is seated; an introduction step of seating the electrode assembly within the accommodation portion; and a sealing step of pressurizing a sealing region spaced apart from the edge of the accommodation portion by a predetermined distance at the outer side of the accommodation portion to form a sealing portion between an upper pouch and a lower pouch as laminated, and at least some sections of the sealing step are performed in a state where an up-and-down gap is maintained between the upper and lower pouches laminated in a temporary attachment region located between the edge of the accommodation portion and the sealing region, and a pouch-type secondary battery manufactured therethrough may be provided.
Absstract of: EP4668436A1
The present disclosure relates to a battery module including a plurality of battery cells, each battery cell having an electrode lead; a busbar frame having a lead slot located at a side where the electrode leads of the plurality of battery cells are disposed, the lead slot through which the electrode leads of the plurality of battery cells pass; and a frame cover located at an outer side of the busbar frame and configured to cover at least part of the lead slot.
Absstract of: EP4668422A1
This application is related to a battery cell (7), a battery (2), and an electric apparatus. The battery cell (7) includes an electrolyte, an electrode assembly (10), and a shell (20). The electrode assembly (10) and the electrolyte are accommodated in the shell (20), where the shell (20) is a cylindrical structure. The electrolyte includes a linear ester solvent, and a mass percentage of the linear ester solvent in the electrolyte is greater than or equal to 25.5 wt%. The rate performance and reliability of use of the battery cell (7) in embodiments of this application can be improved.
Absstract of: EP4667256A2
A cooling system comprising a cooling circuit (10) with a deaeration device (40) arranged in the cooling circuit for separation of air bubbles from coolant circulating therein. The deaeration device comprises a deaeration chamber (41) having a coolant inlet (43) connected to a feed pipe (15) of the cooling circuit, a first coolant outlet (44) connected to a coolant pump (12) of the cooling circuit, and a second coolant outlet (45) connected to an expansion tank (30) via a static line (5). The deaeration chamber has a larger cross-sectional dimension than said feed pipe. The second coolant outlet (45) is located in such a position in relation to the coolant inlet (43) and the first coolant outlet (44) that the coolant flow in the deaeration chamber between the coolant inlet and the first coolant outlet will move migrating air bubbles in the longitudinal direction of the deaeration chamber towards the second coolant outlet (45).
Absstract of: EP4668405A2
Apparatus, systems, and methods described herein relate to the manufacture and use of single pouch battery cells. In some embodiments, an electrochemical cell includes a first current collector coupled to a first portion of a pouch, the first current collector having a first electrode material disposed thereon, a second current collector coupled to a second portion of the pouch, the second current collector having a second electrode material disposed thereon, and a separator disposed between the first electrode material and the second electrode material. The first portion of the pouch is coupled to the second portion of the pouch to enclose the electrochemical cell.
Absstract of: EP4668349A1
Provides are a thick-electrode cathode sheet, a preparation method therefor and a primary battery. The method includes: first, mixing a cathode active material, a conductive agent, and a binder resin to obtain a mixed material; and subjecting the mixed material to fibrillation treatment to obtain a fibrillized mixed material; then subjecting the fibrillized mixed material and a granulating agent to granulation treatment to obtain a precursor material; and finally, subjecting the precursor material to rolling and film-formation treatment to obtain the thick-electrode cathode sheet.
Absstract of: EP4668617A1
Disclosed is a battery management system for communicating, as a master board, with a plurality of slave boards, the system comprising: a light-emitting element performing wireless communication with the plurality of slave boards, each including a light-receiving element; a resistor circuit which is connected to the light-emitting elements in series and which includes a plurality of resistors that can be connected in parallel to each other according to the opening/closing of a switch; and a controller, wherein the controller controls at least some of switches such that the resistance of the resistance circuit is reduced by connecting in parallel at least some of the plurality of resistors in response to the detection of a decrease in the intensity of light transmitted from the light-emitting element to at least some of the light-receiving elements.
Absstract of: EP4668357A1
The present application relates to a nickel-cobalt-manganese ternary precursor, a preparation method therefor, and use thereof. The nickel-cobalt-manganese ternary precursor comprises a core and a coating layer formed by stacking a plurality of primary particles on the surface of the core. The porosity of the core is greater than the porosity of the coating layer. The particle diameter of the core is less than or equal to 1 µm. The ratio of the radius of the core to the thickness of the coating layer is less than or equal to 1:2.75. The nickel-cobalt-manganese ternary precursor of the present application not only has an ultra-low specific surface area of 5 m<sup>2</sup>/g or less, but also has excellent dispersability and uniformity. When the nickel-cobalt-manganese ternary precursor is used for preparing a cathode material, the specific surface area of the cathode material can be reduced, thereby improving the cycle performance of a battery.
Absstract of: EP4668388A1
A secondary battery includes a case having an opening, an electrode assembly in the case, and a cap assembly configured to seal the opening of the case, the cap assembly including a cap-up exposed to an outside of the case, a vent plate between the cap-up and the electrode assembly, the vent plate being electrically connected to the cap-up, a cap-down between the vent plate and the electrode assembly, the cap-down being electrically connected to the vent plate and the electrode assembly, a first insulator between the vent plate and the electrode assembly, and a second insulator between the vent plate and the electrode assembly, the second insulator being spaced apart from the first insulator and being configured to support the vent plate.
Absstract of: EP4668452A1
Disclosed is a battery module, and a battery pack and a vehicle including the same. The battery module includes a battery cell stack in which a plurality of battery cells are stacked; a module case configured to accommodate the battery cell stack and having a discharge hole formed to discharge gas; and a reverse inflow prevention member coupled to the module case and configured to prevent discharged matter generated from the battery cell from flowing out of the module case and then reversely flowing into the module case.
Absstract of: EP4668391A1
A battery assembly (1) includes: a plurality of battery cells (10) arranged in a first direction; and a restraint member (100, 200) that restrains the plurality of battery cells (10) in the first direction, wherein each of the plurality of battery cells (10) has an electrode terminal (11) on at least one side in a second direction orthogonal to the first direction, the restraint member (100, 200) includes a pair of members (100, 200) provided to sandwich the plurality of battery cells (10) in the second direction, and the pair of members (100, 200) are provided to be separated from each other in the second direction.
Absstract of: EP4667171A1
A pressure control module includes a vacuum tank connected to a vacuum generator, the vacuum tank being configured to have a pressure therein maintained by the vacuum generator, and a control valve connected to the vacuum tank, the control valve being configured to control via the vacuum tank a pressure of a vacuum pad that absorbs an electrode plate.
Absstract of: EP4668466A1
The secondary battery electrode includes a substrate including an uncoated portion including a first surface and a second surface, the second surface being opposite the first surface, and a coated portion on which a first active material layer and a second active material layer are coated, the second active material layer being on a surface of the substrate opposite the first active material layer. The secondary battery also includes an electrode tab coupled to the substrate, a first tape adhered to a portion of the first active material layer around the electrode tab and the uncoated portion, and a second tape opposite the first tape and adhered to a portion of the second active material layer around the uncoated portion. Further, a tensile strength of at least one of the first tape or the second tape is 230 N/mm<sup>2</sup> or greater.
Absstract of: EP4668346A1
An aspect of the present disclosure is directed to providing an electrode that reduces in interfacial resistance and maintains a predetermined level of adhesion strength, a method for manufacturing the same, and an electrochemical device including the same. The electrode according to an aspect of the present disclosure is characterized in that it is manufactured by forming an adhesive layer on an electrode film and attaching the adhesive layer to a current collector, thereby improving the adhesion strength between the current collector and the electrode film and reducing the interfacial resistance between the current collector and the electrode.
Absstract of: EP4668459A1
The present application relates to the field of battery technologies, and in particular, to an electrode assembly, a battery, and an electric device. The electrode assembly includes a first electrode, a second electrode, a first separator, and a second separator. One of the first separator and the second separator is disposed between the first electrode and the second electrode. The other of the first separator and the second separator is disposed on a side that is of the first electrode or the second electrode and that faces away from the first separator. One of the first separator and the second separator does not include a porous coating. The other of the first separator and the second separator includes a porous coating. The thickness of the porous coating is 0.5 µm to 8 µm. The electrode assembly in the present application includes a specific first separator and a specific second separator, which can effectively improve cycling performance of the battery.
Absstract of: EP4668469A1
A battery cell, a battery, and an electric apparatus are provided. The battery cell includes a housing and a first conductive layer. The housing includes a first wall portion, where the first wall portion has a first surface, the first wall portion is provided with a recess, and the recess has a side surface connected to the first surface. The first conductive layer is accommodated in the recess, and the first conductive layer is in contact with the side surface. The provision of the first conductive layer improves the electric field distribution in a region, provided with the recess, of the first wall portion, resulting in a more uniform electric field strength distribution, reducing the risk of tip discharge at a connection position between the side surface and the first surface in a high-voltage environment, and improving the reliability of the battery cell.
Absstract of: EP4668439A1
A battery assembly according to certain aspects of the present disclosure comprises: a battery cell stack in which a plurality of battery cells are stacked; a fixed frame that covers at least a part of the battery cell stack; an outer frame in which the battery cell stack and the fixed frame are housed; and an inlet and an outlet that circulates a coolant into the outer frame.
Absstract of: EP4668355A1
Disclosed are a lithium-ion secondary battery and a preparation method therefor, a battery module, a battery pack, and a device. The lithium-ion secondary battery comprises a positive electrode pole piece, a negative electrode pole piece and an electrolyte solution. The positive electrode pole piece comprises a positive electrode active material and a positive electrode lithium supplementing material. The positive electrode lithium supplementing material comprises a lithium-rich metal oxide, and the lithium-rich metal oxide contains one or more elements among Ni, Co, Fe, Mn, and Cu. The electrolyte solution comprises an electrolyte lithium salt and a solvent, and the ratio ε of the total mass of fluorine in the anion of the electrolyte lithium salt relative to the total mass of the electrolyte solution is less than 14%.
Absstract of: EP4668358A1
Embodiments of the present invention relate to an electrode for a secondary battery, the secondary battery including the electrode, and a method for manufacturing the electrode. The electrode includes a current collector comprising a first surface facing a first direction and a second surface facing a second direction opposite to the first direction, a primer layer placed on one or more of the first surface and the second surface of the current collector, and an active material layer placed on the primer layer. In some embodiments, one or more portions of the current collector with the primer layer formed on one or more of the first and second surfaces thereof are protruded in at least one of the first direction or the second direction to form one or more protrusions.
Absstract of: EP4667956A1
Disclosed is a battery management apparatus according to embodiments and experimental examples of the present invention, which includes an instruction to detect occurrence of an abnormality in the battery system; an instruction to determine a specific battery group in which the abnormality has occurred depending on whether balancing has been performed when the abnormality has occurred in the battery system; and an instruction to detect a specific battery in which the abnormality has occurred based on temperatures of a plurality of batteries in the specific battery group.
Absstract of: EP4668354A1
The present invention relates to a positive electrode for a secondary battery and a secondary battery comprising the same, and more specifically, to a positive electrode for a secondary battery comprising a first positive electrode layer and a second positive electrode layer.
Absstract of: EP4667413A1
The present invention relates to a silicon-carbon composite, an anode active material comprising same, an anode composition, an anode, a lithium secondary battery, a battery module, and a battery pack, the silicon-carbon composite having a Raman spectrum in which the ratio (B<sub>D</sub>/B<sub>Si</sub>) of the intensity of the D band to the intensity of the Si peak or the ratio (B<sub>G</sub>/B<sub>Si</sub>) of the intensity of the G band to the intensity of the Si peak is greater than 5 and less than 50, and the Si peak is between 495 cm<sup>-1</sup> and 515 cm<sup>-1</sup>.
Absstract of: DE102024123303A1
Ein Fahrzeugsystem umfasst ein Batteriepack mit einer Vielzahl von Batteriezellen, einen Spannungssensor, der so konfiguriert ist, dass er eine Ausgangsspannung der Vielzahl von Batteriezellen erfasst, und ein Steuermodul, das mit dem Spannungssensor in Verbindung steht. Das Steuermodul ist so konfiguriert, dass es einen dem Batteriepack zugeordneten Fehler erkennt, von dem Spannungssensor ein erstes Spannungssignal, das einen ersten Spannungswert darstellt, und ein zweites Spannungssignal, das einen zweiten Spannungswert darstellt, empfängt, ein definiertes Verhältnis zwischen dem ersten Spannungswert und dem zweiten Spannungswert bestimmt, einen Batteriezellort des erkannten Fehlers in dem Batteriepack auf der Basis des definierten Verhältnisses und einer Gesamtzahl der Vielzahl von Batteriezellen in dem Batteriepack bestimmt und eine Warnmeldung generiert, die den Batteriezellort des erkannten Fehlers angibt. Weitere Beispiele für Fahrzeugsysteme und -Verfahren werden ebenfalls offenbart.
Absstract of: GB2642009A
A battery management system (BMS) having a printed circuit board (PCB) with a diagonal arrangement for use in a Li-ion battery, a Li-ion battery having a battery management system (BMS) having a printed circuit board (PCB) with a diagonal arrangement, and a BMS having a printed circuit board with diagonal arrangement method.
Absstract of: EP4667917A1
The present disclosure relates to a detection system and a detection method for detecting a tab back of a bare battery cell in a cell combining apparatus. The detection system includes a top cap carrying apparatus, a cell combining apparatus, a first detection apparatus, a second detection apparatus, and a control apparatus. The cell combining apparatus is configured to displace bodies of two bare battery cells from a lying state to an upright cell combining state in a case that a top cap is supported by the top cap carrying apparatus. The top cap carrying apparatus is configured to be movable from a carrying position to a displacement position after the bare battery cell is in the upright cell combining state, so as to allow tabs to extend to expose an anode tab back part and a cathode tab back part within a desired range, so that the first detection apparatus and the second detection apparatus respectively perform image acquisition on the anode tab back part and the cathode tab back part, and the images may be processed for use in a subsequent process. Therefore, according to the detection system and the detection method of the present disclosure, images of the tab back parts of the bare battery cell are acquired online during a cell combining operation, to provide more comprehensive information of quality of the tab back.
Absstract of: EP4668410A1
Disclosed is an electrolyte impregnation method for secondary batteries, the electrolyte impregnation method including receiving a secondary battery in a pressurization chamber and adjusting a pressure in the pressurization chamber, wherein, in the step of adjusting the pressure, a pressurization step and a pressurization release step are performed twice or more.
Absstract of: EP4668471A1
Disclosed is an electrolyte injection apparatus for secondary batteries, and more particularly an electrolyte injection apparatus including a frame unit including a lower plate and an upper plate spaced apart from the lower plate by a predetermined distance, the center of the upper plate being open, a pallet unit detachably located above the lower plate, the pallet unit being provided with a lower hopper into which a secondary battery and an electrolyte are supplied, an injection unit located above the pallet unit, the injection unit being configured to supply the electrolyte to the lower hopper, and a needle unit located above the upper plate, the needle unit being configured to supply the electrolyte to the injection unit, wherein the injection unit and the needle unit are separable from the upper plate.
Absstract of: EP4668395A1
A recovery method for recovering an electrolytic solution 15 of a lithium-ion secondary battery 10 includes an installing step S2 and a hole forming step S3. In the installing step S2, the lithium-ion secondary battery 10 is installed in a chamber 110 such that a projecting pin 161 is located immediately under a hole forming portion 42a of a case 41. In the hole forming step S3, the table 140 is lowered to pierce into the hole forming portion 42a.
Absstract of: EP4668387A1
Example embodiments of the present technology provide a battery cell formation device. The battery cell formation device includes a driving part including a driving plate and driving rods configured to move the driving plate in a first direction and a support part including a support plate and elastic elements connected to the support plate, in which the support plate is spaced apart from the driving plate in the first direction and includes protrusions protruding in the first direction.
Absstract of: EP4668360A1
The present invention provides a lithium secondary battery including a positive electrode; a negative electrode; a separator disposed between the negative electrode and the positive electrode; 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, and the non-aqueous electrolyte includes a lithium salt, fluoroethylene carbonate, 1,2-difluoroethylene carbonate, and a coumarin-based compound of a specific formula.
Absstract of: JP2025112296A
To provide a tetrafluoroethylene (TFE)-based polymer composition for a binder for an electrochemical device, which is capable of reducing the resistance of a mixture sheet.SOLUTION: A TFE-based polymer composition is used for a binder for an electrochemical device and includes a TFE-based polymer, at least one kind of compound selected from the group consisting of compounds represented by General Formulae (1) and (2), and a conductive carbon material, in which the amount of TFE-based polymer relative to the solid content is 10 mass% or more. General Formula (1): (H-(CF2)m-1-COO)pM1 (in which m represents 4 to 20, M1 represents H, a metal atom, or NR54 (R5 may be either the same or different and is H or an organic base with 1 to 10 carbons), etc., and p is 1 or 2). General Formula (2): (H-(CF2)n-SO3)qM2 (in which n is 4 to 20, M2 is H, a metal atom, or NR54 (R5 is the same as above), etc., and q is 1 or 2).SELECTED DRAWING: None
Absstract of: EP4668425A1
An end cover assembly, an energy-storage apparatus, and an electricity-consumption device are provided in the present disclosure. The end cover assembly includes an end cover, an upper plastic member, and a terminal post. The end cover has a first surface and a second surface positioned facing away from the first surface. The terminal post includes a terminal-post body and a flange connected to one end of the terminal-post body. The end cover further defines a mounting hole. The mounting hole extends through the first surface and the second surface. A protrusion portion protrudes from the first surface. The protrusion portion surrounds the mounting hole. The protrusion portion has an end surface. The upper plastic member includes an upper-plastic-member body and a lug. The upper-plastic-member body has a step surface and an abutting surface. The step surface is positioned facing away from the abutting surface in a height direction of the upper plastic member. The lug protrudes from an edge of the step surface away from a center of the upper plastic member. The upper-plastic-member body and the lug cooperatively define a terminal-post through-hole. The terminal post passes through the terminal-post through-hole. A surface of the flange positioned facing towards the terminal-post body abuts against the step surface. The lug surrounds an outer periphery of the flange. The upper plastic member and the terminal post are accommodated in the mounting hole. The lug exceeds the first
Absstract of: DE102024205641A1
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von Metallpulver, bei welchem eine Mischung umfassend mindestens ein Metallmaterial und mindestens ein Lösungsmittel bereitgestellt wird, die Mischung mindestens einem Mahlprozess unterzogen wird, und das mindestens eine Lösungsmittel durch Abdampfen von der Mischung abgetrennt wird. Das mindestens eine Metallmaterial ist ausgewählt aus der Gruppe bestehend aus Alkalimetallen, Indium sowie Mischungen und Legierungen hiervon. Das mindestens eine Lösungsmittel weist einen Dampfdruck bei 20 °C von mindestens 0,002 bar auf und ist ausgewählt aus der Gruppe bestehend aus aliphatischen Kohlenwasserstoffen, aromatischen Kohlenwasserstoffen, sowie Mischungen hiervon. Der mindestens eine Mahlprozess erfolgt bei einer Temperatur, die mindestens 10 °C unter dem Schmelzpunkt des mindestens einen Lösungsmittels liegt. Im Weiteren betrifft die vorliegende Erfindung auch ein Metallpulver sowie dessen Verwendung.
Absstract of: EP4668451A1
A battery according to an embodiment of the present disclosure may include: an electrode assembly having a winding structure around a central winding hole; a battery housing configured to receive the electrode assembly through an opening provided on one side; a battery cover configured to cover the opening of the battery housing and having a venting portion configured to be ruptured when an internal pressure of the battery housing exceeds a reference venting pressure; and a core support configured to be inserted into the central winding hole of the electrode assembly so as to increase rigidity of a core of the electrode assembly, and configured to guide a discharge direction of gas generated inside the electrode assembly toward the venting portion.
Absstract of: EP4668353A1
Cylindrically wound electrode assemblies and all-solid-state batteries including the electrode assembly are provided. The cylindrically wound electrode assembly includes a first solid electrolyte layer, a positive electrode layer, a second solid electrolyte layer, and a negative electrode layer. The first solid electrolyte layer, the positive electrode layer, the second solid electrolyte layer, and the negative electrode layer are sequentially arranged along a radial direction of the electrode assembly. The negative electrode layer includes a negative electrode substrate, and a first negative electrode coating layer between the negative electrode substrate and the second solid electrolyte layer. The negative electrode substrate includes a negative electrode support layer, a first negative electrode metal layer on a first surface of the negative electrode support layer, and a second negative electrode metal layer on a second surface of the negative electrode support layer. The negative electrode support layer includes a resilient polymer film.
Absstract of: EP4667125A1
A spent and/or decommissioned lead-acid accumulator treatment plant (60), comprising: a grinder device (14) configured to receive a plurality of spent and/or decommissioned lead-acid accumulators (12); and a plurality of separator devices (18); wherein said plant comprises an air pressurizing device (62) and at least one diffuser (64) configured to diffuse compressed air generated by the air pressurizing device (62) onto at least one of the output fractions (20, 22) of said at least separator device (18).A corresponding process.
Absstract of: EP4668418A1
A battery (100) includes an electrode assembly (110), a case (120, 200, 300, 400, 500, 600, 910, 1010, 1110) including a bottom portion, a sidewall portion connected to the bottom portion and including a seating portion (210, 310, 410, 510, 610, 912, 1012, 1112) at one end thereof, and an upper opening opposite to the bottom portion, the case (120, 200, 300, 400, 500, 600, 910, 1010, 1110) accommodating the electrode assembly (110), and a cap assembly (130, 220, 320, 420, 520, 620, 920, 1020, 1120) that is coupled to the seating portion (210, 310, 410, 510, 610, 912, 1012, 1112) of the case (120, 200, 300, 400, 500, 600, 910, 1010, 1110), wherein the cap assembly (130, 220, 320, 420, 520, 620, 920, 1020, 1120) includes at least one second engagement portion (222, 322, 422, 522, 622, 722, 822) for coupling with the case (120, 200, 300, 400, 500, 600, 910, 1010, 1110), the case (120, 200, 300, 400, 500, 600, 910, 1010, 1110) includes at least one first engagement portion (212, 312, 412, 512, 612, 712, 812, 914, 1014, 1114) respectively corresponding to the at least one second engagement portion (222, 322, 422, 522, 622, 722, 822), the seating portion (210, 310, 410, 510, 610, 912, 1012, 1112) including the at least one first engagement portion (212, 312, 412, 512, 612, 712, 812, 914, 1014, 1114), and the at least one first engagement portion (212, 312, 412, 512, 612, 712, 812, 914, 1014, 1114) and the at least one second engagement portion are coupled to restrict movement of th
Absstract of: EP4668461A1
The present invention relates to an electrode tab support. More specifically, it relates to an electrode tab support including a first electrode tab receptacle and a second electrode tab receptacle.
Absstract of: EP4668371A1
A battery cell, a battery, and an electric apparatus are disclosed. The battery cell (71) includes: an electrode assembly (10) including a positive electrode plate (11) and a negative electrode plate (12), where the positive electrode plate (11) includes a positive electrode current collector (111) and a positive electrode active material (112) disposed on the positive electrode current collector (111), the positive electrode active material (112) including an active material capable of reversibly deintercalating and intercalating sodium ions, and the negative electrode plate (12) includes a negative electrode current collector (121), the negative electrode current collector (121) including a metal substrate (121b); where a constituent material of the metal substrate (121b) includes element aluminum, and a mass percentage of the element aluminum is greater than a mass percentage of each of other elements.
Absstract of: EP4668345A1
Example embodiments provide a secondary battery manufacturing system. The secondary battery manufacturing system includes a first electrode cutter configured to cut a first electrode sheet unwound from a first electrode roll to provide a plurality of first electrodes, a second electrode cutter configured to cut a second electrode sheet unwound from a second electrode roll to provide a plurality of second electrodes, a third electrode cutter configured to cut a third electrode sheet unwound from a third electrode roll to provide a plurality of third electrodes, an electrode identifier (ID) reader configured to sense an electrode ID of an electrode tab of each of the first, second or third electrodes selected from among the plurality of first electrodes, the plurality of second electrodes, and the plurality of third electrodes, and a controller configured to collect coordinate-related electrode ID data, based on a first input amount of the first electrode sheet, a second input amount of the second electrode sheet, a third input amount of the third electrode sheet, and an electrode ID sensing signal.
Absstract of: EP4668449A1
Disclosed is a battery pack. The battery pack includes a case having an open upper surface and providing an inner space; a plurality of battery cells accommodated in the inner space and extending in a left and right direction; a partition wall configured to partition the inner space; a spacer provided at an upper end of the partition wall; and a pack cover configured to cover the upper surface of the case and coupled to the spacer.
Absstract of: EP4667126A1
A spent and/or decommissioned lead-acid accumulator treatment plant (80), comprising: a grinder device (14) configured to receive a plurality of spent and/or decommissioned lead-acid accumulators (12); and a plurality of separator devices (18; 82, 86); wherein a first one (82) of said separator devices (18; 82, 86) is configured to extract lead pastel (84); and wherein a second one (86) of said separator devices (18; 82, 86) is arranged upstream of said first one (82) of said separator devices (18; 82, 86) and comprises a settler (88) and an elutriator (90) configured to be inputted the output fraction (92) settled in the settler (88) and to extract therefrom a lead-based metal fraction (20, 22; 94).A corresponding process.
Absstract of: EP4668385A1
The present invention relates to a pouch-type secondary battery manufacturing device, and more specifically, relates to an adsorption device holding a pouch in an electrolyte injection process, and a pouch-type secondary battery manufacturing device comprising the same. According to one example of the present invention, a pouch-type secondary battery manufacturing device may be provided, which comprises: a base; a pad assembly provided at the front of the base and having an adsorption pad adsorbing a pouch in a horizontal direction to form an electrolyte injection path into the inside of the pouch; and a pad cover covering the upper part and front of the pad assembly and having a nozzle spraying air toward the adsorption pad.
Absstract of: EP4668384A1
The present invention relates to a pouch-type battery manufacturing device and a gripper used therein, and more specifically, relates to a battery manufacturing device and a gripper, which can perform an insertion process for a pouch and an electrode assembly more stably and efficiently while minimizing damage to the electrode assembly.According to one example of the present invention, a pouch-type battery manufacturing method may be provided, which comprises: a pouch pickup step of picking up a pouch, in which an accommodation portion for inserting an electrode assembly is formed, using a gripper; a pouch cover step of moving the pouch downward to the upper portion of the electrode assembly using the gripper to insert the upper portion of the electrode assembly into the accommodation portion; an assembly pickup step of picking up the pouch and the electrode assembly together using the gripper; and a seating step of seating the pouch and the electrode assembly in an assembly station in a state where the electrode assembly is inserted into the accommodation portion of the pouch from the upper portion of the pouch by reversely moving the gripper up and down.
Absstract of: EP4668404A1
According to an embodiment of the present disclosure, there is provided a lithium secondary battery comprising:a positive electrode in which a positive electrode mixture layer containing a positive electrode active material and an inorganic solid electrolyte is formed on one side or both sides of a positive electrode current collector,a negative electrode in which a negative electrode mixture layer containing a negative electrode active material is formed on one side or both sides of a negative electrode current collector,a separator interposed between the positive electrode and the negative electrode, anda gel-type electrolyte,wherein the inorganic solid electrolyte is included in an amount of 0.5 wt.% to 2 wt.% based on the total weight of the positive electrode mixture layer, and is uniformly distributed within the positive electrode mixture layer.
Absstract of: EP4668409A1
According to an embodiment of the present disclosure, there is provided a lithium secondary battery comprising:a positive electrode in which a positive electrode mixture layer containing a positive electrode active material and an inorganic solid electrolyte is formed on one side or both sides of a positive electrode current collector,a negative electrode in which a negative electrode mixture layer containing an Si-based active material as a negative electrode active material is formed on one side or both sides of a negative electrode current collector,a separator interposed between the positive electrode and the negative electrode, anda lithium non-aqueous electrolyte containing a lithium salt and a non-aqueous organic solvent,wherein the inorganic solid electrolyte is included in an amount of 1.5 wt.% to 5 wt.% based on the total weight of the positive electrode mixture layer, and is uniformly distributed within the positive electrode mixture layer.
Absstract of: EP4668446A1
Embodiments of this application provide a cell, a battery, and an electric device. The cell includes a can and an electrode assembly. The can includes a first wall portion, where N vent mechanisms are arranged along a first direction on the first wall portion. The electrode assembly is accommodated in the can. The electrode assembly includes a body portion and a tab. The body portion includes a plurality of sub-regions. Along the first direction, the tab is arranged at at least one end of the body portion. The plurality of sub-regions are consecutively arranged. A length of the body portion is L, and a length of the sub-region is L1, L=L1×N, L≥400 mm, and N≥2. A projection of each vent mechanism along a thickness direction of the first wall portion is correspondingly located in one of the sub-regions. Each vent mechanism can discharge a discharge medium generated by thermal runaway in a corresponding sub-region, and the discharge medium generated by thermal runaway in each sub-region can be quickly discharged through a corresponding vent mechanism, which can effectively improve timeliness of venting of a cell, thereby improving reliability of the cell.
Absstract of: EP4668399A1
Methods for preparing a solid electrolyte membrane are described. More particularly, a small amount of binder may be fiberized through a dry calendering process to prepare a solid electrolyte membrane. Since the fiberized binder is included in an entangled state within the solid electrolyte membrane, it shows excellent characteristics in both ionic conductivity and strength.
Absstract of: EP4667957A1
Disclosed is a battery diagnosing apparatus and a battery diagnosing method. The battery diagnosing apparatus includes a data obtaining unit configured to obtain a first profile representing a capacity-voltage relationship of a battery cell containing an active material with a multi-phase characteristic, and a processor configured to generate a plurality of comparison profiles based on a plurality of electrode profiles included in an electrode profile map. The processor is configured to select, as a second profile, one comparison profile from the plurality of comparison profiles by comparing each of the plurality of comparison profiles with the first profile, and determine a negative electrode scale factor as a diagnostic factor representing a degradation state of the battery cell based on the second profile.
Absstract of: EP4667394A1
Disclosed is a foreign matter removal apparatus according to embodiments of the present invention, for removing foreign matter of a battery gripper which transports a battery using a plurality of magnetic units, which includes a body part disposed under the battery gripper and connected to an air supply device and an air suction device.Here, the body part may include a plurality of inlet grooves formed with a space into which a portion of each of the magnetic units is introduced; an air spray unit that sprays air supplied from the air supply device to the magnetic units; and an air discharge path that sucks in the air and foreign matter flying from the magnetic units and discharges the air and the foreign matter to the air suction device.
Absstract of: DE102024205783A1
Verfahren (300) zur Spannungsnivellierung von Batteriezellen und/oder Batteriemodulen während eines Ladevorgangs eines Batteriesystems umfassend zumindest folgende Verfahrensschritte:a) Einleiten (304) eines Ladevorgangs,b) Messen (306) einer Zellspannung jeder einzelnen Batteriezelle,c) Ermitteln (308) einer Mittelwertspannung (114), wobei das Ermitteln (308) der Mittelwertspannung (114) aus den Zellenspannungen erfolgt,d) Identifizieren (310) einer umzuschichtenden Ladungsmenge (202) jeder Batteriezelle und/oder Identifizieren (310) einer umzuschichtenden Gesamtladungsmenge aller Batteriezellen,e) Durchführung (312) einer Abfrage zur Identifikation einer Spannungsabweichung der umzuschichtenden Ladungsmenge (202) und/oder der umzuschichtenden Gesamtladungsmenge zu einem Schwellenwert,f) Bestimmen (314) einer Balancierungsdauer,g) Balancieren (316) zumindest einer Batteriezelle,h) Erfassen (318) eines aktuellen Zustandes hinsichtlich des Balancierens (316) zumindest einer Batteriezelle,i) Beenden (320) des Ladevorgangs,wobei das Verfahren (300) in einem Batteriesteuergerät vorgenommen wird.
Absstract of: DE102024117605A1
Havarieschutzgehäuse (100) für Heim-Batteriespeicher (200), zum Aufstellen in einem Gebäude (500), mit einem Gehäusekorpus (10), der einen Nutzraum (20) zur Aufnahme eines Heim-Batteriespeichers (400) einkapselt, wobei der Gehäusekorpus (10) eine öffenbare Wartungsabdeckung (12a, 16) umfasst, die einen Wartungszugang zu dem Nutzraum (20) verschließt, wobei der Gehäusekorpus (10) eine Kabeldurchführung (60) für elektrische Anschlussleitungen (62) des Heim-Batteriespeichers (200) aufweist, und wobei das Havarieschutzgehäuse (100) einen Rauchgasdurchlass (50) aufweist, der eine Gehäusewand (12b) des Gehäusekorpus (10) durchdringt und an den ein Rauchgasrohr (70) zum Wegführen von Rauchgas von dem Havarieschutzgehäuse (100) anschließbar ist; sowie Havarieschutzvorrichtung (200) und Havarieschutzinstallation (300) mit einem solchen Havarieschutzgehäuse (100).
Absstract of: DE102024205767A1
Silicium-Kohlenstoff-Komposite, erhältlich durch ein Verfahren, umfassend folgende Schritte:Schritt 1: Bereitstellung von einem/mehreren porösen Kohlenstoff-Partikel(n), wobei die porösen Kohlenstoff-Partikel(i) kovalente organische Gerüstverbindungen (COFs) sind,(ii) einen mittleren elektrischen Partikelwiderstand von zumindest 0.5 MΩ,(iii) eine reversible Delithiierungs-Kapazität β von höchstens 100 mAh/g und(iv) bis 380°C einen Massenverlust von höchstens 10 Gew.-% aufweisen,Schritt 2: Thermische Abscheidung von Silicium aus einem/mehreren gasförmigen Silicium-Präkursor(en)in den Poren und/oder auf der Oberfläche der porösen Kohlenstoff-Partikel und gegebenfalls Schritt 3: Abscheidung von zusätzlichem Kohlenstoff in den Poren und/oder auf der äußeren Oberfläche der Silicium-Kohlenstoff-Komposite, wenn die Silicium-Kohlenstoff-Komposite nach Schritt 2 eine spezifische Oberfläche oberhalb von 50 m2/g aufweisen, wobei die Silicium-Kohlenstoff-Komposite nach Schritt 2 und gegebenfalls Schritt 3a) eine spezifische Oberfläche von höchstens 50 m2/g undb) einen mittleren elektrischen Partikelwiderstand von zumindest 0.5 MΩ aufweisen. Weiterhin sind ein Verfahren zur Herstellung der erfindungsgemäßen Silicium-Kohlenstoff-Komposite, deren Verwendung als Aktivmaterialien in Anoden für Lithium-Ionen-Batterien, Anoden enthaltend diese Silicium-Kohlenstoff-Komposite und Lithium-Ionen-Batterien umfassend Anoden enthaltend diese Silicium-Kohlenstoff-Komposite Gege
Absstract of: DE102024117617A1
Die Erfindung betrifft eine Überwachungsvorrichtung (11) für einen Energiespeicher (10) eines Kraftfahrzeugs, aufweisend wenigstens eine Erfassungseinrichtung (14), die eingerichtet ist, wenigstens eine physikalische Größe des Energiespeichers (10) zu erfassen. Zudem betrifft die Erfindung ein Verfahren (100) zu Überwachung eines Energiespeichers (10) eines Kraftfahrzeugs.
Absstract of: DE102024117691A1
Die Erfindung betrifft einen Hochvoltspeicher (2) für ein Fahrzeug (1), insbesondere ein Hybrid- oder Elektrofahrzeug, wobei jeweils zumindest zwei Speichermodule (10) einen Zweig (12) einer Umschaltmatrix (20) bilden, wobei eine Steuereinheit (30) jeweils die Speichermodule (10) innerhalb eines der Zweige (12) durch die Umschaltmatrix (20) zueinander parallel oder seriell schalten kann, und wobei die Umschaltmatrix (20) zumindest zwei Zweige (12) aufweist und die zumindest zwei Zweige (12) elektrisch miteinander verbunden sind und durch die Steuereinheit (30) zueinander parallel oder seriell geschaltet werden können. Ferner betrifft die Erfindung ein Verfahren zum Betreiben eines solches Hochvoltspeichers (2) und ein Fahrzeug mit einem Hochvoltspeicher (2).
Absstract of: DE102024205720A1
Die Erfindung betrifft eine Vorrichtung zum Halten und Drehen eines Stapels (11), der eine Vielzahl von Segmenten (12,13) und eine entsprechende Anzahl dazwischen angeordneter Separatorblätter (14) aufweist, oder eines Stapels (11), der eine Vielzahl von Segmenten (12,13) und eine Separatorbahn (15) aufweist, wobei die Segmente (12,13) in Falten der Separatorbahn (15) angeordnet ist. Die Vorrichtung (10) ist dazu eingerichtet, jeweils mindestens einen Halter (16, 17) auf die Oberseite (18) und die Unterseite (19) des Stapels (11) zu verfahren, mit den Haltern (16, 17) zum Halten des Stapels (11) eine Anpresskraft auf die Oberseite (18) und Unterseite (19) des Stapels (11) zu erzeugen, und den Stapel (11) mindestens 360° um eine Wickelachse (20) zu drehen.
Absstract of: DE102024205656A1
Die vorliegende Erfindung betrifft eine Kühleranordnung, insbesondere zur Kühlung einer Leistungselektronik eines Konverters, umfassend: einen Kühler aus Aluminium mit einer im Schnitt trogförmigen Gestalt mit einem ersten Wandbereich, einem zweiten Wandbereich und einem den ersten Wandbereich mit dem zweiten Wandbereich verbindenden Bodenbereich, wobei der Kühler ein erstes Blechbauteil, ein zweites Blechbauteil und einen Turbulator umfasst, wobei der erste Wandbereich einen ersten Kühlbereich und der zweite Wandbereich einen zweiten Kühlbereich aufweist, wobei am ersten Kühlbereich und am zweiten Kühlbereich das erste und zweite Blechbauteil voneinander beabstandet ist, um einen Zwischenraum für eine Durchströmung von Kühlmedium zu bilden, und der Turbulator zumindest teilweise im Zwischenraum für das durchströmende Kühlmedium angeordnet ist, und wobei zwischen dem ersten Blechbauteil und dem zweiten Blechbauteil und dem Turbulator Lotverbindungen ausgebildet sind.
Absstract of: DE102024117271A1
Die Erfindung betrifft ein System zur Positionierung und/oder elektrischen Kontaktierung mehrerer Energiespeicherelemente, wobei das System eine Einheit zur Positionierung und/oder elektrischen Kontaktierung eines der Energiespeicherelemente umfasst, wobei das System und/oder die Einheit, insbesondere die Einheit, Folgendes aufweist: eine Anordnungszone, wobei das Energiespeicherelement in dem System und/oder an der Einheit, insbesondere an der Einheit, in der Anordnungszone festlegbar ist.
Absstract of: DE102024117547A1
Die vorliegende Offenbarung betrifft ein Kühlsystem (100) für ein Fahrzeug, umfassend:- wenigstens einen Kühlkreislauf (110);- wenigstens eine Pumpe (120), die eingerichtet ist, um ein Kühlmittel im wenigstens einen Kühlkreislauf (110) zu zirkulieren; und- wenigstens ein Steuermodul (130), das eingerichtet ist, um ein Ansteuersignal für die wenigstens eine Pumpe (120) zeitlich zu variieren, so dass im Kühlkreislauf (110) zumindest abschnittsweise eine turbulente Strömung erzeugt wird.
Absstract of: DE102024117453A1
Die Erfindung betrifft eine Vorrichtung (10) zum Kühlen und Validieren mindestens einer elektrochemischen Zelle (12), umfassend mindestens ein Druckgehäuse (14), das mindestens einen Einlass (16) für ein Kühlfluid und mindestens einen Auslass (18) für ein Kühlfluid aufweist, mindestens eine elektrochemische Zelle (12), die in dem Druckgehäuse (14) angeordnet ist, dadurch gekennzeichnet, dass die Vorrichtung (10) weiter mindestens einen Drucksensor (20, 22) zum Messen eines Drucks des Kühlfluids am Einlass (16) und/oder am Auslass (18) aufweist und/oder dass die Vorrichtung (10) weiter mindestens einen Leitfähigkeitssensor (28) zum Messen der thermischen Leitfähigkeit des Kühlfluids am Auslass (18) aufweist. Mit der Vorrichtung (10) können Testergebnisse bei einer Messung, Zyklisierung und/oder Validierung mit einer erhöhten Genauigkeit bereitgestellt werden.
Absstract of: DE102024117513A1
Die Erfindung betrifft ein Batteriegehäuse (1) für ein Hochvolt-Batteriesystem, wobei das Batteriegehäuse (1) zumindest eine Notentgasungsöffnung (27) mit einem Druckausgleichelement (35) aufweist, das im Falle einer Notentgasung nach gehäuseaußen öffnet, sobald ein Gehäuse-Innendruck einen vordefinierten Überdruck-Grenzwert überschreitet. Erfindungsgemäß weist das Druckausgleichelement (35) einen Notentgasungssensor (45) aufweist. Der Notentgasungssensor (45) wirkt bei Vorliegen einer Notentgasung ohne Zeitverzögerung als Signalgeber für eine Sicherheits- und/oder Überwachungselektronik (37) des Hochvolt-Batteriesystems.
Absstract of: DE102024117680A1
Die Erfindung betrifft eine Flammschutzbauteil (10) für einen Zellstapel (20) einer direktgekühlten Hochvoltbatterie (32), insbesondere für ein Fahrzeug (30), umfassend mindestens eine erste Durchgangsöffnung (12) zum Anordnen über eine Elektrode (16, 16') einer an einer vordefinierten Positionen angeordneten Batteriezelle (18) des Zellstapels (20), dadurch gekennzeichnet, dass das Flammschutzbauteil (10) mindestens eine zweite Durchgangsöffnung (14) zum Anordnen abseits von Elektroden (16, 16') der Batteriezellen (18) des Zellstapels (20) aufweist. Mit dem Flammschutzbauteil (10) können die Qualität eines Zellstapels verbessert werden und Kosten eingespart werden.
Absstract of: DE102024117410A1
Zellanordnung für eine Energiespeichervorrichtung insbesondere für ein Kraftfahrzeug, wobei die Zellanordnung aufweist: eine Mehrzahl von zylindrischen Batteriezellen; eine regelmäßig angeordnete Mehrzahl von Zellaufnahmen, wobei jeweils eine der Batteriezellen in einer der Zellaufnahmen angeordnet ist; und eine Temperierungsvorrichtung, wobei die Temperierungsvorrichtung in einer als Temperierungszelle ausgebildeten Zellaufnahmen angeordnet ist und dazu eingerichtet ist, mit elektrischer Energie beaufschlagt zu werden, um die in den um die Temperierungsvorrichtung herum angeordneten Zellaufnahmen angeordneten Batteriezellen zu temperieren.
Absstract of: DE102024117402A1
Die Erfindung betrifft einen Natrium-Ionenleiter insbesondere zur Verwendung in einer Natrium-Ionen oder Natrium-Festkörperbatterie mit mehr als 28 mol% Na2O und zumindest einer Kristallphase, für die gilt, dass das Verhältnis aller mindestens zwei-wertiger Ionen mit einem Ionenradius kleiner als 69 pm (nr<69) zu mindestens zwei-wertigen Ionen mit einem Radius 69 pm (nr≥69), nr<69/nr≥69zwischen 3 und 6 liegt. Eine Natrium-Leitfähigkeit bei Raumtemperatur von mehr als 10-5S/cm kann erreicht werden. Die Erfindung betrifft ebenso ein Verfahren zur Herstellung eines solchen Natrium-Ionenleiters sowie dessen Anwendungen, insbesondere als Bestandteil einer Natrium-Ionenbatterie oder einer Natrium-Festkörperbatterie.
Absstract of: DE102025123988A1
Die vorliegende Offenbarung betrifft eine Negativelektrode für eine wiederaufladbare Lithiumbatterie, umfassend: einen Stromabnehmer; eine lithium-basierte Negativelektroden-Aktivmaterialschicht, die auf dem Stromabnehmer angeordnet ist; und eine Schutzschicht, die auf der lithium-basierten Negativelektroden-Aktivmaterialschicht angeordnet ist, wobei die Schutzschicht einen Gelpolymerelektrolyten und einen lithiumionenleitenden Nanopartikel umfasst, der Gelpolymerelektrolyt ein Lithiumion, das von Lithiumsalz abgeleitet ist, ein Anion, ein organisches Lösungsmittel und ein Polymer umfasst, und eine Lithiumionenbindungsenergie des Anions größer ist als die des organischen Lösungsmittels.
Absstract of: DE102024117569A1
Vorgeschlagen ist ein Kältemittelverteiler (1) für einen Kältekreislauf eines Fahrzeugs, umfassend aufeinander geschichtete und miteinander gefügte Verteilerplatten (4, 5), die in Schichtebene verlaufende Kältemittelkanäle (10, 11) begrenzen, wobei jeder Kältemittelkanal einen Kanaleinlass (14, 15) und einen Kanalauslass (16, 17) aufweist, die jeweils als Öffnung eine der Verteilerplatten senkrecht zur Schichtebene durchsetzen, sowie Kältemittelanschlüsse, an denen der Kältemittelverteiler in den Kältekreislauf einbindbar ist. Die Verteilerplatten sind Blechformteile, wobei die Kältemittelanschlüsse durch Anschlussstücke (2, 3) gebildet sind, die mit einer der Verteilerplatten (4) parallel zur Schichtebene gefügt sind und jeweils eine der Öffnungen umschließen.
Absstract of: DE102025122540A1
Ein Ladesystem umfasst ein Regelungsgerät (200, 232), das ausgelegt ist, um eine Laderegelung einer Batterie (231) so durchzuführen, dass ein SOC-Schätzwert der Batterie einen oberen SOC-Grenzwert nicht überschreitet. Das Regelungsgerät ist so ausgelegt, dass es den oberen SOC-Grenzwert für die nicht aufgeblähte Batterie auf einen ersten SOC-Wert und den oberen SOC-Grenzwert für die aufgeblähte Batterie auf einen zweiten SOC-Wert einstellt, der niedriger als der erste SOC-Wert ist. Als Antwort auf eine Bestimmung, dass die Batterie aufgebläht ist und ein SOC-Schätzfehler groß ist, ist das Regelungsgerät so ausgelegt, dass es bewirkt, dass ein SOC der Batterie höher als der zweite SOC-Wert ist, und einen Korrekturparameter zum Korrigieren des SOC-Schätzfehlers bestimmt.
Absstract of: DE102024123310A1
Eine Akkumulatorzellengruppenanordnung für ein Fahrzeug umfasst ein Gehäuse mit einer Vielzahl von Platten, die einen Hohlraum definieren, und eine oder mehrere Akkumulatorzellen, die in dem Hohlraum des Gehäuses angeordnet sind. Eine oder mehrere Wärmesperren sind mit jeder der einen oder der mehreren Akkumulatorzellen gekoppelt, und in der Nähe der einen oder der mehreren Akkumulatorzellen sind Lüftungsöffnungen definiert. Die Akkumulatorzellengruppenanordnung umfasst außerdem wenigstens eine Flammensperre, die über den LüftungsÖffnungen angeordnet ist. Die wenigstens eine Flammensperre weist einen wärmeleitenden Oberflächenbereich auf und umfasst eine erste Gruppe von Öffnungen. Die erste Gruppe von Öffnungen ist dazu ausgelegt, die Wärme von der einen oder den mehreren Akkumulatorzellen in den Hohlraum des Gehäuses umzuleiten. Die Akkumulatorzellengruppenanordnung umfasst ferner eine thermische Masse, die mit der wenigstens einen Flammensperre thermisch gekoppelt ist.
Absstract of: DE102024121456A1
Aspekte der Beschreibung umfassen Lithium-Metall-Batterien mit fluorierten Diacylacetamiden als Elektrolytlösungsmittel und Verfahren zum Herstellen derselben. Ein beispielhaftes Fahrzeug umfasst einen Elektromotor und ein Batteriepaket, das elektrisch mit dem Elektromotor verbunden ist. Das Batteriepaket umfasst eine Batteriezelle, die einen Anodenstromkollektor, eine Anoden-Aktivmaterial-Schicht in direktem Kontakt mit einer Oberfläche des Anodenstromkollektors, einen Kathodenstromkollektor, eine Kathoden-Aktivmaterial-Schicht in direktem Kontakt mit einer Oberfläche des Kathodenstromkollektors und einen flüssigen Elektrolyten über der Kathoden-Aktivmaterial-Schicht umfasst. Der flüssige Elektrolyt umfasst ein Lithiumsalz, das in einem organischen Lösungsmittel gelöst ist. Das organische Lösungsmittel umfasst ein fluoriertes Diacylacetamid mit einer N-Acetylgruppe, die an eine erste funktionelle Gruppe, eine zweite funktionelle Gruppe und eine dritte funktionelle Gruppe gekoppelt ist.
Absstract of: DE102025108094A1
Batterie mit einer Elektrodenanordnung, die einen Stromabnehmer der positiven Elektrode, eine Schicht aus aktivem Material der positiven Elektrode, eine Schicht aus Festelektrolyt, eine Schicht aus aktivem Material der negativen Elektrode und einen Stromabnehmer der negativen Elektrode umfasst, die gestapelt sind, wobei die Elektrodenanordnung eine Federkonstante in Stapelrichtung von 27.000 kN/cm oder weniger aufweist.
Absstract of: DE102024117679A1
Die Erfindung betrifft eine Batterie (10), umfassend ein Quellelement (18), das ausgebildet ist, bei Kontakt mit einem Quellmedium (16) aufzuquellen. Die Batterie (10) ist eingerichtet, dass das Quellelement (18) bei einem Kontakt mit dem Quellmedium (16) zuerst entlang einer ersten Raumrichtung (R1) und dann entlang einer zweiten Raumrichtung (R2) aufquillt. Somit können Schäden an der Batterie (10), beispielsweise an einer Zelle (12) oder einem Zellvent (14) der Batterie (10) vermieden werden.
Absstract of: DE102024117449A1
Die Erfindung betrifft eine Spanneinrichtung (12) für ein Batteriemodul (10), das einen Zellstapel (14) umfasst, der mehrere in einer Stapelrichtung (y) nebeneinander angeordnete Batteriezellen (16) umfasst, wobei die Spanneinrichtung (12) einen Aufnahmebereich (20) zur Aufnahme des Zellstapels (14) und eine sich in eine erste Richtung (y) erstreckende erste und zweite Seitenwand (22, 24) aufweist, die bezüglich einer zweiten Richtung (x) beidseitig vom Aufnahmebereich (20) angeordnet sind, wobei die ersten Richtung (y) bei bestimmungsgemäß im Aufnahmebereich (20) aufgenommenem Zellstapel (14) zur Stapelrichtung (y) korrespondiert. Dabei ist zumindest die erste Seitenwand (22, 24) als ein von einem Kühlmittel durchströmbares erstes Strangpress-Hohlprofil (26) ausgebildet, das eine erste, dem Aufnahmebereich (20) zugewandte Kühlseite (23a, 23b) umfasst, und die Spanneinrichtung (12) umfasst eine erste Toleranzausgleichseinrichtung (34a, 34c; 34b, 34d), die zwischen der ersten Kühlseite (23a, 23b) und dem Aufnahmebereich (20) angeordnet ist.
Absstract of: DE102024123502A1
Ein Fahrzeugbatterieüberwachungssystem umfasst eine Antriebseinheit mit einem Elektromotor, um Räder eines Fahrzeugs zu drehen, mindestens ein Batteriemodul, das dazu ausgebildet ist, den Elektromotor mit Strom zu versorgen, wobei das mindestens eine Batteriemodul eine Kathode, eine Anode und einen Separator zwischen der Anode und der Kathode umfasst, einen Speicher, der dazu ausgebildet ist, ein Kathoden-Ersatzschaltbild, ein Anoden-Ersatzschaltbild und ein Separator-Ersatzschaltbild zu speichern, und ein Fahrzeugsteuermodul, das dazu ausgebildet ist, eine Kathodenspannungsantwort der Kathode mithilfe des Kathoden-Ersatzschaltbildes zu bestimmen, eine Anodenspannungsantwort der Anode mithilfe des Anoden-Ersatzschaltbildes zu bestimmen, eine Separatorspannungsantwort des Separators mithilfe des Separator-Ersatzschaltbildes zu bestimmen und einen Ladestrom, der dem mindestens einen Batteriemodul zugeführt wird, anhand der Kathodenspannungsantwort, der Anodenspannungsantwort und der Separatorspannungsantwort zu verändern.
Absstract of: DE102024117450A1
Die Erfindung betrifft ein Verfahren zum Herstellen einer Batterieanordnung (10), wobei ein Gehäuse (12) bereitgestellt wird, das einen von Seitenwänden (22, 24, 46, 48) begrenzten Aufnahmebereich (20) aufweist, ein Zellstapel (14) bereitgestellt wird, der mehreren in einer Stapelrichtung (y) nebeneinander angeordnete Batteriezellen (16) umfasst, und der Zellstapel (14) in den Aufnahmebereich (20) eingesetzt wird. Dabei umfasst die Batterieanordnung (10) mindestens einen ersten Beutel (40a, 40b) mit einer flexiblen ersten Beutelwand (42a, 42b), die, wenn der Zellstapel (14) im Aufnahmebereich (20) angeordnet ist, zwischen dem Zellstapel (14) und zumindest einer der Seitenwände (22, 24, 46, 48) angeordnet ist, wobei der Zellstapel (14) im Aufnahmebereich (20) eingeklemmt wird, indem ein erster Innenraum (43a, 43b) des mindestens einen ersten Beutels (40a, 40b) (40a, 40b) nach dem Einsetzen des Zellstapels (14) in den Aufnahmebereich (20) mit einem viskosen Medium (44) befüllt wird.
Absstract of: DE102024117628A1
Die Erfindung betrifft ein Verfahren zur Herstellung eines natriumhaltigen Batteriematerials (BM), umfassend folgende Schritte:a) Bereitstellen einer natriumhaltigen Batterievorläufermischung (BVM) als Ausgangsverbindung in Form einer Lösung, Aufschlämmung, Suspension oder in einem festen Aggregatszustand,b) Einbringen der natriumhaltigen Batterievorläufermischung (BVM) in einen ersten thermischen Reaktor (1) mit einem Heißgasstrom (1.1),c) thermische Behandlung der von dem Heißgasstrom (1.1) getragenen natriumhaltigen Batterievorläufermischung (BVM) bei einer Temperatur von 150°C bis 1.200°C in dem ersten thermischen Reaktor (1),d) Ausbringen des natriumhaltigen Batterievorläufermaterials (fBVM) in fester Form aus dem ersten thermischen Reaktor (1),e) Einbringen des natriumhaltigen Batterievorläufermaterials (fBVM) aus Schritt d) in einen zweiten thermischen Reaktor (2),f) thermische Behandlung des natriumhaltigen Batterievorläufermaterials (fBVM) bei einer Temperatur von 500°C bis 1.200°C in dem zweiten thermischen Reaktor (2) und Umsetzung des natriumhaltigen Batterievorläufermaterials (fBVM) in das natriumhaltige Batteriematerial (BM), undg) Ausbringen des erhaltenen natriumhaltigen Batteriematerials (BM) in fester Form aus dem zweiten thermischen Reaktor (2).Des Weiteren betrifft die Erfindung eine Vorrichtung (V) zur Durchführung des Verfahrens.
Absstract of: DE102024117401A1
Die Erfindung betrifft einen Natrium-Ionenleiter insbesondere zur Verwendung in einer Natrium-Ionen oder Natrium-Festkörperbatterie zumindest einer Kristallphase und mehr als 28 mol% Na2O sowie den Komponenten SiO2, Oxide von Seltenen Erden und mindestens eine der Komponenten Al2O3, B2O3und/oder P2O5. Eine Natrium-Leitfähigkeit bei Raumtemperatur von mehr als 10-5S/cm kann erreicht werden. Die Erfindung betrifft ebenso ein Verfahren zur Herstellung eines solchen Natrium-Ionenleiters sowie dessen Anwendungen, insbesondere als Bestandteil einer Natrium-Ionenbatterie oder einer Natrium-Festkörperbatterie.
Absstract of: DE102025123487A1
Eine Traktionsbatteriepackbaugruppe beinhaltet eine Umhüllung und einen Zellenstapel innerhalb eines Innenraums der Umhüllung. Der Zellenstapel beinhaltet Batteriezellen und Teilerbaugruppen, die entlang einer Zellstapelachse angeordnet sind. Die Teilerbaugruppen sind jeweils entlang der Achse zwischen einer ersten Batteriezelle und einer zweiten Batteriezelle eingelegt. Die Teilerbaugruppen bilden jeweils eine Schnittstelle mit einer axial gerichteten Seite der ersten Batteriezelle und einer axial gerichteten Seite der zweiten Batteriezellen, um die Batteriezellen an einer von der Umhüllung beabstandeten Position zu stützen.
Absstract of: DE102024121989A1
Die Batteriezelle beinhaltet eine erste Elektrode, eine zweite Elektrode und einen Separator, der zwischen der ersten und zweiten Elektrode angeordnet ist. Der Separator ist elektrisch isolierend und ionisch leitfähig. Ein Elektrolyt ist zwischen der ersten und der zweiten Elektrode funktionsfähig angeordnet und wirkt mit dem Separator zusammen, um Ionen zwischen der ersten und der zweiten Elektrode zu leiten. Um die erste und zweite Elektrode ist ein Behälter angeordnet. Die erste Elektrode ist elektrisch mit dem Behälter gekoppelt und die zweite Elektrode ist elektrisch vom Behälter isoliert. Ein Anschluss ist neben dem Behälter angeordnet und von außerhalb des Behälters zugänglich. Die zweite Elektrode ist elektrisch mit dem Anschluss gekoppelt.
Absstract of: EP4668348A2
A manufacturing system (100A, 100B, 100C) of a rechargeable battery may include a transporting device (110) configured to transport a substrate (B), a coating device (120) configured to apply a slurry to the substrate (B), a pressurizing device (130) including a pressurizing member (131A, 131B) located spaced apart from the transporting device (110) and having a size corresponding to the slurry applied to the substrate (B), and a driving member (134) configured to move the pressurizing member (131A, 131B) toward the slurry or away from the slurry, and configured to pressurize the slurry so that a thickness of the slurry may become uniform, and a drying device (140) configured to dry the pressurized slurry.
Absstract of: EP4667418A1
Matériau d'électrode de formule A<sub>2</sub>Fe<sub>3</sub>(SO<sub>4</sub>)<sub>4</sub> dans laquelle A est un alcalin choisi parmi le sodium (Na), le lithium (Li), le potassium (K) et leurs mélanges, le matériau d'électrode présentant une structure cristallographique.
Absstract of: EP4668373A1
An electrode and a secondary battery are disclosed. An electrode includes a substrate, an active material layer on a portion of the substrate, and a connecting tab defining a substrate tab area by surrounding another portion of the substrate.
Absstract of: EP4667501A1
Électrolyte polymérique eutectique à conductivité ionique unipolaire, dit encore SI PDEE, comprenant :- au moins un polymère dont la chaîne principale est formée à partir de monomères, M, en C<sub>2</sub> à C<sub>20</sub> éthyléniquement polymérisables avec au moins une, et de préférence plusieurs, unités monomériques de ladite chaîne principale étant porteuse(s) d'au moins un groupement anionique dit SI<sup>-</sup>,- au moins une espèce donneuse de liaison hydrogène, dite HBD, dans un rapport molaire SI<sup>-</sup>:HBD variant de 1:0,5 à 1:15, en particulier de 1:1 à 1:15 ; et- au moins un cation, X<sup>+</sup>, de métal alcalin.
Absstract of: EP4668415A1
A modular electrochemical energy storage system comprises a plurality of modules. These include: at least one energy storage module, which is configured for the electrochemical storage of energy and has a first housing of a first housing type; and at least one control module, which is configured as an inverter and control unit for at least partial control of the energy storage system and comprises a second housing of a second housing type. The first housing and the second housing each comprise at least one housing opening on their upper housing sides and lower housing sides. In this case, a plurality of modules can be stacked vertically one on top of the other, regardless of their housing design, in such a way that, in the case of respective two modules which are vertically adjacent in the stack, a housing opening on the housing lower side of the upper of the two modules overlaps a housing opening on the housing upper side of the lower of the two modules in such a way that, by means of these overlapping housing openings, a vertical line routing for the line-bound connection of a module which is located in the stack (directly or indirectly) above the lower of the two modules is made possible. The connection can be, in particular, an electrical and/or a hydraulic connection.
Absstract of: EP4668419A1
A battery cell (100), a battery (1000), and an electrical apparatus. The battery cell (100) comprises: an electrode assembly (20); and a casing (10), the casing (10) being used for accommodating the electrode assembly (20). The casing (10) is provided with a scoring groove (41) and a buffer groove (50), the scoring groove (41) defining a predetermined pressure relief area (401) which is opened when the battery cell (100) is subjected to pressure relief, and the buffer groove (50) being located on the side of the scoring groove (41) away from the geometric center of the predetermined pressure relief area (401).
Absstract of: EP4667955A1
Embodiments of the present invention relate to the field of battery technologies, and specifically, to a battery level verification method, a controller, a battery apparatus, and a drone. The battery level verification method includes: obtaining battery sampling data and a first battery level; determining a target battery level according to the battery sampling data; generating first battery level verification information according to the target battery level and the first battery level; controlling, if the first battery level verification information is used to indicate that the first battery level is unreliable, a coulometer to perform a reset operation, so that the coulometer calculates, in a reset state, a second battery level of a battery according to the battery sampling data; and generating second battery level verification information according to the second battery level and the target battery level. According to this embodiment, reliability of a battery level estimated by a coulometer can be verified based on a battery status, and misjudgment by the coulometer due to failure to respond in time can be avoided, thereby improving reliability of battery level verification and helping the coulometer to accurately and reliably display the battery level.
Absstract of: EP4667294A1
A power distribution apparatus (100), a battery, and a power consuming device. The power distribution apparatus (100) includes a first electrical component (110) and a second electrical component (120). The first electrical component (110) includes a first electrical connection structure (111). The second electrical component (120) includes a second electrical connection structure (121). The first electrical connection structure (111) and the second electrical connection structure (121) are spaced apart. An insulating member (130) is provided between the first electrical connection structure (111) and the second electrical connection structure (121).
Absstract of: EP4668509A1
A power distribution apparatus (100), a battery (1100), and a power consuming device are provided. The power distribution apparatus (100) includes an electrical assembly (110); the electrical assembly (110) includes at least two electrical members (1101); among the at least two electrical members (1101), an electrical member having a maximum size in a first direction is a first electrical member (111); a size of the first electrical member (111) in the first direction is not greater than sizes of the first electrical member (111) in other directions; and a ratio of a size of the electrical assembly (110) in the first direction to the size of the first electrical member (111) in the first direction is M, where 1≤M≤1.2. Therefore, it is possible to make the size of the power distribution apparatus in the first direction small, and the whole power distribution apparatus can be flat, so that a space occupied by the power distribution apparatus in a preset direction can be reduced, thereby providing a larger mounting space for other components, reducing the arrangement difficulty of the other components, improving the structural compactness of the power consuming device and the battery, facilitating improvement of the performance of the battery and the power consuming device, and reducing manufacturing costs of the power consuming device and the battery.
Absstract of: EP4668499A1
A power distribution apparatus (100), a battery (1100), and a power consuming device are provided. The power distribution apparatus (100) includes a first electrical member (110) and a second electrical member (120). The first electrical member (110) includes a first connection terminal (111), and the first connection terminal (111) is configured to electrically connect the first electrical member (110) to another electrical member; and a first gap (1001) is formed between the second electrical member (120) and the first electrical member (110), where the first connection terminal (111) is located outside the first gap (1001), so that a connection operation space required by the first connection terminal (111) is moved out of the first gap (1001), thereby reducing the spacing between the first electrical member (110) and the second electrical member (120), and improving the structural compactness of the entire power distribution apparatus (100), which is beneficial to reducing the outline size of the entire power distribution apparatus (100), and is also beneficial to improving performance of a power consuming device and reducing costs of the power consuming device.
Absstract of: EP4668435A1
Provided are a battery module and a battery pack. The battery module includes an end panel assembly (100), including an end panel body (110) and a floating connection assembly (800) slidably connected to the end panel body (110); an electrical structure (700), wherein a part of the electrical structure (700) is connected to a first area (111a) of a first panel (111) while the other part of the electrical structure (700) is connected to a second area (111b) of the first panel (111); and a cell (510), disposed on one side close to the second panel (112). The electrical structure (700) as a whole moves with the first area (111a) away from the cell (510) relative to the second area (111b), and the floating connection assembly (800) moves away from the cell (510) relative to the end panel body (110) when the cell (510) is in an expanded status.
Absstract of: EP4668407A1
The present application belongs to the technical field of batteries, and particularly relates to an laminated battery cell, a secondary battery and an electrical apparatus. The laminated battery cell provided by the present application comprises a positive electrode sheet, a negative electrode sheet and a separator, the separator comprising a separator body; the separator body comprises a side surface facing the negative electrode sheet, the side surface being provided with a side edge, and at least part of the side edge being provided with an adhesive film layer; the adhesive film layer is arranged in a first direction and/or a second direction of the plane where the separator body is located, so as to form an accommodation area, the negative electrode sheet being located in the accommodation area. The laminated battery cell helps to improve the safety of batteries.
Absstract of: EP4668470A1
A battery cell, a battery, and an electrical apparatus. The battery cell comprises an electrode assembly, a shell, an electrode terminal, an insulating member, and a protective member. The shell comprises a wall portion provided with an electrode lead-out hole. The electrode assembly is accommodated in the shell and comprises a tab. The electrode terminal is electrically connected to the tab. The electrode terminal comprises a terminal body passing through the electrode lead-out hole and a fixing portion connected to the terminal body. The insulating member is arranged surrounding the terminal body. At least a portion of the insulating member is located between the fixing portion and the wall portion to isolate, in an insulated manner, the fixing portion from the wall portion. The protective member is arranged surrounding the terminal body and in contact with the insulating member. A tensile strength of the protective member is greater than a tensile strength of the insulating member.
Absstract of: EP4667415A1
The present invention relates to a silicon carbon composite, a negative electrode active material comprising same, a negative electrode composition, a negative electrode, a lithium secondary battery, a battery module, and a battery pack, the silicon carbon composite having, in a <sup>29</sup>Si-MAS-NMR spectrum, a peak A within a chemical shift value range of 20 ppm to -15 ppm, a peak B within a chemical shift value range of -20 ppm to -100 ppm, and, in a <sup>29</sup>Si-MAS-NMR spectrum, a peak C within a chemical shift value range of -110 ppm to -140 ppm.
Absstract of: EP4668386A1
Disclosed are a pressing apparatus for secondary battery formation capable of monitoring pressing force in real time such that pressing for formation can be performed while monitoring the contact area between a pressing plate and a battery in real time in order to solve a problem in which lithium is precipitated due to a change in pressing uniformity because the contact area of the battery is not confirmed during a formation process, which is one of secondary battery manufacturing processes, and a pressing method thereof.
Absstract of: EP4668364A1
The present invention relates to a positive electrode for a lithium secondary battery, a method of manufacturing the same and a lithium secondary battery comprising the same.
Absstract of: EP4669043A1
A power distribution apparatus (30), a battery (1), and a power consuming device are provided. The power distribution apparatus (30) includes an electrical component (31) and an insulating heat conduction member (32). One side of the insulating heat conduction member (32) is connected to at least a part of the electrical component (31), the other side of the insulating heat conduction member (32) is configured to be connected to a heat exchange member (40), and the insulating heat conduction member (32) is configured to transfer heat from the electrical component (31) to the heat exchange member (40). According to the power distribution apparatus (30), heat is conducted between the electrical component (31) and the heat exchange member (40) through the insulating heat conduction member (32), thereby enhancing the heat dissipation performance and the heat dissipation efficiency of the power distribution apparatus (30) for the electrical component (31), reducing the risk of thermal failure of the electrical component (31), and prolonging the service life of the electrical component (31) and the power distribution apparatus (30).
Absstract of: EP4668412A1
The present invention relates to a method of discharging a battery cell (2), comprising mixing the battery cell (2), a liquid coolant (3) and metal fragments (4) such that electrode contacts of the battery cell (2) are immersed in the liquid coolant (3). The metal fragments (4) have an area-to-volume ratio in the range of 2 to 11 mm<sup>-1</sup> and a thickness in the range of 0.1 to 0.5 mm.
Absstract of: EP4668444A1
A battery assembly (1) includes: a first binding bar (100) provided to cover a side of each of a plurality of battery cells (10) on which an electrode terminal (11) is disposed; and a plurality of bus bars (500) that each electrically join electrode terminals (11) of battery cells (10) adjacent to each other, wherein each of the bus bars (500) is fixed at a position facing the electrode terminals (11) on an inner surface (110a) side of the first binding bar (100) on which the battery cells (10) are located, the bus bar (500) is not fixed to each of the electrode terminals (11) and is in contact with and connected to the electrode terminal (11), and the bus bar (500) includes a base portion (510) composed of a resin, and a bus bar terminal (530) embedded in the base portion (510) and having a first contact surface (530a) and a second contact surface (530b) each exposed from the base portion (510) to make contact with the electrode terminal (11).
Absstract of: EP4667416A1
The present invention relates to: a silicon-carbon composite having peak A with a chemical shift in the range of 20 ppm to -15 ppm in the <sup>29</sup>Si-MAS-NMR spectrum, peak B in the range of -20 ppm to -100 ppm, and peak C with a chemical shift in the range of -110 ppm to -140 ppm in the <sup>29</sup>Si-MAS-NMR spectrum; and a negative electrode active material, a negative electrode composition, a negative electrode, a lithium secondary battery, a battery module; and a battery pack which include the silicon-carbon composite.
Absstract of: EP4668536A1
Provided is a charging and discharging device for secondary batteries with an improved internal airflow. A charging and discharging device of the present disclosure includes a mechanism unit that brings pins for charging and discharging into contact with battery cells; a power supply unit that is disposed adjacent to the mechanism unit, supplies power and controls charging and discharging; and an airflow circulation unit that continuously circulates air through the power supply unit to the mechanism unit.
Absstract of: EP4668352A1
The present invention relates to a positive electrode for a secondary battery, a lithium secondary battery comprising the same and a method of manufacturing the same.
Absstract of: EP4668428A1
A secondary battery according to an embodiment of the present disclosure may include a pouch-type case having an opening between a pair of case units, an electrode assembly inserted into the case through the opening, and a sealing member provided to cover the opening and seal the case.
Absstract of: EP4668431A1
A power battery system (1000) and its pressure relief assembly (100) are provided. The power battery system further includes a plurality of battery modules (4). The battery module (4) is internally provided with a pressure relief cavity (43) and at least one cell (41). The pressure relief assembly includes a guide pipe (1) and an explosion-proof valve (2). The guide pipe includes provided with a plurality of flow-collecting sections (11) and at least one converging section (12). The plurality of flow-collecting sections are respectively in communication with the pressure relief cavities of the plurality of battery modules. The flow-collecting section is provided with a first port and a second port. The first port is in communication with the pressure relief cavity of a corresponding battery module, and the second port is in communication with the flow-converging section. One end of the explosion-proof valve is in communication with the flow-converging section, and the other end is in communication with an exterior of the power battery system. A gap is reserved between both the flow-collecting section and the flow-collecting section and the cells in the power battery system.
Absstract of: EP4668430A1
A power battery system (1000) and its power battery module (100) are provided. The power battery module (100) includes a plurality of cells (18), a plastic bracket (11) and a sealing cover plate (12). The plurality of cells (18) are electrically connected to form a battery group (180). At least one end portion of the cell (18) is provided with a pressure relief valve (181). The plastic bracket (11) is provided on at least one side of the battery group (180). The end portion of each cell (18) provided with the pressure relief valve (181) is arranged on the plastic bracket (11). The plastic bracket (11) is provided with pressure relief portions (111) corresponding to the pressure relief valves (181) of the cells (18). The sealing cover plate (12) covers the plastic bracket (11). The plastic bracket (11) cooperates with the sealing cover plate (12) to form a pressure relief cavity (13). An inner wall of the pressure relief cavity (13) is formed with a pressure relief protective layer (14) that is made of heat insulating materials.
Absstract of: EP4668390A1
The battery stack (40, 70, 80, 90, 110, 120) includes plural battery cells (50) disposed side by side in a first direction (W1), an electrode body (52) being accommodated in an exterior member (53) of each of the battery cells (50), and at least one inter-cell member (60, 72, 82, 92, 112) disposed between the adjacent battery cells (50). The exterior member (53) includes a low-stiffness region (53A), which is superposed with the electrode body (52) in the first direction (W1), and high-stiffness regions (53B) that are higher in stiffness than the low-stiffness region (53A). The high-stiffness regions (53B) are provided at end portion sides of the low-stiffness region (53A) in a second direction (W2) intersecting the first direction (W1). The inter-cell member (60, 72, 82, 92, 112) includes a first region (61, 73, 83, 93, 113) that touches the high-stiffness region (53B) and second regions (62, 74, 84, 94, 114) that touch the low-stiffness regions (53A).
Absstract of: EP4668450A1
Embodiments of the present application provide a battery cell, a battery, and an electric apparatus. The battery cell includes a housing and a pressure relief component. The housing includes a first wall portion, the first wall portion is provided with a first groove, the first groove includes a groove side surface and a first groove bottom surface, the groove side surface surrounds the first groove bottom surface, and the first groove bottom surface is provided with a pressure relief hole. The pressure relief component is disposed within the first groove, the pressure relief component abuts against the first groove bottom surface and covers the pressure relief hole. At least a portion of the groove side surface along a circumferential direction of the first groove forms a gap with the pressure relief component. When the first wall portion deforms due to swelling of the battery cell, the gap between the pressure relief component and the groove side surface provides a buffer space for the pressure relief component, reducing the risk of the groove side surface squeezing the pressure relief component and causing deformation of the pressure relief component, thereby reducing the risk of the pressure relief component opening prematurely during normal use of the battery cell, improving the service life of the pressure relief component, and further improving the service life of the battery cell.
Absstract of: EP4667953A1
A battery management apparatus according to an embodiment of the present disclosure 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 of each of a plurality of batteries using the reference profile and a charging and discharging profile of each of the plurality of batteries; a characteristic information generating unit configured to generate a negative electrode change ratio of the negative electrode profile compared to the reference negative electrode profile for each of the plurality of batteries; a calculation processing unit configured to calculate a relative difference of the plurality of negative electrode change ratios; and a diagnosing unit configured to diagnose a state of the plurality of batteries using a calculation result of the calculation processing unit.
Absstract of: EP4667954A1
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 participation end point of the target cell.
Absstract of: EP4668421A2
A secondary battery and a battery module including the same are disclosed. A secondary battery includes an electrode assembly, a case accommodating the electrode assembly, a cap plate coupled to the case, a first insulating member around an outer side surface of the case, and a first open hole passing through the first insulating member and exposing the outer side surface of the case.
Absstract of: EP4668414A1
Disclosed are a battery pack, a heat exchange system for the battery pack, and a heat exchange system for a battery cluster. The battery pack includes: a box body which is provided with a liquid inlet port and a liquid outlet port; a top cover which is located at the top of the box body; and a plurality of battery modules which are located in the box body, where the battery module includes a plurality of stacked battery cells, a top plate is arranged at the tops of the plurality of battery cells, end plates are arranged at two opposite sides in a lengthwise direction, flow channel plates are arranged at two opposite sides in a widthwise direction, a heat exchange structure is arranged below, and a sealed space is formed; a plurality of first flow channel grooves are formed in one side close to the battery cells.
Absstract of: EP4668403A1
This application relates to a cylindrical battery cell (7), a battery (2), and an electric apparatus. The cylindrical battery cell (7) includes a metal shell (20) and an electrolyte. The electrolyte is accommodated in the metal shell (20). The electrolyte includes an electrolytic salt. The electrolytic salt includes a hexafluorophosphate and a sulfonylimide, and a molar concentration of the hexafluorophosphate is less than or equal to 0.9 mol/L. In embodiments of this application, the reliability of use and cycling performance of the cylindrical battery cell (7) can be improved.
Absstract of: EP4668394A2
The present disclosure relates to a negative electrode for a lithium secondary battery comprising a lithium-magnesium-aluminum alloy, a method for preparing the same and a lithium secondary battery, such as a lithium sulfur battery, comprising the same.
Absstract of: EP4668411A2
The non-aqueous electrolyte secondary cell according to the present invention comprises: an electrode body constituted by a positive electrode including a positive electrode active material comprising a lithium-containing transition metal oxide, a negative electrode including a negative electrode current collector onto which metallic lithium is deposited during charging, and a separator disposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte. The molar ratio of the total lithium content of the positive electrode and the negative electrode to the transition metal content of the positive electrode is 1.1 or less. During discharging, the positive electrode capacitance α (mAh) of the positive electrode and the volume X (mm<3>) of a hollow constituted by a space formed in the center of the electrode body 14 satisfy the relationship 0.5 ≤ X/α ≤ 4.0.
Absstract of: EP4667043A2
The present disclosure relates generally to a defibrillator assembly comprising a defibrillator having a first operating mode for delivering a high energy output to a patient and a second operating mode for monitoring the patient, a first battery unit operably coupled to the defibrillator, and a second battery unit operably coupled to the defibrillator. One of the first battery unit and the second battery unit provides power to the defibrillator during the second operating mode. Both the first battery unit and the second battery unit provide power to the defibrillator during the first operating mode.
Absstract of: EP4668441A1
A universal battery enclosure, a resulting battery pack assembly, and the methods of making and using the same are provided. A method is also provided to a battery for a plurality of different golf carts. Information is provided on dimensions and configurations of battery holders in the plurality of different golf carts. Each golf cart has a battery holder, which has a respective dimension and configuration. A battery having a battery enclosure with predetermined dimension is provided based on the information on the dimensions and configurations of the battery holders of different golf carts. The battery is the only type of battery and is configured to fit into different battery holders. The battery may be a lithium ion battery.
Absstract of: FR3163492A1
Circuit de refroidissement pour une batterie pour un véhicule automobile électrique ou hybride rechargeable Circuit de refroidissement (1) comprenant une pluralité de branches (C1, C2, C3, C4, C5, C6) disposées en parallèles, et comprenant respectivement :- un premier raccord (6),- un port d’entrée (7), - un port de sortie (9), et- un deuxième raccord (10),le circuit étant caractérisé en que pour chacune des branches (C1, C2, C3, C4, C5, C6) :- le premier raccord (6) et/ou le port d’entrée (7), et/ou- le deuxième raccord (10) et/ou le port de sortie (9)présente une cavité de manière à délimiter un logement configuré pour accueillir un élément intermédiaire d’ajutage (11) présentant une section de passage (S) configurée pour calibrer le débit du fluide caloporteur, la section de passage (S) de l’élément intermédiaire d’ajutage (11) étant propre à chaque branche (C1, C2, C3, C4, C5, C6). Figure pour l’abrégé : Fig. 9
Absstract of: FR3163455A1
Titre : Procédé de détection de fuites et dispositif permettant la mise en œuvre d’un tel procédé L’invention concerne un procédé de détection de fuites dans un objet définissant au moins un volume interne, ledit procédé comprenant une étape de mise en pression/dépression d’un volume interne depuis une pression initiale, caractérisé en ce que le procédé comprend, simultanément à l’étape de mise en pression/dépression, une étape de surveillance permettant d’interrompre l’étape de mise en pression/dépression lorsque la pression/dépression instantanée est en dehors d’un intervalle de tolérance prédéterminé autour de ladite valeur de référence. Figure pour l’abrégé : Fig. 1
Absstract of: FR3163495A1
L’invention concerne un boîtier de connexion électrique pour batterie d’accumulateurs, comportant une boîte (4) renfermant au moins un composant électrique et/ou électronique (8, 9, 10) et un système de refroidissement (13) configuré pour refroidir le composant électrique, caractérisé en ce que le système de refroidissement comporte une poche souple (14, 15) configurée pour contenir un fluide caloporteur et qui est placée en contact avec le composant électrique. L’invention concerne en outre une batterie d’accumulateurs équipée d’un tel boîtier et un véhicule automobile pourvue d’une telle batterie. Figure pour l’abrégé : Fig. 2
Absstract of: FR3163496A1
Electrode négative pour batterie électrique comprenant au moins un premier liant choisi parmi l’un des composés suivants : jaune d’œuf, blanc d’œuf, riz gluant, graines de lin ou un mélange de ceux-ci.
Absstract of: FR3163491A1
Électrolytes polymères eutectiques profonds à conductivité ionique unipolaire Électrolyte polymérique eutectique à conductivité ionique unipolaire, dit encore SI PDEE, comprenant : - au moins un polymère dont la chaîne principale est formée à partir de monomères, M, en C2 à C20 éthyléniquement polymérisables avec au moins une, et de préférence plusieurs, unités monomériques de ladite chaîne principale étant porteuse(s) d’au moins un groupement anionique dit SI-, - au moins une espèce donneuse de liaison hydrogène, dite HBD, dans un rapport molaire SI-:HBD variant de 1:0,5 à 1:15, en particulier de 1:1 à 1:15 ; et - au moins un cation, X+, de métal alcalin.
Absstract of: FR3163494A1
L’invention concerne une méthode de détermination d’une température cible de préconditionnement thermique d’une batterie (40) d’un véhicule automobile (2) au moyen d’une unité de gestion thermique (30), préalablement à une opération de charge de ladite batterie au moyen d’une borne de recharge. La température cible de préconditionnement est déterminée en fonction (i) d’informations relatives à l’opération de charge (temps de charge de l’opération de charge, état de charge de la batterie au début de l’opération de charge, puissance de charge de la borne de recharge utilisée lors de l’opération de charge), et (ii) d’un gain d’énergie net positif non nul défini comme la valeur obtenue en retranchant une énergie d’ajustement (énergie nécessaire à l’unité de gestion thermique pour atteindre la température cible) à un gain d’énergie de charge (gain en énergie récupérée par la batterie opérée à la température cible par rapport à l’énergie récupérée à une température initiale). Figure à publier avec l’abrégé : Fig.1
Absstract of: FR3163493A1
La batterie comprend un boîtier externe délimitant : - un compartiment inférieur logeant un premier groupe de modules de batterie, le compartiment inférieur comprenant une plaque inférieure de refroidissement des modules munie d’un circuit inférieur pour le passage d’un liquide de refroidissement, et - un compartiment supérieur, disposé au-dessus du compartiment inférieur et logeant un deuxième groupe de modules de batterie, le compartiment supérieur comprenant une plaque supérieure de refroidissement des modules munie d’un circuit supérieur pour le passage de liquide de refroidissement. Le boîtier externe comprend : - un premier port inférieur (44) connecté au circuit inférieur (42) de refroidissement, - un premier port supérieur (54) connecté au circuit supérieur (52) de refroidissement, et la batterie comporte un conduit externe de raccordement, dit premier conduit externe (74), reliant le premier port inférieur (44) et le premier port supérieur (54). Figure pour l’abrégé : figure 4
Absstract of: FR3163497A1
Bloc (1) de batteries d’accumulateurs électriques de véhicules automobiles, ledit bloc (1) comprenant N cellules électrochimiques solides (25) longitudinales, chaque cellule (25) présentant deux bornes positive et négative ; caractérisé en ce qu’il comprend un casier (3) présentant une face avant et une face arrière opposées et une rangée de N logements (15) ordonnés de 1 à N, chaque logement présentant deux ouvertures opposées débouchant respectivement dans lesdites face avant et arrière dudit casier (3), et en ce que les N cellules (25) sont respectivement engagées dans les N logements, de façon que les deux bornes de chacune des cellules (25) s’étendent respectivement dans lesdites deux ouvertures opposées (17) de chacun desdits logements (15) pour pouvoir, d’une part raccorder électriquement alternativement deux à deux à partir du premier logement les bornes s’étendant dans les ouvertures (17) de la face avant dudit casier (3), et d’autre part raccorder électriquement alternativement deux à deux à partir du deuxième logement les bornes s’étendant dans les ouvertures (17) de la face arrière dudit casier (3) de manière à relier lesdites N cellules en série. Figure de l’abrégé : Figure 5
Absstract of: FR3163500A1
L’invention concerne un étage (32) d’empilement (4) de dispositif électrochimique (2), comprenant une première couche (30) et une deuxième couche (30) s’étendant en regard l’une de l’autre, l’étage (32) étant caractérisé en ce qu’il comprend, en outre, au moins une fibre optique (14) formant un capteur thermique distribué, chaque fibre optique étant agencée au moins en partie entre la première couche (30) et la deuxième couche (32). Figure 1
Absstract of: WO2025259696A1
Systems and methods utilizing aqueous-based polymer binders for silicon-based anodes may include an electrode coating layer on a current collector, where the electrode coating layer is formed from a silicon carbon composite or SiOx-based or Si- Carbon-SiOx-based powder and a water soluble polymer and may comprise one or more additional materials. The anode may be in a lithium ion battery.
Absstract of: WO2025259532A1
Wirelessly rechargeable battery systems are described. The wirelessly rechargeable batteries have a standardized consumer form factor, such as AAA, AA, C, D, or the like and can be used in consumer devices designed to operate using such consumer batteries. The wirelessly rechargeable batteries may be wirelessly recharged without removing the batteries from the consumer device by placing the consumer device (containing the batteries) near a wireless recharger.
Absstract of: WO2025259424A1
Disclosed herein is a battery (e.g., a Li-ion battery) comprising: an anode comprising bismuth ferrite and a binder; a cathode; and an electrolyte comprising a lithium compound and a fluoroethylene carbonate (FEC) additive. Batteries with a bismuth ferrite anode having a carboxymethyl cellulose (CMC) binder and a lithium-containing electrolyte with FEC additive, show a capacity of up to 750 mAh/g at 100 mA/g and high capacity retention, with over 400 mAh/g at 500 mA/g after 1,000 cycles.
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: 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: WO2025259042A1
Disclosed is an electrode plate pick-and-place device comprising: an suction plate for picking up an electrode plate from the preceding device and placing the picked-up electrode plate on the succeeding device; a rotation driving unit for allowing the suction plate to pick up the electrode plate and rotate forward and backward to place the picked-up electrode plate; and a transfer unit for transferring the suction plate to an electrode plate pickup position and a place position.
Absstract of: WO2025259035A1
Provided is a positive electrode active material in the form of secondary particles in which primary particles including a lithium transition metal composite oxide are aggregated. The lithium transition metal composite oxide contains lithium, nickel, and manganese, wherein the molar content of manganese is greater than that of nickel. The primary particles have an average particle size of 50 nm to 500 nm, and the secondary particles have a particle size (D50) of 0.5 ㎛ to 1.5 ㎛. With the characteristics such as particle size, specific surface area, etc., the positive electrode active material can improve battery performance when applied to electrodes, for example by increasing initial discharge capacity and reducing internal resistance.
Absstract of: WO2025259037A1
Provided is a positive electrode active material in the form of secondary particles in which primary particles comprising a lithium transition metal composite oxide are aggregated. The lithium transition metal composite oxide comprises lithium, nickel, and manganese, and additionally comprises molybdenum as a doping element, wherein the molar content of manganese in the lithium transition metal composite oxide is greater than the molar content of nickel. The primary particles have an average particle size of 0.5 μm to 1.5 μm, and the secondary particles have a particle size (D50) of 1.0 μm to 2.5 μm. The positive electrode active material has a large particle size, compression density, and the like even though prepared by sintering at a lower temperature by doping molybdenum, and when the positive electrode active material is applied to an electrode, the average voltage and energy density can be improved.
Absstract of: WO2025259634A1
Lithium-ion batteries, battery modules and battery packs are provided that comprise anti-propagation systems designed to mitigate a thermal runaway condition. A battery module comprises a housing comprising a plurality of lithium-ion battery cells each having a positive terminal and a negative terminal, and a flexible container housing a liquid and positioned adjacent to the positive terminal of at least one of the battery cells. The flexible container comprises a material configured to melt at a temperature at or above a threshold temperature for quenching a thermal runaway event in the battery pack to prevent the thermal runaway from propagating and spreading to other battery cells or modules within the pack. The battery module comprises a reinforcement substrate secured to the flexible container. The reinforcement substrate provides structural rigidity to the flexible container and functions to inhibit thermal runaway eject from passing therethrough to other battery modules within the battery pack.
Absstract of: WO2025259041A1
Disclosed is an air dancer for a high-speed web transfer system, comprising: a web guide unit having an upper roll and a lower roll installed on a web transfer path to be freely rotatable while facing each other in the vertical direction along the web transfer direction, thereby guiding webs in the transfer direction; and a tension control unit for controlling the tension of webs by applying a negative pressure to webs passing between the upper roll and the lower roll.
Absstract of: WO2025259050A1
The present invention relates to a negative electrode material comprising a red phosphorus coating for a secondary battery enabling high-rate charging and exhibiting high cycle characteristics, and a method for manufacturing same. In the present invention, a uniform and thin red phosphorous coating layer and a carbon coating layer are formed on graphite, leading to high electron and lithium-ion permeability, and thus can suppress lithium precipitation on the surface of the electrode and exhibit high-rate charge and discharge characteristics and excellent cycle characteristics.
Absstract of: WO2025258808A1
The present invention relates to a secondary battery pressing device and a secondary battery pressing method using same, the secondary battery comprising a battery case accommodating an electrode assembly in which a pair of electrode leads are positioned to face each other, and a sealing part at an edge of the battery case. The secondary battery pressing device comprises: a pair of pressing plates for pressing one surface and the other surface of the battery case; and a pair of contact members in close contact with a corner part of the battery case by the pair of pressing plates.
Absstract of: WO2025258664A1
A non-aqueous electrolyte secondary battery according to the present disclosure comprises: a long positive electrode; a long negative electrode; a long separator disposed between the long positive electrode and the long negative electrode; and a non-aqueous electrolyte, wherein the long positive electrode, the long negative electrode, and the long separator are wound in the length direction to form a wound body, the central portion of the wound body has a separator wound portion formed by winding the long separator 15-40 times, and the thickness of the long separator is 0.01-0.03 mm.
Absstract of: AU2025271196A1
Abstract A lithium metal electrode has no more than five ppm of non-metallic elements by mass, and is bonded to a conductive substrate. Optionally, the lithium metal electrode may be bonded on one side to a conductive substrate and on another side to a lithium ion selective membrane. The lithium metal electrode may be integrated into lithium metal batteries. The inventive lithium metal electrode may be manufactured by a process involving electrolysis of lithium ions from an aqueous lithium salt solution through an ion selective membrane, carried out under a blanketing atmosphere having no more than 10 ppm of non-metallic elements, the electrolysis being performed at a constant current between about 10 mA/cm2 and about 50 mA/cm2, and wherein the constant current is applied for a time between about 1 minute and about 60 minutes. bonded on one side to a conductive substrate and on another side to a lithium ion selective about 60 minutes.20 ov o v b o n d e d o n o n e s i d e t o a c o n d u c t i v e s u b s t r a t e a n d o n a n o t h e r s i d e t o a l i t h i u m i o n s e l e c t i v e
Absstract of: AU2025271429A1
- 41 - ELECTROCHEMICAL CELL WITH INCREASED RUNTIME AND REDUCED INTERNAL SHORTING Alkaline electrochemical cells are provided, wherein methods to decrease or eliminate shorting in batteries by preventing zinc oxide reaction precipitate from creating a conductive bridge between the two electrodes. The alkaline electrochemical cell comprising dissolved zinc oxide or zinc hydroxide in at least the electrolyte solution, and/or solid zinc oxide particles or zinc hydroxide in the anode, a silicon donor in the anode, and/or a bilayer separator optimally comprising a high- density layer and a low-density layer. - 41 ELECTROCHEMICAL CELL WITH INCREASED RUNTIME AND REDUCED ov o v
Absstract of: WO2025258848A1
Provided is a cylindrical battery cell having a simple structure, a simple assembly process, and high energy density. An electrode assembly is accommodated in an accommodation space of a can of the battery cell. One electrode of the electrode assembly is bonded to an end wall provided at a lower end portion of the can, and the other electrode of the electrode assembly is bonded to a cap covering an opening provided at an upper end portion of the can. The bonding is performed by irradiating a laser to the end wall and an outer surface of the cap to penetrate and weld the end wall and the outer surface of the cap. A first current collecting plate including a radially extending portion and an axially extending portion is interposed between the cap and the electrode assembly. The radially extending portion is bonded to a first electrode of the electrode assembly, and an upper end portion of the axially extending portion is bonded to a bottom surface of the cap.
Absstract of: WO2025258820A1
The present invention relates to a negative electrode for an all-solid-state battery and an all-solid-state battery comprising same, the negative electrode comprising: a negative electrode current collector; and a negative electrode coating layer on the negative electrode current collector, wherein the negative electrode coating layer comprises an inorganic filler, and the inorganic filler comprises a lithium metal oxyhalide represented by chemical formula 1 below (chemical formula 1 is as described in the specification).
Absstract of: WO2025258995A1
The present invention relates to a cylindrical battery cell having a structure configured for efficient cooling using a cap provided at the lower portion of a can. The battery cell comprises: a can having a side wall member extending in an axial direction, an opening provided at a first end of the side wall member in the axial direction, and a bottom member connected to a second end of the side wall member in the axial direction; an electrode assembly including a first electrode and a second electrode and accommodated in the can; a current collecting plate including a central portion and a peripheral portion disposed around the central portion and electrically connected to the electrode assembly; and a cap configured to block the opening of the can and including a body portion and an edge portion, wherein the bottom member includes at least one notched vent portion, the central portion is electrically connected to the second electrode of the electrode assembly, the peripheral portion is in contact with the first end of the sidewall member and the edge portion of the cap, and the first end of the sidewall member, the edge portion of the cap, and the peripheral portion are electrically connected to each other.
Absstract of: WO2025258734A1
The present invention relates to a positive electrode additive for a secondary battery, a positive electrode slurry comprising same, and a lithium secondary battery comprising same, wherein the positive electrode additive may include a compound represented by chemical formula 1. The details of chemical formula 1 are as described in the specification.
Absstract of: AU2025271318A1
22250140_1 (GHMatters) P110542.AU.2 Abstract Disclosed is a method of forming a conductive diamond layer on a surface of a carbon fibre substrate that is used as a component of an electrode for neural stimulation and/or electrochemical sensing. The method comprises functionalising at least a portion of the surface with a functionalising agent to facilitate coating the surface with the conductive 5 diamond layer. The method also comprises providing a diamond precursor and depositing the diamond precursor over the functionalising agent to form the conductive diamond layer. The disclosure also relates to an electrode that is used as a component of an electrode for neural stimulation and/or electrochemical sensing. Figure 2f. Abstract ov b s t r a c t o v Fi gu re a Fi gu re b Fi gu re c Fi gu re d Fi gu re e Fi gu re f -H -N -0 e' (Echem reduction HSO) + Figure 2a Figure 2b Figure 2c 5 jum µm 20 µm 100 um Figure 2d Figure 2e Figure 2f ov o v ( c h e m r e d u c t i o n ) ( ( ) ) +C ( - - )
Absstract of: AU2025271176A1
A battery pack according to an embodiment of the present disclosure includes a plurality of battery modules stacked on each other, each battery module having at least one battery cell; a control module stacked together with the plurality of battery modules for 5 protection and power conversion of the plurality of battery modules; and a connection module configured to electrically connect the control module and the plurality of battery modules and integrally mounted to the plurality of battery modules and the control module. ov o v
Absstract of: AU2025203910A1
Abstract The present invention relates to the field of lithium batteries, in particular to a lithium-ion battery positive electrode and a lithium-ion battery. The positive electrode comprises a positive electrode current collector and a positive 5 electrode material on the positive electrode current collector, the positive electrode material comprising a positive electrode active material, the positive electrode active material at least comprising a polycrystalline ternary material and a monocrystalline ternary material, wherein the mass percentage content of nickel element in the polycrystalline ternary material is a, and the mass 10 percentage content of nickel element in the monocrystalline ternary material is b; the median particle size D50 of the polycrystalline ternary material is c μm, and the median particle size D50 of the monocrystalline ternary material is d μm; the mass percentage proportion of the polycrystalline ternary material in the positive electrode active material is e, and the mass percentage proportion of 15 the monocrystalline ternary material in the positive electrode active material is i; the area density of the positive electrode is f mg/cm2; the porosity of the positive electrode is h; and a parameter j = c/d + 3e + b/a, characterized in that 80% ≤ e + i ≤ 100%, j/f ≤ 2 and j/h ≥ 20. The lithium-ion battery with the abovementioned positive electrode has better C-rate performance and 20 safety/stability. Abstract The present invention relat
Absstract of: WO2025258977A1
The purpose of the present invention is to provide a system for cutting an electrode (10) (negative/positive), which is conveyed via a reel, at a predetermined pitch during notching process in a secondary battery manufacturing process. The configuration of the present invention includes: an electrode supply unit (120) configured to supply the electrode (10) of a secondary battery; an electrode feeder (130) configured to feed the electrode (10) supplied from the electrode supply unit (120) for cutting; a primary cutting part (140) configured to primarily cut the electrode (10) supplied by the electrode feeder (130); and a secondary cutting part (150) configured to secondarily cut the electrode (10) supplied from the primary cutting part (140). The effect of the present invention is that equipment which cuts the electrode (10) supplied in a reel form at an ultra-high speed with a predetermined pitch according to the specification of a product to be produced, performs a visual inspection, and then loads good and defective products into magazines can be used to achieve at least twice the production volume of conventionally used equipment.
Absstract of: WO2025258994A1
A battery cell of the present invention comprises: an electrode assembly in which a first electrode, a second electrode and a separator interposed therebetween are wound around a winding axis; a can for accommodating the electrode assembly through an open end formed on one side thereof; a lead covering the open end, and having an injection port formed at the center thereof; and a sealing member for sealing the injection port, wherein the sealing member can include: a close contact portion press-fitted into the injection port so as to be into close contact with the inner circumferential surface of the injection port; and a welding portion welded to the inner circumferential surface of the injection port.
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.
Absstract of: AU2025271397A1
The disclosed process relates to a process for selectively purifying a lithium product stream from an aqueous lithium salt-containing solution in a continuous mode, said process comprising the steps of: a) introducing said aqueous lithium salt-containing solution to an arrangement of three or more packed-bed columns in series each filled with a lithium selective sorbent, wherein at least two of said three or more columns are at an adsorption stage, with one at a leading lithium chloride adsorption stage and one or more at a trailing lithium chloride adsorption stage, and at least one of said three or more columns is simultaneously at a lithium chloride desorption stage; b) flowing said aqueous lithium salt- containing solution through said at least two of said three or more columns at a leading lithium chloride adsorption stage and a trailing lithium chloride adsorption stage to adsorb lithium chloride from the aqueous lithium salt-containing solution and respectively form a fully-saturated sorbent and a partially-saturated sorbent; c) flowing a desorbent fluid through said at least one of said three or more columns at a lithium chloride desorption stage to desorb lithium chloride from the fully-saturated sorbent in a column from a leading lithium chloride adsorption stage of a previous cycle in an eluate stream; and d) recovering a lithium product stream from the eluate stream, wherein when the lithium selective sorbent in said column at a leading lithium chloride adsorption
Absstract of: AU2025200427A1
The present application provides a cell safety prediction method, apparatus, device and medium determines a first environmental parameter, and performs a first thermal runaway operation on a target cell according to the first environmental parameter until thermal runaway occurs in the target cell; obtains a first state parameter of the target cell to determine a target heat production model; performs three-dimensional modeling on a battery structure, and performs a second thermal runaway operation on the established model; and obtains a second state parameter during the second thermal runaway operation according to the target heat production model, thereby judging safety of a target battery pack. Through an actual thermal runaway operation, the target heat production model is determined, and through a simulated thermal runaway operation, the safety of the target battery pack is determined according to the target heat production model, which saves the test cost and simplifies a cell safety prediction system; and at the same time, the method reduces requirements of mechanism modeling for basic data, and generally improves the efficiency and accuracy in the prediction of the cell safety. The present application provides a cell safety prediction method, apparatus, device and medium determines a first environmental parameter, and performs a first thermal runaway operation on a target cell according to the first environmental parameter until thermal runaway occurs in the target cel
Absstract of: AU2025261063A1
A battery control device according to an embodiment of the present invention is located in a battery system including a plurality of batteries, and may include: at least one processor; and a memory that stores at least one command executed through the at least one processor. The at least one command may comprise: a command for monitoring the voltage of each of the batteries in a process in which the batteries are connected in parallel to a DC link and charged; a command for sequentially dropping, from the DC link, batteries that have reached a predefined target voltage; and a command for stopping a charging process in a state in which the N batteries are connected to the DC link when only N preset batteries remain connected to the DC link.
Absstract of: WO2025258731A1
This battery storage device comprises: a housing provided with a plurality of partitioning units, which partition the interior of the housing into a plurality of partitioned spaces, and a plurality of opening/closing units, which are provided on different surfaces of the housing; a plurality of mounting units which are formed as extendable shelf structures and respectively provided in the plurality of partitioned spaces, and on which a plurality of batteries are mounted; a plurality of rails which are respectively provided on both side surfaces of the plurality of mounting units and guide the mounting units so as to be extendable in the front-rear direction relative to the housing; chain-type moving units which are respectively provided above the side surfaces of the plurality of mounting units and have chain shapes, and which are provided so that the mounting units return when extended to the outside of the housing; a plurality of fire extinguishing units having bar-shaped bodies, which release a fire extinguishing agent upon detecting a fire and are provided at the upper end of the inside of the partitioned spaces, and arranged parallel to the mounting surfaces of the mounting units to maximize the area of the bodies facing the batteries; and a water injection unit provided on the outside of the housing and formed as a valve to inject water into the housing according to the open/closed state.
Absstract of: WO2025258871A1
The present invention provides: an electrode assembly structure preventing the risk of short circuits due to the width-wise end exposure of an electrode by having a separator covering the side surface of an electrode laminate, the electrode assembly being produced using a zigzag stacking method; and a method for producing the electrode assembly.
Absstract of: WO2025258849A1
An electronic device according to an embodiment may comprise: a battery; a processor comprising at least one temperature sensor; a charger having a first pin electrically connected to a first temperature sensor among the at least one temperature sensor; and a memory for storing instructions, wherein the instructions cause the electronic device to: when a first load is identified, request, through the charger, the battery to provide a first current corresponding to the first load; when a warning signal is received from the charger since the magnitude of the first current discharged from the battery is higher than a threshold value, control the performance of the processor at a first level in order to adjust the magnitude of the first current to be equal to or lower than the threshold value; identify a first temperature corresponding to the magnitude of the first current on the basis of first information regarding the first current provided from the first pin of the charger to the temperature sensor; and control the performance of the processor at a second level higher than the first level on the basis of the first temperature.
Absstract of: AU2025232370A1
The energy storage device according to an embodiment of the present invention comprises: a plurality of battery modules, each comprising a plurality of battery cells; a case for accommodating the plurality of battery modules; and a support frame for supporting the plurality of battery modules within the case, wherein the support frame comprises a lower support part on the top of which at least one battery module is supported, and an upper support part which is disposed above the lower support part, and on the top of which at least one battery module is supported.
Absstract of: AU2024391534A1
A battery enclosure according to an embodiment of the present invention includes: an enclosure having an accommodation space therein; a battery rack fixed in the accommodation space inside the enclosure and including at least one battery; and a control panel which provides an electrical connection between an electrical device located outside the enclosure and the battery rack, wherein the control panel is connected to the battery rack through a first cable, and the first cable extends from the control panel located at one side of the enclosure, toward the other side of the enclosure, within a first distribution space formed in the upper portion of the enclosure.
Absstract of: AU2024387138A1
A battery enclosure according to an embodiment of the present invention comprises: an enclosure including a base fixed to an installation plane; and a battery rack fixed to the base and accommodating at least one battery. The battery rack includes at least one column extending vertically. The base includes two horizontal beams and two vertical beams. The horizontal beams each include a fixing part for fixing the battery enclosure to the installation plane. The position of the fixing part corresponds to the position of the column included in the battery rack.
Absstract of: WO2025258738A1
The present invention relates to a separator structure for a lithium metal battery. More specifically, the separator comprises: a separator; a polymer film in contact with one surface of the separator; and a ceramic coating layer in contact with the other surface of the separator. The polymer film includes a lithium salt and a polymer, and the ratio of the thickness of the polymer film to the thickness of the separator is 1.5 to 3.
Absstract of: WO2025259024A1
Disclosed is a separator for improving the performance and stability of a lithium metal battery. One aspect of the present invention provides a separator for a lithium metal battery, the separator including a porous substrate and a coating layer on at least one surface of the porous substrate, wherein the coating layer includes a metal that does not form an alloy with lithium.
Absstract of: WO2025258914A1
The present invention provides a coating apparatus comprising a coating die. The coating die includes a first die lip having a first discharge port for discharging a first coating solution and a second die lip having a second discharge port for discharging a second coating solution, wherein the first die lip includes a first guide lip and a second guide lip which are spaced apart from each other with the first discharge port therebetween, and an end of the first guide lip is spaced apart from an end of the second die lip in a first direction that is the discharge direction of the first coating solution.
Absstract of: WO2025258925A1
Disclosed are a battery cell and a method for manufacturing a battery cell. The battery cell of the present invention may comprise: a restriction tab part provided in the circumferential direction on the inner circumferential surface of a rivet hole of a can housing; a gasket fitted in contact with the inner circumferential surface of the rivet hole; and a rivet terminal part having a screw thread formed on the outer circumferential surface thereof, wherein the screw thread is inserted into the rivet hole with the gasket interposed therebetween.
Absstract of: WO2025258987A1
Disclosed are a battery cell and a battery module including same. A battery cell includes: a can housing including a receiving flat plate having a terminal hole at a central portion thereof, and a receiving sidewall extending from the periphery of the receiving flat plate in an axial direction perpendicular to the receiving flat plate; an electrode assembly accommodated in an inner receiving space of the can housing and including a jelly-roll shaped electrode cylinder and a core member, wherein the electrode cylinder is formed by winding a first electrode and a second electrode with a separator interposed therebetween and has a core hollow space provided at a central portion thereof, and the core member fills the core hollow space to support the inner circumferential surface of the electrode cylinder; a current collecting member including a first current collecting plate covering one end of the electrode cylinder to be bonded to the first electrode, and a second current collecting plate covering the other end of the electrode cylinder to be bonded to the second electrode; and an electrode terminal mechanically coupled to the core member through the terminal hole and the first current collecting plate and electrically connected to the first current collecting plate.
Absstract of: WO2025259000A1
Disclosed are a current collector plate implemented so that a fuse element electrically connects a rivet terminal and a tab of an electrode of an electrode assembly, and a cylindrical battery cell to which same is applied. A terminal connection part of the current collector plate is provided on a center plate disposed at the center portion of the current collector plate, an electrode connection part is provided on a peripheral plate having a closed loop shape surrounding the center plate, and the fuse element is implemented by a bridge radially connecting the center plate and the peripheral plate. Only by limiting the width and length of the bridge, the bridge can be configured as a fuse element having a fast fusing speed while suppressing an increase in internal resistance due to the bridge.
Absstract of: WO2025258733A1
The present invention relates to a positive electrode additive for a secondary battery, a positive electrode slurry comprising same, and a lithium secondary battery comprising same, wherein the positive electrode additive may include a compound represented by chemical formula 1 or chemical formula 2. The details of chemical formula 1 and chemical formula 2 are as described in the specification.
Absstract of: WO2025259023A1
The present invention relates to a positive electrode active material, a positive electrode comprising same, and a lithium secondary battery, the positive electrode active material enabling the simultaneous solving of existing secondary particle and single particle problems, and comprising particles such as conventional single particles as primary particles, and comprising secondary particles formed by aggregating a plurality of the primary particles, wherein the plurality of primary particles have an average particle size of 1.0 to 3.0 μm measured from a SEM image, the particle size of the primary particles being the particle size based on the major axis of the primary particles, and the plurality of primary particles include disk-type primary particles defined in the present specification, 60 mol% or more of nickel is contained in the total of transition metals, and formula 1 disclosed in the present specification is satisfied, thereby enabling the enhancing of capacity characteristics, high-temperature life characteristics, and rate characteristics of a lithium secondary battery.
Absstract of: WO2025258870A1
The present invention provides: an electrode assembly structure preventing the risk of short circuits due to the width-wise end exposure of an electrode by having a separator covering the side surface of an electrode laminate, the electrode assembly being produced using a zigzag stacking method; and a method for producing the electrode assembly.
Absstract of: WO2025255657A1
There are provided methods and systems for non-wet lithium-ion battery recycling using triboelectrification of black mass or battery scrap material and electrostatic separation based on charge polarity and/or charge magnitude. Methods and systems of the disclosure allow separation, recovery and/or upgrading of battery electrode active components from black mass or battery scrap materials, using an entirely dry process without solvents. Battery electrode active components such as graphite, metal oxides, and metal oxide components may be separated, recovered and/or upgraded using methods and systems of the disclosure. In some embodiments, methods include pneumatic conveying for triboelectrification of black mass or battery scrap material followed by separation in a free-fall electrostatic charged-particle separator.
Absstract of: US2025382393A1
An aqueous binder and its use in hard carbon anodes of sodium-ion batteries are provided. The aqueous binder includes a first component and a second component, the first component is one or more of sodium-ion-containing styrene derivative polymers or sodium-ion-containing pyran derivative polymers, and the second component is a conductive polymer containing ether bonds. By controlling addition amounts of the first component and the second component, an aqueous binder containing a large number of polar hydrophilic groups is obtained, which is suitable for hard carbon anodes of sodium-ion batteries. The aqueous binder features simple and convenient preparation, economical raw materials, and environmental friendliness with deionized water as the solvent. The sodium-ion battery prepared with the hard carbon anode using this aqueous binder has high initial Coulombic efficiency and good cycling stability and rate performance, thus showing promising prospects for commercial application.
Absstract of: US2025382197A1
Provided is a method for producing a cathode active material for a secondary battery which enables configuring a battery with improved battery resistance. The method includes providing a lithium transition metal composite powder in which a ratio of the number of moles of nickel atoms to the total number of moles of metal atoms other than lithium is 0.5 or more and less than 1 and a ratio of the number of moles of cobalt atoms to the total number of moles of metal atoms other than lithium is 0 or more and less than 0.5, the lithium transition metal composite powder having a layered structure; contacting the lithium transition metal composite powder with a cobalt raw material to obtain a cobalt-adhered composite oxide; subjecting the cobalt-adhered composite oxide to a first heat treatment performed at a temperature higher than 600° C. and lower than 800° C. to obtain a first heat-treated product; contacting the first heat-treated product with a niobium raw material to obtain a niobium-adhered composite oxide; and subjecting the niobium-adhered composite oxide to a second heat treatment performed at a temperature higher than 300° C. and lower than 500° C. to obtain a second heat-treated product.
Absstract of: US2025382195A1
An oxide which has a garnet-type crystal structure including Li, La, and Zr, in which the crystal structure includes a first tetragonal phase and a second tetragonal phase, a lattice constant of the first tetragonal phase and a lattice constant of the second tetragonal phase are different from each other, a ratio (a/c) of a and c of the lattice constant of the first tetragonal phase falls within a range of 1.003 to 1.03, and a ratio (a/c) of a and c of the lattice constant of the second tetragonal phase falls within a range of 1.001 to 1.01.
Absstract of: US2025385370A1
A battery module may include a first sub-module and a second sub-module each including a battery cell assembly. Additionally, the battery cell assembly may include a plurality of stacked battery cells, a busbar configured to electrically connect the battery cells, and a busbar frame covering the battery cell assembly on at least one side. Further, the battery module may also include a module housing that simultaneously houses the first sub-module and the second sub-module, and a terminal assembly located at a portion overlapping with an area between the first sub-module and the second sub-module. Additionally, an opening may be formed in a part of the module housing, and the terminal assembly is connected to the terminal busbar of each of the first sub-module and the second sub-module through the opening.
Absstract of: US2025385409A1
A battery standing method comprises the following steps: S1: putting a battery subjected to electrolyte injection into an electrolyte injection capsule, and then transferring the capsule and the battery in the to a first transfer conveying line; S2: conveying the capsule and the battery in the capsule to a standing unit through the first transfer conveying line; S3: transporting the capsule on the first transfer conveying line and the battery in the capsule into a standing cavity of the standing unit, and electrically connecting an auxiliary energizing mechanism on the standing cavity with a positive electrode probe and a negative electrode probe of the capsule; and S4: connecting the auxiliary energizing mechanism on the standing cavity with a power supply to supply power to a heating plate of the capsule, and energizing the heating plate to heat the battery in the capsule.
Absstract of: US2025385396A1
A tab welding structure and a battery are provided, relating to the field of battery technology. The tab welding structure includes a wound body with an electrode plate, and a full tab. The full tab is electrically connected to the electrode plate and located at one end of the wound body. A current collector is welded to the full tab to form welding point groups. The welding point groups are arranged in a radial pattern around a center of the wound body. Each welding point group includes welding points arranged in a wave pattern along a radial direction of the wound body. This configuration enhances the uniformity of current conduction in the wound body and reduces the amount of current loss.
Absstract of: US2025385388A1
Embodiments of the present application provide an isolation film, a preparation method therefor, and a secondary battery and an electric apparatus related thereto. The isolation film comprises a first porous base film, a second porous base film, and a coating layer. The coating layer is arranged between the first porous base film and the second porous base film. The coating layer comprises first particles. The first particles comprise at least one of molybdenum disulfide, silicon oxide, a transition metal oxide, or conductive carbon particles.
Absstract of: US2025385400A1
In the present method of manufacturing a secondary battery, a current collector is a first stack in which a plurality of metal plates are stacked, the current collector includes a first region and a second region, a positive electrode tab group is joined to the first region, a positive electrode current collection portion is joined to the second region, the method including: a preparation step of preparing the current collector having a first joining portion in which the metal plates are partially joined together; a first tab group connection step of joining the positive electrode tab group to the current collector; and an other conductive member connection step of joining the positive electrode current collection portion to the current collector. According to the present method of manufacturing the secondary battery, occurrence of damage to the tab group can be suppressed.
Absstract of: US2025385307A1
A lithium-ion battery, including a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive electrode includes a positive electrode material layer containing a lithium cobalt oxide, the negative electrode includes a negative electrode current collector and a negative electrode material layer formed on the negative electrode current collector, the negative electrode material layer includes a negative electrode active material, and the non-aqueous electrolyte includes a non-aqueous organic solvent, a lithium salt and an additive. The non-aqueous organic solvent includes a carboxylic ester. The lithium-ion battery provided by the application has good performance under high temperature and low temperature conditions.
Absstract of: US2025385334A1
An ECU is a control apparatus for an electricity storage system. The electricity storage system includes a battery cell, a temperature sensor, and a cooling and temperature raising device. The ECU includes a CPU. The CPU determines an estimated maximum value of the temperature difference between the detected temperature and the electrode temperature of the battery cell, and an estimated required time period required for the temperature difference to reach the maximum value. When a temperature raising duration exceeds the estimated required time period, the CPU reduces a temperature difference estimated value of the temperature difference between the temperature detected by the temperature sensor and the electrode temperature while causing the temperature raising to be continued to increase an electrode temperature estimated value of the battery cell and increase a charging electric power limit value of the battery cell corresponding to the electrode temperature estimated value.
Absstract of: US2025385320A1
A battery cell, a battery, an electric device, and a processing method for a battery cell are provided. The battery cell comprises an electrode assembly and active structures. The electrode assembly comprises a positive electrode sheetand a negative electrode sheet, wherein the positive electrode sheet comprises first straight segments and first bent segments, and the negative electrode sheet comprises second straight segments and second bent segments, the first straight segmentsand the second straight segments are alternately stacked to form straight portions, and the first bent segments and the second bent segments are alternately stacked to form corner portions. At least some of the active structures are provided between the first bent segments and the second bent segments adjacent to the inner sides of the first bent segments. In this way, the problem of ion precipitation at the corner portions can be solved.
Absstract of: US2025385314A1
The present application discloses an electrolyte for a lithium secondary battery, a secondary battery, and an electric device. The electrolyte for a lithium secondary battery includes a sulfate ester and difluorophosphate ions, a molar ratio of the sulfate ester to the difluorophosphate ions is (0.2 to 30):1, and a molar concentration of the sulfate ester is 0.04 mol/L to 0.16 mol/L.
Absstract of: US2025385350A1
A first spacer is disposed between a first sealing plate and an electrode assembly. The first spacer includes a first base portion, a first outer peripheral wall, and a first inner wall. The first base portion is provided with a plurality of through holes. The first outer peripheral wall extends from an outer peripheral edge of a surface of the first base portion on the first sealing plate side toward the first sealing plate, and has a first portion and a second portion facing each other. The first inner wall is provided to connect the first portion and the second portion of the first outer peripheral wall.
Absstract of: WO2025256651A1
The present invention relates to the technical field of battery heat dissipation. Provided are a battery system and an electric device. The battery system comprises a case body, a first cold plate, a second cold plate, and a plurality of battery cell modules, wherein the first cold plate and the second cold plate are oppositely arranged on two sides of the case body, and an accommodating cavity is formed among the first cold plate, the second cold plate and the case body; the plurality of battery cell modules are arranged in the accommodating cavity, and a third cold plate is provided in each battery cell module, and is perpendicular to the first cold plate; a cooling channel is formed inside each of the first cold plate, the second cold plate and the third cold plates; and the cooling channels in the third cold plates in the plurality of battery cell modules are in communication with each other. The battery system of the present invention comprises three cold plates, which can increase the heat exchange area and improve the thermal management performance of the battery system.
Absstract of: WO2025256662A1
Provided in the present application are a tab glue, a negative electrode sheet and a lithium-ion battery. The tab glue is an emulsion. The surface tension of the emulsion is 45-60 mN/m, and the viscosity thereof is 2000 mPa·s or more. The tab glue is favorable for reducing the capacity loss of a lithium-ion battery.
Absstract of: WO2025256622A1
An electrode assembly and a battery cell. The electrode assembly comprises: a plurality of positive electrode plates (1) and a plurality of negative electrode plates (2), wherein the positive and negative electrode plates are alternately stacked; and separators (3), wherein the separators are each arranged between a positive electrode plate (1) and a negative electrode plate (2) which are adjacent to each other. Each positive electrode plate (1) comprises a main body and a positive tab (101) arranged on one side of the main body; each negative electrode plate (2) has a negative tab (201) spaced apart from the positive tab (101); each main body has a conductive region (100) and an insulating region (200); the insulating region (200) is arranged at the edge of the side of the conductive region (100) having the positive tab (101), and the insulating region (200) protrudes from the negative electrode plate (2); and a clearance recess (102) is provided on the insulating region (200), and the clearance recess (102) is configured to provide clearance for the root of the bent negative tab (201). The electrode assembly of the present disclosure not only facilitates bending the negative tab (201), but also facilitates reducing the risk of the positive electrode plate (1) being pressed by the bent negative tab (201), and also facilitates reducing the effect on the capacity of the battery cell.
Absstract of: WO2025256616A1
Provided in the present application are a battery-pack cooling system and a battery pack. In the battery-pack cooling system, liquid cooling plates (1) are each provided with a coolant flow channel (11), which is configured for the flow of a coolant; the coolant in the coolant flow channels (11) can exchange heat with battery modules of a battery pack, and the coolant can flow through a liquid intake pipe assembly (2), the coolant flow channels and a liquid output pipe assembly (3) in sequence; and the liquid intake pipe assembly (2) comprises a main liquid intake pipe (21) and a first communication pipe (22), the main liquid intake pipe (21) being configured for the entry of the coolant, and the first communication pipe (22) being connected to the main liquid intake pipe (21) and being configured to divide the coolant into two parts, with one part flowing to one of the liquid cooling plates (1) located in the middle, and the other part flowing to the other liquid cooling plates (1).
Absstract of: US2025385410A1
A secondary battery includes a case including an accommodation part and having a width direction (X-axis direction) and a height direction (Y-axis direction) defined, an electrode assembly accommodated in the accommodation part, a first current collecting plate on the electrode assembly, an injection member on the first current collecting plate, and a cap assembly on the case, wherein the electrode assembly includes a first electrode, a second electrode, and a separator therebetween, the electrode assembly includes a hollow part, the first current collecting plate includes a first hole overlapping the hollow part, the injection member includes an inlet and an outlet, the injection member includes a second hole overlapping the first hole, the injection member includes a protrusion part in the first hole, the protrusion part spaced apart from the first current collecting plate, and a width of the protrusion part changes while extending from the inlet to the outlet.
Absstract of: US2025385407A1
The secondary battery electrode includes a substrate including an uncoated portion including a first surface and a second surface, the second surface being opposite the first surface, and a coated portion on which a first active material layer and a second active material layer are coated, the second active material layer being on a surface of the substrate opposite the first active material layer. The secondary battery also includes an electrode tab coupled to the substrate, a first tape adhered to a portion of the first active material layer around the electrode tab and the uncoated portion, and a second tape opposite the first tape and adhered to a portion of the second active material layer around the uncoated portion. Further, a tensile strength of at least one of the first tape or the second tape is 230 N/mm2 or greater.
Absstract of: US2025385351A1
A protective cover for protecting a battery cell top surface of a battery cell, comprising a main protective wall with an extension in a longitudinal direction and a width direction, and a top surface facing upwardly in the height direction and a bottom surface facing downwardly in the height direction, and at least one battery cell attachment portion which is arranged to attach the protective cover to the battery cell such that the bottom surface faces the battery cell top surface. The at least one battery cell attachment portion configured to provide a snap-fit connection to the battery cell.
Absstract of: US2025385403A1
A battery cell, a battery, and an electric device are provided. The battery cell has a battery housing, where a pole assembly is disposed on a first wall of the battery housing, the pole assembly includes a pole body, and the pole body includes: a bearing portion, the bearing portion being inserted through a mounting hole of the first wall; and a bending portion, the bending portion being connected to one end of the bearing portion in a central axis direction, bent relative to the bearing portion, and disposed on one side of the first wall, and a bending resistance strength of the bending portion being less than a bending resistance strength of the bearing portion. The battery includes the battery cell described above. The electric device includes the battery described above.
Absstract of: US2025385352A1
A cylindrical battery includes a battery element, an outer can having a bottomed cylindrical shape with an opening on one side, a sealing body that seals the opening of the outer can, and a welded portion in which the outer can and the sealing body are welded. The outer can houses the battery element, and the welded portion extends in a first direction along a boundary between the outer can and the sealing body. A value obtained by dividing a maximum welding depth from an outermost surface of the welded portion in the first direction by a maximum thickness of a thickness of the outer can and a thickness of the sealing body is 0.4 or more and 1.5 or less.
Absstract of: US2025385246A1
An anode for an energy storage device includes an electrically conductive layer and a surface layer disposed over the electrically conductive layer. The current collector surface may be characterized by a plurality of grooves. A lithium storage layer overlays the surface layer. The lithium storage layer is characterized by a first average thickness and may include at least 40 atomic % silicon, germanium, or a combination thereof. In at least one lateral dimension, the grooves may be spaced apart by an average spacing distance that is 0.4 to 50 times the first average thickness.
Absstract of: US2025385260A1
A method for fabricating a graphene according to an embodiment of the present invention includes forming a precursor layer including a polymer on a metal pattern layer having a grid shape, and irradiating laser to the precursor layer to form a graphene layer. According to the method, quality and uniformity of laser-induced graphene may be increased without an additional complicated process.
Absstract of: US2025385261A1
The present disclosure provides a composite powder including a carbon material having pores, a first heat-impregnating material and a second heat-impregnating material.
Absstract of: US2025385333A1
Disclosed is a battery module including a battery stack including a plurality of battery cells stacked. The battery module further includes a pad member, a holder member provided at a side of the battery stack, a busbar assembled to the holder member and electrically connected to the battery stack, and a first conductive sheet provided to face the busbar and containing a thermally conductive material. The plurality of battery cells each have a lead region tightly attached to the busbar. The first conductive sheet is provided to face the busbar with the lead region interposed therebetween, and the first conductive sheet is tightly attached to the lead region or the busbar.
Absstract of: US2025383241A1
Disclosed are an apparatus and method for a state of a battery cell. The apparatus diagnoses the state of the battery cell with high accuracy by dividing the battery cell into a plurality of regions, constructing a Randle circuit for each region, determining a current value and a resistance value of each region based on the Randle circuit, determining the amount of internal heat generation of each region by using the current value and the resistance value, determining an amount of heat transfer and an amount of heat convection of each region based on an outside temperature value and a previous temperature value of each region, estimating a temperature of each region based on the amount of internal heat generation, the amount of heat transfer, and the amount of heat convection of each region, and diagnosing the state of the battery cell by using the temperature of each region.
Absstract of: US2025385317A1
A secondary battery and an electric device. The secondary battery includes a negative electrode sheet and an electrolyte, where the negative electrode sheet includes a negative electrode current collector and a negative electrode active layer located on at least one surface of the negative electrode current collector, the negative electrode active layer includes graphite, and the areal density of the negative electrode active layer is 0.09 mg/mm2 to 0.16 mg/mm2; the lithium ion conductivity of the electrolyte at 25° C. is 10 mS/cm to 20 mS/cm; and the electrolyte includes a first solvent, the first solvent having a general structural formula of R1-COO—R2, where R1 and R2 are each independently selected from any one of C1-C5 alkyl and C1-C5 haloalkyl.
Absstract of: US2025385311A1
An electrolytic solution, a secondary battery and an electric device are described. The components of the electrolyte comprise a functional compound represented by formula (1). In formula (1), T1-T3 are each independently selected from any one of an alkyl group having 1-10 carbon atoms, an alkenyl group having 2-10 carbon atoms, an alkynyl group having 2-10 carbon atoms, and groups represented by following formulae (a)-(f). Among T1-T3, at least one is selected from the group represented by formula (a), and at least one is selected from the group represented by formula (b), (c), (d) or (e). In a charging/discharging process of the electrolyte, the functional compound represented by formula (1) can capture an oxidation product and improve the toughness of a formed SEI film, thereby improving the cycle performance of a secondary battery.
Absstract of: US2025385306A1
A fluorinated gel polymer electrolyte for a vehicle battery cell, a battery cell, and a method of forming a fluorinated gel polymer electrolyte. The fluorinated gel polymer electrolyte includes a polymerized gel polymer electrolyte precursor. The gel polymer electrolyte is involatile up to 150 degrees Celsius. The gel polymer electrolyte precursor includes a lithium salt present in the range of 10 to 50 percent by weight of the total weight of the of the gel polymer electrolyte precursor, a fluorinated monomer present in the range of 10 to 50 percent by weight of the total weight of the gel polymer electrolyte precursor, and a non-aqueous organic solvent present in the range of 50 to 90 percent by weight of the total weight of the gel polymer electrolyte precursor.
Absstract of: US2025385309A1
An electrolyte for a lithium secondary battery according to the present disclosure includes: a lithium salt; an organic solvent; an additive comprising a compound including a carbon-carbon triple bond, a linear ether group, and a 4- or 5-membered cyclic ether group; and a sulfur compound including a sulfur-containing heterocyclic structure.
Absstract of: US2025385368A1
Provided are a case, a battery, an electric device and a method for assembling a case. The case comprises a frame and an end plate connected to the frame, wherein the end plate comprises a first connecting portion and a second connecting portion both facing the frame; a circumferential edge of the first connecting portion and a circumferential edge of the second connecting portion are both connected to the frame; and the whole circumferential edge of at least one of the first connecting portion and the second connecting portion is continuously in sealed connection with the frame. The end plate and the frame are connected in a dual-connection fastening method in which the first connecting portion and the second connecting portion are configured to respectively connect to the frame, such that the case has a simple structure, and has a high assembly efficiency, a low cost and good reliability.
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: US2025385401A1
An electrode plate body includes a coated region and a blank foil region located at one end corner of the electrode plate body. A notched region is provided at another end corner of the electrode plate body. A first boundary line is between the blank foil region and the coated region. An angle between a right-angled edge of the blank foil region in the short-side direction of the electrode plate body and the first boundary line ranges from 30° to 60°. A second boundary line is between a notched region and the coated region. An angle between the right-angled edge of the notched region in the short-side direction of the electrode plate body and the second boundary line ranges from 30° to 60°.
Absstract of: US2025385392A1
A battery module includes a battery stack including a plurality of battery cells, a holder member provided at one side of the battery stack, busbars coupled to the holder member and electrically connected to the battery stack, and an overlap region in which at least some of lead regions of the plurality of battery cells of the battery stack overlap one another is formed, in which the overlap region is attached to and in close contact with the busbar.
Absstract of: US2025385386A1
A separator substrate, a separator comprising the same, and an electrochemical device comprising the same are provided. The separator substrate comprises a crosslinked polyolefin resin and chromium (Cr), wherein the crosslinked polyolefin resin comprises a silicon-containing organic group grafted to a polyolefin chain, a gel fraction of the separator substrate is 3% to 80%, a standard deviation (Δd) of thickness measured in at least 100 random points is 0.5 μm or less, and a number of spots having a long side length of 50 μm or more per m2 is 10 or less.
Absstract of: US2025385376A1
The present battery assembly includes: a first binding bar provided to cover a side of each of a plurality of battery cells on which an electrode terminal is disposed; a second binding bar provided to cover a side of each of the battery cells opposite to the side on which the electrode terminal is disposed; and an electrode-terminal-side cushion provided at at least one corner portion of the battery cell located, on the side on which the electrode terminal is disposed, in a direction intersecting a direction in which the battery cells each including the first side surface on which the electrode terminal is disposed are stacked, so as to extend along the direction in which the battery cells are stacked, wherein the first binding bar and the second binding bar are fastened and fixed.
Absstract of: US2025385391A1
A battery pack according to an embodiment of the present disclosure includes a plurality of battery cells, a filler member filled in a space between the plurality of battery cells, and a busbar assembly electrically connected to the plurality of battery cells, and having a filler member injection hole for injecting the filler member.
Absstract of: US2025385358A1
The disclosure relates to a battery cell stack assembly for a battery module or a battery pack that includes a plurality of prismatic battery cells, stacked next to each other in at least three longitudinally extending and parallel battery cell rows, and a bottom support plate, wherein the at least three battery cell rows are supported on a support surface of the bottom support plate which faces upwardly in the height direction. The disclosure also relates to a battery pack, a battery module, a vehicle, and a method.
Absstract of: US2025383405A1
A high-voltage sampling circuit includes a high-voltage MOS transistor and a battery sampling device. An output terminal of the battery sampling device is connected to a gate of the high-voltage MOS transistor and is configured to output a high or low level; an analog-to-digital conversion terminal thereof is connected to a source of the high-voltage MOS transistor and is configured to collect a voltage at the source of the high-voltage MOS transistor. A drain of the high-voltage MOS transistor is connected to the positive electrode of the battery pack through a first voltage-dividing resistor, and the source thereof is connected to the negative electrode of the battery pack through a second voltage-dividing resistor. The battery sampling device is configured to, when outputting a high level to the high-voltage MOS transistor, collect the voltage passing through the MOS transistor and convert the voltage to obtain a supply voltage of the battery pack.
Absstract of: US2025383409A1
A diagnosis device for an on-vehicle secondary battery includes a storage element that stores a database in which the model of a vehicle and nominal battery capacity are associated with the model of the secondary battery, and correlation data indicative of a correlation between voltage, current, and temperature values for each model of the secondary battery, and the degradation state of the secondary battery. An acquisition processing element refers to the database to acquire the model of the secondary battery based on the model of the vehicle and a value of the nominal battery capacity of the secondary battery, and acquires voltage, current, and temperature values while the secondary battery is charging or discharging. A determination processing element determines the degradation state of the secondary battery using the correlation data corresponding to the model of the secondary battery based on the voltage, current, and temperature values of the secondary battery.
Absstract of: US2025383408A1
The present invention provides a server for diagnosing a defect in a battery, the server including a server communication unit configured to receive battery data including at least one of a battery voltage, a battery current, and a battery temperature, which is a temperature of the battery, from a battery management system (BMS); a server storage unit configured to store a plurality of internal resistance values of the battery calculated based on the battery data at each diagnosis time point for diagnosing the defect in the battery; and a server control unit configured to extract a plurality of previous diagnosis time points corresponding to a predetermined number of samples based on a diagnosis time point, calculate a moving average, compare an internal resistance value with an upper band threshold, and a lower band threshold, and diagnose the defect in the battery.
Absstract of: US2025383402A1
A relay failure diagnosing method is a relay failure diagnosing method for an electricity storage device system that includes multiple electricity storage device packs. The relay failure diagnosing method is executed by a controller. The relay failure diagnosing method includes diagnosis processing and change processing. In the diagnosis processing, a failure of a relay is diagnosed for one or some of the multiple electricity storage device packs at startup of the electricity storage device system. In the change processing, an electricity storage device pack that is to be a target of failure diagnosis is changed.
Absstract of: US2025381831A1
The present invention relates to a perfected battery (1) for vehicles, comprising: a housing (2) bounded by a cover (3) and configured to receive inside: a battery pack (4) configured to store electrical energy and power a motor-alternator (8) of said vehicle, anda service battery (5) in electrical communication with said motor-alternator (8) and configured to: store electrical energy, andpower the services of the vehicle,an inverter (6) configured to: put said batteries (5, 6) and said motor-alternator (8) in electrical communication with each other,regulate the delivery of electrical energy from said battery pack (4) to said motor-alternator (8) so that the latter exerts a predefined driving torque on a transmission of the vehicle.
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: WO2025256216A1
Provided in the present application are an electrochemical apparatus and an electronic apparatus. The electrochemical apparatus comprises a negative electrode sheet and an electrolyte, the negative electrode sheet comprising a negative electrode material layer; the negative electrode material layer comprises a silicon element, on the basis of the total mass of the negative electrode material layer, the mass percentage content of silicon being 20%-50%; the electrolyte comprises a compound of formula (I) and ethylene carbonate, on the basis of the total mass of the electrolyte, the mass percentage content of the ethylene carbonate being 5%-40%. The negative electrode material layer comprises the silicon element, and the electrolyte comprises the compound of formula (I) and the ethylene carbonate. Controlling the mass percentage content of the silicon element and the ethylene carbonate to be within the described ranges helps to improve the ion transport performance and stability of solid-state electrolyte interfaces, thus improving the charging/discharging efficiency and cyclic stability of electrochemical apparatuses.
Absstract of: WO2025256229A1
A negative electrode sheet, a lithium-ion battery and an electric apparatus. The negative electrode sheet comprises a current collector and an active layer arranged on the surface of the current collector, wherein the active layer comprises an inner active layer and an outer active layer, which are stacked, the outer active layer being arranged on the side of the inner active layer away from the current collector; the inner active layer comprises a first active material; the outer active layer comprises a second active material; and the first active material includes silicon monoxide and/or stannous oxide, and the second active material includes silicon.
Absstract of: US2025385345A1
In the present disclosure, a method, an apparatus, and a system for collecting carbon using a fuel cell principle are disclosed. More specifically, the carbon capture device may comprise an air cartridge in which a gas including a carbon component is introduced; a fuel cartridge in which a fuel is injected; a fuel cell stack; a fuel supply line for supplying the fuel between the fuel cartridge and the fuel cell stack; and a controller, wherein the fuel cell stack may include: an anode unit including a fuel electrode for performing an oxidation reaction of the fuel supplied from the fuel supply line; a cathode unit including an air electrode for performing a reduction reaction of the gas introduced from the air cartridge; and an electrolyte unit including an electrolyte for transferring metal ions generated by the oxidation reaction of the fuel between the anode unit and the cathode unit.
Absstract of: US2025385319A1
A secondary battery includes an electrode assembly configured to have a wound structure including a first electrode, a second electrode and a separator between the first electrode and the second electrode; a case having an open area in a first side thereof, the open area being configured to accommodate the electrode assembly; and a cap assembly coupled to the first side of the case and configured to close the open area, wherein the cap assembly includes a cap plate seated in and coupled to the open area of the case and having a through-hole; and a terminal plate including a body and an insertion portion extending through the through-hole of the cap plate, and wherein the first electrode includes an electrode tab having a first end connected to the terminal plate.
Absstract of: US2025385339A1
Aspects of this disclosure relate to a system for energy storage with integrated heating. The system can include a battery cell. The system can include a battery management board assembly coupled to the battery cell. The battery management board assembly can include a printed circuit board, an integrated circuit coupled to the printed circuit board and configured to monitor the battery cell, and an integrated heating element integrated with the printed circuit board and configured to heat the battery cell.
Absstract of: US2025385329A1
A battery module includes a battery stack including a plurality of batteries stacked along a first axis, and a sensing module coupled to a side of the battery stack. The sensing module may include a substrate part provided above the battery stack, and a temperature sensing part connected to a side of the substrate part and having a side provided to be in contact with the battery stack.
Absstract of: US2025385332A1
Embodiments described herein relate to methods of recycling battery waste. In some aspects, a method can include applying a first heat treatment at a temperature of between about 100° C. and about 700° C. to the battery waste, the first heat treatment decomposing at least about 80 wt % of the binder, separating the electrode material from the current collector, and applying a second heat treatment at a temperature between about 400° C. and about 1,200° C. to the electrode material to produce a regenerated electrode material, the second heat treatment decomposing at least 90 wt % of binder remaining in the electrode material to produce a regenerated electrode material. In some embodiments, the method can include applying a surface treatment to the electrode material to remove surface coatings and/or surface impurities from the electrode material. In some embodiments, the surface treatment can include applying a solvent to the electrode material.
Absstract of: US2025383149A1
Provided is an orthogonal-axis power transmission device. The orthogonal-axis power transmission device according to an embodiment of the present inventive concept includes: a main structure assembly forming an exterior structure and having a space portion formed therein, the space portion being sealed; an input shaft assembly connected to one side of the main structure assembly, and to which rotational power of a motor is input; an output shaft assembly connected to the other side of the main structure assembly intersecting the input shaft assembly, and from which the rotational power of the motor is output; and a link assembly for changing a power transmission direction arranged to operate in the space portion of the main structure assembly to prevent propagation of noise or vibration, connected to the input shaft assembly and the output shaft assembly within the main structure assembly by a link method, and changing the power transmission direction from the input shaft assembly to the output shaft assembly.
Absstract of: US2025383145A1
A method of manufacturing ceramic tape includes a step of directing a tape of partially-sintered ceramic into a furnace. The tape is partially-sintered such that grains of the ceramic are fused to one another yet the tape still includes at least 10% porosity by volume, where the porosity refers to volume of the tape unoccupied by the ceramic. The method further includes steps of conveying the tape through the furnace and further sintering the tape as the tape is conveyed through the furnace. The porosity of the tape decreases during the further sintering step.
Absstract of: US2025383404A1
The present disclosure provides apparatuses and methods of performing controlling actions. The method includes charging a battery having a cathode. The cathode includes a redox indicator. The battery is discharged, where discharging the battery includes identifying a potential drop of the redox indicator. The controlling action is performed based on the potential drop.
Absstract of: US2025382416A1
Provided are a lithium battery separator based on a reaction control agent, and a preparation method for a lithium battery separator. The lithium battery separator is prepared based on a high-molecular weight poly-p-phenylene terephthalamide polymer solution with low apparent viscosity. A preparation method for the high-molecular weight poly-p-phenylene terephthalamide polymer solution with low apparent viscosity includes the following steps: adding a reaction control agent in the process of synthesizing poly-p-phenylene terephthalamide from p-phenylenediamine and terephthaloyl chloride to obtain a high-molecular weight poly-p-phenylene terephthalamide polymer solution with low apparent viscosity containing the reaction control agent, where a concentration of the reaction control agent in the high-molecular weight poly-p-phenylene terephthalamide polymer solution with low apparent viscosity is less than 300 ppm, and the reaction control agent is a solvent which is miscible with the first solvent and capable of curing the poly-p-phenylene terephthalamide at the same time.
Absstract of: WO2025256204A1
Provided in the present application are a secondary battery and an electronic apparatus. The secondary battery comprises a positive electrode and an electrolyte. The positive electrode comprises a lithium composite metal oxide, a binder, and an inorganic additive. A metal element in the inorganic additive comprises at least one of aluminum, magnesium, titanium, zirconium, niobium, indium, tungsten, tin, zinc, or antimony. The electrolyte comprises fluoroethylene carbonate, a nitrogen-containing lithium salt, and propyl propionate. In the secondary battery provided in the present application, when, on the basis of the mass of the electrolyte, the total mass percentage content of the fluoroethylene carbonate and the nitrogen-containing lithium salt is 0.76% by mass or more, but 10.17% by mass or less, and the mass percentage content of the propyl propionate is 12% by mass or more, but 65% by mass or less, the lithium-ion acceptance of the secondary battery at a low temperature can be improved, an increase in the initial electric resistance thereof at a low temperature can be inhibited, and the high-temperature performance of the secondary battery can also be improved.
Absstract of: WO2025256172A1
Disclosed in the present application are a battery and an electric apparatus. The battery comprises battery cells and busbar components, wherein each battery cell comprises a casing and electrode terminals, the casing having a first wall, and the electrode terminals being arranged on the first wall; the busbar components are connected to the electrode terminals, and the busbar components are configured to electrically connect the plurality of battery cells; and each busbar component is provided with an accommodating portion, and at least part of each electrode terminal is accommodated in the accommodating portion. In the direction of thickness of the first wall, the electrode terminals and the busbar components can share part of the space, thereby increasing the space utilization rate and increasing the energy density of the battery.
Absstract of: WO2025256205A1
Disclosed in the present application are a secondary battery and an electronic device. The secondary battery comprises an electrolyte and a separator, wherein the separator comprises a polyolefin substrate and a coating disposed on at least one surface of the polyolefin substrate, the coating comprising inorganic particles; and the electrolyte contains specific amounts of an ether nitrile, butanedinitrile, a propionate and a boron-containing lithium salt. In the present application, by setting the total content of the ether nitrile, the butanedinitrile and the propionate in the electrolyte within a specific range and setting the total content of the butanedinitrile and the boron-containing lithium salt within a specific range, the decomposition of the ether nitrile and the propionate is inhibited, and the formation of a stable coating film therefrom on a surface of a positive electrode is facilitated; therefore, not only can the heat resistance of the separator be improved, but the safety performance and vibration resistance of the secondary battery can also be significantly improved.
Absstract of: US2025385327A1
A battery test apparatus includes an enclosed battery holder which detachably holds a secondary battery, a thermostatic oven in which the battery holder is held, and a charge and discharge test device which charges and discharges the secondary battery held in the battery holder to test the secondary battery. The battery holder is constituted of a fireproof and pressure resistant container capable of withstanding ignition of the secondary battery. Since an exhaust port is connected to an exhaust pipe which discharges gas in the battery holder when the secondary battery ignites, the exhaust port discharges the gas to the outside of the thermostatic oven to release its pressure.
Absstract of: US2025385328A1
A wiper system for an electrode in an electrochemical cell utilizes a wiper blade in contact with a surface of the electrode, a blade support having a blade mount on which the wiper blade is mounted, the blade support biasing the wiper blade toward the surface of the electrode to provide a uniformly distributed contact force between a surface of the wiper blade and the surface of the electrode, a translatable carriage on which the blade support is mounted, a carriage drive on which the carriage is mounted to translate the carriage through space, and a chassis on which the carriage drive is mounted, the chassis permitting the wiper blade to contact the electrode during operation of the wiper system.
Absstract of: US2025385312A1
An electrochemical apparatus including a cell, the cell including a positive electrode, a negative electrode, an electrolyte, and a separator, where an outermost electrode of the cell has a curved portion and a straight portion, a length of the straight portion is L mm, a radius of the curved portion is D mm, and 5≤L/D≤10; and the electrolyte includes propylene carbonate, and based on a mass of the electrolyte, a percentage of the propylene carbonate is A %, and 5≤A≤15.
Absstract of: US2025385335A1
A dynamically pressurized pouch battery system. One or more pouch batteries are placed in a fixed volume enclosure, which also contains coolant in direct contact with the pouch battery(s). A pump pumps the coolant into and out of the enclosure, thereby varying the pressure exerted by the coolant upon the exterior of the pouch batteries. The pump may cause the coolant to provide more or less pressure depending on battery cell conditions, such as voltage, state-of-charge, age, state-of-health, or temperature.
Absstract of: US2025385318A1
A secondary battery cell includes a battery cell enclosure, an electrolyte, and an electrode assembly. The electrode assembly includes a cathode with a cathode area, an anode, a separator (i) with an anode-facing side and a cathode-facing side, (ii) with a bonding area on the cathode-facing side and completely outside the cathode area, and (iii) configured to physically separate the cathode and the anode, and an adhesive strip applied solely on the cathode-facing side of the separator. The cathode is either partially enclosed or completely enclosed by the separator. The adhesive strip is completely in the bonding area. Two segments of the adhesive strip on opposing sides of the cathode are bonded to each other.
Absstract of: US2025385313A1
An electrochemical device including a cell, where the cell includes a positive electrode, a negative electrode, an electrolyte, and a separator, an outermost electrode of the cell has a curved portion and a straight portion, a length of the straight portion is L mm, a radius of the curved portion is D mm, and 5≤L/D≤10; and the electrolyte includes a dinitrile compound, and based on a mass of the electrolyte, a percentage of the dinitrile compound is A %, and 4≤A≤10.
Absstract of: US2025385542A1
An uninterruptible power supply system with a housing, at least one input port configured to receive power from an external power source, at least one output port configured to provide power to a respiratory device, a battery pack contained within the housing, a power supply circuit configured to selectively bypass the battery pack and enable the power from the external power source to provide power to the respiratory device, while allowing power to charge the battery pack of the power supply; and a warning system configured to provide an indication of the power level of the battery pack. The uninterruptible power supply system allowing locking of cables inserted into the input and output ports. The uninterruptible power supply system allowing daisy-chaining to improve the total power level.
Absstract of: US2025385523A1
Systems and methods for providing power to food carts using solar energy, battery storage, and hydrogen fuel cell energy. Systems comprise a plurality of solar panels arranged on a food cart, a battery system disposed in a basement, and a controller configured to monitor and control the power flow between the solar panels, the battery system, and the food cart, where the control system determines when hydrogen fuel cell energy is needed.
Absstract of: US2025385373A1
A housing for an electrical power storage battery includes a plate, onto which power elements of the battery are attached, and a bell cover covering the plate and means for mechanically attaching the bell cover onto the plate. The plate may include means for the electrical connection of the battery, means for the connection of communication means, and means for the thermal management of the electrical power elements.
Absstract of: US2025386159A1
The present disclosure discloses a NiMo-based nanomaterial earphone diaphragm sand a preparation method thereof. The diaphragm uses a paper base film as the basis, and a uniform distribution of a NiMo-based nanomaterial coating is formed on a surface of the base film by plasma modification and electrostatic spraying technology, forming a concentric ring structure and using the NiMo-based nanomaterial as connecting lines to enhance the stability and conductive performance of the overall structure. This design not only significantly improves the audio quality performance of the earphones, including clarity, detail restoration, and dynamic range, but also greatly improves the durability and environmental adaptability of the diaphragm. The present disclosure provides an innovative solution for high-end earphone manufacturing, and is especially suitable for music lovers who pursue the ultimate audio experience and professional audio fields.
Absstract of: US2025385343A1
A thermal insulator for a battery module including at least one nonwoven layer of intertwined fibers and an outer heat-shrunk polymeric layer, wherein the at least one nonwoven layer of intertwined fibers is compressed by the outer heat-shrunk layer.
Absstract of: US2025385366A1
A battery assembly includes: a plurality of battery cells arranged in a first direction; and a restraint member that restrains the plurality of battery cells in the first direction, wherein each of the plurality of battery cells has an electrode terminal on at least one side in a second direction orthogonal to the first direction, the restraint member includes a pair of members provided to sandwich the plurality of battery cells in the second direction, and the pair of members are provided to be separated from each other in the second direction.
Absstract of: WO2025256091A1
A battery and an electronic device. The battery comprises a cell and an FPC. No protection circuit is provided on the cell or the FPC. A first portion of the FPC is stacked on a top seal along the width direction of the cell, two second portions of the FPC are respectively formed by extending from two ends of the first portion, and second connection portions are respectively provided at extension ends of the second portions. One of the second connection portions is connected to a positive electrode trace within the FPC, and the positive electrode trace extends from the corresponding second connection portion and second portion to a position opposite to a positive electrode tab. The other one of the second connection portions is connected to a negative electrode trace within the FPC, and the negative electrode trace extends from the corresponding second connection portion and second portion to a position opposite to a negative electrode tab. At least one of the positive electrode tab and the negative electrode tab is provided in a quantity of at least two. In such a configuration, the positive electrode trace and the negative electrode trace within the FPC are both arranged in a unipolar manner, thereby avoiding the possibility of safety risks such as fire caused by continuous short circuits and reducing the link impedance of the FPC.
Absstract of: WO2025256088A1
Disclosed in the present application are a battery protection method, and a storage medium and a vehicle. The battery protection method comprises: acquiring the voltage of a battery; on the basis of the voltage of the battery and a set undervoltage threshold, determining whether the battery is in a pre-undervoltage state; if the battery is in the pre-undervoltage state, determining a pre-undervoltage level on the basis of the voltage of the battery and a plurality of preset undervoltage thresholds, and correspondingly limiting a discharge power of the battery; on the basis of the voltage of the battery and the change condition of the voltage of the battery within a preset duration, determining the state of the battery; and if the state of the battery is a preset pre-undervoltage state, maintaining the limitation on the discharge power of the battery.
Absstract of: WO2025256174A1
A battery cell, a battery device, an energy storage device, and an electric device. The battery comprises a casing, an electrode assembly, and an overcharge protection mechanism. The casing comprises a first wall, the electrode assembly is arranged in the casing, and the overcharge protection mechanism is arranged on the first wall. The electrode assembly comprises a gas-generating agent, and the gas-generating agent comprises at least one of carbonate, oxalate or chloride. The battery cell can effectively improve the reliability of the battery device.
Absstract of: WO2025256051A1
Embodiments of the present disclosure provide an end cover assembly, a battery cell, a battery, and an electrical device. The battery cell comprises a casing and an end cover assembly; the casing is provided with an accommodating cavity, and the side of the accommodating cavity in a first direction is open; the end cover assembly comprises a cover plate kit and a top support; the cover plate kit covers the open position of the accommodating cavity, the top support is arranged in the accommodating cavity; the cover plate kit is provided with an anti-explosion valve trigger area and a flow guide channel; at least part of the top support and the cover plate kit are spaced in the first direction to form a convergence space; the anti-explosion valve trigger area is communicated with the convergence space; the top support is provided with through exhaust holes, and the exhaust holes enable the convergence space to be communicated with the accommodating cavity; and air outlets of the flow guide channel are communicated with the convergence space, and air inlets of the flow guide channel are located in the accommodating cavity and spaced apart from the inner wall of the accommodating cavity.
Absstract of: US2025385326A1
A battery includes an enclosure having a longitudinal body section and a lateral body section extending from and normal to the longitudinal body section, where an intersection of the longitudinal body section and the lateral body section defines an interior corner. The battery also includes electrodes disposed within the enclosure. The battery also includes a battery management unit (BMU), where at least a portion of the BMU is disposed external to the enclosure and adjacent to the interior corner.
Absstract of: US2025385341A1
The present disclosure relates to an insulation sheet, and is directed to an insulation sheet improving heat propagation when heat propagation occurs within a battery module. The present disclosure provides an insulating sheet including two first layers, and a second layer located between the two first layers and including an insulation material, wherein at least one surface of the insulation sheet is formed with a bending portion.
Absstract of: US2025385340A1
The present disclosure relates to a heat insulating sheet for a rechargeable lithium battery, and a rechargeable lithium battery module including the heat insulating sheet. The heat insulating sheet for a rechargeable lithium battery includes a first base layer, an aerogel-containing layer, and a second base layer that are stacked together. The aerogel-containing layer includes a thermally conductive material-containing region, and a thermally conductive material is dispersed at high density in the thermally conductive material-containing region.
Absstract of: US2025385331A1
A method for recycling a waste lithium-ion secondary battery includes (a) loading an object to be heat-treated into a heat-treatment furnace, the object being at least a part of a waste lithium-ion secondary battery in which lithium iron phosphate powder is a positive electrode material, and including the positive electrode material, (b) increasing the temperature inside the heat-treatment furnace to a range of 200° C. to 400° C., (c) maintaining the increased temperature to heat treat the object to be heat-treated, and (d) discharging first powder produced after the completion of the heat treatment, wherein the first powder includes recycled lithium iron phosphate powder.
Absstract of: US2025385316A1
A positive active material for a nonaqueous electrolyte secondary battery is provided. The positive active material contains a lithium-transition metal composite oxide. The lithium-transition metal composite oxide has an α-NaFeO2-type crystal structure. The lithium-transition metal composite oxide is represented by the general formula Li1+αMe1−αO2 where 0<α, Me is a transition metal element containing Ni and Mn, or containing Ni, Mn, and Co, a molar ratio Mn/Me of Mn to Me meets Mn/Me≥0.45. The positive active material has a ratio a/b of 17≤a/b≤25 between a discharge capacity (a) from 4.35 V (vs. Li/Li+) to 3.0 V (vs. Li/Li+) and a discharge capacity (b) from 3.0 V (vs. Li/Li+) to 2.0 V (vs. Li/Li+).
Absstract of: US2025385348A1
A battery includes an electrode assembly, a case including a bottom portion, a sidewall portion connected to the bottom portion and including a seating portion at one end thereof, and an upper opening opposite to the bottom portion, the case accommodating the electrode assembly, and a cap assembly that is coupled to the seating portion of the case, wherein the cap assembly includes at least one first engagement portion for coupling with the case, the case includes at least one second engagement portion respectively corresponding to the at least one first engagement portion, the seating portion including the at least one second engagement portion, and the at least one first engagement portion and the at least one second engagement portion are coupled to restrict movement of the cap assembly in an upward direction.
Absstract of: US2025385347A1
A grid-like pattern sealing device for sealing an electrode assembly by applying pressure to a pouch of a pouch-type battery according to an embodiment includes: a first sealing tool including a first pressure surface that is in close contact with a first sheet of the pouch; and a second sealing tool including a second pressure surface that is in close contact with a second sheet of the pouch, wherein the first pressure surface has a plurality of first convex portions, a plurality of second convex portions, and a plurality of first concave portions formed between the plurality of first convex portions and the plurality of second convex portions, the second pressure surface has a plurality of third convex portions, a plurality of fourth convex portions, and a plurality of second concave portions formed between the plurality of third convex portions and the plurality of fourth convex portions.
Absstract of: US2025385238A1
An insulation-coating overlay control system, an electrode plate for a secondary battery, and an insulation-coating overlay control method are provided. The system includes an insulation coater configured to coat an insulating material to allow the insulating material to cover a partial region of a coated part and a non-coated part in an electrode plate along a boundary part. The coated part has an electrode slurry coated thereon and the non-coated part does not have the electrode slurry coated thereon. An insulation-coating width measuring means is configured to measure an overlay width. An insulation coater moving means is configured to move the insulation coater and a controller is configured to control the insulation coater moving means to adjust the overlay width by comparing the measured overlay width with a predetermined overlay width setting range or an overlay width reference value.
Absstract of: US2025385349A1
The disclosure relates to a protective cover for protecting a battery cell top surface of a battery cell, comprising a main protective wall and a side wall protruding downwardly from the main protective wall and extending around an outer perimeter of the main protective wall such that an inner surface of the side wall and the bottom surface of the main protective wall defines a space with a height corresponding to a height of the side wall. The disclosure also relates to a cover assembly, a battery cell assembly, and a vehicle.
Absstract of: WO2025256082A1
The present invention relates to an immersion coolant for an energy storage battery and an energy storage battery device. Said coolant comprises water, an insulating oil and a demulsifier, water and the insulating oil being immiscible with each other, and the density of the insulating oil being lower than the density of water. The coolant can form a structure consisting of, from bottom to top, a water layer, a demulsifier layer and an insulating oil layer. During use, the demulsifier layer and the insulating oil layer are on the water layer, thereby suppressing water volatilization and preventing short circuits caused by contact of water with components susceptible to water, such as positive and negative electrodes of the battery, and ensuring battery safety. In addition, since the water layer at the bottom has a relatively large specific heat capacity, temperature increases of the energy storage battery can be effectively reduced, thereby achieving a better temperature control effect. Moreover, adding the demulsifier can further prevent the insulating oil from being dissolved in water when being heated, so that the interfacial stability of the insulating oil layer and the water layer is improved, and the stability of the structure consisting of the water layer, the demulsifier layer and the insulating oil layer is maintained, thereby further ensuring the battery 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.
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: US2025385266A1
A silicon composite material and a preparation method therefor, a negative electrode sheet, a secondary battery, and an electrical apparatus. The silicon composite material comprises a one-dimensional conductive material, an inner core, and a coating layer, the outer surface of the inner core is coated with the coating layer, the one-dimensional conductive material is arranged on the outer surface of the coating layer, and the inner core comprises a silicon-based material. The silicon composite material has good cycle performance and fast charging performance.
Absstract of: US2025385270A1
A secondary battery, includes a cathode layer, a anode layer and an insulating layer. The insulating layer is located between the cathode layer and the anode layer; the thickness of the cathode layer is about 10 mm to about 1000 mm, and the thickness of the anode layer is about 5 mm to about 1000 mm; and the cathode layer includes a cathode current collector and a cathode material, the anode layer includes a anode current collector and a anode material, each of the cathode current collector and the anode current collector is of a three-dimensional porous structure, the absolute value of the difference between the thickness of the cathode current collector and the thickness of the cathode layer is less than about 5 mm, and the absolute value of the difference between the thickness of the anode current collector and the thickness of the anode layer is less than about 2 mm.
Absstract of: US2025385269A1
A lithium secondary battery according to embodiments of the present disclosure includes a cathode including a cathode active material and an anode including an anode active material. A ratio of a median particle diameter of the cathode active material to that of the anode active material may be adjusted within a predetermined range. In addition, a ratio of a span value of the cathode active material to that of the anode active material may be adjusted within a predetermined range.
Absstract of: US2025385244A1
A layered-oxide positive electrode active material may have a molecular formula of NaxMnaFebNicMdNeO2-δQf, where a doping element M is selected from at least one of Cu, Li, Ti, Zr, K, Sb, Nb, Mg, Ca, Mo, Zn, Cr, W, Bi, Sn, Ge, or Al, a doping element N is selected from at least one of Si, P, B, S, or Se, a doping element Q is selected from at least one of F, Cl, or N, 0.66≤x≤1, 0
Absstract of: US2025385267A1
The present application provides a battery cell, a battery, and an electrical apparatus; the battery cell comprises an electrode assembly and an electrolyte; the electrode assembly comprises a first electrode plate, a second electrode plate, and a separator; the polarities of the first electrode plate and the second electrode plate are opposite; the separator is arranged between the first electrode plate and the second electrode plate; at least one of the first electrode plate, the second electrode plate, and the separator comprises a lyophilic polymer; and the battery cell satisfies the following formula (I):0.01%≤yM-M′≤15%.(I)
Absstract of: WO2025255997A1
A secondary battery and an electric device. The secondary battery comprises a positive electrode sheet; the positive electrode sheet comprises a positive electrode current collector and a positive electrode active material layer provided on at least one side of the positive electrode current collector; the positive electrode active material layer comprises a positive electrode active material; the positive electrode active material comprises a lithium-containing transition metal oxide; a particle of the lithium-containing transition metal oxide comprises an inner region and a surface layer region at least partially surrounding the inner region; the surface layer region comprises a first surface layer region and a second surface layer region; the second surface layer region is located between the first surface layer region and the inner region; the first surface layer region and the second surface layer region each comprise a first phase structure and a second phase structure; the first phase structure comprises a layered phase structure; the second phase structure comprises at least one of a spinel phase structure and a rock salt phase structure; the first surface layer region comprises a rock salt phase structure and a layered phase structure; and the second surface layer region comprises a spinel phase structure and a layered phase structure. The secondary battery has excellent cycle performance.
Absstract of: WO2025256122A1
The present application provides a battery thermal management system and method, an electronic device, and a storage medium. The system comprises an air conditioning refrigeration loop, a battery liquid cooling loop, and an external pipe. The battery liquid cooling loop comprises a battery pack, a heat exchanger, and a control valve; the control valve is configured to control the battery liquid cooling loop to be connected to or disconnected from the air conditioning refrigeration loop or the external pipe; and the heat exchanger is configured to implement heat energy exchange between the battery liquid cooling loop and the air conditioning refrigeration loop when the battery liquid cooling loop is connected to the air conditioning refrigeration loop. The external pipe is connected to an external device, wherein when the battery liquid cooling loop is connected to the external pipe, the external device is configured to cool the battery pack. In the present application, the external device can be directly used to cool the battery pack, enhancing the heat dissipation performance of batteries in super charging and fast charging situations.
Absstract of: WO2025256120A1
An electrolyte and a battery comprising same. The electrolyte comprises a solvent, an electrolyte, and an additive. The additive comprises a film-forming additive and a polyether-modified polysiloxane. The polyether modified polysiloxane has a structure represented by formula I. In formula I, R1, R2 and R3 are each independently selected from C1-C6 hydrocarbyl or C6-C10 aryl, 1<m<4, 0<n<4, and 0<k<4. In the electrolyte, the film-forming additive and the polyether-modified polysiloxane are used in combination, which helps to form a thinner and denser high-quality SEI film with good flexibility while effectively improving the wettability of the electrolyte; therefore, the internal impedance of a battery can be effectively reduced, and the battery is allowed to have good cycling performance and storage performance under high-temperature conditions.
Absstract of: US2025385322A1
The present application discloses a current collector, a preparation method thereof, an electrode plate, a battery, and an electrical apparatus. The current collector comprises a densified carbon nanotube film layer and a metal layer bonded to a surface of the densified carbon nanotube film layer. Compared to a commercial metal foil, the current collector provided in the present application has a weight which is 15% to 19% of a weight of a commercial metal foil and has a thickness which is 24% to 32% of a thickness of the commercial metal foil; while exhibiting similar electrical conductivity, electrochemical stability, and obviously higher mechanical strength and flexibility; and a battery using the current collector achieve increases in gravimetric energy density and volumetric energy density by 10.2% to 25.7% and 5.1% to 11.45%, respectively.
Absstract of: US2025385295A1
The present invention provides a pressurization device for a secondary battery that can be used multiple times. As one embodiment, as a device for pressurizing an electrode unit in which an electrolyte is stacked between electrode plates, disclosed is a pressurization device for a secondary battery, comprising: a die having a cavity accommodating the electrode unit; a sealing container having an opening and accommodating the die in an inner space; and a sealing cover engaged with the opening of the sealing container and sealing the electrode unit with the sealing container, wherein the sealing cover under the sealing container is composed of an elastic member
Absstract of: US2025385293A1
The present invention relates to a secondary battery in which an electrode tab is improved in mechanical strength and a method for manufacturing the same. Also, the secondary battery according to the present invention includes: an electrode provided with a coating portion coated with an active material on an electrode collector and a non-coating portion on which the active material is not applied to the electrode collector in a longitudinal direction of the electrode collector and a notching tab part extending from the coating portion in a width direction of the electrode collector without coating with the active material and overlapping each other to form two or more layers when the electrode is wound.
Absstract of: US2025385330A1
A method for recycling a waste lithium-ion secondary battery includes (a) loading an object to be heat-treated, which is at least a part of a waste lithium-ion secondary battery including a positive electrode material, into a heat-treatment furnace, (b) increasing the temperature inside the heat-treatment furnace to a range of 200° C. to 400° C., (c) maintaining the increased temperature, and (d) discharging first powder produced after the completion of the heat treatment of the waste lithium-ion secondary battery, wherein the first powder includes valuable metal powder containing a valuable metal composition of the positive electrode material.
Absstract of: US2025385297A1
This present disclosure is directed to electrolyte compositions for Li-ion batteries, the preparation of said batteries, and uses thereof. Examples of electrolyte compositions disclosed herein allow for Li-ion battery use in extreme operating conditions over a wide temperature range, allowing for efficient use at both high and low temperatures.
Absstract of: US2025385243A1
A positive electrode includes a positive electrode current collector and a positive electrode active material layer. The positive electrode current collector extends in both a longitudinal direction and a width direction. The positive electrode active material layer includes a positive electrode active material and a positive electrode binder and is stacked on the positive electrode current collector. The positive electrode active material layer includes a first thin part and a first thick part. The first thick part has a thickness greater than a thickness of the first thin part and is adjacent to the first thin part in the longitudinal direction. A ratio of an abundance of the positive electrode binder to an abundance of the positive electrode active material in the first thin part is lower than that in the first thick part.
Absstract of: US2025385259A1
An energy storage device according to an aspect of the present invention includes an electrode assembly in which a positive electrode including a positive active material layer and a negative electrode including a negative active material layer are stacked with each other with a separator interposed therebetween, in which the positive active material layer contains a positive active material particle, and the positive active material particle has an internal porosity of 15% or less, and the negative active material layer contains a graphite particle, and the graphite particle has an internal porosity of 2% or less.
Absstract of: US2025385255A1
An electrochemical apparatus includes a positive active material layer and a negative active material layer, where the positive active material layer includes a positive active material, and the negative active material layer includes a negative active material. The electrochemical apparatus satisfies the formulas: 0.5≤(U0−U)/(1.06−CB)≤1.5; and CB=(A′×B′×C′)/(A×B×C); by controlling the relationship among the charge cut-off voltage U volt of the electrochemical apparatus, the Full-charge Voltage U0 volt of the battery, and the ratio CB of the negative electrode discharge capacity per unit area to the positive electrode discharge capacity per unit area, 0.5≤(U0−U)/(1.06−CB)≤1.5, the high-temperature performance of the electrochemical apparatus can be improved while a lithium plating window can be improved, thereby improving kinetic performance of the battery.
Absstract of: US2025385239A1
Disclosed are a secondary battery and a preparation method thereof, including a preparation method for a negative electrode plate, the preparation method for the negative electrode plate includes: mixing a negative electrode active material, a conductive agent, and a binder uniformly in a solvent to form a slurry for a negative electrode active material layer; coating the slurry for the negative electrode active material layer on at least one surface of a negative electrode current collector to obtain a negative electrode plate to be calendered, which includes a negative electrode film formed by the slurry for the negative electrode active material layer; after calendering, forming the negative electrode plate, manufacturing a test cell using the negative electrode plate; manufacturing the secondary battery by combining the negative electrode plate, a positive electrode plate, a separator and an electrolyte solution; the secondary battery satisfies a relational formula: 0.9≤U×(1+r)/(ρ+7.4)/d/(1+5.3×ln(t))/1.335≤1.1.
Absstract of: WO2025255935A1
The present invention relates to the technical field of batteries, and in particular relates to a battery cell, a battery, and a preparation method for the battery cell. The battery cell comprises electrode sheets, wherein each electrode sheet comprises a current collector, which comprises a first wall surface; the first wall surface comprises a first coating area, a second coating area and a first non-coating area, the first non-coating area being arranged between the first coating area and the second coating area; and the current collector is bent at the first non-coating area. The battery comprises the battery cell. The preparation method for the battery cell comprises the following steps: providing several first non-coating areas on an electrode sheet; performing die-cutting on the electrode sheet to form several sub-electrode sheets, each sub-electrode sheet comprising a first non-coating area; stacking the sub-electrode sheets in the direction of thickness to form a stacked core, the first non-coating areas on each sub-electrode sheet being arranged opposite each other in the direction of thickness of the stacked core; bending the stacked core at the first non-coating areas; and performing post-processing on the bent stacked core to obtain the battery cell. By means of the battery cell and the battery, the internal space of a battery compartment can be effectively utilized.
Absstract of: WO2025255939A1
Provided in the embodiments of the present disclosure are a battery grouping device, a production line, and a battery grouping method. The battery grouping device comprises a first conveying module, a grouping module, a second conveying module and a pressurizing module. The first conveying module is configured to convey a plurality of battery cells. The grouping module comprises a grouping platform, a pressing mechanism and a feeding mechanism. The feeding mechanism comprises a first driving member and a feeding member. The feeding mechanism pushes the battery cells on the first conveying module to the grouping platform, and the pressing mechanism is capable of selectively pressing the battery cells located on the grouping platform. The feeding mechanism is capable of pushing the battery cells on the grouping platform to the second conveying module to be combined into a battery pack, and small surfaces of adjacent battery cells in the battery pack are in contact with each other. The pressurizing module comprises a pressurizing mechanism. The second conveying module is configured to convey the battery pack to the pressurizing module. The pressurizing mechanism is configured to pressurize the battery pack in a first direction.
Absstract of: WO2025255927A1
The present application provides a battery cell, a battery and an electrical device. The battery cell comprises a casing, an electrode terminal, an electrode assembly, and a current collecting member. The electrode terminal is provided on the casing. The electrode assembly is accommodated in the casing, and the end of the electrode assembly facing the electrode terminal is provided with a first tab. The current collecting member is accommodated in the casing and disposed on the side of the first tab facing the electrode terminal; the current collecting member comprises a first current collecting portion and a second current collecting portion connected to the first current collecting portion; the first current collecting portion is welded to the electrode terminal; the second current collecting portion is connected to the tab; and the thickness of the first current collecting portion is greater than that of the second current collecting portion.
Absstract of: US2025385301A1
Described herein is a chalcogen-halide solid electrolyte material represented by the following chemical formula: LiAxEyGz, or NaAxEyGz. In embodiments, A denotes one or more elements selected from the group consisting of magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), Lanthanum (La), cerium (Ce), samarium (Sm), and boron (B). In embodiments, E denotes one or more chalcogen elements. In embodiments, G denotes one or more halide elements. In embodiments, the following mathematical formula is satisfied: 0
Absstract of: US2025385292A1
The present invention relates to a secondary battery in which an electrode tab is improved in mechanical strength and a method for manufacturing the same. Also, the secondary battery according to the present invention includes: an electrode provided with a coating portion coated with an active material on an electrode collector and a non-coating portion on which the active material is not applied to the electrode collector in a longitudinal direction of the electrode collector and a notching tab part extending from the coating portion in a width direction of the electrode collector without coating with the active material and overlapping each other to form two or more layers when the electrode is wound.
Absstract of: US2025385294A1
The present disclosure discloses an electrode assembly structure that facilitates impregnation of electrolyte and discharge of gas, and reduces the risk of fire due to short circuit. The electrode assembly structure according to one aspect of the present disclosure includes a first electrode assembly wound around a winding axis, and a second electrode assembly wound around the winding axis, adjacent to the first electrode assembly, and located outer than the first electrode assembly in a radial direction.
Absstract of: US2025385308A1
Provided are an electrolyte solution for a rechargeable lithium battery and a rechargeable lithium battery including the same, wherein the electrolyte solution includes a non-aqueous organic solvent, a lithium salt, a first additive represented by Formula 1 above, and a second additive represented by Formula 2 above.
Absstract of: US2025385321A1
This application provides an electrolyte, a secondary battery, and an electric apparatus. The electrolyte includes a cyclic sulfate compound represented by Formula I and a metal ion additive. The cyclic sulfate compound and the metal ion additive contribute to the formation of a stable SEI film, thereby facilitating an improvement in the rate performance of the battery.
Absstract of: US2025385291A1
Embodiments of the present disclosure relate to an electrode plate notching device capable of automatically correcting a bias of a press pressure transmitted to a mold during a notching process of an electrode plate, thereby preventing or reducing molding errors. An electrode plate notching device includes a lower press, a first mold seated on the lower press and including a punch hole, a second mold movable up and down above the first mold and including a punch, an upper press arranged above the second mold and movable vertically, and a correction unit connecting the upper press to the second mold and capable of multi-axis alignment.
Absstract of: US2025385254A1
There is provided a positive electrode active material comprising (a) a first component comprising lithium transition metal oxide spinel particles; (b) a second oxide component selected from oxides of Sr, Y, Zr, Nb, La and W, and mixtures thereof; wherein the positive electrode active material is (i) particles comprising one or more single crystals of the first component, wherein the arithmetic mean value of the minimum Feret diameter of the particles measured using scanning electron microscopy is no greater than 3 μm,wherein the second oxide component is disposed at least partly on the surface of the particles; and/or(ii) secondary particles comprising agglomerated single crystal particles of the first component, wherein the second oxide component is dispersed through the secondary particles on the surface of the single crystal particles at the interfaces between the single crystal particles.
Absstract of: US2025385250A1
Provided is an all-solid-state lithium batteries (ASSLBs), Li-based cathode materials and structures incorporated therein and to methods of producing said materials, structures and batteries.
Absstract of: US2025385268A1
A cathode current collector for a lithium secondary battery according to embodiments of the present invention may include a first metal layer which includes a first region and a second region having a thickness smaller than that of the first region, and a second metal layer disposed on the second region of the first metal layer and having a different composition from the first metal layer. Accordingly, when the cathode current collector is coupled with a cathode tab, etc., heat generation due to a difference in resistance at the coupled portion may be prevented.
Absstract of: US2025385251A1
Disclosed are negative electrodes and rechargeable lithium batteries. The negative electrode includes a negative electrode current collector, and a negative electrode active material layer on the negative electrode current collector. The negative electrode active material layer includes a first negative electrode active material that includes a silicon-carbon composite, a second negative electrode active material that includes a first carbon-based material having a degree of divergence (DD) value that is equal to or greater than about 15, a binder, and a conductive material that includes a second carbon-based material having a one-dimensional nano-structure.
Absstract of: US2025385257A1
A non-aqueous electrolyte secondary battery according to one embodiment of the present invention comprises: a positive electrode containing a positive electrode active substance; a negative electrode; and a non-aqueous electrolyte. The positive electrode active substance comprises a lithium transition metal compound oxide containing at least Ni. The lithium transition metal compound oxide is secondary particles formed by aggregation of primary particles, and the primary particles present on the surface of the secondary particles have a crystal structure that includes a rock salt structure, a spinel structure, and a layered rock salt structure formed in order from the particle surface.
Absstract of: WO2025255929A1
A current collector preparation device (100), a current collector preparation method, and a battery cell production line (1000). The current collector preparation device (100) comprises an unwinding mechanism (10), a winding mechanism (20), and coating mechanisms (30); the unwinding mechanism (10) is configured to unwind a base film (200) of a current collector (300); the winding mechanism (20) is arranged downstream of the unwinding mechanism (10) and is configured to wind the prepared current collector (300); the coating mechanisms (30) are arranged between the unwinding mechanism (10) and the winding mechanism (20), and each coating mechanism (30) comprises a plurality of coating assemblies (301); and the plurality of coating assemblies (301) are arranged in a transporting direction of the base film (200) and are respectively configured to release different substances onto the base film (200) to form a plurality of film layers on the surface of the base film (200), and substance release areas of at least two coating assemblies (301) partially overlap.
Absstract of: WO2025256052A1
The present application relates to a drying system and a battery production apparatus. The drying system comprises a turntable, a plurality of drying boxes and a first transfer member. The plurality of drying boxes are arranged at intervals in the rotation direction of the turntable, and are used for drying battery cells. The first transfer member is arranged on the turntable, and is at least used for driving the battery cells into and out of the drying boxes. Embodiments of the present utility model provide a drying system and a battery production apparatus, which can reduce the floor space of the drying system, thereby improving the overall space utilization rate of the system and the battery production efficiency.
Absstract of: WO2025256041A1
The present application is applicable to the technical field of batteries (100), and provides a battery (100) and an electrical apparatus. The battery (100) comprises an electrode assembly (10), a case assembly (30), and fire extinguishing structures (40); the electrode assembly (10) is arranged in the case assembly (30); the case assembly (30) is provided with a first weak structure (31), and at least one fire extinguishing structure (40) is arranged at the first weak structure (31); and/or the electrode assembly (10) is provided with a second weak structure (11), and at least one fire extinguishing structure (40) is arranged at the second weak structure (11). By providing the fire extinguishing structure (40) at the first weak structure (31), a cooling and fire extinguishing operation can be performed at the first weak structure (31). By providing the fire extinguishing structure (45) at the second weak structure (11), a cooling and fire extinguishing operation can be performed at the second weak structure (11). In this way, the thermal runaway reaction and thermal propagation of a battery cell (100a) can be improved, thereby improving the reliability of the battery (100).
Absstract of: US2025385241A1
A method for manufacturing an electrode includes feeding an electrode mixture to a first conveyor belt. The electrode mixture includes electrode active materials, conductive carbons and polymeric binders. The first conveyor belt moves the electrode mixture film along a first belt-moving direction. The method further includes transferring the electrode mixture film from the first conveyor belt to a second conveyor belt. The second conveyor belt moves the electrode mixture film along a second longitudinal direction. The first belt-moving direction is oblique angled relative to the second longitudinal direction. The side rollers on the second conveyor fold the electrode mixture film at a certain angle with the support of a pair of guide rollers. The method includes hot pressing the electrode mixture film using at least one hot roller to fiberize the PTFE binder along the second belt-moving direction.
Absstract of: US2025385265A1
A conductive-material-dispersed solution, according to one implementation, comprises a conductive material, a dispersant and a dispersion medium, wherein the conductive material comprises single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs), and the solid content of the conductive-material-dispersed solution is 1.5 wt % or greater. According to the one implementation, the provided conductive-material-dispersed solution has the conductive material pre-dispersed therein to an excellent level such that, when added to an anode slurry composition, dispersibility and the like of the conductive material are effectively improved, and inhibits aggregation between constituent elements in the anode slurry such that high solid content characteristics and the like in a slurry can be ensured.
Absstract of: US2025385252A1
A positive electrode plate includes a current collector, a conductive coating, a first active material layer and a second active material layer, where the conductive coating is formed on a surface of the current collector, the first active material layer is formed on a surface of the conductive coating, and the second active material layer is formed on a surface of the first active material layer; the first active material layer includes a first active material; the second active material layer includes a second active material; the first active material does not catch fire in a nail penetration test; and the second active material has a gram capacity greater than or equal to 165 mAh/g.
Absstract of: US2025385263A1
The present invention relates to an all solid-state battery comprising: a negative electrode; an electrolyte layer; and a positive electrode including a positive electrode layer and a current collector supporting the positive electrode layer, wherein the positive layer includes a first area adjacent to the electrolyte layer and a second area adjacent to the positive electrode current collector, the first area includes first solid-state electrolyte particles, the second area includes second solid-state electrolyte particles, and an average particle size of the first solid-state electrolyte particles is greater than that of the second solid-state electrolyte particles.
Absstract of: US2025385264A1
A negative electrode including a negative electrode active material layer, wherein the negative electrode active material layer includes a negative electrode active material and a binder, wherein the binder includes a) an acryl-containing polymer including a monomer mixture containing a (meth)acrylamide group-containing monomer, an unsaturated carboxylic acid-containing monomer, and a monomer having a solubility in water of 100 g/L or less; and b) cellulose nanofibers, and a secondary battery.
Absstract of: US2025385256A1
Provided is a positive electrode active material for a non-aqueous electrolyte secondary battery that can improve the capacity and durability of the non-aqueous electrolyte secondary battery. The positive electrode active material contained in a non-aqueous electrolyte secondary battery comprises a lithium transition metal composite oxide containing at least 70 mol % of Ni and Mn with respect to the total molar amount of metal elements other than Li, the lithium transition metal composite oxide is composed of single particles, the average particle size of the single particles is 0.65 μm-4 μm, and the crystallite size of the single particles is 380 Å-750 Å.
Absstract of: US2025385262A1
The present application relates to a silicon-carbon composite material and a preparation method therefor, a negative electrode sheet, a secondary battery, and an electrical device. The silicon-carbon composite material comprises a porous carbon matrix and a silicon-based material layer located in pores of the porous carbon matrix, the silicon-based material layer comprises a sub-nano silicon cluster and a sub-nano silicon carbide cluster, and the surface of the sub-nano silicon carbide cluster is in contact with the surface of the sub-nano silicon cluster. The silicon-carbon composite material has small expansibility, good cycle performance and fast charging performance and high energy density.
Absstract of: US2025385300A1
A high energy density rechargeable metal-ion battery includes an anode energy layer, a cathode energy layer, a separator for separating the anode and the cathode energy layers, an anode current collector for transferring electrons to and from the anode energy layer, the battery characterized by a maximum safe voltage for avoiding overcharge, and an interrupt layer that interrupts current within the battery upon exposure to voltage in excess of the maximum safe voltage. The interrupt layer is between the anode energy layer and current collector. When unactivated, it is laminated to the cathode current collector, conducting current therethrough. When activated, the interrupt layer delaminates from the anode current collector, interrupting current therethrough. The interrupt layer includes a voltage sensitive decomposable component that upon exposure to voltage in excess of the maximum safe voltage decomposes, evolving a gas, delaminating the interrupt layer from the anode current collector, interrupting current therethrough.
Absstract of: US2025385289A1
A battery formation device comprises a formation three-dimensional storage and further comprises a battery placing manipulator, a battery taking manipulator, a button cup taking manipulator, a capsule conveying circulating drawstring, a first capsule transfer conveying line and a first capsule conveying drawstring. The battery placing manipulator, the battery taking manipulator and the button cup taking manipulator are all arranged on a formation frame, and are all capable of moving forth and back relative to the formation frame, the battery placing manipulator and the battery taking manipulator are arranged side by side left and right, the button cup taking manipulator is located behind the battery placing manipulator and the battery taking manipulator, the capsule conveying circulating drawstring penetrates through the formation frame and is located below the button cup taking t manipulator, and the formation three-dimensional storage is arranged behind the formation frame.
Absstract of: WO2025258993A1
The technical idea of the present invention comprises: a base frame; a first cell assembly provided on the main surface of the base frame and including a plurality of first battery cells stacked in the vertical direction perpendicular to the main surface of the base frame and a first sidewall attached to the plurality of first battery cells; and a second cell assembly provided on the main surface of the base frame and including a plurality of second battery cells stacked in the vertical direction, wherein the first sidewall includes a venting adjustment portion configured to adjust a venting direction of gas discharged from the plurality of second battery cells, and the venting adjustment portion includes inclined surfaces provided on a surface of the first sidewall facing the plurality of second battery cells and inclined with respect to the vertical direction.
Absstract of: WO2025258981A1
The present invention relates to: a gel polymer electrolyte-separator composite for an electrochemical device; and an electrochemical device comprising same. According to the present invention, provided are: a gel polymer electrolyte-separator composite for an electrochemical device, the gel polymer electrolyte-separator composite being capable of preventing the occurrence of internal short circuits caused by the growth of lithium dendrites; and an electrochemical device comprising same.
Absstract of: WO2025258913A1
The technical idea of the present invention provides a coating apparatus comprising: a coating die including a manifold accommodating a first coating solution and a die lip having a discharge port for discharging the first coating solution; and a coating shim disposed in the coating die, wherein the coating shim includes: a body shim including a center body and a first side body, the center body being spaced apart from the die lip with the manifold therebetween, and the first side body extending from the center body toward the die lip and not overlapping the manifold; and a first spacer shim extending between the center body and the die lip, the first spacer shim including an inner portion overlapping the manifold and an outer portion disposed between the manifold and the first side body.
Absstract of: WO2025258448A1
The present disclosure provides: an adhesive for a power storage device packaging material, the adhesive exhibiting, even at a low coating amount, high impact resistance after molding and after a wet heat resistance test that is harsher than in the past; a packaging material for a power storage device, the packaging exhibiting excellent impact resistance; a container for a power storage device; and a power storage device. The adhesive for a power storage device packaging material according to the present disclosure is constituted from at least a polyester polyol (A) and a polyisocyanate (B). The polyester polyol (A) contains 10-60 mol% of constituent units derived from a polyhydric alcohol (a1) having a melting point of 10-50ºC. In a cured product, the storage elastic modulus at 25°C (Er25 MPa) and the storage elastic modulus at 60°C (Er60 MPa) satisfy conditions (i) and (ii). Condition (i): Er60 is 50-1000 MPa. Condition (ii): Er25 and Er60 satisfy the relationship 1≤(Er25-Er60)/Er60≤7.
Absstract of: WO2025256040A1
The present application applies to the technical field of batteries (100). Provided are a battery (100) and an electric device, which comprises the battery (100), the battery (100) comprising battery cells (10) and a fire extinguishing structure (30), wherein each battery cell (10) comprises a casing assembly (12), the casing assembly (12) being provided with a weakened structure (123); and the fire extinguishing structure (30) is arranged opposite the weakened structure (123). The casing assembly (12) comprises a first wall (1221) and a pressure-relief mechanism (123a) connected to the first wall (1221), wherein the weakened structure (123) includes the pressure-relief mechanism (123a); and/or the casing assembly (12) is provided with a weld seam (123b), wherein the weakened structure (123) includes the weld seam (123b). The fire extinguishing structure (30) being spaced apart from and opposite the weakened structure (123) enables the fire extinguishing structure (30) to reduce the temperature of a high-temperature and high-pressure gas generated during thermal runaway of the battery cells (10). In this way, thermal runaway of the entire battery (100) can be mitigated, thereby improving the reliability of the battery (100).
Absstract of: WO2025255978A1
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 portion is connected between the first side wall and the second side wall, the first arc-shaped portion is arranged opposite an edge of the electrode assembly, and at least part of the first arc-shaped portion is provided with a first clearance groove for providing clearance for the corresponding edge of the electrode assembly.
Absstract of: WO2025255940A1
A battery (100), an electric device, and an energy storage device. The battery (100) comprises: a case (10), which is provided with a frame (101) defining an accommodating space, wherein at least one battery cell (110) is placed in the accommodating space; and a mounting member (104), which is located outside the accommodating space and connected to the frame (101). The mounting member (104) comprises a first mounting plate (11) and a second mounting plate (12) connected to each other, wherein the first mounting plate (11) is located below the second mounting plate (12) in the direction of gravity, and the first mounting plate (11) comprises a first plate section (111) connected to a lower part of the frame (101), a second plate section (112) connected to a side surface of the frame (101) and a third plate section (113) connected to the second mounting plate (12), the first plate section (111), the second plate section (112) and the third plate section (113) being connected in sequence. The battery has a relatively high mounting strength, structural rigidity and structural strength; and the electric device and the energy storage device have a relatively high use reliability.
Absstract of: US2025382177A1
In one aspect, a sheet shaped ferric phosphate with a high iron-to-phosphorus ratio has a sheet shaped structure with an iron-to-phosphorus (Fe/P) ratio greater than 0.99, a ratio of length to width to thickness of the sheet shaped structure is (105 to 130):(90 to 100):(10 to 12), 3.5 m2/g≤a specific surface area of the sheet shaped structure≤6.5 m2/g, and a particle size of the sheet shaped structure<35 μm.
Absstract of: US2025382184A1
The application provides a negative electrode active material and a preparation method thereof, wherein the negative electrode active material comprises: porous core, comprising a base material and a boron-containing substance dispersed in the base material, wherein the base material comprises silicon and MSiO3, where M represents metal; pores of the porous core are filled with a silicon compound, and the silicon compound does not fully fill the pore. The negative electrode active material and the preparation method thereof have good material stability while ensuring high gram capacity and initial charge-discharge efficiency, and the lithium-ion battery made of it as a negative electrode has excellent fast charge and cycle characteristics, and may also reduce the expansion of the battery during the cycle.
Absstract of: US2025381719A1
An object of the present invention is to provide a biaxially stretched polyamide film which is superior in bending pinhole resistance and abrasion pinhole resistance, and can inhibit generation of foreign matter during film formation. A biaxially stretched polyamide film of the present invention includes at least two layers of A layer and B layer each formed of a resin composition including polyamide 6, wherein the A layer contains a flexing agent and the B layer is substantially free of any flexing agent, and the biaxially stretched polyamide film exhibits a loss elastic modulus E″ of 1.1×108 Pa or more at 1° C. in dynamic viscoelasticity measurement under conditions including a tensile mode, a distance between chucks of 20 mm, a frequency of 15 Hz, and a rate of raising temperature of 5° C./min using a viscoelasticity analyzer.
Absstract of: US2025381878A1
A charging system includes: an information input unit that acquires device-to-be-charged information that is information on devices-to-be-charged connected to charging ports; a unit-allocating unit that allocates a power conversion unit to each charging port corresponding to each device-to-be-charged such that the power conversion unit is allocated in high priority to the device-to-be-charged with a high priority level based on the devices-to-be-charged information; and a switching control unit that controls a switch unit, based on a result of the allocation by the unit-allocating unit.
Absstract of: US2025382165A1
A transport apparatus comprises: a vehicle body; and a handling module which is provided on the vehicle body and comprises a base, an insertion arm extendably/retractably provided on the base, and a limiting member, the insertion arm having, in its own extension/retraction direction, a connection section and an insertion and pickup section which are opposite to each other, the connection section being extendably/retractably connected to the base, the insertion and pickup section being located at the front end of the extension direction of the connection section, and the limiting member being provided on the surface of the insertion arm facing away from the base, wherein the limiting member is located between the connection section and the insertion and pickup section, and a bearing space for placing a material is defined between the limiting member and the insertion and pickup section.
Absstract of: US2025385290A1
According to the present disclosure, provided is a manufacturing apparatus of a battery cell including an electrode assembly accommodation portion accommodating an electrode assembly, and a sealing portion sealing a perimeter of the electrode assembly accommodation portion, the sealing portion including a protrusion portion further protruding than a non-sealed surface not sealed in the electrode assembly accommodation portion, the manufacturing apparatus including: a pair of fixing blocks configured to pressurize and fix the sealing portion in a first direction, perpendicular to one surface of the sealing portion; and a folding block configured to fold the protrusion portion further protruding in a second direction, perpendicular to the first direction, further than the non-sealed surface, and the folding block may include a pressurizing portion formed to be perpendicular to the second direction, and an inclination portion extending from the pressurizing portion and forming an inclination with respect to the pressurizing portion.
Absstract of: US2025385372A1
Discussed is a modular battery pack including a base pack having two or more cylindrical battery cells connected to each other in series, the base pack having a cuboidal shape, and at least one add-on pack having two or more cylindrical battery cells connected to each other in series, the add-on pack having a cuboidal shape. The two or more cylindrical battery cells are disposed side by side in parallel in each of the base pack and the add-on pack, the base pack and the add-on pack are disposed such that side surfaces of the two or more cylindrical battery cells face each other, and the base pack and the add-on pack are connected to each other in parallel. Accordingly, add-on packs may be connected to the base pack in parallel without limit to number to allow easy and simple increase in a capacity of the modular battery pack.
Absstract of: US2025385359A1
A battery module and a battery pack are provided. The battery module includes two end plate assemblies spaced apart in a first direction and a middle plate connected between the two end plate assemblies. The middle plate includes a partition portion and a connection portion distributed in a straight line in the first direction and in a same plane. The middle plate is inserted into and fitted with the corresponding end plate assembly at least through the connection portion. At least one side plate surface of the partition portion has a light shielding structure protruding from a plate surface of the connection portion. The light shielding structure is arranged on at least one side plate surface of the partition portion.
Absstract of: US2025385405A1
A secondary battery includes a case having an opening, an electrode assembly in the case, and a cap assembly configured to seal the opening of the case, the cap assembly including a cap-up exposed to an outside of the case, a vent plate between the cap-up and the electrode assembly, the vent plate being electrically connected to the cap-up, a cap-down between the vent plate and the electrode assembly, the cap-down being electrically connected to the vent plate and the electrode assembly, a first insulator between the vent plate and the electrode assembly, and a second insulator between the vent plate and the electrode assembly, the second insulator being spaced apart from the first insulator and being configured to support the vent plate.
Absstract of: WO2025259092A1
The present invention relates to an electrode resistance measurement device. The objective of the present invention is to provide an electrode resistance measurement device comprising: a first terminal unit, which is in direct contact with an exposed surface of an electrode layer so as to be electrically connected thereto; a second terminal unit, which is in direct contact with a current collector so as to be electrically connected thereto; and a resistance measurement unit for measuring the electrical resistance between the first terminal unit and the second terminal unit, wherein the first terminal unit has a surface, which is in contact with the electrode layer and is formed as a microporous layer, and the second terminal unit includes a fixed means fixed to an uncoated part of the current collector, and thus through-plane resistance of the electrode layer formed on one surface of the current collector can be measured.
Absstract of: WO2025259085A1
A non-contact liquid heat dissipation material remixing device and a liquid heat dissipation material remixing method using same according to the present invention can optimize a remixing process by controlling process conditions while suppressing phase separation of a heat dissipation material through the remixing process of the liquid heat dissipation material. In particular, by adjusting the rotation time and rotation direction of the heat dissipation material and the inclination of a container containing the material, the miscibility of a polymer resin and thermally conductive particles can be increased and heat dissipation characteristics can be improved.
Absstract of: WO2025258905A1
The present invention relates to a dry electrode binder composition for a secondary battery, the dry electrode binder composition comprising cellulose functionalized to have an ionic functional group or a polar functional group bonded thereto. Accordingly, the composition makes it possible to manufacture a dry electrode without a fluorine-based binder. Moreover, the composition not only has excellent dispersibility and adhesion compared to a PTFE binder used as a conventional dry electrode binder, but also exhibits excellent electrolyte wettability through the interaction between an electrolyte and cellulose, thus making it possible to form a stable electrode-electrolyte interface. As a result, it is possible to manufacture a high-capacity thick film electrode, achieve a secondary battery having high energy density, and prepare for restrictions on the use of perfluorinated compounds.
Absstract of: WO2025258817A1
A battery module according to one embodiment of the present invention comprises: a battery cell stack formed by stacking a plurality of battery cells; and a bus bar frame which covers at least one surface of the battery cell stack, and on which at least two terminal bus bars electrically connected to the battery cell stack are mounted, wherein the terminal bus bar includes at least one coupling slit for electrical connection with an external component.
Absstract of: WO2025255980A1
Disclosed in the present application are a casing manufacturing method for a battery cell, the battery cell, a battery and an electric device. The casing manufacturing method for the battery cell comprises: using a first punch to stamp a material sheet, such that the material sheet forms an accommodating cavity having an opening; and removing waste material from the material sheet at the opening of the accommodating cavity, wherein the material sheet after the waste material is removed comprises a first side wall and a second side wall arranged adjacent to each other, the first side wall being arranged opposite the opening of the accommodating cavity, and a first arc-shaped portion being connected between the first side wall and the second side wall. The casing manufacturing method for the battery cell further comprises: using a second punch to stamp the material sheet, so as to form a clearance groove on the side of the first arc-shaped portion facing the accommodating cavity.
Absstract of: WO2025255890A1
The present application relates to the technical field of batteries. Disclosed are a tab welding structure and a battery. The tab welding structure comprises: a wound body (100), which comprises an electrode sheet and a full-tab (110), wherein the full-tab (110) is electrically connected to the electrode sheet, and the full-tab (110) is located at one end of the wound body (100); and a current collecting member (300), which is welded to the full-tab (110) to form a plurality of welding spot groups (200), wherein the plurality of welding spot groups (200) are radially distributed around the center of the wound body (100), and a plurality of welding spots (211) in each of the welding spot groups (200) are arranged in a wavy shape in the radial direction of the wound body (100). The welding structure can improve the uniformity of current conduction of the wound body (100), thereby reducing current loss.
Absstract of: WO2025255953A1
The present application relates to a battery and an electrical device. The battery comprises: a plurality of battery cells, the plurality of battery cells being arranged in rows and columns along a first direction and a second direction intersecting one another, and a first gap channel being formed between two adjacent columns of battery cells along the first direction; and a pressing strip, comprising a first adhesive blocking portion and an opening portion, wherein the first adhesive blocking portion is connected to surfaces of the two adjacent columns of battery cells facing a third direction and at least covers the first gap channel, and in a projection plane perpendicular to the third direction, the projection of the opening portion in the third direction is offset from the projection of the first gap channel. The opening portion is connected to the surfaces of the battery cells facing the third direction by means of adhesive. The first direction, the second direction, and the third direction are perpendicular in pairs. The battery of the present application can effectively reduce the probability of adhesive overflowing into a gap between two adjacent battery cells, thereby effectively improving battery yield.
Absstract of: US2025381883A1
Proposed are an electrified vehicle in which a real state of charge (SOC) of a battery is converted into a display SOC based on conditions such as a change in temperature of the battery, whether the battery is charged by an external power source, and a battery control method of the electrified vehicle. Particularly, a lower limit reference point, an upper limit reference point, and an inflection point are determined, a corresponding relationship between a real SOC and a display SOC is determined based on the lower limit reference point, the upper limit reference point, and the inflection point, and the real SOC is capable of being converted into the display SOC based on the corresponding relationship.
Absstract of: US2025381882A1
A computer system is disclosed. The computer system comprises processing circuitry configured to: determine operating windows of a battery pack of an electric vehicle defined by its state-of-charge (SOC) according to default predetermined SOC limits, extended predetermined SOC limits, and limited predetermined SOC limits. The processing circuitry is further configured to determine predictive energy or power utilization of the battery pack for a predetermined route. The processing circuitry is further configured to determine a health condition of the battery pack. The processing circuitry is further configured to in response to the determined health condition of the battery pack and the determined predictive energy or power utilization of the battery pack for the predetermined route, set a fixed operating window of the battery pack according to either the limited predetermined SOC limits, the default predetermined SOC limits, or the extended predetermined SOC limits.
Absstract of: US2025381886A1
Disclosed are an apparatus and associated method for controlling a temperature rise of a vehicle battery. The apparatus determines whether to increase the temperature of the battery provided in the vehicle, determines the maximum power to be supplied to a motor based on a battery power map, supplies the maximum power to the motor while the motor is separated from a drive axle, and transfers heat from motor coolant whose temperature has risen to battery coolant, thereby efficiently increasing the temperature of the battery without providing a separate heater.
Absstract of: US2025381431A1
The present invention relates to an all-solid-state rechargeable battery structure, including two or more unit cells including a positive electrode, a negative electrode, and a solid electrolyte layer between the positive electrode and the negative electrode, and elastic sheets located between and at the outermost end of the unit cells, wherein at least one of the elastic sheets includes an extinguishing capsule.
Absstract of: US2025381887A1
A control method for a battery self-heating system, the battery self-heating system includes a three-phase motor, a battery pack, a three-phase inverter, and a switch circuit, and the method includes: acquiring battery pack temperature information; according to the battery pack temperature information, when determining that the battery pack requires self-heating, obtaining voltage information between a first end and a second end of the switch circuit; according to the voltage information between the first end and the second end of the switch circuit, controlling the switch circuit for self-heating of the battery pack; according to the battery pack temperature information when determining that the battery pack does not require self-heating, obtaining current information between the first end and the second end of the switch circuit; and according to the current information between the first end and the second end of the switch circuit, controlling the switch circuit to stop self-heating.
Absstract of: US2025385404A1
Provided is a secondary battery having improved structural stability. The an electrode assembly includes a plurality of negative electrodes each including a negative electrode tab and a plurality of positive electrodes arranged alternately with the negative electrodes and each including a positive electrode tab, a first current collector electrically connected to the negative electrodes, and a first insulator disposed below the first current collector, wherein negative electrode tabs of at least some of the plurality of negative electrodes overlap in a first position to form a first negative electrode tab stack and negative electrode tabs of the others of the plurality of negative electrodes overlap in a second position, different from the first position, to form a second negative electrode tab stack, and the first insulator is disposed adjacent to the first negative electrode tab stack and the second negative electrode tab stack simultaneously.
Absstract of: US2025385389A1
A solid-state battery of the present disclosure includes an electrode body and current collector tabs that are connected to the electrode body. 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. The solid electrolyte layer has a support including a plurality of pores. The support has projecting parts that project relative to end surfaces of each of the positive electrode active material layer and the negative electrode active material layer. A number of pores in the support in the projecting parts is less than a number of pores in the support in the nonprojecting part.
Absstract of: US2025385365A1
A battery assembly includes: a plurality of battery cells arranged in a first direction; an end plate provided at an end portion of a stack of the plurality of battery cells in the first direction; a restraint member that restrains the plurality of battery cells and the end plate in the first direction; and an elastic mechanism provided between the restraint member and the end plate; and a mechanism that suppresses relative positional deviation between the end plate and the restraint member in a second direction orthogonal to the first direction.
Absstract of: US2025385395A1
A battery module in which a plurality of battery cells each having one side surface on which an electrode terminal is disposed are stacked includes: a first binding bar provided to cover a side of each of the plurality of battery cells on which the electrode terminal is disposed; and a plurality of bus bars that each electrically join electrode terminals of battery cells adjacent to each other, wherein each of the bus bars is fixed at a position facing the electrode terminals on an inner surface side of the first binding bar on which the battery cells are located, and the bus bar is not fixed to each of the electrode terminals and is in contact with and connected to the electrode terminal.
Absstract of: US2025385054A1
A method is for manufacturing an energy storage device. The method includes the steps of: providing a first anode portion with a first metal-ion pre-doping degree, providing a second anode portion with a second metal-ion pre-doping degree which is lower than the first metal-ion pre-doping degree, and producing an electrode assembly by combining the first and second anode portions with a cathode and a separator for preventing electrical contact between the anode portions and the cathode. An electrode assembly and an energy storage device are provided having a container including the electrode assembly.
Absstract of: WO2025258937A1
Provided are a negative electrode for a lithium metal battery and a lithium metal battery comprising same, the negative electrode comprising: a negative electrode current collector; and a protective layer disposed on the negative electrode current collector, wherein the protective layer comprises large particles and small particles, and the large particles and the small particles include a concentration gradient formed in the thickness direction of the protective layer.
Absstract of: WO2025258700A1
A power storage device 10 includes: an electrolyte 12 containing a lithium imide salt and an organic solvent; a container 11 filled with the electrolyte 12; a positive electrode 30 which includes a compound containing lithium atoms that are ionized in the electrolyte 12 and that are involved in charge and discharge; a negative electrode 20 which is arranged in the electrolyte, includes a metal substrate 23 constituting a collector 21, and is configured so that a layer where the lithium atoms are deposited is formed on the surface of the negative electrode during charging; and a separator 15 which has electric insulation properties, divides the inside of the container 11 into a first electrode chamber 16 where the negative electrode is disposed and a second electrode chamber 17 where the positive electrode 30 is disposed, and transmits lithium ions moving between the first electrode chamber 16 and the second electrode chamber 17.
Absstract of: WO2025258236A1
This refrigeration cycle device comprises a main refrigeration cycle (10), a sub-refrigeration cycle (20), and a heat medium circuit (30). The main refrigeration cycle (10) has a main compression unit (11), a first main evaporation unit (15), and a second main evaporation unit (16). The sub-refrigeration cycle has a sub-compression unit (21) and a sub-evaporation unit (26). The heat medium circuit (30) has a low temperature-side heat medium circuit (301) in which a second temperature adjustment heat exchange unit (80a) is disposed. In a second object normal cooling mode, the main compression unit (11) is stopped, the sub-compression unit (21) is operated, and the heat medium cooled by the sub-evaporation unit (26) is made to flow into the second temperature adjustment heat exchange unit (80a). In a second object large cooling mode, the main compression unit (11) is operated, the sub compression unit (21) is operated, and the heat medium cooled by the second main evaporation unit (16) and the heat medium cooled by the sub-evaporation unit (26) are made to flow into the second temperature adjustment heat exchange unit (80a).
Absstract of: WO2025258766A1
The present invention relates to a battery pack which comprises: a pack housing; a plurality of cell blocks accommodated in the pack housing and configured by stacking a plurality of battery cells; and a support members provided between adjacent cell blocks to support the adjacent cell blocks and including a plurality of assembly parts engaged with each other, wherein blocking parts are provided between the assembly parts to block transfer of heat or flame between the adjacent cell blocks.
Absstract of: WO2025256018A1
A composite film for a current collector, a preparation method therefor, and the use thereof. The composite film comprises a base film (B) and a polyimide layer (A) provided on at least one surface of the base film (B). The base film (B) comprises a base film (B) hydrophilically modified by a modification compound, the molecular structure of the modification compound containing a carbon-carbon double bond and a functional group, and the functional group comprising at least one of an anhydride group, a carboxyl group, a hydroxyl group, an amide group, or an ester group; the polyimide layer is prepared by an aqueous phase monomer and an organic phase monomer undergoing an interfacial polymerization reaction on the surface of the base film. The composite film has excellent heat resistance and mechanical properties, exhibits high adhesion to metal conductive layers, so as to prevent metal conductive layers in composite current collectors from peeling off, and in addition, is not prone to film breakage during the preparation process , thus achieving high yield and low cost.
Absstract of: WO2025255963A1
A coated lithium manganese iron phosphate material, and a preparation method therefor and the use thereof. The preparation method comprises the following steps: mixing and drying a phosphorus source, a lithium source, a manganese source, an iron source, a solvent, an organic amine and an organic carbon source, so as to obtain a precursor, wherein the organic amine comprises an amino group, and the organic carbon source comprises a hydroxyl group; and calcining the precursor, so as to obtain the coated lithium manganese iron phosphate material. By means of in-situ coating used in the preparation method, not only can in-situ doping of both carbon and nitrogen be achieved, but a carbon-nitrogen-coated network having high conductivity can also be formed, thereby overcoming the problems of poor intrinsic conductivity for both electrons and lithium ions, a low capacity retention rate during long-term cycling, etc., of lithium iron manganese phosphate materials.
Absstract of: WO2025255951A1
A cover closing mechanism, an encapsulation auxiliary device, a battery encapsulation apparatus, and a battery production system. The cover closing mechanism uses a first driver (15) to drive a first folding member (11) and a second folding member (12) to rotate and fold relative to each other, thus enabling a packaging film located between the first folding member and the second folding member to finish folding in half. Since a rotating assembly (30) can drive an entire cover closing assembly to rotate around a first axis (153), and the direction of the first axis is consistent with the stacking direction between the first folding member and the second folding member, after the folding in half is finished, under the action of the rotating assembly, the folded first folding member and second folding member can rotate around their own stacking direction, so that the orientations of different sides of the packaging film can be changed, thereby facilitating sealing operations on different sides on the cover closing mechanism while eliminating the need to transfer to other devices, improving the integration of the apparatus and the encapsulation efficiency.
Absstract of: US2025382480A1
The ink composition for light-sintering according to one embodiment may be prepared by including a binder that has excellent solubility and thus does not cause agglomeration during slurry preparation. By containing the ink composition for light-sintering, the oxide-based thin film sheet according to one embodiment may be formed, through light-sintering, in such a way that the particles thereof exhibit an appropriate shape, density, connection pattern, and the like, and thus an oxide-based solid electrolyte sheet having excellent durability and ionic conductivity can be prepared without being delaminated from a substrate or such issues. The oxide-based solid electrolyte sheet according to one embodiment is sintered rapidly through light-sintering and is thus prepared in a short period of time without loss of materials, such as lithium, or destruction of a substrate, and can be made thinner and larger without additional processing steps.
Absstract of: US2025382077A1
A base station for an unmanned aerial vehicle (UAV) that includes a thermoelectric conditioner (TEC); a first air circuit that is thermally connected to the TEC and which is configured to regulate temperature of the TEC; and a second air circuit that is thermally connected to the TEC such that the TEC is located between the first air circuit and the second air circuit. The first air circuit is open such that the first air circuit receives and circulates ambient air, and the second air circuit is closed such that the second air circuit is devoid of direct communication with the ambient and circulates thermally conditioned air.
Absstract of: US2025381592A1
An object of the present disclosure is to provide a system for cutting an electrode 10 (negative/positive) delivered in reel form at a constant pitch during a notching process of a secondary battery manufacturing process, and a configuration of the present disclosure includes an electrode supply unit 120 that supplies an electrode 10 of a secondary battery, an electrode feeder 130 that feeds the electrode 10 supplied from the electrode supply unit 120 for cutting, a primary cutting unit 140 that primarily cuts the electrode 10 supplied by the electrode feeder 130, and a secondary cutting unit 150 that secondarily cuts the electrode 10 supplied from the primary cutting unit 140.An effect of the present disclosure is that equipment that cuts the electrode 10 supplied in reel form at an ultra-high speed with a constant pitch suited to product specifications, performs external inspection, and loads acceptable and defective products into magazines enables production at more than twice the throughput of conventionally used equipment.
Absstract of: US2025385305A1
Provided is a method for preparing a sulfide-based solid electrolyte. The method for preparing a sulfide-based solid electrolyte may comprise the steps of: preparing a solid electrolyte including sulfide; and providing a precursor and a reactant containing oxygen on the solid electrolyte to form a protective film on the solid electrolyte through a reaction between the precursor and the reactant.
Absstract of: US2025381429A1
In a forced cooling device of a power storage module, liquid carbon dioxide is mainly utilized to function as a flame retardant, combustion can also be reduced by replacing oxygen, a burning surface can also be cooled to avoid further damages, and a gas detection device can quickly detect abnormal conditions of a battery cabinet and a battery module, and perform fastest cooling, and flame retarding and extinguishing. After fire has been extinguished, a battery cell is in a stabler state due to the low temperature, and flashover or high-temperature risks can be eliminated.
Absstract of: US2025385371A1
A modular electrochemical energy storage system comprises a plurality of modules. These include: at least one energy storage module, which is configured for the electrochemical storage of energy and has a first housing of a first housing type; and at least one control module, which is configured as an inverter and control unit for at least partial control of the energy storage system and comprises a second housing of a second housing type. The first housing and the second housing each comprise at least one housing opening on their upper housing sides and lower housing sides. In this case, a plurality of modules can be stacked vertically one on top of the other, regardless of their housing design, in such a way that, in the case of respective two modules which are vertically adjacent in the stack, a housing opening on the housing lower side of the upper of the two modules overlaps a housing opening on the housing upper side of the lower of the two modules in such a way that, by means of these overlapping housing openings, a vertical line routing for the line-bound connection of a module which is located in the stack (directly or indirectly) above the lower of the two modules is made possible. The connection can be, in particular, an electrical and/or a hydraulic connection.
Absstract of: US2025385394A1
A soldering structure and a soldering method for a battery cell, and a battery are provided, relating to the field of battery technology. The soldering structure for the battery cell includes a wound body; full electrode tabs, formed at ends of the wound body; and current collecting parts, soldered to sides, facing away from the wound body, of the full electrode tabs to form multiple solder joints; in which the multiple solder joints are arranged at equal arc distances along a winding direction of the wound body. The multiple solder joints are arranged at equal arc distances along the winding direction of the wound body, so that the solder joints can be uniformly distributed on the full electrode tabs along the winding direction, and a current can be uniformly transmitted into the wound body through the full electrode tabs, reducing the current loss.
Absstract of: US2025385385A1
The present application relates to a separator, a battery cell, a battery and an electrical apparatus, wherein the separator comprises two surfaces opposite to each other along its own thickness direction, at least one of the surface of the separator and the interior of the separator comprises a pore structure, and the separator further comprises a swellable polymer; the separator satisfies: when a pressure of 1.25 MPa is applied along the thickness direction of the separator, the compression rate ΔV of the separator is ≤25%.
Absstract of: US2025385383A1
A battery pack includes a plurality of battery modules; and a pack case accommodating the plurality of battery modules, where the pack case includes a pack tray including an internal space in which the battery modules are received and an open top; and a pack cover covering the top of the pack tray, coupled to the pack tray, and including a gas venting path disposed therein, the gas venting path communicating with the battery modules.
Absstract of: US2025385362A1
An electrical energy store for a motor vehicle has storage cells designed to store electrical energy, which are arranged in a store housing which has a base having an upper base element and a lower base element, wherein the separately formed base elements can be detached from one another in a non-destructive manner, at least with respect to the base elements.
Absstract of: WO2025257849A1
The present disclosure relates to a field of lithium-ion batteries Particularly, the present disclosure relates to a silicon polymer hydrogel composite material for electrode. The present disclosure also relates to a process of preparation of a silicon polymer hydrogel composite material using a sol-gel-polymerization. The present disclosure also provides a silicon polymer hydrogel composite anode electrode and its method of preparation. More particularly, the present disclosure provides a lithium-ion battery. A cycle life analysis of a liquid electrolyte system over 500 cycles at a rate of 0.1 Ag-1 was conducted, achieving a specific capacity of 534mAh g-1. Additionally, the specific capacity of a quasi-solid electrolyte system over 100 cycles at the same rate was investigated, which achieved a capacity of 717 mAh g-1.
Absstract of: WO2025258765A1
Disclosed are a battery pack case and a battery pack and vehicle comprising same, the battery pack case comprising: a base plate which forms one surface of the battery pack case and has a through-hole communicating the interior space of the battery pack case with the outside; and an outer plate which is disposed so as to be spaced apart from an outer surface of the base plate, shields the through-hole to prevent same from being exposed to the outside, and creates a separation space between the outer plate and the base plate.
Absstract of: WO2025258768A1
Disclosed are a battery pack case, a battery pack, and a vehicle comprising same, the battery pack case comprising: a base plate which forms one surface of the battery pack case and has a through-hole communicating the interior space of the battery pack case with the outside; an outer plate which is disposed so as to be spaced apart from an outer surface of the base plate, shields the through-hole to prevent same from being exposed to the outside, and creates a separation space between the outer plate and the base plate; and a discharge flow path which is formed in the separation space and bent multiple times and has one end communicating with the through-hole and the other end communicating with the outside of the separation space.
Absstract of: WO2025257853A1
The present invention provides a cathode active material composite for lithium-ion secondary battery. The cathode active material composite of the present invention comprises a composite of Lithium manganese iron phosphate and Nickel Manganese Cobalt with specific crystal morphology. The present invention also provides a cathode comprising the active cathode material composite and a dry manufacturing process for preparation of the cathode. The cathode of present invention has high electrode density and demonstrates excellent electrochemical performance.
Absstract of: WO2025258783A1
Disclosed are a battery pack case, a battery pack, and a vehicle comprising same, the battery pack case comprising: a base plate which forms one surface of the battery pack case and has a through-hole communicating the interior space of the battery pack case with the outside; an outer plate which is disposed so as to be spaced apart from an outer surface of the base plate, shields the through-hole to prevent same from being exposed to the outside, and creates a separation space between the outer plate and the base plate; and a venting valve which is provided on the outer plate to selectively discharge fluid in the separation space.
Absstract of: WO2025255945A1
A battery production line comprises a machine mating structure. The machine mating structure comprises a duct (10) and at least one group of mounting assemblies (40). Each group of mounting assemblies (40) comprises a first flange (41), a second flange (42), an air pump, and a sensor. The first flange (41) is connected to the duct (10), and the second flange (42) is connected to an external device. The first flange (41) and the second flange (42) are in plug-in fit, and a detection cavity (47) is formed between plug-in sections of the first flange (41) and the second flange (42). Two detection holes (46) are formed in at least one of the first flange (41) and the second flange (42), and each detection hole (46) is communicated with the detection cavity (47). One detection hole (46) is connected to the air pump, and the other detection hole (46) is connected to the sensor.
Absstract of: WO2025255950A1
A battery (100) and an electrical device. The battery (100) comprises a plurality of battery cells (20) and heat exchange assemblies (30), wherein the plurality of battery cells (20) are arranged in columns, and the columns of battery cells (20) are arranged in the direction of length or direction of width of the battery (100); each heat exchange assembly (30) is arranged between two adjacent columns of battery cells (20); the heat exchange assembly (30) comprises a support member (31) and two cooling plates (33) arranged on the support member (31), the two cooling plates (33) being attached to a corresponding one of columns of battery cells (20), and the two cooling plates (33) being in communication with each other; the heat exchange assembly (30) comprises a connecting tubing (35), and the two cooling plates (33) in the heat exchange assembly (30) are in communication by means of the connecting tubing (35); and the connecting tubing (35) comprises a first joint (351) and a second joint (352) which are respectively arranged on the two cooling plates (33), the first joint (351) being connected to the second joint (352).
Absstract of: WO2025255869A1
Disclosed in the present utility model is a battery module featuring pressure detection. The battery module comprises: a battery cell assembly, comprising a plurality of battery cells and end plates, the plurality of battery cells being sequentially stacked in an arrangement direction, and each end plate covering the outside of an outermost battery cell in the arrangement direction; a partition plate, the partition plate being provided between two adjacent battery cells in the arrangement direction; and a pressure detector, the pressure detector being used for detecting the pressure of the battery cells. The battery module featuring pressure detection of the present utility model is provided with a pressure detector configured to detect pressure changes when battery cells undergo deformation, thereby monitoring the expansion of the battery cells of the battery module.
Absstract of: WO2025256008A1
Provided in the present application are a cylindrical battery cell, a battery, and an electrical device. The cylindrical battery cell comprises a casing, an electrode assembly, and a binding member. The electrode assembly is accommodated inside the casing and comprises an electrode body and a tab, and the tab is led out from an end portion of the electrode body. The binding member is arranged between the casing and the electrode assembly. The binding member is disposed around an outer peripheral side of the electrode body in the circumferential direction of the electrode body. The binding member has a first end and a second end arranged in the circumferential direction, and the first end and the second end are spaced apart from each other. The cylindrical battery cell provided in the embodiments of the present application helps to improve the reliability performance of cylindrical battery cells.
Absstract of: US2025385336A1
A battery cell including a main body, the main body having an inner wall defining a chamber and an outer wall opposite the inner wall. The battery cell further including battery internals arranged in the chamber and one or more barrier coatings arranged on at least one of the inner wall and the outer wall. The one or more barrier coatings having a first thermal conductivity at a first thermal condition and a second thermal conductivity at a second thermal condition.
Absstract of: US2025385298A1
A battery that may be exposed to high temperatures such as when steam sterilizing that retains its capacity and power delivery is comprised of a cathode comprised of lithium metal phosphate, an anode comprised of graphitic carbon, a separator comprising a material having a melt temperature of at least 150° C. and an electrolyte comprising a low boiling point solvent, a high boiling point solvent and a salt, the salt being comprised of lithium difluoro(oxalate)borate and lithium bis (trifluoromethanesulfonimide), and the lithium bis (trifluoromethanesulfonimide), by weight, is a majority of the salt present in the electrolyte.
Absstract of: US2025385304A1
A solid-state battery including a positive electrode layer containing a positive electrode active material containing lithium and a solid electrolyte, wherein the positive electrode layer has a self-decomposition temperature of 215° C. or higher, and the solid electrolyte contains lithium borosilicate glass.
Absstract of: US2025385315A1
An electrolyte for use in a secondary lithium battery having a nickel-rich cathode material includes lithium bis(fluorosulfonyl)imide, a solvent system including a first solvent and a fluorinated cyclic ether having a molecular weight greater than 110 g/mol, and, optionally, an additive. The first solvent may be a carbonate, an ester, an ether, a fluorinated carbonate, a fluorinated ester, a fluorinated ether, or any combination thereof. The solvent system comprises at least 50 wt % of the fluorinated cyclic ether.
Absstract of: US2025385342A1
A battery module includes battery cells each of which includes a pair of broad width surfaces and that are arranged such that the broad width surfaces are opposed to each other and a heat insulator arranged between an adjacent pair of battery cells. The heat insulator includes a heat insulating sheet and a buffer sheet bonded to the heat insulating sheet. The heat insulating sheet is formed of a material that can be more easily compressively deformed than the heat insulating sheet. The heat insulating sheet includes a recessed portion in a surface to which the buffer sheet is bonded.
Absstract of: US2025385323A1
A battery module includes: a plurality of battery cells; a busbar contacting the plurality of battery cells; a thermally and electrically conductive bushing thermally and electrically connected to the busbar; and a circuit board fixed to the bushing by a fixation element such that the bushing spaces the circuit board from the busbar. The circuit board includes: a temperature sensor in thermal contact with the busbar through the bushing; and a voltage signal line in electrical contact with the busbar through the bushing.
Absstract of: US2025385380A1
In a power storage device, a smoke exhaust valve is disposed in a smoke exhaust space through which gas discharged from a gas exhaust valve of a power storage cell flows. A housing includes a bottom portion, a side wall portion extending upward from an outer peripheral edge of the bottom portion, and a protruding portion protruding from the side wall portion. The smoke exhaust valve is provided in the protruding portion and is disposed above a lower surface of the power storage cell.
Absstract of: US2025385384A1
A power storage device includes at least one power storage cell, a top wall provided over the power storage cell, a facing wall facing the power storage cell in a width direction, a support portion supporting the power storage cell, and a bottom plate disposed under the power storage cell. The bottom plate includes a connecting surface formed so as to be flat. At least one of the facing wall and the support portion includes a bottom surface formed in a position closest to the connecting surface of the bottom plate and formed so as to be flat. The connecting surface of the bottom plate is connected to the bottom surface.
Absstract of: US2025385387A1
A composite separator and a preparation method therefor, as well as a lithium-sulfur battery containing the composite separator are provided. The composite separator has a polymer substrate film and a composite layer disposed on the surface of the polymer substrate film. The composite layer includes a molecular sieve and a conductive carbon material. The molecular sieve contains cobalt and optionally lithium.
Absstract of: US2025385369A1
A battery pack includes enclosure plates, a liquid cooling plate and battery cells. The battery cells are mounted on the liquid cooling plate, the enclosure plates surround the liquid cooling plate and the battery cells, and the liquid cooling plate is connected to the enclosure plates; an accommodating cavity is provided between the enclosure plates and the battery cells; the liquid cooling plate is connected with an outlet pipe and an inlet pipe, and the outlet pipe and the inlet pipe are both located in the accommodating cavity; a top surface and a bottom surface of an enclosure plate are each provided with a connecting component.
Absstract of: US2025385364A1
Provided are a battery module and a battery pack. The battery module includes an end panel assembly, including an end panel body and a floating connection assembly, wherein the floating connection assembly is slidably connected to the end panel body; an electrical structure, wherein a part of the electrical structure is connected to a first area of a first panel, and the other part of the electrical structure is connected to a second area of the first panel; and a cell, disposed on one side close to the second panel. When the cell is in an expanded status, the first area of the end panel body moves away from the cell relative to the second area, the floating connection assembly moves away from the cell relative to the end panel body, so that the electrical structure as a whole moves with the first area of the end panel body.
Absstract of: WO2025257840A1
The present invention relates to a system (100, 200) and a method (300) for securing a unique identification number (UID) of a battery (102, 202). The system (100, 200) has a battery (102, 202) and a storage medium (104, 210). The battery (102, 202) has a unique identification number (UID) and the storage medium (104, 210) is configured to store the unique identification number (UID). The system (100, 200) further has a control unit (106, 204). The control unit (106, 204) is operably connected to the battery (102, 202) and the storage medium (104, 210). The control unit (106, 204) includes a cryptographic module (110, 208) and an authentication module (112, 206). The cryptographic module (110, 208) is configured to lock the unique identification number (UID) through a cryptographic key. The authentication module (112, 206) is configured for unlocking the unique identification number (UID).
Absstract of: WO2025258604A1
Provided is a high-capacity all-solid-state secondary battery. This all-solid-state secondary battery is characterized by: including a positive electrode, a negative electrode, and a solid-state electrolyte layer disposed between the positive electrode and the negative electrode; and an intermediate layer, containing a fibrous resin and a solid-state electrolyte, being interposed between the negative electrode and the solid-state electrolyte layer.
Absstract of: WO2025258394A1
A power storage device (10) is provided with: at least one power storage cell (100); a bottom wall (235) that is disposed below the at least one power storage cell (100); and a structural member (300) that is provided on the bottom wall (235). A safety valve (SV) is provided on the lower surface (114a) of the power storage cell (100). The at least one power storage cell (100), the bottom wall (235), and the structural member (300) define a space (S) below the at least one power storage cell (100).
Absstract of: WO2025258393A1
A power storage device (10) is provided with: at least one power storage cell (100); a top wall (220) that is provided above the power storage cell; opposing walls (212, 240) that face the power storage cell in the width direction; and a support member (300) that supports the power storage cell. The opposing walls extend downward from the top wall (220). The support member (300) supports the lower surface (114a) of both ends of the power storage cell (100) in the width direction.
Absstract of: WO2025258193A1
A battery unit (11) comprises: battery sections (21); battery monitoring devices (30) that detect battery information and transmit the battery information by wireless communication; a battery control device (40) that receives battery information from the battery monitoring devices by wireless communication; and an electrically conductive housing (50) that houses the battery sections (21), the battery monitoring devices (30), and the battery control device (40). In the battery unit (11), the interior of the housing houses one or a plurality of the battery sections, and comprises radio wave intrusion suppression members (81) that close at least a portion of a gap between the battery sections and the housing and gaps (25) between the battery sections.
Absstract of: WO2025255921A1
An expansion beam (2), a box assembly (101), a battery (100) and an electric device (1000). The expansion beam (2) comprises a first beam body (21) and a second beam body (22), wherein the first beam body (21) has a first side (21a) and a second side (21b) which are opposite each other; at least one of the first side (21a) and the second side (21b) is adapted to be arranged towards a battery cell (4); the first beam body (21) comprises a first main body portion (211), a first flange portion (212) and a second flange portion (213); the first flange portion (212) extends from the first main body portion (211) in a direction close to the second flange portion (213) so as to close at least part of an open end of a first cavity (211a); the second flange portion (213) extends from the first main body portion (211) in a direction away from the first flange portion (212); the second beam body (22) at least covers at least one of the first side (21a) and the second side (21b) of the first beam body (21), so as to separate the first beam body (21) from the battery cell (4); and thermal insulation and electrical insulation properties of the second beam body (22) are both superior to that of the first beam body (21).
Absstract of: WO2025255964A1
A lithium-ion battery positive electrode material, a preparation method therefor, and a use thereof. The preparation method comprises the following steps: (1) mixing an elemental metal with a phosphoric acid solution and reacting to obtain a metal phosphate solution, wherein the elemental metal comprises elemental iron and/or elemental manganese; (2) mixing the metal phosphate solution, a lithium-containing solution, and a pH regulator solution and thermally reacting to obtain a reaction product; and (3) mixing the reaction product with a carbon source and sintering to obtain the lithium-ion battery positive electrode material. In the preparation method, ferrous dihydrogen phosphate or manganese dihydrogen phosphate generated by inexpensive metal iron or manganese reacting with phosphoric acid is used as a reaction raw material, the reaction raw material reacts with a lithium-containing solution at a low temperature under the action of a pH regulator, and subsequent sintering is performed to obtain a lithium iron (manganese) phosphate positive electrode material having a stable structure and excellent performance. Moreover, the preparation method involves simple operations, has low cost, and is suitable for industrial application.
Absstract of: WO2025255917A1
A battery cell feeding device, a packaging apparatus, and a battery production system. The battery cell feeding device comprises: a transfer platform (100) having a placement portion (110) for placing a battery cell (900) thereon; and a lifting mechanism (200) comprising a plurality of material-receiving members (210) distributed at intervals, wherein all of the material-receiving members (210) can pass through the placement portion (110) and ascend and descend relative to the placement portion (110), so as to bear the battery cell (900) at a preset position and release the battery cell (900) onto the placement portion (110). When ascending to bear the battery cell, the material-receiving members can be offset from a clamping member on the battery cell so as to avoid interfering with the structure of the clamping member; and during the descending and resetting process, the material-receiving members release the battery cell onto the placement portion to complete the feeding of the battery cell, enabling the transfer platform to smoothly transfer the battery cell to a packaging station, thereby improving the positioning accuracy of the feeding of the battery cell, and thus improving the packaging quality and packaging efficiency of the battery cell.
Absstract of: US2025385338A1
A prismatic battery cell comprising a prismatic can defining a chamber, a first terminal and a second terminal each coupled to the prismatic can, a vent coupled to the prismatic can and in fluid communication with the chamber, and battery internals arranged in the chamber comprising at least one jelly roll. The prismatic battery cell further comprising a thermal runaway propagation management system comprising a bladder arranged in the chamber with respect to the at least one jelly roll, a port coupled to the prismatic can and in fluid communication with the bladder, and a fluid at least partially filling the bladder.
Absstract of: US2025385324A1
A battery energy storage system is provided and comprises a battery module comprising a plurality of batteries and a plurality of microinverters including wiring that is grouped in a branch cable that connects to a trunk cable for connecting the wiring to a wiring box.
Absstract of: US2025385353A1
A casing assembly, a battery cell, a battery, and an electric apparatus are disclosed. The casing assembly includes a casing and a sealing assembly. The casing has a through hole, and the sealing assembly seals the through hole. The sealing assembly includes an insulating member that covers a conductive member. The conductive member includes a first contact portion and a second contact portion. A connecting member with a hollow inner cavity is connected to the casing, and the insulating member fills the inner cavity. The first contact portion is located on the inner side of the casing, and the second contact portion is located on the outer side. This structure allows the sealing assembly to block the through hole and helps prevent electrolyte leakage, thereby enhancing the sealing performance of the casing.
Absstract of: US2025385382A1
A battery includes: a battery cell with a pressure relief mechanism provided at a first wall thereof; a support component configured to support the battery cell and including first and second support components that are connected and located on the same side of the battery cell, the first support component being located between the first wall and the second support component and attached to the first wall, the first support component being provided with a first through hole corresponding to the pressure relief mechanism, and the second support component being provided with a second through hole corresponding to the pressure relief mechanism; and a first protective component configured to close the second through hole and to be destroyed when the pressure relief mechanism is actuated, so as to allow an emission from the battery cell to pass through the second support component.
Absstract of: US2025385355A1
The present invention, in order to improve stability by directing a venting direction, provides a battery cell and a battery module comprising same, comprising: an electrode assembly; a case for accommodating the electrode assembly; an electrode terminal electrically connected to the electrode assembly; and a sealing portion to which an edge of the case is joined, wherein the sealing portion comprises a first sealing portion in which the electrode terminal is embedded and a second sealing portion in which the electrode terminal is not embedded, a folding portion is formed on at least a part of the second sealing portion, and a holding member coupled to the folding portion is included.
Absstract of: US2025384540A1
The present disclosure relates to lead tab alignment device comprising a photographing unit for photographing a battery cell including a lead tab portion under assembly, wherein the battery cell under assembly includes a case in which an electrode assembly and the lead tab portion electrically connected to the electrode assembly are arranged, and an alignment correction unit detachably coupled to the lead tab portion and for adjusting the position of the lead tab portion, and battery manufacturing system comprising same, and method for manufacturing battery cell by battery manufacturing system.
Absstract of: US2025386418A1
A circuit board assembly for a battery module includes a first printed circuit board (PCB) including a plurality of balancing resistors and a plurality of balancing circuit switches corresponding to the plurality of balancing resistors. The first PCB includes at least one metallic layer. The plurality of balancing resistors and the plurality of balancing circuit switches perform a cell balancing operation of a plurality of battery cells of the battery module. Heat generated during the cell balancing operation of the plurality of battery cells is dissipated via the first PCB. The circuit board assembly also includes a second PCB. The second PCB includes a plurality of resistor-capacitor (RC) low-pass filters and an analog front-end (AFE) chip that is adapted to at least monitor a voltage and a temperature of the plurality of battery cells of the battery module.
Absstract of: US2025385526A1
A system and method includes suppling power to a utility grid with a plurality of fuel cell power plants, storing power generated by the plurality of fuel cell power plants with an energy storage system including one or more batteries, and maintaining a standby state-of-charge of the one or more batteries of the energy storage system via an energy management system. The system and method further includes generating a load request to at least one of the plurality of fuel cell power plants via the energy management system, comparing the load request to a predetermined limit; and if the load request exceeds the predetermined limit, commanding the at least one of the plurality of fuel cell power plants to ignore the load request for a predetermined amount of time.
Absstract of: US2025385538A1
A battery cell charging method for a plurality of battery cells connected in series includes charging the plurality of battery cells with a first constant current, and cutting off the first constant current for a battery cell reaching a predetermined set voltage, and charging the plurality of battery cells with a second constant current lower than the first constant current when the first constant current is cut off for the plurality of battery cells, and cutting off the second constant current for a battery cell reaching the set voltage again.
Absstract of: US2025385535A1
To provide a charging method in accordance with a state of a positive electrode at the start of charging. To improve charge characteristics of a battery. The charging method is a method for charging a battery including a positive electrode active material represented by LixMO2 in a positive electrode. The Mis one or more selected from Co, Ni, Mn, and Al. It is determined whether the first charging is necessary or not by a value of the x at a time when charging of the battery starts. In the case where the first charging is determined to be necessary, second charging and third charging are performed in order after the first charging is performed. In the case where the first charging is determined to be unnecessary, the second charging and the third charging are performed in order. The first charging is performed for a charge time longer than or equal to 10 seconds and shorter than or equal to 30 seconds with a current value that is higher than or equal to 1 C and lower than or equal to 5 C. The second charging is constant current charging, and the third charging is constant voltage charging.
Absstract of: WO2025258158A1
A cutting device (10) comprises: a drum-like member (13) having a cylindrical outer shell part (17) in which a slit hole (15) is formed along a drum axial direction (A11); a suction holding means (51) for suctioning and holding a sheet-like member (11) continuously fed from the outside on the surface (sheet suction surface (17a)) of the outer shell part; a rotation mechanism (52) for rotating the outer shell part of the drum-like member in the circumferential direction (rotation direction (A12)); a cutting blade (16) that moves along the slit hole; and a reciprocating motion mechanism (53) for reciprocating the cutting blade in the drum axial direction.
Absstract of: WO2025258157A1
Provided is a battery state detection device capable of more appropriately detecting the state of a secondary battery. This battery state detection device comprises: a reference waveform generation unit that constitutes a circuit including a secondary battery, that detects the state of the secondary battery, and that generates a reference waveform; an application waveform output unit that outputs an application waveform to be applied to the secondary battery on the basis of the reference waveform and that performs feedback correction on the phase difference between the reference waveform and the application waveform; a detection unit that, in a state in which the application waveform has been applied, detects an output signal waveform output from the secondary battery; and an index value acquisition unit that, on the basis of the detection result of the detection unit, acquires an index value indicating the scale of fluctuation occurring in the output signal waveform.
Absstract of: WO2025258004A1
According to the present invention, a rechargeable battery, a method for manufacturing the rechargeable battery, and a method for manufacturing an electrode for the rechargeable battery are provided with: a step for forming electrode slurry that includes an electrode active material, amorphous carbon or a carbon fiber, a thickener, and a binder; a step for applying the electrode slurry to a substrate and then drying the same, thereby forming an electrode coating film on the surface of the substrate; and a step for superposing the substrate having the electrode coating film formed on the surface thereof onto one surface of perforated metal foil including a plurality of through-holes, and then applying a pressure thereto, thereby transferring the electrode coating film to the perforated metal foil.
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: US2025385377A1
A power storage device includes: a first power storage stack including a plurality of power storage cells; a second power storage stack including a plurality of power storage cells; and a partition wall separating the first and second power storage stacks from each other. The power storage cells each include a cell main body and an external terminal. The partition wall includes: an upper partition portion located at a higher position than the external terminal; a lower partition portion located at a lower position than the external terminal; and a connecting portion located between a pair of the external terminals adjacent to each other in the second direction, and connecting the upper and lower partition portions to each other. A width of the connecting portion is smaller than a width of the upper partition portion and a width of the lower partition portion.
Absstract of: US2025385346A1
Apparatus, systems, and methods described herein relate to the manufacture and use of single pouch battery cells. In some embodiments, an electrochemical cell includes a first current collector coupled to a first portion of a pouch, the first current collector having a first electrode material disposed thereon, a second current collector coupled to a second portion of the pouch, the second current collector having a second electrode material disposed thereon, and a separator disposed between the first electrode material and the second electrode material. The first portion of the pouch is coupled to the second portion of the pouch to enclose the electrochemical cell.
Absstract of: US2025385393A1
A battery assembly includes: a first binding bar provided to cover a side of each of a plurality of battery cells on which an electrode terminal is disposed; and a plurality of bus bars that each electrically join electrode terminals of battery cells adjacent to each other, wherein each of the bus bars is fixed at a position facing the electrode terminals on an inner surface side of the first binding bar on which the battery cells are located, the bus bar is not fixed to each of the electrode terminals and is in contact with and connected to the electrode terminal, and the bus bar includes a base portion composed of a resin, and a bus bar terminal embedded in the base portion and having a first contact surface and a second contact surface each exposed from the base portion to make contact with the electrode terminal.
Absstract of: US2025385357A1
The invention relates to a composition comprising: —a moisture-crosslinkable polymer, —at least 1% by weight of unexpanded heat-expandable organic particles, and—at least 20% by weight of an inorganic filler, the weight percentages being with respect to the total weight of the composition. The invention also relates to a method for bonding substrates implementing the composition according to the invention. Furthermore, the invention relates to an article comprising the composition according to the invention. The invention further relates to a method for separating substrates implementing the composition according to the invention and comprising a heating step. Finally, the invention relates to the uses of the composition according to the invention.
Absstract of: US2025385374A1
A battery pack includes a battery cell assembly including one or more battery cells, a case in which at least a portion of the battery cell assembly is accommodated, the case including a first groove and a second groove, a cover coupled to the case, and a sealing member between the case and the cover, a portion of the sealing member being located in the first groove and the second groove.
Absstract of: US2025385375A1
Disclosed is a battery pack in which a fastening recess is provided on a side surface of a vertical frame and a CMU is fastened to the fastening recess, thereby securing rigidity of the vertical frame and maximizing an internal space of the battery pack.
Absstract of: US2025385337A1
A battery module is disclosed. The battery module includes a battery stack including a plurality of battery cells stacked in a first direction, one or more pad members provided between the plurality of battery cells, and a heat transfer member. The heat transfer member is provided at one side of the battery stack and provided to be in contact with the battery stack. The plurality of battery cells extend in a second direction intersecting the first direction. The heat transfer member is provided at one side of the battery stack in a third direction intersecting the first and second directions. The heat transfer member includes first and second heat transfer members provided in the form of different materials.
Absstract of: US2025385530A1
Discussed is a battery apparatus that includes a main battery and an auxiliary battery. The battery apparatus can include a control unit that is configured to determine a state of the main battery according to a wake-up signal from the auxiliary battery, and a boost charger that receives power from the auxiliary battery and charges the main battery according to a determination of the control unit.
Absstract of: US2025385547A1
Aspects of the application describe a wireless charging device and a charging method. The wireless charging device comprises: a housing having a first form and a second form; a transmitting coil disposed inside the housing; and a controller disposed inside the housing and connected to the transmitting coil. When the housing is in the first form, the controller is configured to control the transmitting coil to charge the electronic device in a first charging mode. When the housing is in the second form, the controller is configured to control the transmitting coil to charge the electronic device in a second charging mode. A charging power in the first charging mode is different from a charging power in the second charging mode.
Absstract of: US2025385378A1
A battery module in which a plurality of battery cells are stacked, each of plurality of battery cells having a first side surface on which an electrode terminal is disposed, each of the plurality of battery cells having a rectangular parallelepiped appearance having a flat surface shape, wherein end plates are disposed at respective end portions of a stack of the plurality of battery cells, a collective terminal base including a connection portion coupled to an external connection member is joined to an electrode terminal of a battery cell that is in contact with at least one of the end plates, and the connection portion is provided on a surface of the end plate opposite to a surface of the end plate in contact with the battery cell.
Absstract of: US2025385534A1
Methods, apparatuses, and systems are described for determining whether to charge a battery of a device based one or more parameters are described. A device may initially be fully charged in low power or sleep mode when it receives a power consumption event. Based on the power consumption event, the device may determine whether one or more parameter thresholds associated with the one or more parameters are satisfied and cause the device to charge the battery.
Absstract of: US2025385503A1
A wiring module to be attached to a plurality of power storage devices includes a wire, a terminal connected to the wire, and a circuit board, with the terminal including a connecting part connected to the circuit board and a press-fit part different from the connecting part, and the circuit board having a connection land to which the connecting part is soldered and a press-fit hole arranged in a different position from the connection land and into which the press-fit part is press-fit.
Absstract of: WO2025257971A1
Provided is a battery control method for an all-solid-state battery (10) comprising: a battery cell (11) in which a positive electrode body (111), a solid electrolyte layer (112), and a negative electrode body (113) are laminated in the Z direction; a pair of restraint plates (14) that have a battery main part (13) for alternately laminating elastic bodies 12 in the Z direction, and sandwich the battery main part (13) from the Z direction; and a plurality of fastening members (15) that fasten the pair of restraint plates (14) to each other. Among the plurality of fastening members (15), a strain gauge (16) that measures the strain of the fastening member (15) is provided to at least two or more different fastening members (15), and the in-plane distribution of the pressure applied to the battery main part (13) is measured on the basis of the difference between the measurement signals output from at least two or more strain gauges (16).
Absstract of: WO2025256664A1
A battery pack and a battery pack manufacturing method. The battery pack comprises cooling plate assemblies (200), and a plurality of battery cell modules (10), which are stacked from top to bottom, wherein the cooling plate assembly (200) is provided between two adjacent cell modules (10), and each cooling plate assembly (200) comprises a first cooling plate (210) and a second cooling plate (220), the first cooling plate (210) supporting the bottom of the battery cell module (10) of the corresponding two adjacent battery cell modules (10) located above, and the second cooling plate (220) covering the top of the battery cell module (10) of the corresponding two adjacent battery cell modules (10) located below; and the mechanical strength of the first cooling plates (210) is greater than the mechanical strength of the second cooling plates (220).
Absstract of: WO2025256656A1
A cooling plate, comprising at least two stacked pressure plates, at least one branch flow channel being provided between adjacent pressure plates; the branch flow channel has an inlet and an outlet, and the inlet and the outlet are located on a same side of the cooling plate; the side of the branch flow channel having the inlet is defined as an inlet side, and the other side of the branch flow channel is defined as a return side; the branch flow channel comprises an inlet flow channel and a return flow channel, the inlet flow channel has an inlet, the return flow channel has an outlet, and the inlet flow channel and the return flow channel are in communication at the return side; and a wall forming the branch flow channel is located between the adjacent pressure plates, at least one pressure plate is partially stamped, and the wall forming the branch flow channel is formed by stamping. The cooling plate as a whole exhibits good thermal uniformity. In addition, in the present application, a pressure plate structure having branch flow channel walls is formed by means of a stamping process, so that the structure is easy to implement in mechanized and automated production, facilitating the improvement of production efficiency.
Absstract of: WO2025255898A1
The present application relates to the technical field of batteries, and provides a cell welding structure, a welding method, and a battery. The cell welding structure comprises: a winding body; a plurality of tab groups formed at an end portion of the winding body, the plurality of tab groups being radially arranged around the center of the winding body; and a current collector, welded to the side of the plurality of tab groups facing away from the winding body to form a plurality of welding spots. The present application can improve the uniformity of current conduction between die-cut tabs and electrode sheets, reduce the amount of current loss, reduce the number of welding spots, and improve work efficiency.
Absstract of: WO2025255774A1
The present invention relates to a method for preparing a nanometer sodium vanadium phosphate material, comprising the following preparation steps: 1) weighing raw materials, the raw materials consisting of a tetravalent vanadium compound, a sodium phosphate salt and sodium fluoride, or the raw materials consisting of a tetravalent vanadium compound and a sodium phosphate salt; and 2) placing the raw materials in a high-speed homogenizing mill to complete a rapid nucleation process and control a crystal growth process. The present invention takes use of the principle of atom economy, and uses the milling device having a high power and a high rotation speed to perform efficient preparation of the nanometer sodium vanadium phosphate. The present invention achieves efficient atom utilization of the raw materials, and avoids generation of unnecessary waste materials and waste of the raw materials, which omits waste liquid treatment steps involved in solvent emission and washing processes, thereby achieving green preparation. On the basis of the milling device having a high power and a high rotation speed, high-speed collision is achieved to accelerate the reaction and to efficiently control the particle size of the product, thereby achieving nano-scale preparation. The present invention has the advantages of simple operation, high efficiency, easy industrial scale-up production and the like and helps to promote the research, popularization and application of the sodium vanadium p
Absstract of: WO2025255777A1
A resin polymer, a resin composition and a preparation method therefor, a modified binder, an electrode slurry, an electrode sheet, and a battery. The resin polymer is a linear polymer or a branched polymer. When the resin polymer is a linear polymer, the resin polymer has a backbone composed of repeating unit a, repeating unit b1, repeating unit c, and repeating unit d. When the resin polymer is a branched polymer, the resin polymer has a backbone composed of repeating unit a, repeating unit b2, repeating unit c, and repeating unit d. The repeating unit b2 contains branched chain E, and the branched chain E contains one or more of the repeating unit a, the repeating unit b1, the repeating unit c, and the repeating unit d. An electrode sheet prepared from the resin polymer and the resin composition has excellent tensile strength, elastic modulus, and corrosion resistance, and a battery prepared from the electrode sheet has a long cycle life.
Absstract of: DE102025122946A1
Batteriemodul, welches einen Batteriestapel, welcher eine Mehrzahl von Batterien aufweist, welche entlang einer ersten Achse gestapelt sind, und ein Erfassungsmodul (200), welches mit einer Seite des Batteriestapels gekoppelt ist, aufweist. Das Erfassungsmodul (200) kann einen Substratteil (210), welcher oberhalb des Batteriestapels bereitgestellt ist, und einen Temperaturerfassungsteil (220), welcher mit einer Seite des Substratteils (210) verbunden ist und welcher eine Seite hat, welche bereitgestellt ist, um mit dem Batteriestapel in Kontakt zu sein, aufweisen.
Absstract of: DE102024116903A1
Die Erfindung betrifft ein, insbesondere computerimplementiertes, Verfahren zum Steuern eines Ladevorgangs einer Batterie eines Fahrzeugs, insbesondere Hybridfahrzeug oder Elektrofahrzeug, aufweisend: (i) Ermitteln eines aktuellen Ladezustands der Batterie; (ii) Durchführen eines ersten Ladevorgangs zum Laden der Batterie von dem aktuellen Ladezustand bis zu einem ersten Ladezustand von im Wesentlichen 80%, wenn der aktuelle Ladezustand um wenigstens einen vorgegeben Wert, insbesondere wenigstens 5%, kleiner als 80% ist; (iii) Ermitteln einer Mobilitätscharakteristik des Fahrzeugs unter Verwendung von charakterisierenden Merkmalen von zeitlich früheren Fahrzeugbewegungen innerhalb eines vorgegebenen vorangehenden Zeitraums; (iv) Schätzen eines zeitlich nächsten Abfahrtszeitpunkts des Fahrzeugs, der zeitlich nach dem ersten Ladevorgang liegt, unter Verwendung der ermittelten Mobilitätscharakteristik; (v) Ermitteln eines erforderlichen Zeitraums für das Durchführen eines zweiten Ladevorgangs der Batterie ausgehend von dem Ladezustand nach dem ersten Ladevorgang bis zu einem Ladezustand von im Wesentlichen 100%; (vi) Schätzen eines Ladestartzeitpunkts für den Start des zweiten Ladevorgangs, unter Berücksichtigung des ermittelten Zeitraums für den zweiten Ladevorgang und des geschätzten Abfahrtszeitpunkts, derart, dass der zweite Ladevorgang zum geschätzten Abfahrtszeitpunkt beendet ist; Durchführen des zweiten Ladevorgangs, wobei der zweite Ladevorgang zum geschä
Absstract of: DE102025122559A1
Eine Festkörperbatterie im Sinne der vorliegenden Offenbarung umfasst einen Elektrodenkörper und Stromsammlerstreifen, die mit dem Elektrodenkörper verbunden sind. Der Elektrodenkörper hat einen Positivelektrodenstromsammler, eine Positivelektrodenaktivmateriallage, eine Festelektrolytlage, eine Negativelektrodenaktivmateriallage und einen Negativelektrodenstromsammler, die entlang einer Laminierungsrichtung laminiert sind. Die Festelektrolytlage enthält eine Abstützung. Die Festelektrolytlage hat vorstehende Teile, die relativ zu den Endflächen der Positivelektrodenaktivmateriallage und der Negativelektrodenaktivmateriallage vorstehen. Die vorstehenden Teile sind so angeordnet, dass sie eine Endfläche der Positivelektrodenaktivmateriallage und/oder der Negativelektrodenaktivmateriallage abdecken.
Absstract of: DE102024122335A1
Eine prismatische Batteriezelle umfasst einen Batteriebehälter, der ein Innenvolumen definiert. Der Batteriebehälter umfasst eine erste Seite, eine der ersten Seite gegenüberliegende zweite Seite, einen unteren Abschnitt, einen dem unteren Abschnitt gegenüberliegenden oberen Abdeckungsabschnitt und mindestens zwei Elektrodenstapel. Der obere Abdeckungsabschnitt umfasst einen Anodenanschluss und einen Kathodenanschluss. Der Anodenanschluss und der Kathodenanschluss erstrecken sich jeweils durch den oberen Abdeckungsabschnitt des Batteriebehälters. Jeder der mindestens zwei Elektrodenstapel umfasst einen ersten Elektrodenstapel und einen zweiten Elektrodenstapel, die beide innerhalb des durch den Batteriebehälter definierten Innenvolumens in einer vertikal gestapelten Anordnung angeordnet sind. Zwischen dem ersten und dem zweiten Elektrodenstapel kann eine Wärmebarriereplatte angeordnet sein.
Absstract of: WO2025257676A1
Provided is a light-curable composition useful as potting compositions in battery assemblies. The composition comprises, optionally, one or more monofunctional (meth)acrylate monomers, a crosslinker selected from multifunctional oligomeric (meth)acrylates, aliphatic urethane (meth)acrylates, aromatic urethane (meth)acrylates, polyester (meth)acrylates, and epoxy (meth)acrylates, one or more adhesion promoters selected from glycidyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate acid phosphate, phosphonate ester-containing (meth)acrylic monomer, phosphate ester-containing (meth)acrylic monomer, silane, and (meth)acrylic acid. The composition further includes a photoinitiator, a flame retardant, and one or more hollow fillers.
Absstract of: DE102024117044A1
Die vorliegende Erfindung betrifft ein Verfahren zum Befüllen eines Hohlraumes mit einem Gapfiller, bei dem der Gapfiller (13) zu einem ersten Teil mit einer Gapfiller-Matrix und zu einem zweiten Teil mit in der Gapfiller-Matrix eingemischten elektrisch isolierenden, ferromagnetischen und gegenüber der Gapfiller-Matrix chemisch inerten Partikeln (14) gebildet wird, bei dem der Hohlraum an einem Einfüllpunkt (12) mit dem Gapfiller (13) befüllt wird, bei dem mindestens ein auf mindestens eine geometrische Struktur (15) des Hohlraumes einwirkendes Magnetfeld dergestalt angelegt wird, dass die magnetischen Feldlinien vorrangig parallel zu einer gedachten Verbindungslinie zwischen dem Einfüllpunkt (12) und der geometrischen Struktur (15) verlaufen, wodurch die von dem mindestens einen Magnetfeld angezogenen Partikel (14) zusammen mit der Gapfiller-Matrix in die geometrische Struktur (15) einströmen.
Absstract of: DE102024116664A1
Die Erfindung betrifft ein Batteriemodul (1), aufweisend Batteriezellen (2) und ein Batteriemanagementsystem (3) zur Bestimmung des Funktionszustands der Batteriezellen (2). Erfindungsgemäß ist vorgesehen, dass einer jeweiligen der Batteriezellen (2) ein überbrückbarer Strommesswiderstand (8) zur Bestimmung des aktuellen Zellenstroms der Batteriezelle (2) zugeordnet ist.
Absstract of: DE102024117027A1
Ein modulares elektrochemisches Energiespeichersystem weist eine Mehrzahl von Modulen auf. Dazu gehören: zumindest ein Energiespeichermodul, das zur elektrochemischen Speicherung von Energie konfiguriert ist und ein erstes Gehäuse einer ersten Gehäusebauart aufweist; und zumindest ein Steuerungsmodul, das als Wechselrichter- und Steuerungseinheit zur zumindest anteiligen Steuerung des Energiespeichersystems konfiguriert ist und ein zweites Gehäuse einer zweiten Gehäusebauart aufweist. Das erste Gehäuse und das zweite Gehäuse weisen jeweils an ihren Gehäuseoberseiten und Gehäuseunterseiten zumindest je eine Gehäuseöffnung auf. Dabei ist eine Mehrzahl von Modulen unabhängig von ihrer Gehäusebauart vertikal derart übereinander stapelbar, dass dann bei je zwei im Stapel vertikal benachbarten Modulen eine Gehäuseöffnung an der Gehäuseunterseite des oberen der beiden Module mit einer Gehäuseöffnung an der Gehäuseoberseite des unteren der beiden Module derart überlappt, dass durch diese überlappenden Gehäuseöffnungen eine vertikale Leitungsführung zum leitungsgebundenen Anschluss eines im Stapel (unmittelbar oder mittelbar) oberhalb des unteren der beiden Module liegenden Moduls ermöglicht ist. Bei dem Anschluss kann es sich insbesondere um einen elektrischen und/oder einen hydraulischen Anschluss handeln.
Absstract of: DE102024116942A1
Die Erfindung betrifft eine Vorrichtung zur automatischen optischen Inspektion eines entlang einer Transportstrecke bewegten bahnförmigen oder bogenförmigen mindestens eine Beschichtung aufweisenden Produktes, aufweisend eine Zeilenkamera, eine erste Beleuchtungseinrichtung und eine zweite Beleuchtungseinrichtung, wobei die Transportstrecke einen Erfassungsbereich der Zeilenkamera durchquert, wobei die Zeilenkamera zwischen der ersten und der zweiten Beleuchtungseinrichtung angeordnet ist, wobei ein Zentralstrahl der von der ersten Beleuchtungseinrichtung emittierten Strahlung und ein Zentralstrahl der von der zweiten Beleuchtungseinrichtung emittierten Strahlung auf einer Oberfläche der betreffenden Beschichtung einen gemeinsamen Auftreffpunkt haben, wobei der Zentralstrahl der ersten Beleuchtungseinrichtung zu einer auf dem Auftreffpunkt stehenden Normalen einen Winkel im Bereich zwischen 10° und 30° und der Zentralstrahl der zweiten Beleuchtungseinrichtung zu der Normalen einen Winkel im Bereich zwischen 45° und 70° bilden, wobei ein zwischen einem auf die Zeilenkamera gerichteten Reflexionsstrahl und der Normalen ausgebildeter Winkel und der zwischen dem Zentralstrahl der ersten Beleuchtungseinrichtung und der Normalen ausgebildete Winkel symmetrisch zu der Normalen angeordnet sind.
Absstract of: WO2025257670A1
Provided herein is an electrolyte composition for a lithium-ion battery, the composition comprising: (a) 18-35 wt% of lithium salt; (b) 1-25 wt% of solvent additive; and (c) 45-80 wt% of solvent. The total amount of (a), (b) and (c) is less than or equal to 100 wt% of the electrolyte composition. The lithium salt comprises lithium bis(fluorosulfonyl)imide (LiFSI) and lithium 4,5-dicyano-2-(trifluoromethyl)imidazole (LiTDI). The solvent additive comprises one or more fluorinated and/or unsaturated carbonate compounds. The solvent comprises a cyclic carbonate and a linear carbonate. Also provided is an electrochemical cell comprising the electrolyte composition, an electrochemical energy storage device comprising the electrochemical cell, and uses associated with the electrolyte composition.
Absstract of: DE102024117150A1
Die Erfindung betrifft ein Verfahren zum Übertragen einer physikalischen Messgröße (T) einer Batterie (10), insbesondere eines Fahrzeugs (200), aufweisend:- Messen (110), durch einen Sensor (21) einer Batterie (10), eines Messwerts (M1) der für eine physikalische Messgröße (T) der Batterie (10) spezifisch ist,- Umwandeln (120), durch den Sensor (21), des Messwerts (M1) in ein optisches Signal (S),- Übertragen (130) des optischen Signals (S) von dem Sensor (21) über eine optische Leitung (30) an eine Steuereinheit (CMS),- Ermitteln (140), durch die Steuereinheit (CMS), der physikalischen Messgröße (T) in Abhängigkeit von dem optischen Signal (S).Weiterhin betrifft die Erfindung ein Computerprogrammprodukt, einen computerlesbaren Datenträger, eine Steuereinheit (CMS) und ein Fahrzeug (200).
Absstract of: DE102024116709A1
Die Erfindung betrifft einen Hochvoltspeicher (10) für ein Kraftfahrzeug, aufweisend ein Gehäuse (11) und wenigstens eine in dem Gehäuse (11) aufgenommene Batterierundzelle (13), wobei die wenigstens eine Batterierundzelle (13) eine dem Gehäuse (11) zugewandte Entgasungs-öffnung (14) aufweist und das Gehäuse (11) wenigstens ein Strukturelement (12) aufweist.
Absstract of: DE102025120774A1
Eine Positivelektrode weist einen Positivelektroden-Stromkollektor und eine Positivelektroden-Aktivmaterialschicht auf. Der Positivelektroden-Stromkollektor erstreckt sich sowohl in Längsrichtung als auch in Breitenrichtung. Die Positivelektroden-Aktivmaterialschicht weist ein Positivelektroden-Aktivmaterial und ein Positivelektroden-Bindemittel auf und ist auf dem Positivelektroden-Stromkollektor aufgeschichtet. Die Positivelektroden-Aktivmaterialschicht weist einen ersten dünnen Teil und einen ersten dicken Teil auf. Der erste dicke Teil hat eine Dicke, die größer ist als die Dicke des ersten dünnen Teils, und grenzt in Längsrichtung an den ersten dünnen Teil. Das Verhältnis des Anteils des Positivelektroden-Bindemittels zum Anteil des Positivelektroden-Aktivmaterials im ersten dünnen Teil ist geringer als im ersten dicken Teil.
Absstract of: DE102024117040A1
Die Erfindung betrifft eine Elektrode (10, 10') für eine Batteriezelle (28), umfassend einen ein elektrisch leitendes Material aufweisenden Stromleiter (12, 12') mit mindestens einer Kontaktoberfläche (14, 14') zum Bilden eines Kontakts zwischen dem Stromleiter (12, 12') und einem batteriechemischen Medium (16, 16'). Der Stromleiter (12, 12') weist im Bereich der mindestens einen Kontaktoberfläche (14, 14') eine Kontaktstruktur zur Verbesserung des Kontakts zwischen dem Stromleiter (12, 12') und dem batteriechemischen Medium (16, 16') auf. Mit der Elektrode (10, 10') kann die Performance von Batterien mit hoher Energiedichte verbessert und deren Lebensdauer verbessert werden.
Absstract of: DE102025107072A1
Ein ECU ist eine Steuervorrichtung für ein Stromspeichersystem. Das Stromspeichersystem umfasst eine Batteriezelle, einen Temperatursensor und eine Kühl- und Temperaturerhöhungsvorrichtung. Das Steuergerät enthält eine CPU. Die CPU ermittelt einen geschätzten Maximalwert des Temperaturunterschieds zwischen der erfassten Temperatur und der Elektrodentemperatur der Batteriezelle, und eine geschätzte erforderliche Zeitspanne, die der Temperaturunterschied benötigt, um den Maximalwert zu erreichen. Wenn eine Temperaturerhöhungsdauer die geschätzte erforderliche Zeitspanne überschreitet, verringert die CPU einen Temperaturunterschied-Schätzwert des Temperaturunterschieds zwischen der vom Temperatursensor erfassten Temperatur und der Elektrodentemperatur, während die Temperaturerhöhung fortgesetzt wird, um einen Elektrodentemperatur-Schätzwert der Batteriezelle zu erhöhen und einen dem Elektrodentemperatur-Schätzwert entsprechenden Grenzwert des elektrischen Ladestroms der Batteriezelle zu erhöhen.
Absstract of: WO2025257659A1
Provided herein is an electrolyte composition for a lithium-ion battery, the composition comprising: (a) 18-35 wt% of lithium salt; (b) 1-25 wt% of solvent additive; and (c) 45-80 wt% of solvent. The total amount of (a), (b) and (c) is less than or equal to 100 wt% of the electrolyte composition. The lithium salt comprises lithium bis(fluorosulfonyl)imide (LiFSI), lithium 4,5-dicyano-2-(trifluoromethyl)imidazole (LiTDI) and lithium difluoro(oxalato)borate (LiDFOB). The solvent additive comprises one or more fluorinated and/or unsaturated carbonate compounds. The solvent comprises a cyclic carbonate. Also provided is an electrochemical cell comprising the electrolyte composition, an electrochemical energy storage device comprising the electrochemical cell, and uses associated with the electrolyte composition.
Absstract of: DE102025122852A1
Zur Bereitstellung einer zylindrischen Batterie, die ein Sicherheitsventil aufweist, das geeignet ist, eine unbeabsichtigte Stromunterbrechung und Wiederleitfähigkeit nach einer Stromunterbrechung im Falle einer Batterieabnormalität geeignet zu unterdrücken. Eine zylindrische Batterie, die eine obere Abdeckung und ein Sicherheitsventil aufweist, wobei das Sicherheitsventil eine Sicherheitsabdeckung und eine Abreißscheibe aufweist, die in einer Batterieaxialrichtung nach innen von der Sicherheitsabdeckung angeordnet ist, und ein vorbestimmter Abschnitt der Sicherheitsabdeckung, der zwischen einem Abschnitt, an dem die Sicherheitsabdeckung und die obere Abdeckung miteinander in Kontakt sind, und einem Abschnitt, an dem die Sicherheitsabdeckung und die Abreißscheibe miteinander in Kontakt sind, angeordnet ist, ein geneigter Abschnitt ist, der in einer Batterieaxialrichtung nach innen geneigt ist in Bezug auf eine Kontaktfläche, an der die Sicherheitsabdeckung und die obere Abdeckung miteinander in Kontakt sind.
Absstract of: DE102025144914A1
Die Erfindung betrifft eine Vorrichtung (1) zur Verringerung einer Ausbreitung eines thermischen Durchgehens innerhalb eines Gehäuses (4) eines elektrischen Energiespeichers (2) eines Fahrzeuges mit einer elektrischen Antriebseinheit, wobei das Gehäuse (4) eine im Normalbetrieb geschlossene Berstöffnung (O) aufweist. Erfindungsgemäß ist vorgesehen, dass die Berstöffnung (O) mit einem Einlass (E) einer außerhalb des Gehäuses (4) angeordneten Leitung (6) zur Aufnahme eines über die Berstöffnung (O) nach außerhalb des Gehäuses (4) strömenden Ventinggases (V) im Fall eines innerhalb des Gehäuses (4) auftretenden thermischen Ereignisses fluidisch gekoppelt ist, ein gegenüberliegender Auslass (A) der Leitung (6) an einer zu der Berstöffnung (O) beabstandeten Öffnung des Gehäuses (4) zur Rückführung des Ventinggases (V) in das Gehäuse (4) mündet, wobei in einen Leitungsabschnitt zwischen der Berstöffnung (O) und der Öffnung des Gehäuses (4) ein Oxidationskatalysator (7) zur Umwandlung von in dem Ventinggas (V) enthaltenem Kohlenstoffmonoxid in Kohlenstoffdioxid integriert ist und dem Oxidationskatalysator (7) nachgelagert eine Kühleinheit (8) in den Leitungsabschnitt zur Verringerung einer Temperatur des in das Gehäuse (4) rückgeführten Ventinggases (V) integriert ist.
Absstract of: DE102024116842A1
Ein Akkupack (1) für ein Elektrogerät weist eine Pouch-Zelle (2, 2') und ein Wärmeableitelement (3, 3') auf, das auf einer Seite der Pouch-Zelle (2, 2') zur Ableitung von durch die Pouch-Zelle (2, 2') erzeugter Wärme angeordnet ist, sowie eine Glimmerplatte (4, 4', 6, 6'), die zwischen der Pouch-Zelle (2, 2') und dem Wärmeableitelement (3, 3') angeordnet ist.
Absstract of: DE102025122587A1
Eine Festkörperbatterie nach der vorliegenden Offenbarung umfasst einen Elektrodenkörper, Stromsammellaschen, die mit dem Elektrodenkörper verbunden sind, und ein Schutzelement. Der Elektrodenkörper hat einen Positivelektrodenstromsammler, eine Positivelektrodenaktivmaterialschicht, eine Festelektrolytschicht, eine Negativelektrodenaktivmaterialschicht und einen Negativelektrodenstromsammler, die entlang einer Laminierrichtung laminiert sind. Die Festelektrolytschicht hat eine Stützeinrichtung, die eine Vielzahl von Fasern umfasst, die sich im Material vom Schutzelement unterscheiden. Die Stützeinrichtung steht von einer Endfläche der Festelektrolytschicht vor. Das Schutzelement ist mit der Stützeinrichtung verbunden und an der Endfläche angeordnet.
Absstract of: DE102024117001A1
Die vorliegende Erfindung betrifft ein Verfahren zur Folierung von Batteriezellen mittels einer Foliereinrichtung. Weiterhin betrifft die vorliegende Erfindung eine gemäß diesem Verfahren erhaltene oder erhältliche, mit einer Klebefolie ummantelte Batteriezelle.
Absstract of: WO2025257651A1
The invention relates to an electric cell (1) comprising: - a sealed flexible pouch (2); - a plurality of positive and negative electrodes (3, 4) separated from one another by a porous separator film (5) so as to form a stack (6) of electrodes, wherein the stack (6) of electrodes is contained in the flexible pouch (2); - an electrolyte arranged in the flexible pouch (2); - a first terminal (7) connected to the positive electrodes (3) and a second terminal connected to the negative electrodes (4), wherein the first and second terminals project from the flexible pouch (2), and wherein the cell (1) comprises a rigid outer shell (9) in which the flexible pouch (2) is arranged, wherein the outer shell (9) comprises: - a first metal portion (10) connected to the first terminal (7); and - a second metal portion (11) connected to the second terminal.
Absstract of: WO2025256816A1
The invention proposes a method for determining a calendrical capacity loss ΔQ of a battery cell over a defined time range. The method is at least characterized by the following steps: - (S1) providing a first state of charge SOC1 at a start of the time range; - (S2) determining a second state of charge SOC2 at an end of the time range; - (S3) providing a state-of-charge-dependent expansion characteristic curve DSOC(SOC) (40); - (S4) providing an expansion characteristic curve Dl oss (ΔQ) (41) which is dependent on the capacity loss ΔQ; - (S5) detecting a change in expansion ΔD (42) of the battery cell between the start and end of the time range; and - (S6) determining the capacity loss ΔQ by means of the relationship ΔD = DSOC (SOC2) - DSOC(SOC1) + Dloss(ΔQ). The invention also relates to a production method for a battery cell.
Absstract of: DE102024116814A1
Die Erfindung betrifft ein Diagnoseverfahren (10) zur Ermittlung eines sich über die Alterung ändernden Leistungszustandes einer Batteriezelle (3) eines Fahrzeugs (1), aufweisend die Schritte:- Anregen (11) der Batteriezelle (3) mit einem ersten Diagnosestromsignal (24) zur Erzeugung eines ersten Antwortsignals (12) der Batteriezelle innerhalb eines Entladevorgangs (20) und/oder während der Fahrt (20),- Erfassen (13) des ersten Antwortsignals (12) während des Entladevorgangs (20) und/oder während der Fahrt (20), gekennzeichnet durch- Anregen (14) der Batteriezelle (3) mit einem zweiten Diagnosestromsignal (34) zur Erzeugung eines zweiten Antwortsignals (15) der Batteriezelle (3) vor einer Ladephase (35) der Batteriezelle (3), während einer Ladephase (35) der Batteriezelle (3) und/oder in einem Stillstand (30) des Fahrzeugs (1),- Erfassen (16) des zweiten Antwortsignals (15) im Stillstand (30), wobei das Erfassen (14) des zweiten Antwortsignals (15) bei einem gleichen Ladezustand (SOC) wie das Erfassen (13) des ersten Antwortsignals (12) erfolgt, und- Bestimmen (17), insbesondere Berechnen unter Verwendung eines Ersatzschaltbildes (50), des Leistungszustandes mit dem ersten Antwortsignal (12) und dem zweiten Antwortsignal (15).
Absstract of: WO2025259349A1
A lithium-ion cell and a method of regenerating the capacity of the cell in order to extend the cycling life of the cell. The lithium-ion cell includes an anode having a negative electrode with one or more anode active materials and at least one anode binder material; and a cathode having a positive electrode with one or more cathode active materials, at least one carbon additive, at least one cathode binder material, and at least one lithium additive. The lithium-ion cell, which has an initial capacity and maximum voltage, is configured for regeneration once the initial capacity decays to a capacity level that is < 95% of the initial capacity. The regeneration includes the oxidation of the lithium additive by charging the cell to a higher voltage than the maximum voltage, thereby, increasing the capacity level and extending the useful cycling life of the lithium-ion cell.
Absstract of: DE102024116759A1
Die Erfindung betrifft ein Verfahren zum Erzeugen einer Kanalstruktur (12) in einem Gehäuse einer Wärmetauschereinheit (20). Dabei wird eine zur Kanalstruktur (12) geometrisch korrespondierende Kernstruktur (10) aus einem pulverförmigen und/oder granularem Material (14) und einem Bindemittel (16) erzeugt, das Gehäuse (24) der Wärmetauschereinheit (20) derart ausgebildet, dass die Kernstruktur (10) in einem Inneren (34) des Gehäuses (24) eingeschlossen ist und mindestens eine Zugangsöffnung (30) in der Wärmetauschereinheit (20) zwischen einer Umgebung und dem Inneren (34) der Wärmetauschereinheit (20) bereitgestellt ist und die Kernstruktur (10) durch Zerkleinern und/oder Verflüssigen verändert und die veränderte Kernstruktur (10) aus dem Inneren (34) durch die mindestens eine Zugangsöffnung (30) entfernt.
Absstract of: DE102024117049A1
Sicherheitssystem (1) für eine Batterieeinrichtung (2) für ein wenigstens teilweise elektrisch angetriebenes Kraftfahrzeug (10) mit einem Störfallüberwachungssystem (3) zur Erkennung eines thermischen Durchgehens einer Batterieeinheit (12) der Batterieeinrichtung (2). Dabei erkennt das Störfallüberwachungssystem (3) das thermische Durchgehen aufgrund eines mittels einer Auslöseeinheit (4) provozierten Isolationsfehlers. Die Auslöseeinheit (4) provoziert den Isolationsfehler mittels wenigstens einer Kontaktstruktur (14), welche durch die Wärmeeinwirkung des thermischen Durchgehens ihre Form definiert ändert und dadurch einen Kontakt zwischen wenigstens zwei im Normalbetrieb voneinander isolierten Batteriekomponenten (5, 15) herstellt.
Absstract of: DE102024116389A1
Die Erfindung betrifft eine Hitzeschutzeinrichtung (11) für Batteriezellen (21, 22) eines Hochvoltspeichers (10), aufweisend wenigstens ein zwischen zwei Batteriezellen (21, 22) anordenbares Hitzeschutzelement, wobei das Hitzeschutzelement (13, 14) mittels wenigstens einer Halteeinrichtung (23) der Hitzeschutzeinrichtung (11) zwischen den Batteriezellen (21, 22) gelagert ist.
Absstract of: WO2025259770A1
A solution and method for reduction of the deleterious effects of the impurities in secondary lead in batteries is disclosed. The solution comprises: a housing, a battery cell positioned within the housing having a lead, an acid within the housing, a chemical impurity in the lead, and a motivator within the housing and in coupled to the chemical impurity. The impurity may be one of copper, silver and bismuth. The method comprises integrating the motivator into the battery. The integration may comprise adding the motivator to the electrolyte in the housing. The method may comprise application of the motivator to various other aspects of the battery.
Absstract of: WO2025257105A1
The disclosure relates to a method of recycling metals of a battery, wherein the battery comprises cyano-based material such as Prussian Blue Analogs. The method uses alkaline leaching, physical separation and subsequent evaporation to recover high value components from the battery.
Absstract of: US2025385533A1
A battery pack includes a set of blocks of battery cells, where each of the blocks is connected in series, and a set of AC impedance circuits, where each of the AC impedance circuits is electrically connected to at least one of the blocks of battery cells in the set of blocks of battery cells to apply an AC excitation signal to the at least one of the blocks in the set of blocks. The battery pack includes a controller configured to: calculate an impedance value for each of the at least one of the blocks of battery cells based on the AC excitation signal applied to each of the at least one of the blocks of battery cells, and adjust a parameter of the battery pack based on the calculated impedance value for each of the at least one of the blocks of battery cells.
Absstract of: DE102025122967A1
Eine Leistungsspeichervorrichtung (10) umfasst: einen ersten Leistungsspeicherstapel (11) mit einer Vielzahl von Leistungsspeicherzellen (100); einen zweiten Leistungsspeicherstapel (12) mit einer Vielzahl von Leistungsspeicherzellen (100); und eine Trennwand (240), die den ersten und den zweiten Leistungsspeicherstapel voneinander trennt. Die Leistungsspeicherzellen (100) umfassen jeweils einen Zellenhauptkörper (110) und einen externen Anschluss (120). Die Trennwand (240) umfasst: einen oberen Trennabschnitt (241), der sich an einer höheren Position als der externe Anschluss befindet; einen unteren Trennabschnitt (242), der sich an einer niedrigeren Position als der externe Anschluss befindet; und einen Verbindungsabschnitt (243), der sich zwischen einem Paar der externen Anschlüsse (120) befindet, die in der zweiten Richtung aneinandergrenzen, und der den oberen und den unteren Trennabschnitt miteinander verbindet. Eine Breite des Verbindungsabschnitts (243) ist kleiner als eine Breite des oberen Trennabschnitts (241) und eine Breite des unteren Trennabschnitts (242).
Absstract of: DE102024205424A1
Die Erfindung betrifft ein Thermomodul (TM) für ein Flüssigkeitskreis(lauf)system (6) eines Elektrofahrzeugs.Dabei sind an ein Gehäuse des Thermomoduls (TM) wenigstens eine Wärmequelle und wenigstens eine Wärmesenke über zugeordnete mit dem Gehäuse verbindbare Flüssigkeitsleitungen anschließbar.Durch das Gehäuse sind dabei wenigstens eine erste elektrische Flüssigkeitspumpe (EWP1) zur Förderung von Flüssigkeit in einem Flüssigkeitskühlkreis(lauf) (KK) sowie wenigstens eine zweite elektrische Flüssigkeitspumpe (EWP2) zur Förderung von Flüssigkeit im Flüssigkeitsheizkreis(lauf) (HK) und ein Ventilsystem aufgenommen.Das Ventilsystem ist dabei in einzelne Heizmodi (ein)stellbar, in welchen die Flüssigkeit des Flüssigkeitsheizkreis(lauf)s (HK) wahlweise über wenigstens einen ersten Wärmetauscher (12) zum Heizen einer Fahrzeugkabine und / oder wenigstens eine Batterie (B) führbar ist.Die Erfindung betrifft zudem ein ein indirektes Wärmetransportmittelkreis(lauf)system und ein Elektrofahrzeug.
Absstract of: DE102024117039A1
Die Erfindung betrifft Kühlgehäuse für Akkumulatoren in einem Kraftfahrzeug, umfassend, einen Deckel, eine Bodenplatte, eine erste Seitenwand, eine zweite Seitenwand und eine Rückwand, wodurch ein Aufnahmeraum für die Akkumulatoren gebildet ist, wobei das Kühlgehäuse weiterhin zumindest eine Innenwand umfasst, wobei der Aufnahmeraum durch die zumindest eine Innenwand in zwei Einschubfächer geteilt ist, und wobei jedes der zwei Einschubfächer dazu ausgebildet ist jeweils einen Akkumulator aufzunehmen, wobei die zumindest eine Innenwand als Plattenkühler ausgebildet ist.
Absstract of: DE102024117043A1
Die vorliegende Erfindung betrifft eine Batteriezellanordnung (100) umfassend eine Batteriezelle (1) mit einer flexiblen Zellhülle (1.1) und eine Einstecheinrichtung (2), die eingerichtet ist, die flexible Zellhülle (1.1) bei Erreichen einer definierten Ausdehnung der Batteriezelle (1) einzustechen.
Absstract of: DE102024123306A1
Ein fluorierter Gelpolymerelektrolyt für eine Fahrzeugbatteriezelle, eine Batteriezelle und ein Verfahren zur Herstellung eines fluorierten Gelpolymerelektrolyten. Der fluorierte Gelpolymerelektrolyt umfasst einen polymerisierten Gelpolymerelektrolyt-Vorläufer. Der Gelpolymerelektrolyt ist bei bis zu 150 Grad Celsius nicht flüchtig. Der Gelpolymerelektrolyt-Vorläufer enthält ein Lithiumsalz, das im Bereich von 10 bis 50 Gewichtsprozent des Gesamtgewichts des Gelpolymerelektrolyt-Vorläufers vorliegt, ein fluoriertes Monomer, das im Bereich von 10 bis 50 Gewichtsprozent des Gesamtgewichts des Gelpolymerelektrolyt-Vorläufers vorliegt, und ein nichtwässriges organisches Lösungsmittel, das im Bereich von 50 bis 90 Gewichtsprozent des Gesamtgewichts des Gelpolymerelektrolyt-Vorläufers vorliegt.
Absstract of: WO2025257871A1
The apparatus for feeding lids to the terminals of devices for storing electrical energy, such as electric batteries in particular, comprises a pair of handling members (2) adapted to transport a respective plurality of containers (3) step-by-step along relative feed directions (A, A'). Each container (3) is configured to contain a stack of a plurality of lids, each of which can be associated with a terminal of a cylindrical battery, and has, at least at one end, an opening (30) for collecting said lids. Downstream of said handling members (2) there are arranged a pair of gripping members (6), each gripping member (6) being operable in a gripping configuration to lock a container (3) transported to a collecting position (100) by said handling members (2). Collecting means (18) are adapted to collect one lid at a time from each container (3) and transport it to transport means (19) arranged downstream of said handling members (2), in order to transport said lids to a device for feeding cylindrical batteries.
Absstract of: WO2025259977A1
An example of an aerogel composite sheet stack includes a first sub-set, which includes at least one first sheet; a second sub-set, which includes at least one second sheet; an at least temporary attachment layer positioned in at least a portion of an interface between the first sub-set and the second sub-set, the at least temporary attachment layer being selected from the group consisting of: a release sheet; a thermoplastic film at least partially infiltrating pores of each of the at least one first sheet and the at least one second sheet, an adhesive positioned at an edge or a perimeter of the interface, and combinations thereof; and an aerogel material surrounding each of the first sub-set, the second sub-set, and the at least temporary attachment layer.
Absstract of: WO2025257870A1
The apparatus for winding a stack of electrodes is associated with a machine for manufacturing electrical energy storage devices of the type comprising a stack of electrodes formed by folding a flexible strip (2) comprising at least one separator element (20) and a series of anode and cathode elements, applied alternately on said separator element (20). The apparatus comprises means (5) for accumulating a head portion of the separator strip (20) intended to wind the stack of electrodes (10) at the end of the formation of the stack of electrodes (10) on a stacking plane (4). Means (6) for gripping and transferring the stack of electrodes (10) formed on the stacking plane (4) are movable between a first position for gripping the stack of electrodes (10) at said stacking plane (4) and a second position for transferring the same stack of electrodes (10) to winding means (7). The winding means (7) comprise a rotatable member (70) configured to receive the stack of electrodes (10) at the winding station and to be rotated to wind said head portion of the separator strip (20) onto the stack of electrodes (10).
Absstract of: WO2025257073A1
The present invention relates to a process to manufacture sodium chloride comprising at least the steps: c) reacting calcium chloride with a sodium sulfate-containing material, whereby the sodium sulfate-containing material originates from i) a recycling of batteries or ii) a manufacturing of cathode active material (CAM) and precursor cathode active material (PCAM) for batteries, or iii) a production of Li, Co, Mn, or Ni, and wherein the sodium sulfate-containing material comprises on a dry basis at least 80 wt.-% sodium sulfate and at least 0.5 mg of at least one element X selected in the list consisting of: Co, F, Li, Mn, Ni, P and mixtures thereof, expressed per kg of sodium sulfate-containing material, and wherein reacting the calcium chloride with the sodium sulfate-containing material is done in an aqueous solution at a pH of at least 5 and produces sodium chloride in the aqueous solution and calcium sulfate in solid form, and c1) at least part of the sodium chloride in the aqueous solution is separated from the calcium sulfate in solid form.
Absstract of: WO2025257367A1
The invention relates to a battery which comprises an outer casing delimiting: - a lower compartment accommodating a first group of battery modules, the lower compartment comprising a lower module-cooling plate provided with a lower circuit for the passage of a cooling liquid, and - an upper compartment, arranged above the lower compartment and accommodating a second group of battery modules, the upper compartment comprising an upper module-cooling plate provided with an upper circuit for the passage of cooling liquid. The outer casing comprises: - a first lower port (44) connected to the lower cooling circuit (42), - a first upper port (54) connected to the upper cooling circuit (52), and the battery has an external connecting pipe, referred to as first external pipe (74), connecting the first lower port (44) and the first upper port (54).
Absstract of: DE102024116714A1
Die Erfindung betrifft eine Deformationseinrichtung (11) zur Anordnung in einem Hochvoltspeicher (10), wobei die Deformationseinrichtung (11) eine Grundplatte (51) und wenigstens ein an der Grundplatte (51) angeordnetes Deformationselement (21) aufweist, wobei das Deformationselement (21) eingerichtet ist, einen Hohlraum (31) auszubilden, welcher eingerichtet ist wenigstens bereichsweise eine mechanische und/ oder thermische Entkopplung zwischen wenigstens einer Batteriezelle (12) des Hochvoltspeichers (10) und einem die wenigstens eine Batteriezelle (12) wenigstens teilweise umgebenden Strukturmedium (14) bereitzustellen.
Absstract of: DE102024205521A1
Ein Energiespeichersystem umfasst wenigstens eine Kassette (1), die wenigstens einen Akkumulator enthält, Kontaktelemente, die es erlauben, die eine Kassette mit anderen, äußerlich gleichen Kassetten variabel elektrisch zu verbinden, und ein Gestell (24), in dem Einbauplätze (45) für Kassetten (1; 1a, 1b, 1c) definiert sind, in die die Kassette in einer Einführrichtung einführbar und entgegen der Einführrichtung entnehmbar ist. Die Kontaktelemente umfassen eine den Einbauplätzen gemeinsame, quer zur Einführrichtung orientierte Stromschiene (27) zum Laden und Entladen des wenigstens einen in der Kassette (1) enthaltenen Akkumulators. An einer der Stromschiene zugewandten Rückseite weist die Kassette (1) einen in Kontakt mit der Stromschiene (27) elastisch auslenkbaren Anschluss (11) auf. Verriegelungsmittel (50, 51, 54, 56, 60 sind) vorgesehen, um die Kassette (1) im Gestell (24) in einer Betriebsstellung lösbar zu fixieren, in der der Anschluss (11) an der Stromschiene (27) elastisch ausgelenkt ist.
Absstract of: DE102024116614A1
Die Erfindung betrifft ein Servicegerät zum Ablassen und Auffüllen eines dielektrischen Temperierkreislaufs eines Kraftfahrzeugs, aufweisend zumindest die folgenden Komponenten:- einen Reinigungskreislauf mit einem Auffangbehälter, einem Feuchtesensor und einem Wasserabscheider;- einen Reinbehälter;- einen in fluidischer Verbindung mit dem Auffangbehälter stehenden Ablassanschluss;- einen in fluidischer Verbindung mit dem Reinbehälter stehenden Auffüllanschluss; und- ein Schaltventil zum Schalten zwischen einem fluidisch geschlossenen Reinigungskreislauf und einer Ableitung aus dem Reinigungskreislauf in den Reinbehälter;wobei der Feuchtesensor stromabwärts des Wasserabscheiders in dem Reinigungskreislauf angeordnet ist, undwobei das Schaltventil entlang einer Durchströmungsrichtung zwischen dem Feuchtesensor und einem Rücklauf in den Auffangbehälter in dem Reinigungskreislauf angeordnet ist.Es ist ein Servicegerät für eine Temperierflüssigkeit eines Kraftfahrzeugs vorgeschlagen, welches ein besonders effizientes Reinigen der Temperierflüssigkeit ermöglicht.
Absstract of: DE102025123667A1
Stationärer Energiespeicher mit zumindest zwei übereinander gestapelten Batteriemodulen (3,4), wobei die Batteriemodule jeweils eine Anzahl von Zellen (18,67,69) aufweisen, und eine Ladungsausgleichseinrichtung (75) vorgesehen ist, über welche die Ladungen in zumindest in einigen der Anzahl der Zellen ausgleichbar sind. Dabei ist zwischen den zumindest zwei Batteriemodulen eine elektrische Verbindung (68) zum Ladungsaustausch bzw. Ladungsausgleich vorgesehen ist, über die ein direkter Ladungsausgleich zwischen zumindest einer ersten Zelle (69) der Zellen des ersten Batteriemoduls 4 mit zumindest einer ersten Zelle (67) der Zellen des zweiten Batteriemoduls (3) herstellbar ist.
Absstract of: WO2025257869A1
The apparatus for forming a stack of electrodes is associated with a machine for manufacturing electrical energy storage devices, of the type comprising a stack of electrodes formed by folding a flexible strip (2) comprising at least one separator element (20), a series of anode elements (21) and a series of cathode elements (22), applied alternately on said separator element (20). The apparatus comprises feed means (10) for advancing said flexible strip (2) along a feed direction (A) on a feed plane and folding means (3) suitable to be operated in a suitable step relationship to perform a series of folds orthogonal to the feed direction on said flexible strip (2) and to deposit the flexible strip (2) thus folded on a stacking plane (4). The apparatus comprises rotatable means (5) capable of being driven in continuous rotation and having distributed peripherally a plurality of devices (55, 56) for collecting and transferring said anode and cathode elements (21, 22) on the flexible strip (2) in the folding step onto the stacking plane (4).
Absstract of: WO2025259505A1
A busbar assembly (100) for electrically interconnecting a plurality of power racks (120) arranged in a rack row (120) includes first and second conductive busbars (152) extending horizontally with respect to the rack row (120). The first and second conductive busbars (152) electrically connect with first and second pluggable connectors (160) extending rearward from the rack row (120) orthogonal to the busbars. To interconnect the conductive busbars (150) and pluggable connectors (160), the busbar assembly (100) includes first and second conductive links (170) that are shaped to extend between the components. To brace the busbars in parallel, the busbar assembly (100) includes a support insulator (180) that traverses and clamps to the busbars.
Absstract of: WO2025257482A1
The invention relates to a method for determining an item of information relating to a rechargeable battery forming part of a system, wherein the battery comprises a plurality of cells and has determined first voltages across the terminals of the cells and a determined no-load voltage, and wherein the battery further has an estimated capacity obtained by dividing a quantity of ampere-hours delivered during a discharge phase or received during a charge phase by a variation in the state of charge during this discharge phase or this charge phase. This method comprises a step (10-20) of determining an item of information representative of a minimum variation in the state of charge, wherein the item of information is used to estimate the capacity with a selected degree of accuracy, and wherein the determination step is performed as a function of at least one first estimated error relating to the variation in the state of charge and a second estimated error relating to the quantity of ampere-hours.
Absstract of: DE102025144600A1
Die Erfindung betrifft eine Batteriezelle (1) mit einem Gehäuse (2), in dessen Innerem mindestens eine positive Elektrode (3) und mindestens eine negative Elektrode (4) durch mindestens eine Isolierfolie (5) getrennt voneinander in einem Elektrolyt (6) angeordnet sind, wobei die positive Elektrode (3) und die negative Elektrode (4) je einen Ableiter (7) aufweisen, wobei die Ableiter (7) jeweils über eine Leitung (8) mit einem im Inneren des Gehäuses (2) angeordneten Steuergerät (9) verbunden sind, das dazu konfiguriert ist, aus einer an den Elektroden (3, 4) anliegenden Gleichspannung eine hochfrequente Wechselspannung zu bilden und auf die Leitungen (8) aufzumodulieren, so dass diese als Antennen fungieren und elektrische Energie drahtlos nach außen senden.
Absstract of: DE102025122579A1
Eine Festkörperbatterie im Sinne der vorliegenden Offenbarung umfasst einen Elektrodenkörper und Stromsammlerstreifen, die mit dem Elektrodenkörper verbunden sind. Der Elektrodenkörper hat einen Positivelektrodenstromsammler, eine Positivelektrodenaktivmateriallage, eine Festelektrodenaktivmateriallage, eine Negativelektrodenaktivmateriallage und einen Negativelektrodenstromsammler. Die Festelektrolytlage hat eine Abstützung mit einer Vielzahl von Poren. Die Abstützung hat vorstehende Teile, die relativ zu den Endflächen der Positivelektrodenaktivmateriallage und der Negativelektrodenaktivmateriallage vorstehen. Die Anzahl der Poren in der Abstützung in den vorspringenden Teilen ist geringer als die Anzahl der Poren in der Abstützung im nicht vorspringenden Teil.
Absstract of: DE102025122842A1
Bereitgestellt ist eine zylindrische Sekundärbatterie, die ein Herausschleudern der Batterie wie ein Projektil aufgrund von Ausstoß von in der Batterie bei einer Batterieabnormalität erzeugtem Gas ausreichend verhindern kann und somit eine hervorragende Sicherheit aufweist. Eine zylindrische Sekundärbatterie, aufweisend: einen Elektrodenwickelkörper mit einer Struktur, bei der eine bandförmige Positivelektrode und eine bandförmige Negativelektrode mit einem dazwischen zwischengeordneten Separator gestapelt und gewickelt sind; eine Batteriedose, die den Elektrodenwickelkörper aufnimmt, wobei ein Endabschnitt geöffnet ist, während der Elektrodenwickelkörper aufgenommen ist; und eine Batterieabdeckung, die an dem einen Endabschnitt der Batteriedose bereitgestellt ist und zwei oder mehr Öffnungsabschnitte aufweist, wobei die zwei oder mehr Öffnungsabschnitte bei einer Drehung um mehr als 0° und weniger als 360° um eine Achse einer zylindrischen Form der Sekundärbatterie in der Draufsicht eine nicht-überlappende Form aufweisen, die sich nicht mit den zwei oder mehr Öffnungsabschnitten vor der Drehung überlappt, und die Batterieabdeckung an einer der Verbindungsstellen zwischen zwei benachbarten Öffnungsabschnitten der zwei oder mehr Öffnungsabschnitte eine Sollbruchstelle aufweist.
Absstract of: DE102025119809A1
Offenbart ist ein Batteriemodul (10), welches einen Batteriestapel (100) mit einer Mehrzahl von gestapelten Batteriezellen (110) aufweist. Das Batteriemodul (10) weist ferner ein Pad-Element (120), ein Halteelement (200), welches an einer Seite des Batteriestapels (100) vorgesehen ist, eine Stromschiene (300), welche mit dem Halteelement (200) verbunden ist und elektrisch mit dem Batteriestapel (100) verbunden ist, und eine erste leitfähige Platte (400), welche so vorgesehen ist, dass sie der Stromschiene (300) gegenüberliegt, und ein wärmeleitfähiges Material aufweist, auf. Die Mehrzahl von Batteriezellen (110) weist jeweils einen Anschlussbereich (116) auf, welcher an der Stromschiene (300) fest angebracht ist. Die ersten leitfähigen Platte (400) ist so vorgesehen, dass sie der Stromschiene (300) gegenüberliegt, wobei der Anschlussbereich (116) dazwischen angeordnet ist, und die erste leitfähige Platte (400) ist fest an dem Anschlussbereich (116) oder der Stromschiene (300) angebracht ist.
Absstract of: WO2025257019A1
The invention relates to a method for cutting an electrode strip (2) which has a substrate (4) with a coated region (6) and with an uncoated edge region (8), wherein a supporting strip (12) is arranged on the electrode strip (2) so as to run alongside in such a way that the supporting strip (12) supports the uncoated edge region (8) and projects laterally beyond the edge region (8), wherein the electrode strip (2) is laser-cut in the uncoated edge region (8) to form an arrester tab (10), and wherein the laser cutting is carried out via the supporting strip (12). The invention also relates to a device (32) for cutting the electrode strip (2).
Absstract of: WO2025257017A1
The invention relates to a method for monitoring a vehicle battery (210), having the following steps: determining (S1) at least one parameter (113, 121, 122, 123, 124, 125) of the vehicle battery (210); modelling (S4) a temperature hotspot using the at least one parameter (113, 121, 122, 123, 124, 125); providing (S5) information (131) about the modelled temperature hotspot; and transmitting (S8) the information (131) to a vehicle-external receiver (140) if a criterion is met which is based on a temperature threshold value (111) and/or a probability threshold value. The invention also relates to a corresponding control device (130) and to a computer program.
Absstract of: WO2025257311A1
A method for preparing a metal-bearing M'-hydroxide particulate material, the method comprising the steps of: (a) determining a target value (D') for a median particle diameter D50 of the material to be prepared, preferably the D' being in the range of 3-20 μm; (b) combining, during a time period (T1-T2), streams of an aqueous solution (βc) containing salts of metals Mc' and an aqueous solution (ω) containing an alkali metal hydroxide in a stirred tank reactor at a pH of 10.5-12.5, determined at 20 °C, thereby increasing the sizes of particles comprising Mc'-hydroxide in a slurry thus formed; (c) continuing step (b) until the D50 of the particles reaches approximately a value of Dc, wherein the amount of metals Mc' provided by the flow of solution (βc) during the period (T1-T2) is θc, wherein (formula I), wherein ε is a predetermined value selected from the range of 0.01-0.9; (d) providing at least a fraction Sc of the slurry obtained in step (c) either to the same or to a different stirred tank reactor, wherein 0
Absstract of: WO2025257297A1
The present invention relates to aliovalently substituted argyrodite-type solid electrolyte solid electrolytes. These solid electrolytes display and increased ionic conductivity.
Absstract of: DE102024205426A1
Die Erfindung betrifft ein Thermomodul (TM) für ein Flüssigkeitskreis(lauf)system (6) eines Elektrofahrzeugs.Dabei sind an ein Gehäuse des Thermomoduls (TM) wenigstens eine Wärmequelle und wenigstens eine Wärmesenke über zugeordnete mit dem Gehäuse verbindbare Flüssigkeitsleitungen anschließbar.Durch das Gehäuse sind dabei wenigstens eine erste elektrische Flüssigkeitspumpe (EWP1) zur Förderung von Flüssigkeit in einem Flüssigkeitskühlkreis(lauf) (KK) sowie wenigstens eine zweite elektrische Flüssigkeitspumpe (EWP2) zur Förderung von Flüssigkeit im Flüssigkeitsheizkreis(lauf) (HK) und ein Ventilsystem aufgenommen.Das Ventilsystem ist dabei in einzelne Kühlmodi (ein)stellbar, in welchen die Flüssigkeit des Flüssigkeitskühlkreis(lauf)s (KK) über den Verdampfer (8) und dabei wahlweise über wenigstens einen zweiten Wärmetauscher (14) zum Kühlen einer Fahrzeugkabine und / oder wenigstens eine Batterie (B) führbar ist.Die Erfindung betrifft zudem ein indirektes Wärmetransportmittelkreis(lauf)system und ein Elektrofahrzeug.
Absstract of: DE102024122038A1
Batteriezelle mit einem Hauptkörper, wobei der Hauptkörper eine Innenwand, die eine Kammer definiert, und eine der Innenwand gegenüberliegende Außenwand umfasst. Die Batteriezelle umfasst ferner in der Kammer angeordnete Batterieeinbauten und eine oder mehrere Barrierebeschichtungen, die auf der Innen- und/oder Außenwand angeordnet sind. Die eine oder die mehreren Barrierebeschichtungen weisen bei einem ersten thermischen Zustand eine erste Wärmeleitfähigkeit und bei einem zweiten thermischen Zustand eine zweite Wärmeleitfähigkeit auf.
Absstract of: DE102024116971A1
Die Erfindung betrifft ein Verfahren (100) zur Überwachung eines Hochvoltspeichers (11) eines Kraftfahrzeugs (10), aufweisend Schritte des Anregens eines Gehäuses (12) des Hochvoltspeichers (11) mit wenigstens einem Eingangssignal (SE); des Erfassens eines Ausgangsignals (SA) am Gehäuse (12) mittels wenigstens einer Erfassungseinrichtung (22); und des Bestimmen einer physischen Veränderung (14) des Gehäuses (12) des Hochvoltspeichers (11) auf Basis des erfassten Ausgangsignals (SA).
Absstract of: DE102024117042A1
Die Erfindung betrifft ein Batteriezellengehäuse (1) einer Batteriezelle (2), insbesondere einer Batterie eines Kraftfahrzeugs, mit einer umlaufenden Wandung (7), welche den Innenraum der Batteriezelle (2) von einem Außenraum trennt, wobei die umlaufende Wandung (7) einzelne Flächenbereiche (3) aufweist, die zusammenhängend miteinander verbunden ausgebildet sind, wobei zumindest einer der Flächenbereiche (3) durch ein Verstärkungselement (6) zumindest teilweise verstärkt ausgebildet ist.
Absstract of: DE102025141660A1
Die Erfindung betrifft einen elektrischen Energiespeicher (1) für ein Fahrzeug mit einer Mehrzahl in einem Gehäuse (2) angeordneter, elektrisch verschalteter Einzelzellen (3). Erfindungsgemäß ist vorgesehen, dass ein Innenraum des Gehäuses (2) mit einem Druckbehälter (4) mit einem Kühl- und/oder Löschmedium (5) gekoppelt ist und der Druckbehälter (4) ausgebildet ist, das Kühl- und/oder Löschmedium (5) bei einem erfassten thermischen Durchgehen einer Einzelzelle zur aktiven Kühlung der Einzelzellen (3) in dem Innenraum des Gehäuses (2) automatisch freizusetzen.
Absstract of: DE102024116855A1
Die Erfindung betrifft ein Verfahren zum automatisierten Aufbringen eines selbstklebenden Stanzteils (7) auf ein Fahrzeugelement (1) wie Batteriegehäuse durch eine an einem Roboterarm befestigte Applikationseinheit (100), wobei mittels eines Zylinders (5), aufweisend eine Wirkachse (W) und umfassend einen Vakuumstempel (6), ein selbstklebendes Stanzteil (7) von einem Stanzteilband (8) aufweisend eine Längsrichtung (L) abgelöst wird und dann auf ein Fahrzeugelement (1) aufgestempelt wird,- wobei das Stanzteilband (8) zur Verfügung gestellt wird,- der Vakuumstempel (6) in eine Übernahmeposition bewegt wird,- wobei in der Übernahmeposition ein Vakuum in dem Vakuumstempel (6) aktiviert wird,- das selbstklebende Stanzteil (7) durch Bewegen des Vakuumstempels in Richtung des selbstklebenden Stanzteils (7) mittels des Vakuums am Vakuumstempel (6) fixiert wird,- das selbstklebende Stanzteil (7) von dem Stanzteilband (8) abgelöst wird, indem der Vakuumstempel (6) mindestens so weit wegbewegt wird, dass das selbstklebende Stanzteil (7) vollständig von dem Stanzteilband (8) abgelöst wird, und- der Vakuumstempel (6) in eine Position über das Fahrzeugelement (1) geführt wird und das selbstklebende Stanzteil (7) auf dem Fahrzeugelement (1) aufgebracht wird, indem der Vakuumstempel (6) durch den Zylinder (5) aus der Übernahmeposition entlang der Wirkachse (W) in eine Applikationsposition gebracht wird, in der das selbstklebende Stanzteil (7) auf das Fahrzeugelement (1) gestempel
Absstract of: WO2025257723A1
The battery housing (12) comprises : a main body (18), made as a single piece by means of a process of high-pressure die-casting (HPDC) of aluminium alloy, and having a box-like shape adapted to define an internal volume and having only one open face (22); and a lid (20), adapted to be applied to the main body (18) so as to close said open face (22), wherein the lid (20) is adapted to be applied to the main body (18) by means of a mechanical snap- or pressure- connection (28; 30), or wherein the lid (20) is adapted to be applied to the main body (28) by means of a sliding connection.
Absstract of: WO2025257296A1
The present disclosure relates to the recycling of graphite from lithium-ion batteries. A graphite material depleted of amorphous carbon is obtained by heating a leach residue obtained by acid treatment of black mass from lithium-ion batteries under controlled conditions. The graphite material depleted of amorphous carbon is subjected to caustic leaching to obtain purified graphite.
Absstract of: WO2025257270A1
The invention relates to a method for detecting leaks in an object defining at least one internal volume, said method comprising a step of pressurization/depressurization of an internal volume from an initial pressure, characterized in that the method comprises, simultaneously with the pressurization/depressurization step, a monitoring step allowing the interruption of the pressurization/depressurization step when the instantaneous pressure/depression is outside a predetermined tolerance interval around said reference value.
Absstract of: DE102024116658A1
Kontaktsystem (10) zum elektrischen Kontaktieren eines oder mehrerer Prüflinge (P), insbesondere einer Batteriezelle an vorgesehenen Testpunkten für Hochstromanwendungen und/oder bei der Batterieherstellung, umfassend wenigstens ein, bevorzugt eine Vielzahl von, Prüfkontaktelementen (1) mit einem hülsenförmigen Gehäuse (2) und einem wenigstens abschnittsweise in dem Gehäuse (2) axial beweglich geführten, vorzugsweise federkraftbeaufschlagten Prüfkontaktkopf (3) zum elektrischen Kontaktieren des Prüflings (P), wobei der Prüfkontaktkopf (3) eine, vorzugsweise zentrale, Ausnehmung (4) zur Aufnahme eines darin axial beweglich geführten Innen- und/oder Senseleiters (5) aufweist, wobei der Prüfkontaktkopf (3) einen rückseitigen, vorzugsweise zylindrischen Abschnitt (3b) aufweist, welcher in dem hülsenförmigen Gehäuse (2) geführt ist, und wobei der Prüfkontaktkopf (3) durch eine an dem zylindrischen Abschnitt (3b) und/oder am hülsenförmigen Gehäuse (2) angeordnete Kontaktierungseinrichtung (6) mit dem hülsenförmigen Gehäuse (2) stromleitend verbunden ist, wobei dass das Kontaktsystem (10) ein rückseitig am Prüfkontaktelement (1) angeordnetes, stromleitendes Verbindungselement (11) in Form einer Stromschiene aufweist, in welcher das hülsenförmige Gehäuse (2) positionsfest und stromleitend gelagert ist.
Absstract of: DE102024205032A1
Ein erfindungsgemäßes Batteriesystem (16) für ein Kraftfahrzeug (10) weist ein Batteriegehäuse (18) und mindestens einen Längsträger (20) auf, der sich in Längsrichtung durch das Batteriegehäuse (18) erstreckt. Ferner weist das Batteriesystem (16) mindestens einen Querträger (22) auf, der sich in Fahrzeugquerrichtung durch das Batteriegehäuse (18) erstreckt und Batteriezellen oder Batteriemodule, die in dem Batteriegehäuse (18) angeordnet sind. Zusätzlich ist mindestens eine der folgenden Verbindungen gebildet:a) der mindestens eine Längsträger (20) ist mit unmittelbar benachbart angeordneten Batteriezellen oder Batteriemodulen fest verbunden,b) der mindestens eine Querträger (22) ist mit unmittelbar benachbart angeordneten Batteriezellen oder Batteriemodulen fest verbunden,c) der mindestens eine Querträger (22) ist den mindestens einen Längsträger (20) kreuzend angeordnet und im Kreuzungsbereich fest mit diesem verbunden.
Absstract of: DE102024117048A1
Die vorliegende Erfindung betrifft ein Batteriesystem (10) für ein Kraftfahrzeug (100), das Batteriesystem (10) umfassend zumindest einen Grundkörper (20), zumindest eine Speichervorrichtung (30) zur Speicherung und Bereitstellung von elektrischer Energie innerhalb des zumindest einen Grundkörper (20), eine Entgasungsvorrichtung (40) zur Entgasung des zumindest einen Grundkörpers (20) und eine Kühlschnittstelle (80) zum Einbringen von Kühlflüssigkeit von einer ersten Zelle der Speichervorrichtung (30) in zumindest eine benachbarte zweite Zelle der Speichervorrichtung (30). Ferner betrifft die Erfindung ein Kraftfahrzeug (100) mit zumindest einem Batteriesystem (10).
Absstract of: DE102024116711A1
Die Erfindung betrifft eine thermische Ausgangsschnittstelleneinrichtung (11) für ein Kraftfahrzeug (10), wobei die Ausgangsschnittstelleneinrichtung (11) mit einer Antriebsbatterie (12) des Kraftfahrzeugs (10) thermisch verbindbar ist, wobei die Ausgangsschnittstelleneinrichtung (11) wenigstens ein Wärmetauschelement (16) aufweist, welches eingerichtet ist, thermische Energie von der Antriebsbatterie (12) abzugeben.
Absstract of: DE102024116713A1
Die Erfindung betrifft eine Aufnahmeeinrichtung (11) für Batterierundzellen (20) eines Hochvoltspeichers, wobei die Aufnahmeeinrichtung (11) eingerichtet ist, Batterierundzellen aufzunehmen und in einer Zellpackung anzuordnen. Zudem betrifft die Erfindung eine Aufnahmevorrichtung 10 und einen Hochvoltspeicher.
Absstract of: WO2025257189A1
The present invention relates to a method for recovering metals from a black mass from spent lithium-ion batteries. In particular, it relates to a method for leaching Co, Ni and Li from a solid S obtainable from a black mass from spent Li-ion batteries, said solid S comprising Ni, Co, Mn and Li, said method comprising contacting the solid S with a sulfur-containing inorganic peracid, such as Caro's acid (peroxymonosulfuric acid), thereby obtaining a solution C comprising Co, Ni, and Li on the one hand, and a solid S" comprising Mn on the other hand.
Absstract of: WO2025257108A1
A method for fabricating a metal oxide layer involves providing a metallic nitride substrate and performing electrochemical oxidation of the metallic nitride substrate in either an acidic or basic environment to form the metal oxide layer. This electrochemical oxidation process is characterized by a gas-evolving reaction that results in the formation and escape of nitrogen gas from the forming metal oxide layer such that a mesoporous 3D interconnected metal oxide structure comprising a 3D network of interconnected pores is formed. This method enables the creation of metal oxide layers with specific properties suitable for various applications, including but not limited to, use in batteries, and as electrodes in molecular synthesis.
Absstract of: DE102024116584A1
Die vorliegende Erfindung betrifft einen lösungsmittelbasierten Elektrolyt für einen elektrochemischen Energiespeicher, aufweisend wenigstens die folgenden Bestandteile:- wenigstens ein Lösungsmittel; und- wenigstens ein Leitsalz, wobei wenigstens ein Lösungsmittel der folgenden Formel (1) entspricht:wobei- R und R1 gleich oder verschieden sind und ausgewählt sind aus der Gruppe bestehend aus H, CH3, der Struktur gemäß Formel (2), der Struktur gemäß Formel (3) und der Struktur gemäß Formel (4), wobei- die Formel (2) der folgenden Struktur entspricht:- die Formel (3) der folgenden Struktur entspricht:wobei n eine ganze Zahl von 1 bis 10 ist;- die Formel (4) der folgenden Struktur entspricht:wobei in den Formeln (1), (3), und (4) R2und R3gleich oder verschieden sind und ausgewählt sind aus der Gruppe bestehend aus H, (CH2)x-CH3, wobei x eine ganze Zahl von 0 bis 9 ist.
Absstract of: DE102024122880A1
Eine Sekundärbatteriezelle umfasst ein Batteriezellengehäuse, einen Elektrolyten und eine Elektrodenanordnung. Die Elektrodenanordnung umfasst eine Kathode mit einem Kathodenbereich, eine Anode, einen Separator (i) mit einer der Anode zugewandten Seite und einer der Kathode zugewandten Seite, (ii) mit einem Bindungsbereich auf der der Kathode zugewandten Seite und vollständig außerhalb des Kathodenbereichs und (iii) ausgelegt, um die Kathode und die Anode physisch zu trennen, und einen Klebestreifen, der ausschließlich auf der der Kathode zugewandten Seite des Separators angebracht ist. Die Kathode ist von dem Separator entweder teilweise umschlossen oder vollständig umschlossen. Der Klebestreifen befindet sich vollständig in dem Bindungsbereich. Zwei Segmente des Klebestreifens auf gegenüberliegenden Seiten der Kathode sind miteinander verbunden.
Absstract of: DE102025119756A1
Ein Batteriemodul (10) ist offenbart. Das Batteriemodul (10) weist auf: einen Batteriestapel (100) mit einer Mehrzahl von Batteriezellen (110), welche in einer ersten Richtung (D1) gestapelt sind, und mindestens einem Pad-Element (120), welches zwischen der Mehrzahl von Batteriezellen (110) vorgesehen ist, und ein Wärmeübertragungselement (200). Das Wärmeübertragungselement (200) ist an einer Seite des Batteriestapels (100) vorgesehen und ist in Kontakt mit dem Batteriestapel (100) stehend vorgesehen. Die Mehrzahl von Batteriezellen (110) erstreckt sich in einer zweiten Richtung (D2), welche die erste Richtung (D1) schneidet. Das Wärmeübertragungselement (200) ist an einer Seite des Batteriestapels (100) in einer dritten Richtung (D3) vorgesehen, welche die erste und die zweite Richtung (D1, D2) schneidet. Das Wärmeübertragungselement (200) weist ein erstes und ein zweites Wärmeübertragungselement (210, 220) auf, welche in Form unterschiedlicher Materialien vorgesehen sind.
Absstract of: DE102024116394A1
Die Erfindung betrifft ein Batteriemodul (10) mit einem Zellstapel (16), der mindestens eine prismatische erste Batteriezelle (12a) aufweist und mindestens eine prismatische zweite Batteriezelle (12b) aufweist, wobei die erste Batteriezelle (12a) ein erstes Zellgehäuse (18a) mit einer ersten Gehäuseseite (20a) umfasst, die eine außenseitige erste Oberfläche (22a) aufweist, die ein erstes Rillenmuster (24a) aufweist, das erste vertiefte Bereiche (26a) und zweite erhabene Bereiche(28a) aufweist, die jeweils in eine ersten Richtung (y) langgestreckt verlaufen, wobei die ersten und zweiten Bereiche (26a, 28a) in einer zweiten Richtung (z) abwechselnd nebeneinander verlaufen. Dabei umfasst der Zellstapel (16) eine von einem Kühlmittel durchströmbare erste Kühlplatte (14a), die zwischen der ersten Batteriezelle (12a) und der zweiten Batteriezelle (12b) angeordnet ist, wobei die erste Kühlplatte (14a) eine erste Kühlseite (30a) umfasst, die der ersten Gehäuseseite (20a) zugewandt ist, wobei die erste Kühlseite (30a) ein zum ersten Rillenmuster (24a) komplementäres zweites Rillenmuster (24b) aufweist.
Absstract of: EP4664650A1
The electrochemical cell (10) comprises at least an electrochemical set (12) comprising:- a first electrode (14) having a first polarity and a second electrode (16) having a second polarity opposed to the first polarity;- a separator (17) interposed between the first electrode (14) and the second electrode (16) and comprising at least a bar (40) made up of a separator material;The at least one bar (40) is attached to the first electrode (14) and/or to the second electrode (16).
Absstract of: US2025364586A1
A battery including a housing; an electrolyte disposed in the housing; and a first electrode, wherein a porosity of the first electrode varies across a surface of the first electrode. A method includes obtaining a first electrode having a first predetermined porosity, obtaining a second electrode having a second predetermined porosity, wherein the second predetermined porosity is different than the first predetermined porosity, and laminating the first electrode with the second electrode, thereby to provide for an interface free electrode structure with a porosity gradient.
Absstract of: CN120677572A
A non-aqueous electrochemical cell is provided. The battery includes a housing including an internal space extending to an open end, and a positive electrode, a negative electrode, a separator, and an electrolyte disposed within the internal space of the housing. A sealing member is disposed adjacent the open end of the housing, where the sealing member includes a polymer composition that includes a polyarylene sulfide and a bifunctional polymer that includes an epoxy functional group and a (meth) acrylate functional group. The epoxy content of the polymer composition is from about 0.3 parts by weight to about 2 parts by weight per 100 parts by weight of the polyarylene sulfide in the polymer composition.
Absstract of: EP4663378A1
The present invention relates to a method for manufacturing a pouch-type secondary battery, and more specifically, relates to a pouch forming device capable of preventing a curling phenomenon, and a secondary battery manufacturing method using the same.According to one example of the present invention, it may provide a pouch forming device for a secondary battery comprising: a grip module holding and fixing edge portions of the pouch film; a first press module disposed on one side of the pouch film and pressure-forming the pouch film in the other side direction to stretch the pouch film; and a second press module disposed on the other side of the pouch film and press-forming the pouch film in one side direction to form a stepped battery cell accommodating part with respect to the edge portions.
Absstract of: EP4664596A1
The present application provides a battery and an electrical apparatus; the battery includes a positive electrode plate and an electrolyte solution, in which, the positive electrode plate includes LixNi(1-y-z)CoyMzO2-b, and M includes at least one element from Mn, Al, Fe, Ti, Mg, Cr, Ga, Cu, Zn, Nb and Zr, 0
Absstract of: EP4664631A1
This application provides an energy storage container and an energy storage container system. The energy storage container includes a container body. The container body has accommodation space. The accommodation space includes a plurality of battery compartments and one temperature control compartment. The plurality of battery compartments are sequentially arranged in a first direction to form a battery region. The temperature control compartment is located between two adjacent battery compartments, or the temperature control compartment is located at an end part that is of the battery region and that is in the first direction. Each of the battery compartments is provided with a door plate, and all of door plates are located on a same side of the container body. The energy storage container provided in this application has high space utilization, high energy density, low levelized costs of storage, and high system efficiency, and is designed with a single door. Therefore, self-stacking may be implemented to form an energy storage container system for transport, and a high-density side-by-side arrangement may be further implemented to form an energy storage container system for an application scenario.
Absstract of: EP4664605A1
The present invention provides a structure of A battery pack comprising: a pack frame; and a plurality of battery modules arranged in the pack frame along a widthwise direction of the pack frame and spaced apart from each other, wherein the pack frame comprises: a bottom plate; a side plate; a cavity is provided in the bottom plate and filled with a coolant without empty space; and an outlet port communicating an inside of the cavity with an outside of the pack frame.
Absstract of: EP4664637A1
A battery pack and an electric device provided in the invention relate to the technical field of batteries. The battery pack includes a box body, a cross beam and a plurality of battery cell groups, the box body is provided with an accommodating chamber having an opening at an end, the box body includes a bottom plate and a frame body formed by a plurality of side plates in an enclosing manner, a direction perpendicular to the bottom plate is a first direction, and the plurality of side plates are fixedly connected to the bottom plate along the first direction; the cross beam is arranged in the accommodating chamber to divide the accommodating chamber into a plurality of accommodating units, a direction parallel to the bottom plate is a second direction, and the cross beam is perpendicular to the bottom plate and extends along the second direction; and the plurality of battery cell groups are arranged in the accommodating units along the second direction, a direction perpendicular to the cross beam is a third direction, and each battery cell group includes a plurality of battery cells stacked along the third direction, the cross beam abuts against at least one end surface of the battery cell group. In this way, the assembly of the battery cell groups is facilitated, and it is beneficial to fixing the battery cell groups.
Absstract of: EP4664564A1
The present application may provide an electrode, a battery cell, a battery module, and a battery pack comprising the electrode, and the electrode having a current collector and an active material layer located on at least one side of the current collector, wherein the active material layer comprises an active material, a binder and a conductive polymer, wherein the conductive polymer comprises a conductive component and an ionized polymer component, wherein the binder comprises a resin A having an SP<sub>d</sub> of 30 (MPa)<sup>1/2</sup> or less according to the following equation 1, wherein the polymer component comprises a resin B having an SP<sub>d</sub> of 30 (MPa)<sup>1/2</sup> or less according to the following equation 1: Equation 1 SP<sub>d</sub> = SP<sub>W</sub> - SP<sub>P</sub> In equation 1, SP<sub>W</sub> is the solubility parameter of water measured at 25°C., and SP<sub>P</sub> is the solubility parameter of the resin A or resin B measured at 25°C.
Absstract of: EP4664623A1
An embodiment of the present invention relates to a secondary battery and addresses the technical problem of providing a secondary battery which can prevent deformation during the assembly of a cap assembly. To this end, disclosed in the present invention is a secondary battery comprising: a can; an electrode assembly accommodated in the can; a cap assembly for closing the can and including a cap-up and a safety vent; and a fixing means for fixing the cap-up and the safety vent to each other.
Absstract of: EP4663981A1
An object of the present invention is to provide a gasket, a planar shape of which can be easily deformed and which can be easily positioned in a space of a target sealed object, and a sealing structure. A gasket (1), which is capable of sealing a loop-shaped target sealed regions (61, 71) between a pair of members (60, 70) combined with each other, includes a base (22) having a shape along a circumferential direction of the target sealed regions (61, 71), a joint (10), a bending rigidity of which in a width direction is lower than that of the base (22), which is connected to the base (22), and a guide (30) for positioning the gasket (1) in the target sealed regions (61, 71), wherein the guide (30) includes a hole (32) along a joining direction of the pair of members (60, 70), and wherein a positioning pin (50) fixed to the pair of members (60, 70) is inserted in the hole (32).
Absstract of: AU2023428801A1
A vehicle battery jump starter with air pump device includes a vehicle battery jump starter and an air pump disposed within a cover. An internal battery is also disposed within the cover and connected to the vehicle battery jump starter and the air pump. A port is provided so as to provide connection to the device from an external vehicle battery. The air pump is configured such that it is powered by the external battery in a first mode of operation.
Absstract of: EP4664563A1
Provided is a binder composition for an electrical storage device that can produce an electrical storage device electrode excellent in surface state, adhesiveness, and ion conductivity, and can improve the cycle life characteristics of an electrical storage device.The binder composition for an electrical storage device according to the present invention includes: a polymer (A); and 30 ppm to 30,000 ppm of an emulsifier (B) with respect to a total mass of the polymer (A). When a total of repeating units in the polymer (A) is defined as 100 mass%, the polymer (A) contains 1 mass% to 50 mass% of a repeating unit (a1) derived from an aromatic vinyl compound, and 20 mass% to 75 mass% of a repeating unit (a2) derived from an unsaturated carboxylic acid ester.
Absstract of: EP4664604A1
The present application relates to the field of energy storage devices, and discloses a battery, including battery cells, first heat exchange plates and insulating and heat conducting layers, wherein the battery cell is provided with an electrode column, and the electrode column has a heat exchange surface; the insulating and heat conducting layer is disposed between the heat exchange surface and the first heat exchange plate; and the insulating and heat conducting layer has a first side surface and a second side surface that are opposite to each other, the first side surface is attached to the first heat exchange plate, and the second side surface is attached to the heat exchange surface or a metal part connected to the electrode column. The present application effectively improves the heat dissipation effect of the battery.
Absstract of: EP4664044A1
A drying method for a lithium battery and a lithium battery are provided, including: step 1: placing a cell to be dried in an oven; Step 2: performing the following drying processes for a plurality of rounds: adjusting a temperature and a vacuum level in the oven, where the temperature and vacuum level are readjusted in the oven when performing the drying processes for a next time, and compared to the drying processes in a previous time, the temperature in the oven is decreased in a stepwise manner, and the vacuum level in the oven is increased in a stepwise manner; and step 3: performing a moisture test on the cell to be dried.
Absstract of: EP4664610A1
A battery pack (10) includes a battery cell (102), a left cover (112) and a right cover (114) thermally coupled with a predetermined portion of the battery cell (102), and a filler (150) thermally coupled with another predetermined portion of the battery cell (102). The amount of at least a portion of the filler (150) decreases toward the predetermined portion of the battery cell (102).
Absstract of: EP4663403A1
The present application provides a lithium carbon composite belt and a preparation method therefor. The lithium carbon composite belt comprises a substrate, a metal lithium transition layer on each side of the substrate, and a lithium carbon composite material layer on an outer layer of the metal lithium transition layer, wherein a mass fraction of carbon in the lithium carbon composite material layer is in a range from 5% to 90%. The substrate layer of the lithium carbon composite belt provides high tensile performance for the lithium carbon composite belt, which is suitable for large scale industrial production. The metal lithium transition layer makes the substrate layer tightly bound with the lithium carbon composite material layer, avoiding the problem of forming bumps during the production of the lithium carbon composite belt. The presence of the metal lithium transition layer can effectively reduce the internal resistance of the lithium carbon composite belt. The lithium in the transition layer is active lithium, and thus can also participate in the battery cycling process, so as to compensate the consumption of the metal lithium in the lithium carbon layer. The lithium carbon composite material layer contains a carbon skeleton, which can not only provide a reserved space for metal lithium deposition, inhibiting the volume change of the metal lithium during the cycling, but also effectively reduce local current density on an electrode, preventing the formation of lithi
Absstract of: TW202450155A
According to one aspect, a feedstock for fabricating an iron electrode of an electrochemical cell may include iron-containing particles of a first material, sulfide-containing particles of a second material different from the first material, and a barrier material different from each of the first material and the second material, the barrier material at least partially physically separating the sulfide-containing particles from the iron particles, the at least partial physical separation of the iron-containing particles from the sulfide-containing particles maintainable by the barrier material at temperatures at which iron in the iron-containing particles bonds in the solid state.
Absstract of: CN120677059A
A catalyst device for a lead acid battery, and a lead acid battery comprising the catalyst device are disclosed. A catalyst layer (120) is mounted in a cavity (112) of the device, and a porous layer (140) comprising a thermoplastic material is mounted in the cavity so as to cover a face of the catalyst layer and is configured to prevent thermal runaway of the catalyst device. And the plane size of the porous layer is larger than that of the catalyst layer. The catalyst layer is mounted in a cavity within a maintenance means (130) configured to maintain the position of the catalyst layer within the cavity, and wherein at least one face is covered by the porous layer, thereby ensuring alignment of the catalyst layer and the porous layer in use.
Absstract of: EP4664581A1
Provided in the present application are a battery cell, a battery, and an electrical apparatus. The battery cell comprises an electrode assembly which comprises an electrode plate and a separator. The electrode plate comprises a current collector and a film layer which is disposed on at least one surface of the current collector and contains an active material and a liquid absorption polymer, and the electrode plate satisfies: v/λ≥1.2, wherein v represents the liquid absorption rate of the film layer and has a unit of mg/s, and λ represents the porosity of the film layer. The separator comprises a liquid-retaining polymer, and the separator satisfies: (m2-M)/(m1-M) ≥ 25%, wherein M represents the mass of the separator before the separator absorbs an electrolyte solution, and has a unit of g; m1 represents the mass of the separator weighed at ambient pressure after the separator is soaked in the electrolyte solution for 2 h, and has a unit of g; and m2 represents the mass of the separator weighed at a pressure of 10000 N at ambient pressure after the separator is soaked in the electrolyte solution for 2 h, and has a unit of g.
Absstract of: EP4664652A1
The present application provides a separator, a battery cell, a battery, and an electrical apparatus. The separator comprises a separator body and a polymer layer provided on at least one surface of the separator body. The separator satisfies: v/λ>5.00, wherein λ represents the porosity of the separator, v represents the liquid absorption rate of the separator, and the unit of the liquid absorption rate is mg/s.
Absstract of: EP4664651A1
A separator, a battery cell (5), a battery, and an electric device (6). The separator comprises a liquid retention polymer, and the separator satisfies the following formula: (m2-M)/(m1-M)≥25%, wherein M represents the mass of the electrolyte not absorbed by the separator, and the unit thereof is g; m1 represents the mass of the separator weighed under an ambient pressure after having been immersed in the electrolyte for 2 h, and the unit thereof is g; and m2 represents the mass of the separator weighed under a pressure of 10,000 N in the ambient pressure after having been immersed in the electrolyte for 2 h, and the unit thereof is g.
Absstract of: EP4664571A1
The present application provides a battery cell, a battery, and an electrical apparatus; the battery cell comprises an electrode assembly and an electrolyte; the electrode assembly comprises a first electrode plate, a second electrode plate, and a separator; the polarities of the first electrode plate and the second electrode plate are opposite; the separator is arranged between the first electrode plate and the second electrode plate; at least one of the first electrode plate, the second electrode plate, and the separator comprises a lyophilic polymer; and the battery cell satisfies the following formula (I): 0.01%≤yM−M′≤15%
Absstract of: EP4664492A1
There is provided a diphosphorus pentasulfide composition according to the present embodiment, in which a degree of crystallinity calculated from a spectrum obtained by X-ray diffraction using a CuKa ray as a ray source is equal to or more than 40% and equal to or less than 80%, in a DSC curve of the diphosphorus pentasulfide composition obtained by measurement using a differential scanning calorimeter under conditions of a start temperature of 25°C, a measurement temperature range of equal to or more than 30°C and equal to or less than 350°C, a temperature rising rate of 5°C/min, and an argon atmosphere of 100 ml/min, an endothermic peak is observed in a temperature range of equal to or more than 280°C and equal to or less than 300°C, and a heat of fusion of the endothermic peak is equal to or more than 60 J/g and equal to or less than 100 J/g.
Absstract of: EP4664549A1
Provided is a means capable of reducing resistance in an electrode for an all-solid-state battery including an active material layer containing an active material, a solid electrolyte, a fibrous conductive aid, and polytetrafluoroethylene and having sufficient dispersibility. Provided is a method for manufacturing an electrode for an all-solid-state battery including an active material layer containing an active material, a solid electrolyte, a fibrous conductive aid, and polytetrafluoroethylene, the method including: a first stirring step of placing the active material and the solid electrolyte in a first container and stirring them using a resonance acoustic mixer; and a second stirring step of placing a mixture obtained in the first stirring step and the fibrous conductive aid in a second container and stirring them using a resonance acoustic mixer, wherein the first stirring step and the second stirring step satisfy at least one of predetermined conditions (1) to (4).
Absstract of: EP4664624A1
In a manufacturing method of a battery of embodiments, a pair of terminals are attached to a lid, in which first and second edges along a first direction and third and fourth edges along a second direction intersecting the first direction form an outer periphery, while separating a second terminal from a first terminal to a side where the fourth edge is located. In the manufacturing method, a proximity portion closer to the first terminal than the third edge on the first edge is formed, and an outer periphery of the lid is welded to the outer container by performing laser welding a plurality of times. At least the proximity portion is welded by first laser welding, and one or more of start points and one or more of end points of the plurality of processes of laser welding are located in a range between the terminals.
Absstract of: EP4664131A1
An object of the invention is to provide a technique capable of determining a state of a battery at high speed and in detail. A battery diagnosis device according to the invention determines whether a battery is in a first state based on a first difference in battery voltage within 4 msec from an end time point at which charging or discharging of the battery is ended, and further determines whether the battery is in a second state based on a second difference in battery voltage thereafter (see FIG. 3).
Absstract of: WO2024165861A1
The present invention relates to composite materials and processes for forming said composite materials. The invention also relates to composites obtained by the processes described herein.
Absstract of: AU2024217972A1
A copper-zinc battery cell including a first pan and second pan, each of the pans forming a well for receiving an electrolyte. The battery cell may include a membrane comprising a 2D material composite which separates the respective wells of the first and second pan. The battery cell allows for scaling of a resultant battery pack for various applications.
Absstract of: EP4664626A1
A battery pack having a pack case including a lower case and an upper case that define an inner space, a plurality of battery cells in the inner space, a separation sheet between a bottom of the pack case and the plurality of battery cells, and a thermally conductive resin layer between the separation sheet and the plurality of battery cells, in which the separation sheet is coupled to the thermally conductive resin layer, and a first adhesive strength per unit area between the separation sheet and the thermally conductive resin layer is lower than a second adhesive strength per unit area between the pack case and the thermally conductive resin layer.
Absstract of: EP4663316A1
An objective of the present invention is to provide a method for recycling a waste lithium-ion secondary battery, the method capable of recovering a raw material for a positive electrode material from a waste lithium ion secondary battery in an economical and eco-friendly manner, and powder including a valuable material component obtainable thereby. In order to achieve the above-described object, the method for recycling a waste lithium-ion secondary battery is characterized by including (a) loading an object to be heat-treated, which is at least a part of a waste lithium-ion secondary battery including a positive electrode material, into a heat-treatment furnace, (b) increasing the temperature inside the heat-treatment furnace to a range of 200 °C to 400 °C, (c) maintaining the increased temperature, and (d) discharging first powder produced after the completion of the heat treatment of the waste lithium-ion secondary battery, wherein the first powder includes valuable metal powder containing a valuable metal composition of the positive electrode material.
Absstract of: GB2641750A
An electrolyte composition for a lithium-ion battery, the composition comprising: (a) 18-35 wt% of lithium salt; (b) 1-25 wt% of solvent additive; and (c) 45-80 wt% of solvent. The total amount of (a), (b) and (c) is less than or equal to 100 wt% of the electrolyte composition. The lithium salt comprises lithium bis(fluorosulfonyl)imide (LiFSI) and lithium 4,5-dicyano-2-(trifluoromethyl)imidazole (LiTDI). The solvent additive comprises one or more fluorinated and/or unsaturated carbonate compounds, such as fluoroethylene carbonate (FEC), vinylene carbonate (VC) or trifluoro-propylene carbonate (TFPC); and is preferably a mixture of FEC and VC. The solvent comprises a cyclic carbonate and a linear carbonate. The cyclic carbonate may be one or more of ethylene carbonate (EC) and propylene carbonate (PC). The linear carbonate may include one or more of dimethyl carbonate (DMC), ethyl methyl carbonate (EMC) and diethyl carbonate (DEC). The solvent may comprise 35-85 wt% cyclic carbonate and 15-65 wt% linear carbonate. The solvent may include 25-55 wt% EC, 10-45 wt% PC and 15-65 wt% DMC. The solvent additive may further include organosilicon or succinonitrile in an amount up to 5 wt% based on the total amount of electrolyte composition.
Absstract of: CN120604348A
The present disclosure provides an electrode 1 comprising a 3D composite current collector 2 having an electrically conductive base current collector 3 with a plurality of laterally distributed electrically conductive upright bracket elements 4 comprising carbon-based protrusions 6 and covered by a passivation layer 10 for protecting the struts from direct contact with the electrode or electrolyte material, the passivation layer (10) consists of a first composition (10c) that allows the transmission of electrons to the substrate and prevents the transmission of lithium through the passivation layer. In a preferred embodiment, the electrode is coated with a stack of functional cell layers comprising one or more of a seed layer 20, an anode metal layer 30, and an anode passivation layer 40. The present disclosure also relates to a method of manufacture and an energy storage device comprising the electrode.
Absstract of: EP4664591A1
Provided in this application are an electrolyte solution, a battery cell, a battery, and a power consuming apparatus. The electrolyte solution includes a first anion represented by Formula (I), where X, a, b, R<sup>1</sup>, and R<sup>2</sup> are respectively as defined herein.
Absstract of: EP4664584A1
The present application relates to a 1.5V lithium battery and a manufacturing method thereof. The lithium battery includes a circuit assembly, a plastic frame, a wound battery core assembly, a first metal housing, a second metal housing, a first insulating seal and an insulating sheath. The wound battery core assembly is arranged in the second metal housing, the first metal housing and the second metal housing dock with each other and fixed by circumferential welding, and the circuit assembly includes a PCB, a low-voltage positive cap, a high-voltage positive connecting piece and a negative elastic piece. In the present application, the circuit assembly can stably output a low voltage of 1.5V. An upper end of the wound battery core assembly is located at a shallow position in the second metal housing is shallow, a length of the positive tab is shortened, the positive tab is not long enough to contact an inner wall of the metal housing, and the risk of a short circuit between the positive tab and the metal housing is completely addressed. The first insulating seal and the second insulating seal can prevent an electrolyte from leaking out or entering the first metal housing, thus guaranteeing stable electrical performance.
Absstract of: CN120584412A
The present invention relates to a composite powder for use in a negative electrode of a battery, the composite powder comprising composite particles and carbon nanotubes, the composite particles comprising a carbonaceous matrix material in which silicon-based particles are embedded, and wherein the surfaces of the composite particles are at least partially covered by the carbon nanotubes.
Absstract of: EP4664561A1
The present application provides a secondary battery and an electrical device. The secondary battery comprises: a positive electrode sheet, wherein the positive electrode sheet comprises a positive electrode film layer, the positive electrode film layer comprises a positive electrode active material containing transition metal elements, based on the total molar number of the transition metal elements in the positive electrode active material, the molar content of nickel element is not lower than 85%, and the energy per unit area of the positive electrode film layer on a single side of the positive electrode sheet is 15-35 mWh/cm<sup>2</sup>, optionally 20-35 mWh/cm<sup>2</sup>; and a negative electrode sheet, wherein the negative electrode sheet comprises a negative electrode film layer, the negative electrode film layer comprises a negative electrode active material containing a carbon-silicon composite material, and the carbon-silicon composite material comprises carbon matrix particles having a carbon skeleton and silicon nanoparticles attached to the carbon skeleton. According to the secondary battery, the energy density of the secondary battery is improved by means of the matching design of a positive electrode active material and a negative electrode active material.
Absstract of: EP4664558A1
The present invention relates to a cathode active material, and a cathode and a lithium secondary battery, comprising same and, particularly, to a cathode active material, and a cathode and a lithium secondary battery, comprising same, the cathode active material comprising a lithium transition metal oxide having a single crystallization degree (X) of 0.50 to 0.75 according to formula 1, wherein the lithium transition metal oxide is in the form of a single particle. In formula 1, a<sub>i</sub> represents a value (A<sub>i/</sub>A) of the cross-sectional area (A<sub>i</sub>) of the ith crystalline particle relative to the single particle cross-sectional area (A) when the single particle consists of i crystalline particles.
Absstract of: WO2024165410A1
The present invention relates to an electrode-forming composition comprising a tetrafluoroethylene (TFE) (co)polymer having a specific surface area of 4 m2/g or less, preferably 2 m2/g or less, measured pursuant to the method ISO9277, at least one electroactive material, optionally at least one solid ionic conducting inorganic material and optionally at least one processing aid; to a separator- forming composition comprising said TFE (co)polymer, at least one solid ionic conducting inorganic material, and optionally at least one processing aid; to a process for manufacturing an electrode or a separator by using the compositions, and to an electrode or a separator obtainable by the process. The present invention also relates to a process for manufacturing a gel polymer electrode; to a gel polymer electrode obtainable by the process; to a secondary battery comprising an electrode, a separator or a gel polymer electrode according to the present invention, and to use of the TFE (co)polymer in a binder composition for a secondary battery.
Absstract of: CN120322883A
The invention relates to a solid electrolyte having improved dendritic stability (stability against dendritic formation), comprising a lithium ion conductive material, in particular a glass ceramic, and to the use and to a method for the production thereof.
Absstract of: EP4664541A1
The present application provides a battery, comprising electrode sheets, wherein each electrode sheet comprises a current collector, a first active layer, and a second active layer; the first active layer is located on at least one surface of the current collector; the second active layer is located on the surface of the first active layer away from the current collector; the first active layer and the second active layer each comprise an active substance and a gel electrolyte; the first active layer further comprises a swelling electrolyte provided with pores; part of the gel electrolyte in the first active layer is filled in the pores of the swelling electrolyte.
Absstract of: EP4664556A1
Provided in the present application is a secondary battery, comprising a positive electrode plate. The positive electrode plate is provided with a positive electrode active material. The positive electrode active material comprises an agglomerated positive electrode material and a monocrystalline-like positive electrode material. The agglomerated positive electrode material has a volume average particle size Dv50 of 8 µm-15 µm. The agglomerated positive electrode material has a primary particle size of 0.1 µm-0.6 µm. The monocrystalline-like positive electrode material has a volume average particle size Dv50 of 2.5 µm-4 µm. The monocrystalline-like positive electrode material has a primary particle size of 0.8 µm-2 µm. The mass ratio of the agglomerated positive electrode material to the monocrystalline-like positive electrode material is greater than or equal to 1. The present application also relates to a corresponding electrical device. The described secondary battery has a high energy density and an excellent cycle life.
Absstract of: EP4663608A1
A method for preparing a metal-bearing M'-hydroxide particulate material, the method comprising the steps of:(a) determining a target value (D') for a median particle diameter D50 of the material to be prepared, preferably the D' being in the range of 3-20 µm ;(b) combining, during a time period (T1-T2), streams of an aqueous solution (βc) containing salts of metals Mc' and an aqueous solution (ω) containing an alkali metal hydroxide in a stirred tank reactor at a pH of 10.5-12.5, determined at 20 °C, thereby increasing the sizes of particles comprising Mc'-hydroxide in a slurry thus formed;(c) continuing step (b) until the D50 of the particles reaches approximately a value of Dc, wherein the amount of metals Mc' provided by the flow of solution (βc) during the period (T1-T2) is θc, wherein Dc=1−ε∗D'3, wherein ε is a predetermined value selected from the range of 0.01-0.9;(d) providing at least a fraction Sc of the slurry obtained in step (c) either to the same or to a different stirred tank reactor, wherein 0
Absstract of: EP4664641A1
The disclosure relates to a protective cover (1) for protecting a battery cell top surface (21) of a battery cell (2), comprising:- a main protective wall (11) with an extension in a longitudinal direction (L) and a width direction (W), and a top surface (111) facing upwardly in the height direction (H) and a bottom surface (112) facing downwardly in the height direction (H),- at least one battery cell attachment portion (118) which is arranged to attach the protective cover (1) to the battery cell (2) such that the bottom surface (112) faces the battery cell top surface (21), wherein the at least one battery cell attachment portion (118) is configured to provide a snap-fit connection to the battery cell (2). The disclosure also relates to a battery cell assembly (2), an energy storage system (30), and a vehicle (6).
Absstract of: EP4664642A1
The disclosure relates to a protective cover (1) for protecting a battery cell top surface (21) of a battery cell (2), comprising a main protective wall (11) and a side wall (12) protruding downwardly from the main protective wall (11) and extending around an outer perimeter (115) of the main protective wall (11) such that an inner surface (121) of the side wall (12) and the bottom surface (112) of the main protective wall (11) defines a space (S) with a height corresponding to a height of the side wall (12). The disclosure also relates to a cover assembly (4), a battery cell assembly (5), and a vehicle (6).
Absstract of: EP4664132A1
Es wird ein Verfahren zur Ermittlung eines kalendarischen Kapazitätsverlusts ΔQ einer Batteriezelle über einen festgelegten Zeitbereich vorgeschlagen. Das Verfahren ist wenigstens gekennzeichnet durch folgende Schritte:- (S1) Bereitstellen eines ersten Ladezustands SOC1 zu einem Anfang des Zeitbereichs;- (S2) Ermitteln eines zweiten Ladezustands SOC2 zu einem Ende des Zeitbereichs;- (S3) Bereitstellen einer ladezustandsabhängigen Ausdehnungskennlinie DSOC(SOC) (40);- (S4) Bereitstellen einer vom Kapazitätsverlust ΔQ abhängigen Ausdehnungskennlinie Dloss(ΔQ) (41);- (S5) Erfassen einer Ausdehnungsänderung ΔD (42) der Batteriezelle zwischen Anfang und Ende des Zeitbereichs; und- (S6) Ermitteln des Kapazitätsverlusts ΔQ mittels des Zusammenhangs ΔD = DSOC(SOC2) - DSOC(SOC1) + Dloss(ΔQ).Weiterhin betrifft die Erfindung ein Herstellungsverfahren für eine Batteriezelle.
Absstract of: EP4664562A1
Provided are a positive electrode plate and a preparation method therefor, a battery cell, a battery, and an electrical apparatus, belonging to the technical field of batteries. The positive electrode plate includes: a positive electrode current collector, a first film layer, a second film layer, and a third film layer, where the third film layer is located between the first film layer and the second film layer, the first film layer is located on a surface of at least one side of the positive electrode current collector and is closer to the positive electrode current collector than the second film layer; the first film layer includes a first active material, and the first active material includes a layered structure material; the second film layer includes a second active material, and the second active material includes at least one of an olivine structure material and a spinel structure material; and the third film layer is used for isolating the first active material from the second active material. The technical solutions in the embodiments of the present application are beneficial to enhancing the performance of the battery cell.
Absstract of: EP4664061A2
A monitoring device according to one embodiment disclosed herein may include a communication circuit, a processor, and a memory configured to store instructions, wherein, when executed by the processor, the instructions allow the monitoring device to acquire an image of a jelly roll including a positive electrode, a separator, and a negative electrode through the communication circuit, detect starting points of the positive electrode and the negative electrode from the image, and calculate input amounts of the positive electrode and the negative electrode included in the jelly roll based on the starting points.
Absstract of: EP4664550A1
Embodiments of the present application provide a positive electrode plate and a manufacturing method therefor, a battery cell, a battery, and an electrical apparatus. The positive electrode plate includes: a positive electrode current collector; a first coating which is arranged on a surface of at least one side of the positive electrode current collector and includes a first active material; a second coating which includes a second active material that is different from the first active material; and a conductive layer which is arranged between the first coating and the second coating and is used for isolating the first coating from the second coating. The performance of a battery including the positive electrode plate is improved.
Absstract of: EP4664602A1
The present disclosure refers to a battery module (100) with a simple connection structure enabling assembly with fewer steps, including a plurality of battery cells (10), a busbar (1) for contacting the plurality of battery cells (10), a thermally and electrically conducting bushing (2) thermally and electrically fixed to the busbar (1), and a circuit board (3) fixed to the bushing (2) by fixation means such that the bushing (2) spaces the circuit board (3) from the busbar (1), wherein the circuit board (3) includes a temperature sensor (5) configured for contacting the busbar (1) through the bushing (2) in a thermally conducting manner, and a voltage signal line (6) configured for contacting the busbar (1) through the bushing (2) in an electrically conducting manner.
Absstract of: EP4664603A1
A battery cell stack assembly (1) for a battery module or a battery pack, the battery cell stack assembly having a longitudinal extension along a longitudinal direction, a width extension along a width direction (W) and a height extension along a height direction (H), the battery cell stack assembly comprising:- a plurality of prismatic battery cells (2), stacked next to each other in at least three longitudinally extending and parallel battery cell rows (R1, R2, R3),- a bottom support plate (3), wherein the at least three battery cell rows (R1, R2, R3) are supported on a support surface of the bottom support plate which faces upwardly in the height direction (H),- a first cooling plate (4), provided in a first longitudinally extending space (S1) in-between two adjacent battery cell rows (R1, R2) of the at least three battery cell rows (R1, R2, R3), and extending in the longitudinal direction and the height direction (H) such that it forms an intermediate wall between the two adjacent battery cell rows (R1, R2),- a first alignment element (32), provided in the first longitudinally extending space (S1) and below the first cooling plate, as seen in the height direction (H), wherein the first alignment element has an extension in the longitudinal direction corresponding to at least a portion of an extension of the first longitudinally extending space (S1) and is configured to align the two adjacent battery cell rows (R1, R2) with respect to the longitudinal direction (L), and- w
Absstract of: EP4665096A1
Vorgeschlagen wird ein Verfahren und eine Vorrichtung zur Entwärmung eines elektrischen Systems umfassend ein Erfassen einer zeitlichen Vorhersage eines Lastprofils, eine Berechnung einer benötigten Kühlleistung, und eine Anpassung der Kapazität eines Kühlungssystems mittels Ansteuerung dessen Anbindungskomponenten zu weiteren Kühlungssystemen, auf Basis der berechneten benötigten Kühlleistung. Die beschriebene innovative Lösung gestaltet den Wärmefluss von einer Hitzequelle zum Kühler effizienter und berücksichtigt gleichzeitig eine zeitliche Vorhersage der Anwendung, wie beispielsweise eines Lastprofils. Dies wird durch eine Wechselwirkung zwischen Kühlsystemen ermöglicht.
Absstract of: EP4663787A1
The present invention relates to a method for recovering metals from a black mass from spent lithium-ion batteries. In particular, it relates to a method for leaching Co, Ni and Li from a solid S obtainable from a black mass from spent Li-ion batteries, said solid S comprising Ni, Co, Mn and Li, said method comprising contacting the solid S with a sulfur-containing inorganic peracid, such as Caro's acid (peroxymonosulfuric acid), thereby obtaining a solution C comprising Co, Ni, and Li on the one hand, and a solid S" comprising Mn on the other hand.
Absstract of: EP4664567A1
Provided is a metal foil for a current collector that can have increased adhesiveness to an electrode mixture layer while maintaining the discharge capacity of a battery. The metal foil for a current collector according to the present disclosure includes a base material and a plurality of composite bodies held on the surface of the base material. The plurality of composite bodies include Ni particles having an average particle size of 20 µm or less, a sintered body formed by sintering a plurality of the Ni particles, and a resin with a volume% of 14.0 to 40.0. On a surface of the metal foil for a current collector, the number of peaks whose height from the surface of the base material is larger than 10 µm is 20.0 to 50.0 /mm, the peaks being identified through line roughness analysis.
Absstract of: EP4664717A1
An information terminal acquires a plurality of error items indicating an error that has occurred in each of a plurality of batteries determined on the basis of an operation history of a plurality of state items indicating a plurality of states of the plurality of batteries, when selection of one error item of one battery among the plurality of error items having been acquired is received, acquires a related state item indicating a state item related to the one error item selected from among the plurality of state items of the one battery, and displays an operation history of the related state item having been acquired.
Absstract of: EP4664716A1
An information terminal acquires a plurality of abnormal state items indicating a state item for which an abnormal value is detected from among a plurality of state items indicating a plurality of states of a plurality of batteries, upon receiving selection of one abnormal state item of one battery among the plurality of abnormal state items having been acquired, acquires a related state item indicating a state item related to the one abnormal state item having been selected from among the plurality of state items of the one battery, and displays an operation history of the related state item having been acquired.
Absstract of: EP4664659A1
The present disclosure refers to a battery system (100) including a housing (10) and a plurality of battery cells (12) accommodated within the housing (10), each of the battery cells (12) including cell terminals (16), wherein the cell terminals (16) of neighboring battery cells (12) are electrically interconnected via electrical connecting elements (20), each electrical connecting element (20) including a first layer (22) contacting neighboring cell terminals (16) and a second layer (24) disposed on top of the first layer (22), wherein the first layer (22) has a first melting point and the second layer (24) has a second melting point, wherein the second melting point is lower than the first melting point.
Absstract of: EP4663707A1
Provided is a light-curable composition useful as potting compositions in battery assemblies. The composition comprises, optionally, one or more monofunctional (meth)acrylate monomers, a crosslinker selected from multifunctional oligomeric (meth)acrylates, aliphatic urethane (meth)acrylates, aromatic urethane (meth)acrylates, polyester (meth)acrylates, and epoxy (meth)acrylates, one or more adhesion promoters selected from glycidyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate acid phosphate, phosphonate ester-containing (meth)acrylic monomer, phosphate ester-containing (meth)acrylic monomer, silane, and (meth)acrylic acid. The composition further includes a photoinitiator, a flame retardant, and one or more hollow fillers.
Absstract of: EP4663320A1
Die Erfindung betrifft eine Batteriewanne (1) für einen Batterieträger eines Elektrofahrzeuges, wobei die Batteriewanne (1) einen Boden (3) aufweist, und sich einstückig und werkstoffeinheitlich von dem Boden (3) erstreckend eine umlaufende Wand aufweist und optional einen außen umlaufenden von der Wand abstehenden Flansch (6), wobei die Batteriewanne (1) aus einer härtbaren Stahlblechplatine (13) als warmumgeformtes und pressgehärtetes Bauteil hergestellt ist, mit einer Zugfestigkeit Rm größer gleich 1250 MPa, dadurch gekennzeichnet, dass in einem jeweiligen Eckbereich (10) der Seitenwände (4, 5) zueinander die Zugfestigkeit Rm kleiner 1100 MPa ist.
Absstract of: EP4663819A1
A method for fabricating a metal oxide layer involves providing a metallic nitride substrate and performing electrochemical oxidation of the metallic nitride substrate in either an acidic or basic environment to form the metal oxide layer. This electrochemical oxidation process is characterized by a gas-evolving reaction that results in the formation and escape of nitrogen gas from the forming metal oxide layer such that a mesoporous 3D interconnected metal oxide structure comprising a 3D network of interconnected pores is formed. This method enables the creation of metal oxide layers with specific properties suitable for various applications, including but not limited to, use in batteries, and as electrodes in molecular synthesis.
Absstract of: EP4664536A1
The present application relates to a positive electrode sheet and a preparation method therefor, a secondary battery, and an electric device. The negative electrode sheet includes a negative electrode current collector, an active material layer, and a passivation layer, where the active material layer is provided between the negative electrode current collector and the passivation layer; the active material layer includes a negative electrode active material, the passivation layer includes ion resin, and the ion resin includes one or more of carboxymethyl cellulose and a metal salt of carboxymethyl cellulose.
Absstract of: EP4664634A1
A battery (100) and a vehicle (1000) are provided. The battery (100) includes: at least one battery cell (17), a box (1), and a buffer structure (23). The battery cell (17) is arranged in the box (1). The buffer structure (23) is fixedly connected to the box (1), and the buffer structure (23) protrudes out of a side wall of the box (1).
Absstract of: EP4664599A1
The present disclosure relates to a battery module that includes: a cell stack including a plurality of battery cells arranged to be stacked in one direction; a module case configured to accommodate the cell stack; a venting hole formed on the module case and configured to discharge gas generated from the battery cell to the outside of the module case; and a cartridge having at least a portion coupled to the module case and configured to release carbon dioxide stored therein toward the venting hole.
Absstract of: EP4664546A1
A negative electrode for a nonaqueous electrolyte energy storage device according to one aspect of the present invention includes a negative active material layer including negative active material particles, in which the negative active material particles include natural graphite particles, an internal void ratio of the negative active material particles is 2% or less, a pore volume of pores having a pore size of 7.8 nm or less in the negative active material particles is 0.0030 cm<sup>3</sup>/g or less, and a porosity of the negative active material layer is 35% or more and 60% or less.
Absstract of: EP4664636A1
Disclosed are a battery (100) and a vehicle (1000). The battery (100) comprises: a battery box (1) and at least one battery cell (20). The battery box (1) comprises a box body (11) and a top cover (12), the top cover (12) is arranged on the top of the box body (11), and an accommodation cavity (15) is defined between the top cover (12) and the box body (11). All the battery cells (20) are arranged in the accommodation cavity (15), and the upper part of at least some of the battery cells (20) is fixedly connected to the top cover (12).
Absstract of: EP4664598A1
Provided is a secondary battery having improved structural stability. The electrode assembly includes a plurality of negative electrodes each including a negative electrode tab and a plurality of positive electrodes arranged alternately with the negative electrodes and each including a positive electrode tab, a first current collector electrically connected to the negative electrodes, and a first insulator disposed below the first current collector, wherein negative electrode tabs of at least some of the plurality of negative electrodes overlap in a first position to form a first negative electrode tab stack and negative electrode tabs of the others of the plurality of negative electrodes overlap in a second position, different from the first position, to form a second negative electrode tab stack, and the first insulator is disposed adjacent to the first negative electrode tab stack and the second negative electrode tab stack simultaneously.
Absstract of: EP4664653A1
Provided in this application are a composite separator, a secondary battery, and a power consuming apparatus. The composite separator includes a separator substrate and a conductive coating disposed on a side of the separator substrate. The conductive coating in the composite separator is conducive to improving the current density for deposition of metal ions on a negative electrode current collector such that the metal ions are evenly deposited, and is also conducive to reducing an overpotential of a battery including same such that metal dendrites are further alleviated, thereby improving the cycle performance, service life, and safety of the battery.
Absstract of: EP4664566A1
The present disclosure, which relates to a negative electrode for a lithium metal battery, provides a negative electrode comprising a substrate and a porous layer on the substrate wherein the porous layer includes a plurality of metal powders and a plurality of pores, the metal powders having a core part and a shell part coated on at least a portion of the surface of the core part.
Absstract of: EP4664545A1
The present disclosure relates to a negative electrode for a lithium metal battery, the negative electrode comprising a substrate and a porous layer on the substrate, wherein the porous layer contains metal powder and has a porosity of at least 30% determined by XRM analysis in a completely discharged state or prior to the electrodeposition of lithium metal.
Absstract of: EP4664714A1
A charging method and system, an electronic device, and a computer storage medium are disclosed. The system includes a first device (100) and a second device (200). The first device includes a boost chip (730) and a first battery (740). The second device includes a charge pump chip (830) and a second battery (840). The first battery is configured to output a first voltage to the boost chip. The boost chip is configured to: receive the first voltage and output a second voltage to the second device, where the second voltage is greater than the first voltage. The charge pump chip is configured to: receive the second voltage and output a third voltage to the second battery, where the second voltage is M times the third voltage, and M is a positive number greater than 1. The second battery is configured to: receive the third voltage and perform charging.
Absstract of: EP4664657A1
A battery cell, a battery and an electric apparatus, which belong to the technical field of batteries. The battery cell comprises: a casing assembly and a battery cell assembly, wherein the casing assembly comprises a casing and a first terminal arranged on the casing; and the battery cell assembly comprises an active-material coated portion and a conductive portion, the active-material coated portion being accommodated in the casing, the conductive portion being used for electrically connecting to the active-material coated portion and the first terminal, the first terminal being provided with an accommodating portion, and the conductive portion being at least partially accommodated in the accommodating portion. With regard to the battery cell, a conductive portion is at least partially accommodated in an accommodating portion, such that the space occupied by the conductive portion in a casing is reduced, which is conducive to improving the energy density of the battery cell.
Absstract of: EP4664620A1
The present disclosure relates to the technical field of batteries, and more particularly relates to a battery, a battery device and electric equipment. The battery includes a battery housing (10), wherein a surface of the battery housing (10) is provided with an insulating coating (20), and at least a part of a surface area of the battery housing (10) has a single-layer insulating coating, with a unit average size in the single-layer insulating coating being 1 mm<sup>2</sup> to 10 mm<sup>2</sup>.
Absstract of: EP4663602A2
An object of the present invention is to provide a method for recovering lithium iron phosphate powder, which is a positive electrode material, in economical and eco-friendly manner from a waste lithium-ion secondary battery using lithium iron phosphate as a positive electrode material, and to provide recycled lithium iron phosphate powder obtainable therefrom. In order to achieve the above-described object, a method for recycling a waste lithium-ion secondary battery according to the present invention includes (a) loading an object to be heat-treated into a heat-treatment furnace, the object being at least a part of a waste lithium-ion secondary battery in which lithium iron phosphate powder is a positive electrode material, and including the positive electrode material, (b) increasing the temperature inside the heat-treatment furnace to a range of 200 °C to 400 °C, (c) maintaining the increased temperature to heat treat the object to be heat-treated, and (d) discharging first powder produced after the completion of the heat treatment, wherein the first powder includes recycled lithium iron phosphate powder.
Absstract of: EP4664588A2
Embodiments of this application provide a battery cell, a battery, an electric apparatus, and an energy storage apparatus. The battery cell includes a housing and at least one electrode assembly. The electrode assembly is accommodated within the housing. The housing is a right parallelepiped, a size of the housing in a first direction being W1, a size of the housing in a second direction being T1, a size of the housing in a third direction being H1, and the first direction, the second direction, and the third direction being mutually perpendicular. The housing includes a first wall and a second wall disposed opposite each other along the first direction, a third wall and a fourth wall disposed opposite each other along the second direction, and a fifth wall and a sixth wall disposed opposite each other along the third direction, a sum of thicknesses of the first wall and the second wall being a, a sum of thicknesses of the third wall and the fourth wall being b, a sum of thicknesses of the fifth wall and the sixth wall being c, and (W1-a)*(T1-b)*(H1-c)/(W1*T1*H1)≥90%. This allows the volumetric energy density of the battery cell to be increased under the same chemical material system.
Absstract of: EP4663779A1
A method for producing a steel strip for a battery case is provided. The steel strip for a battery case includes the following chemical composition in percentage by mass: carbon: 0.003-0.006%, silicon: ≤0.03%, manganese: 0.35-0.45%, titanium: 0.040-0.050%, aluminum: 0.040-0.060%, phosphorus: ≤0.020%, sulfur: ≤0.012%, nitrogen: ≤0.0040%, and the balance of iron and other inevitable impurities, wherein 7>Ti/(C+N)>5. The process flow of the production is as follows: hot metal pretreatment→ converter smelting → LF refining → RH treatment → continuous pouring → hot rolling → acid pickling → cold rolling → continuous annealing → finishing. By means of designing the chemical composition, the Δr value of strip steel is reduced, and the isotropy and processability of the strip steel are improved; and by means of the process, precise control over steel composition and effective control over the amount and size of inclusions in the steel are achieved, the amount of inclusions in a shallow surface layer of a slab is reduced, the peeling depth is reduced or peeling is avoided, and the yield is increased.
Absstract of: EP4664552A1
Embodiments of the present application relate to the field of batteries, and provide a positive electrode sheet, a battery, and an electrical device. The positive electrode sheet comprises a current collector and an active material layer disposed on at least one side surface of the current collector. In the mixed active material layer, a positive electrode active material comprises a first positive electrode active material and a second positive electrode active material, wherein the average particle size R2 of the second positive electrode active material is greater than the average particle size R1 of the first positive electrode active material, R2/R1 ≥ 2, and the first positive electrode active material or the second positive electrode active material accounts for 55%-95% of the total mass of the positive electrode active material in the mixed active material layer. The positive electrode sheet can not only improve the energy density of the battery, but also ameliorate the impedance deterioration and improve the dynamic performance of the battery.
Absstract of: EP4664587A2
Embodiments of this application provide a battery cell, a battery, an electric apparatus, and an energy storage apparatus. The battery cell includes a housing and at least one electrode assembly. The electrode assembly is accommodated within the housing. The housing is a right parallelepiped, a size of the housing in a first direction being W1, a size of the housing in a second direction being T1, a size of the housing in a third direction being H1, and the first direction, the second direction, and the third direction being mutually perpendicular. The housing includes a first wall and a second wall disposed opposite each other along the first direction, a third wall and a fourth wall disposed opposite each other along the second direction, and a fifth wall and a sixth wall disposed opposite each other along the third direction, a sum of thicknesses of the first wall and the second wall being a, a sum of thicknesses of the third wall and the fourth wall being b, a sum of thicknesses of the fifth wall and the sixth wall being c, and (W1-a)*(T1-b)*(H1-c)/(W1*T1*H1)≥90%. This allows the volumetric energy density of the battery cell to be increased under the same chemical material system.
Absstract of: EP4664586A2
Embodiments of this application provide a battery cell, a battery, an electric apparatus, and an energy storage apparatus. The battery cell includes a housing and at least one electrode assembly. The electrode assembly is accommodated within the housing. The housing is a right parallelepiped, a size of the housing in a first direction being a size of the housing in a second direction being T1, a size of the housing in a third direction being H1, and the first direction, the second direction, and the third direction being mutually perpendicular. The housing includes a first wall and a second wall disposed opposite each other along the first direction, a third wall and a fourth wall disposed opposite each other along the second direction, and a fifth wall and a sixth wall disposed opposite each other along the third direction, a sum of thicknesses of the first wall and the second wall being a, a sum of thicknesses of the third wall and the fourth wall being b, a sum of thicknesses of the fifth wall and the sixth wall being c, and (W1-a)*(T1-b)*(H1-c)/(W1*T1*H1)≥90%. This allows the volumetric energy density of the battery cell to be increased under the same chemical material system.
Absstract of: EP4664590A1
This application relates to an electrolyte and an electrochemical device. Specifically, this application provides an electrolyte including a compound of Formula I-A and a compound of Formula I-B:andwhere based on a mass of the electrolyte,a percentage of the compound of Formula I-A and a percentage of the compound of Formula I-B are each in a range of 0.12% to 5.1%. The electrolyte of this application is conducive to improving the high-temperature storage performance, safety performance, and low-temperature discharge performance of the electrochemical device.
Absstract of: EP4664629A1
A battery (10) has a housing (20), a cell pack (30) supported within the housing (20), and a lid (40) configured to close an open end (21) of the housing (20). A first terminal (71) is supported by the lid (40). A first busbar (61) is configured to electrically couple the cell pack (30) to the first terminal (71). A first electrical component (83, 84, 102) is supported by the lid (40) and electrically coupled between the first busbar (61) and the first terminal (71).
Absstract of: EP4664547A1
An anode active material for a sodium ion energy storage device with improved volumetric capacity, capacity retention, and coulombic efficiency and the method thereof is disclosed. The anode active material comprises an alloying element. The anode active material may further comprise a carbon active material. The alloying element may be selected from phosphorus (P), germanium (Ge), tin (Sn), antimony (Sb), lead (Pb), and bismuth (Bi). The anode comprising the anode active material shows improved capacity retention.
Absstract of: EP4664540A1
A composition for coating a negative electrode dam according to one embodiment of the present disclosure includes a cellulose-based compound.In the composition for coating a negative electrode dam according to one embodiment of the present disclosure, the surface tension is high to the level of a negative electrode slurry, thereby suppressing the occurrence of fat-edge of the negative electrode. Furthermore, the dam coating layer formed from the composition for coating a negative electrode dam shortens the sliding length of the negative electrode active material layer, thereby reducing the risk of NP-ratio inversion of the lithium secondary battery.
Absstract of: EP4664539A1
A composition for coating a negative electrode dam according to one embodiment of the present disclosure is in surface contact with an end of the negative electrode active material layer and includes a hydrophobic powder, a cellulose-based compound, a rubber-based binder, and inorganic particles.The composition for coating a negative electrode dam has excellent surface tension and adhesion, thereby inhibiting the occurrence of a fat-edge of the negative electrode, and the dam coating layer formed from the composition for coating a negative electrode dam has the effect of reducing the sliding length of the negative electrode active material layer.
Absstract of: EP4664614A1
A prismatic power storage device (1; 101) includes a case (4) having a case body (5) and a rectangular plate-shaped lid (6;106), an electrode body (2) housed in the case (4), a positive terminal member (7;107) extending out through a positive-electrode insert hole (6p,106p) provided in the lid (6;106), and a negative terminal member (8;108) extending out through a negative-electrode insert hole (6n;106n). The lid (6;106) includes a first safety valve (6s1;106s1) provided in a center (6C;106C) of the lid (6;106) and to be opened at a first operating pressure (P1), a second safety valve (6s2;106s2) provided on one side (LH1) relative to a central region and to be operated at a second operating pressure (P2) higher than the first operating pressure (P1), and a third safety valve (6s3;106s3) provided on the other side (LH2) relative to the central region and to be operated at a third operating pressure (P3) higher than the first operating pressure (P1).
Absstract of: EP4664627A1
The present invention relates to a secondary battery packaging interleaf and a secondary battery packaging box, and more specifically, relates to a secondary battery packaging interleaf and a secondary battery packaging box, capable of preventing damage to recognition codes of a plurality of accommodated cylindrical battery cells.In order to achieve the above-described objects, according to one example of the present invention, it is possible to provide a secondary battery packaging interleaf comprising a partition wall forming multiple accommodation spaces, in which multiple cylindrical battery cells with printed recognition codes are each accommodated, and provided with a contact prevention portion to be in no contact with the recognition code printed on the outer peripheral surface of the accommodated cylindrical battery cell, and a packaging box comprising the same.
Absstract of: EP4664618A2
The present application relates to a battery cell, a battery, a power consumption apparatus, and a manufacturing method and device of a battery cell. The battery cell includes: a shell comprising a wall part; an electrode assembly disposed within the shell; and an insulating member disposed between the electrode assembly and the wall part to isolate the wall part from the electrode assembly in an insulating manner. The insulating member is configured to elastically support the electrode assembly to buffer vibration of the electrode assembly within the shell. When the electrode assembly vibrates relative to the shell due to shaking or vibrating of the battery cell, the insulating member can buffer the vibration of the electrode assembly, and reduce an amplitude of vibration of the electrode assembly, which alleviates the problem that the electrode assembly pulls the electrode lead-out part to avoid the failure of electrical connection of the electrode assembly and the electrode lead-out part and could also mitigate rigid collision between the electrode assembly and the shell, so as to protect the electrode assembly and prolong the service life of the battery cell.
Absstract of: EP4664551A1
The present invention relates to a method for manufacturing an electrode for a lithium secondary battery, the method including the steps of: preparing a transfer laminate including a lithium metal layer, a release layer, and a base material layer; and transferring the lithium metal layer and the release layer to at least one surface of an electrode active material layer such that the lithium metal layer comes into contact with the electrode active material layer, in which at least one of the lithium metal layer and the release layer transferred to at least one surface of the electrode active material layer includes two or more holes, and the holes have a shortest distance between adjacent holes that satisfies a predetermined distance, enabling lithium byproducts to be reduced; an electrode manufactured by the method; and a lithium secondary battery including the electrode.
Absstract of: EP4664574A1
An assembly method and an assembly apparatus. The assembly method is used for assembling a battery unit; the battery unit comprises a housing and a plurality of battery cell assemblies connected in series and/or in parallel and accommodated in the housing; each battery cell assembly comprises an active substance coating part and a conductive part; the conductive part is located at one end of the battery cell assembly in the first direction and is used for electrically connecting the active substance coating part and an electrode post of the battery unit; the assembly method comprises the following steps: stacking the plurality of battery cell assemblies in a second direction, the second direction being perpendicular to the first direction; electrically connecting the conductive pats of the plurality of battery cell assemblies; and placing the plurality of battery cell assemblies into the housing.
Absstract of: EP4664664A1
A battery cell (20), a battery (100), and an electric device. The battery cell (20) comprises: an electrode lead-out portion (201), used for leading out the electric energy of the battery cell (20); electrode assemblies (22), each comprising a main body (222) and tabs (221), wherein each tab (221) comprises a transition portion (2211) and a connection portion (2212), the transition portion (2211) is bent relative to the connection portion (2212), the transition portion (2211) is connected between the main body (222) and the connection portion (2212), and the connection portion (2212) is adapted to be connected to the electrode lead-out portion (201); and insulating members (24), each arranged on the bent outer side of the corresponding tab (221), wherein each insulating member (24) comprises a first insulator (241), a second insulator (242), and a third insulator (243), the second insulator (242) is connected between the first insulator (241) and the third insulator (243), the first insulator (241) is fixed to the main body (222), the third insulator (243) is fixed to the electrode lead-out portion (201), and at least part of the transition portion (2211) is not fixed to the insulating member (24). The battery cell (20), the battery (100), and the electric device are beneficial to reducing the risk of tearing the tabs (221).
Absstract of: EP4664668A1
The present application provides a battery cell (20), a battery (100), and an electrical device, where the battery cell (20) includes a case (22) and an insulating protective layer (24), the insulating protective layer (24) being disposed on an inner wall of the case (22). In the battery cell (20) provided in the embodiments of the present application, the insulating protective layer (24) is disposed on the inner wall of the case of the battery cell (20), where the insulating protective layer (24) can separate the case (22) from the electrolyte solution inside the case (22), so as to reduce the probability of contact between the case (22) and the electrolyte solution, thereby lowering the probability of corrosion breakdown of the case (22).
Absstract of: EP4664669A1
The present application provides a battery cell (20), a battery (100), and an electrical device. The battery cell (20) includes a shell (21), an electrode assembly (22), a first insulating protective layer (23), and a second insulating protective layer (24). The first insulating protective layer (23) is disposed on an inner wall of the shell (21), and the second insulating protective layer (24) is configured to envelop at least a portion of the electrode assembly (22). The battery cell (20) provided in the embodiments of the present application uses the first insulating protective layer (23) and the second insulating protective layer (24) to separate the shell (21) from the electrode assembly (22), thereby increasing the creepage distance between the shell (21) and the electrode assembly (22). This can achieve the purpose of improving the breakdown voltage resistance between the shell (21) and the electrode assembly (22), thereby effectively enhancing the high-voltage breakdown resistance of the shell (21), and consequently reducing the probability of combustion or explosion of the battery cell (20).
Absstract of: EP4664644A1
A battery pack according to an embodiment of the present disclosure includes at least one battery cell including a vent portion to force gas out; and a pack case which accommodates the at least one battery cell such that the vent portion faces a lower side of the battery pack, with the vent portion exposed from the battery pack.
Absstract of: EP4663307A1
Disclosed herein relates to a die coater, wherein in the second coater shim forming the second slit through which the insulating liquid is discharged, the length L1 of the first sidewall at a relatively distant position from the first slit is longer than the length L2 of the second sidewall at a relatively close position from the first slit.
Absstract of: EP4664535A1
Disclosed herein is a roll press device for performing hot rolling on an electrode coated with electrode active material, wherein, in one example, a pre-heater is disposed upstream of a rolling unit that performs rolling on an electrode transferred in a roll-to-roll manner, and the pre-heater irradiates an infrared laser along a width direction of the electrode surface to heat it as radiant heat.
Absstract of: EP4663583A1
The invention discloses a battery formation device and method. The battery formation device comprises a formation three-dimensional storage and further comprises a battery placing manipulator, a battery taking manipulator, a button cup taking manipulator, a capsule conveying circulating drawstring, a first capsule transfer conveying line and a first capsule conveying drawstring. The battery placing manipulator, the battery taking manipulator and the button cup taking manipulator are all arranged on a formation frame, the battery placing manipulator, the battery taking manipulator and the button cup taking manipulator are all capable of moving forth and back relative to the formation frame, the battery placing manipulator and the battery taking manipulator are arranged side by side left and right, the button cup taking manipulator is located behind the battery placing manipulator and the battery taking manipulator, the capsule conveying circulating drawstring penetrates through the formation frame and is located below the button cup taking manipulator, and the formation three-dimensional storage is arranged behind the formation frame. The formation efficiency is improved, and the labor cost and the labor intensity are reduced.
Absstract of: EP4664622A1
A cover plate (100), a battery (600) and an electronic device is provided. The cover plate (100) includes an integrally formed non-structurally fragile portion (102) and a non-structurally fragile portion (101). The structural strength of the non-structurally fragile portion (101) is lower than the structural strength of the non-structurally fragile portion (102). The non-structurally fragile portion (101) is configured to be destroyed when the battery (600) releases internal pressure. At least part of the outer side of the non-structurally fragile portion (101) is covered with a phosphorus-containing nickel plating layer (103).
Absstract of: EP4664660A1
The present disclosure relates to a secondary battery, and a secondary battery according to one aspect of the present disclosure may include an electrode; an electrode tab including an extension portion extending outward from the electrode and a tab coupling portion provided on one side of the extension portion in the extension direction; an electrode lead coupled to the tab coupling portion and capable of electrically connecting the electrode to the outside; and an auxiliary connecting member coupled to the electrode lead and the extension portion, respectively.
Absstract of: EP4664606A1
The present disclosure provides a battery pack and a device including the same. The battery pack according to an embodiment of the present disclosure comprises: a battery module including a battery cell stack in which a plurality of battery cells are stacked and a module frame in which the battery cell stack is housed; and a pack frame in which the battery module is housed, wherein a cooling flow path through which a coolant flows is formed at the bottom part of the pack frame, an opening is formed at the bottom part of the pack frame, so that the downside part of the module frame and the coolant come into direct contact with each other, and at least one protrusion is formed on the outer surface of the downside part of the module frame.
Absstract of: EP4664595A1
Die vorliegende Erfindung betrifft einen lösungsmittelbasierten Elektrolyt für einen elektrochemischen Energiespeicher, aufweisend wenigstens die folgenden Bestandteile:- wenigstens ein Lösungsmittel; und- wenigstens ein Leitsalz, wobeiwenigstens ein Lösungsmittel der folgenden Formel (1) entspricht:wobei- R und R<sub>1</sub> gleich oder verschieden sind und ausgewählt sind aus der Gruppe bestehend aus H, CH<sub>3</sub>, der Struktur gemäß Formel (3) und der Struktur gemäß Formel (4) oder R und R<sub>1</sub> gemeinsam die Struktur gemäß Formel (2) ausbilden, wobei- die Formel (2) der folgenden Struktur entspricht:- die Formel (3) der folgenden Struktur entspricht:wobei n eine ganze Zahl von 1 bis 10 ist;- die Formel (4) der folgenden Struktur entspricht:wobei in den Formeln (1), (3), und (4) R<sub>2</sub> und R<sub>3</sub> gleich oder verschieden sind und ausgewählt sind aus der Gruppe bestehend aus H, (CH<sub>2</sub>)<sub>x</sub>-CH<sub>3</sub>, wobei x eine ganze Zahl von 0 bis 9 ist.
Absstract of: EP4664559A1
A cathode material and a preparation method thereof, and a lithium ion battery are provided. A volume particle size distribution width of the cathode material is Span, Span=D90−D10D50, and a dissociation degree of the cathode material is β, β=D50Dn50, wherein the cathode material meets the following relationships: 1.1≤β<1.65, and 0.9≤Span≤1.53.The dissociation degree and volume particle size distribution width of the cathode material provided in the present disclosure meet the above conditions, such that it may ensure that the cathode material has a certain electrode plate compaction density to increase an energy density while ensuring the integrity of a crystal structure of the cathode material during charging and discharging of a lithium ion battery, and a gas production value is reduced, thereby causing the cathode material to have excellent cycling performance and safety performance.
Absstract of: EP4664633A1
A module frame for a secondary battery according to various embodiments may be configured to accommodate a battery cell stack including multiple battery cells stacked along one direction, wherein the module frame is formed by a composite material-based plate including fiber reinforced plastic; and the plate includes at least multiple layers including a first layer and a second layer and has a layered cross-section symmetrical in the thickness direction of the plate. In addition, other embodiments are possible.
Absstract of: EP4664344A1
A battery drop simulation method including: generating, by at least one processor, a three-dimensional model including an adhesive member for a battery; receiving, by the at least one processor, information associated with the three-dimensional model; estimating, by the at least one processor, an adhesion coefficient of the adhesive member based on the information associated with the three-dimensional model; performing, by the at least one processor, a drop simulation of the three-dimensional model based on the information associated with the three-dimensional model, the adhesion coefficient, and drop condition information; and outputting, by the at least one processor, a drop simulation result of the drop simulation. The drop simulation result includes information about whether or not the adhesive member is separated due to a drop.
Absstract of: EP4664579A1
The present invention provides a cylindrical battery with expansion tape. The cylindrical battery comprises an outer housing and a wound core accommodated in the outer housing, wherein the wound core is obtained by winding and flattening a positive electrode sheet, a negative electrode sheet and a separator. The wound core comprises a positive electrode end face and a negative electrode end face, and expansion tape is wound around an outer periphery of the wound core. At least at a positive electrode end of the wound core, before expansion of the expansion tape, the top of the expansion tape is level with or higher than the top of the separator. The cylindrical battery with expansion tape of the present invention is able to reduce the risk of short circuits due to aluminum foil folding over and coming into contact with an outer housing, and also conforms to an existing structural tolerance design, so will not give rise to new, secondary problems.
Absstract of: EP4664671A1
The present disclosure relates to a pellet for electrolyte injection configured to connect between an electrolyte supply device for supplying an electrolyte and an open portion formed on one side of a housing of a battery, the pellet including: a hopper having a hollow structure; and a sealing member including a hopper coupling portion coupled to the hopper and spaced apart from the housing and a battery sealing portion configured to seal the open portion and at least partially spaced apart from the hopper coupling portion.
Absstract of: EP4664555A1
The present disclosure relates to a field of batteries, particular to an anode material, a preparation method thereof, and a secondary battery, wherein the anode material includes a silicon-based active material and a matrix material; the anode material includes hydrogen element, halogen element, nitrogen element, and sulfur element, wherein a mass content of the hydrogen element is mH, a mass content of the halogen element is mX, a mass content of the sulfur element is mS, and a mass content of the nitrogen element is mN, and following relational expressions are satisfied: 0.02≤mX/mH≤5.00, 0.0≤mN/mH≤20.00, 0.05≤mS/mH≤5.00. According to the technical solution, by adjusting the contents of the hydrogen element, the nitrogen element, the sulfur element and the halogen element within an appropriate range, the volume expansion of the anode material can be effectively inhibited, and capacity, initial coulombic efficiency, powder conductivity, cycle performance and rate performance of anode material are improved.
Absstract of: EP4664608A1
Embodiments of the present application provide a control method for a refrigeration system, related devices, and a storage medium, involving battery cooling technology. The method includes: in a case that a current ambient temperature being within a first preset temperature range is determined, a water pump of the refrigeration system and a compressor of the refrigeration system are activated; in a case that a first pressure corresponding to the refrigeration system reaching a preset pressure value is determined, a fan of the refrigeration system is activated, so as to maintain a pressure of the refrigeration system within a preset pressure range for cooling a battery management system; in a case that the current ambient temperature being within a second preset temperature range is determined, the water pump of the refrigeration system is activated, and activation of the compressor and the fan is prohibited.
Absstract of: EP4664638A1
A container module is disclosed. The container module according to an embodiment of the present disclosure includes a base frame having a square or rectangular shape; a corner column extended in a top-bottom direction, and connected to a corner of the base frame; a bracket coupled to the corner column, and extended in a front-rear direction; and a battery pack installed on the bracket.
Absstract of: EP4663588A1
A transfer device according to an embodiment of the present disclosure includes a first disk having a disk shape and configured to be rotatable based on the central axis of the disk, a second disk provided above the first disk and having a disk shape, and a gasket interposed between the first disk and the second disk.
Absstract of: EP4664612A1
The present application provides a housing (10), a battery (100), and an electric device, where the housing (10) includes a base plate (110), a mounting beam (130), and a module beam (120), the base plate (110) has a first side surface (111) and a second side surface (112) opposite to each other in a thickness direction (H), a reinforcement structure (113) is provided on the base plate (110), the module beam (120) is disposed on the first side surface (111), the mounting beam (130) is disposed on the second side surface (112), and the reinforcement structure (113) is configured to connect to the mounting beam (130) and/or the module beam (120). The housing (10) provided in embodiments of the present application can utilize the reinforcement structure (113) to connect the mounting beam (130) and/or the module beam (120), thereby enhancing the connection strength between the base plate (110) and the mounting beam (130) and/or the module beam (120), thus achieving the purpose of meeting the high structural strength requirements of the housing (10).
Absstract of: EP4664609A1
An electric battery unit comprises an array of battery cells (2) immersed, within a container (4) of the battery unit (1), in a flow of a temperature regulating fluid, for maintaining the battery unit within a determined range of temperature. Each cell (2) has a positive pole (3P), a negative pole (3N) and a vent valve (V) arranged on a side surface (2C) of the cell, facing a side wall (4A) of the container (4). All the positive poles (3P), all the negative poles (3N) and all the vent valves (V) of the cells (2) are contained within three respective lateral chambers (CP, CN, CV) of the battery unit (1) that are isolated from each other and that are isolated with respect to the spaces (7) between the cells (2). Each of the lateral chambers (CP, CN, CV) communicates with the inlet collector chamber (5) and the outlet collector chamber (6). In the connection between each of the lateral chambers (CP, CN) and the inlet collector chamber (5) and/or the outlet collector chamber (6) at least one restricted passage (90A, 90B, 91A, 91B, 92, 92A, 92B) is inserted, so that the temperature regulating fluid does not tend to flow preferentially through the lateral chambers (CP, CN, CV) rather than through the spaces (7) between the cells (2).
Absstract of: EP4663565A1
Die Erfindung betrifft ein Verfahren zum automatisierten Aufbringen eines selbstklebenden Stanzteils (7) auf ein Fahrzeugelement (1) wie Batteriegehäuse durch eine an einem Roboterarm befestigte Applikationseinheit (100), wobei mittels eines Zylinders (5), aufweisend eine Wirkachse (W) und umfassend einen Vakuumstempel (6), ein selbstklebendes Stanzteil (7) von einem Stanzteilband (8) aufweisend eine Längsrichtung (L) abgelöst wird und dann auf ein Fahrzeugelement (1) aufgestempelt wird,- wobei das Stanzteilband (8) zur Verfügung gestellt wird,- der Vakuumstempel (6) in eine Übernahmeposition bewegt wird,- wobei in der Übernahmeposition ein Vakuum in dem Vakuumstempel (6) aktiviert wird,- das selbstklebende Stanzteil (7) durch Bewegen des Vakuumstempels in Richtung des selbstklebenden Stanzteils (7) mittels des Vakuums am Vakuumstempel (6) fixiert wird,- das selbstklebende Stanzteil (7) von dem Stanzteilband (8) abgelöst wird, indem der Vakuumstempel (6) mindestens so weit wegbewegt wird, dass das selbstklebende Stanzteil (7) vollständig von dem Stanzteilband (8) abgelöst wird, und- der Vakuumstempel (6) in eine Position über das Fahrzeugelement (1) geführt wird und das selbstklebende Stanzteil (7) auf dem Fahrzeugelement (1) aufgebracht wird, indem der Vakuumstempel (6) durch den Zylinder (5) aus der Übernahmeposition entlang der Wirkachse (W) in eine Applikationsposition gebracht wird, in der das selbstklebende Stanzteil (7) auf das Fahrzeugelement (1) gestempel
Absstract of: EP4664568A1
Disclosed are electrode substrates for rechargeable lithium batteries, and rechargeable lithium batteries including the electrode substrates. The electrode substrate for a rechargeable lithium battery includes a support layer that includes a polymer resin matrix and a fiber, and a metal layer on at least one surface of the support layer. An average cross-sectional diameter of the fiber is in a range of about 0.1 µm to about 10 µm.
Absstract of: EP4663606A1
The present invention relates to a method for manufacturing a positive electrode active material and, more specifically, to a method for manufacturing a positive electrode active material, the method comprising the steps of: (A) preparing a lithium composite transition metal oxide by mixing a positive electrode active material precursor and a lithium (Li)-containing raw material and then firing the mixture; and (B) forming a coating layer on the lithium composite transition metal oxide by mixing the lithium composite transition metal oxide and a coating raw material and heat-treating same, wherein the heat treatment includes a temperature increasing section for increasing the temperature and a maintaining section for maintaining the temperature, and includes a section for injecting steam only in the temperature increasing section.
Absstract of: EP4664592A1
The present disclosure relates to a non-aqueous electrolyte including a lithium salt, an organic solvent, and an additive, wherein the additive includes a compound represented by the following Formula 1:In Formula 1 above, R<sub>1</sub> is an allyl group or a propargyl group; R<sub>2</sub>, R<sub>3</sub>, R<sub>4</sub> and R<sub>5</sub> are each independently selected from hydrogen and an alkyl group having 1 to 5 carbon atoms; L is selected from a single bond and an alkylene group having 1 to 10 carbon atoms; and X is selected from -C(=O)-, -S(=O)- and -S(=O)<sub>2</sub>-.
Absstract of: EP4664643A1
Disclosed in the present application are a battery cell, a battery and an electric device. The battery cell comprises: a case, the case comprising a first wall portion, a second wall portion and a third wall portion; a pressure relief mechanism, the pressure relief mechanism being arranged at the first wall portion; and an electrode assembly, which is accommodated in the case, wherein the electrode assembly comprises at least one negative electrode sheet, an active material layer is formed on at least one side of the negative electrode sheet, and in a second direction, the first wall portion is arranged facing an edge of the negative electrode sheet; in the second direction, the minimum distance between the pressure relief mechanism and an edge of the active material layer is D, and 3 mm≤D≤15 mm; on the basis of the total mass of the active material layer, the mass proportion of an active material is S, and 0.5%≤S≤25%; and in a first direction, the minimum distance between an edge of the pressure relief mechanism and an outer surface of the second wall portion or an outer surface of the third wall portion is d, and 3 mm≤d≤20 mm.
Absstract of: EP4664557A1
A cathode material, a cathode slurry and a lithium ion battery provided. The cathode material has a general chemical formula of where 0.80≤σ≤1.20, a+b+c+x+y+z=1, 0.6≤a≤1.0, 0.0≤b≤0.10, 0.0≤c≤0.3, 0
Absstract of: EP4663670A1
Proposed is a copolymer including a main chain including a first monomer unit based on styrene, a second monomer unit containing a hydroxy group and having 4 or more and 7 or fewer carbon atoms, and a third monomer unit containing a double bond and having 4 or more and 7 or fewer carbon atoms, wherein the second monomer unit of the main chain includes a grafted polymer chain. In addition, proposed are a negative electrode slurry, a negative electrode, and a secondary battery, each including the copolymer.
Absstract of: EP4664654A1
This application provides a battery, including a negative electrode plate and a separator. The negative electrode plate includes a negative active substance layer and a functional layer that are stacked. The functional layer includes Mg<sup>2+</sup>, where some of the Mg<sup>2+</sup> is embedded in the negative active substance layer. The separator includes a base film and a coating layer located on a surface of the base film, and the coating layer bonds the base film and the functional layer. The coating layer includes a polymer material. The polymer material is coordination-crosslinked with at least some of the remaining Mg<sup>2+</sup> in the functional layer. The polymer material in the coating layer performs a coordination crosslinking reaction with the Mg<sup>2+</sup> in the functional layer, so as to effectively increase binding strength between the negative electrode plate and the separator, thereby helping prevent deformation of the battery during a cycle process. In addition, after ionization of the polymer material, ionic conductivity performance of the polymer material can be effectively improved, and internal resistance of the battery is reduced, thereby improving fast charging performance of the battery. This application further provides a terminal apparatus including a battery and a method for manufacturing a battery.
Absstract of: EP4664666A1
This application pertains to the technical fields of batteries (100), and provides a battery cell (10), a battery (100), and an electric device. The electric device includes a battery (100), the battery (100) includes a battery cell (10), and the battery cell (10) includes a casing (12), an electrode assembly (11), an electrode terminal (13), an adapter (14), and an insulating member (15). The electrode assembly (11) is disposed within the casing (12). The adapter (14) is disposed within the casing (12) and conductively connected to the electrode assembly (11) and the electrode terminal (13). The insulating member (15) is disposed within the casing (12) and at least partially located between the adapter (14) and the casing (12), and at least a portion of the insulating member (15) is spaced apart from the adapter (14). Spacing at least the portion of the insulating member (15) apart from the adapter (14) can mitigate the problem that heat from the adapter (14) being conducted to the insulating member (15) causes failure of insulation performance of the insulating member (15).
Absstract of: EP4664597A1
The present application discloses a battery cell, a battery, and an electric device. The battery cell comprises: a casing, the casing comprising a first wall portion; a pressure relief mechanism, the pressure relief mechanism being arranged on the first wall portion; and an electrode assembly, being accommodated in the casing, the electrode assembly comprising at least one negative electrode sheet, the first wall portion facing the edge of the negative electrode sheet, an active material layer being formed on at least one side of the negative electrode sheet, the active material layer comprising a first region and a second region which are arranged in a first direction, the second region being closer to the first wall portion than the first region, the first direction being parallel to the thickness direction of the first wall portion, and in a full-charge state, the thickness of the second region being a µm, and the thickness of the first region being b µm, wherein b-a≥5 µm.
Absstract of: EP4663817A1
A surface-treated steel sheet according to one aspect of the present invention is a surface-treated steel sheet including: a base steel sheet; a Ni-containing layer disposed on a surface of the base steel sheet; and a Ni-W alloy layer disposed on a surface of the Ni-containing layer, wherein the Ni-containing layer includes an Fe-diffused alloy layer, and a number density of pinholes on a surface of the Ni-W alloy layer is 4.0 /cm<sup>2</sup> or less. Preferably, an average W concentration in the Ni-W alloy layer is 10 to 45 mass%. Preferably, an attached amount of Ni included in the Ni-containing layer and the Ni-W alloy layer is 1.8 to 35.6 g/m<sup>2</sup>.
Absstract of: EP4663816A1
A surface-treated steel sheet according to one aspect of the present invention is a surface-treated steel sheet including: a base steel sheet; a Ni-containing layer disposed on a surface of the base steel sheet; and a Ni-W alloy layer disposed on a surface of the Ni-containing layer, wherein the Ni-containing layer includes an Fe-diffused alloy layer, and the surface-treated steel sheet includes a W depletion layer in a range from a surface of the Ni-W alloy layer to a depth of 10 nm. In a method for manufacturing a surface-treated steel sheet according to another aspect of the present invention, an atmospheric dew point in annealing is set to -25 to 5°C, a soaking time in the annealing is set to 10 to 180 seconds, and a maximum temperature in the annealing is set to 630 to 860°C.
Absstract of: EP4664560A1
To provide an active material and a solid electrolyte capable of improving the performance of lithium sulfur batteries. An active material comprising: a compound; andan electroconductive material, wherein the compound contains a lithium (Li) element, a sulfur (S) element, a phosphorus (P) element, an iron (Fe) element, and a halogen (X) element, the compound has a peak at positions 2θ = 27.1° ± 0.5° and 31.4° ± 0.5° in an X-ray diffraction pattern measured with an X-ray diffractometer using Cu Kα1 radiation, and the active material satisfies relationship (1), (2), (3) and (4) shown below: (1) 5.8 ≤ Li/(Fe+P) ≤ 10.0, (2) 0.1 ≤ X/(Fe+P) ≤ 1.4, (3) 0.2 ≤ X+Fe ≤ 2.0, (4) 0.0 < Fe/(Fe+P) < 1.0, wherein (1) defines a molar ratio of the lithium (Li) element to a sum of the iron (Fe) element and the phosphorus (P) element, (2) defines a molar ratio of the halogen (X) element to the sum of the iron (Fe) element and the phosphorus (P) element, (3) defines a sum of mole numbers of the halogen (X) element and the iron (Fe) element, and (4) defines a molar ratio of the iron (Fe) element to the sum of the iron (Fe) element and the phosphorus (P) element.
Absstract of: EP4664689A1
A rotary connector in which relative movement between a rotary spacer and an outer peripheral electrode or an inner peripheral electrode is favorable is provided. A rotary connector 1 includes an annular outer peripheral electrode 30, an inner peripheral electrode 2 inserted into the outer peripheral electrode 30 and arranged so as to be turnable relatively to the outer peripheral electrode 30, a plurality of roller current collectors 4 arranged in the circumferential direction between the outer peripheral electrode 30 and the inner peripheral electrode 2, the roller current collectors being in contact with the outer peripheral electrode 30 and the inner peripheral electrode 2, rotary spacers 5 each of which is arranged between the roller current collectors 4, and a pair of guide plates 31, 32 that support the rotary spacers 5 on both sides in the axial direction, and an orbital path of the rotary spacers 5 and an orbital path of the roller current collectors 4 are different from each other.
Absstract of: EP4663285A1
A slurry homogenization process and a use thereof, including the following steps: performing a first pre-mixing on a main material, a first conductive agent, and a binder to obtain a first mixture, while performing a second mixing on a first solvent independently; adding the first mixture into the first solvent, and sequentially performing a second pre-mixing and a first dispersing to obtain a third mixture; and adding a conductive slurry into the third mixture, sequentially performing a third pre-mixing and a second dispersing, and defoaming and cooling to obtain a homogenized slurry.
Absstract of: EP4664601A1
This application provides a battery and a charging method thereof, a battery management system, and an electric device, capable of improving charging performance of the battery. The battery includes at least one battery cell and a battery management system. A positive electrode active material of the battery cell includes LiMPO<sub>4</sub>, and M includes element Mn and element Fe. The battery management system is configured to: when an SOC of the battery is less than or equal to a preset SOC threshold, control the battery to charge based on a first charging current so as to heat the battery during a charging process; and when the SOC of the battery is greater than the SOC threshold, control the battery to charge based on a second charging current, where the first charging current is greater than the second charging current.
Absstract of: EP4664582A1
A battery cell, a battery, and an electric device, relating to the technical field of batteries. The battery cell comprises a housing assembly, an electrode assembly, and a current collector assembly. The housing assembly comprises an electrode lead-out portion for inputting or outputting electric energy. The electrode assembly is accommodated in the housing assembly. The electrode assembly comprises a main body and a tab, and the tab is provided on the main body. The materials of the tab and the electrode lead-out portion are different. The current collector assembly comprises an additional portion of the same material as the electrode lead-out portion and a main body portion of the same material as the tab. The additional portion is connected to the main body portion. The additional portion is connected to the electrode lead-out portion in a welded manner. The main body portion is connected to the tab in a welded manner. By configuring the additional portion and the electrode lead-out portion to be made of the same material and welded to each other, phenomena such as different melting points and coefficients of thermal expansion caused by welding of the current collector assembly and the electrode lead-out portion of different materials are alleviated, thereby reducing welding cracks between the current collector assembly and the electrode lead-out portion, and reducing the risk of electrolyte leakage in the battery cell.
Absstract of: EP4664639A1
Provided are a CTP battery pack and a vehicle having the CTP battery pack. The CTP battery pack includes a housing (1) and at least one battery cell module (2). The housing (1) has at least one first accommodating cavity (15). Each battery cell module (2) is disposed in one first accommodating cavity (15) of the at least one first accommodating cavity (15). The at least one first accommodating cavity (15) is filled with foam (3).
Absstract of: EP4663469A1
A vehicle includes a battery and a computer system that obtains battery state information related to a state of the battery from the battery, at least partially processes a calculation related to energy management of the vehicle by using the battery state information, and provides the battery with result information obtained by processing the calculation.
Absstract of: EP4664538A1
Disclosed is a negative electrode mixture constituting a negative electrode layer, the negative electrode mixture containing: particles of a solid electrolyte; and particles of an electroconductive material which are disposed on a surface of the particles of the solid electrolyte. Preferably, the solid electrolyte includes a crystal phase having an argyrodite-type crystal structure. Preferably, the electroconductive material is a carbon material or a metal material. Also preferable is a slurry containing: the negative electrode mixture; a binder; and a solvent, wherein the slurry has a viscosity of from 0.05 to 3 Pa·s at 25°C and at a shear rate of 10 (1/s).
Absstract of: EP4664548A1
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 (D<sub>90</sub>-D<sub>10</sub>)/D<sub>50</sub> is less than 10.0, where D<sub>10</sub>, D<sub>50</sub>, and D<sub>90</sub> 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 D<sub>95</sub> 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.
Absstract of: EP4663319A1
A method for manufacturing a cylindrical member (10) includes a preparation step of preparing a workpiece (20) and a bending processing step of bending an end portion (23) of the workpiece (20) to an inner circumferential side using a lower die (40) and an upper die (30). A recessed processing surface (31) of the upper die (30) includes a first portion (311) and a second portion (312). The first portion (311) extends toward a side opposite to the workpiece (20) in the axial direction and toward the inner circumferential side of the workpiece (20). The second portion (312) has a linear shape and extends from the first portion (311) to the inner circumferential side of the workpiece (20). In the bending processing step, the first portion (311) guides the end portion (23) to the inner circumferential side of the workpiece (20), and the second portion (312) clamps the end portion (23) together with the lower die (40).
Absstract of: EP4664594A1
A nonaqueous electrolyte solution capable of improving a low-temperature (-30°C) output characteristic after a high-temperature (70°C) storage test (resistance after high-temperature storage) and a post-overdischarge discharge capacity retention rate after a high-temperature (70°C) storage test in a well-balanced manner and a nonaqueous electrolyte solution battery are provided. A nonaqueous electrolyte solution containing (1-1) a compound represented by the general formula 1a described in the specification and (I-2) at least one selected from the group consisting of a compound represented by the general formula 1b and a compound represented by the general formula 1b' in which a (I-2) content in the nonaqueous electrolyte solution is 10 to 25000 ppm by mass.
Absstract of: EP4664580A1
A battery 100 of the present disclosure includes a positive electrode 23, a negative electrode 26, a separator 27, and an electrolyte solution 29. The positive electrode 23 includes, as a positive electrode active material, a lithium oxide in which a transition metal is dissolved to form a solid solution, the lithium oxide having an antifluorite crystal structure. The electrolyte solution 29 includes at least one additive selected from the group consisting of an organophosphorus compound and an organophosphite compound. The electrolyte solution 29 may further include a non-aqueous solvent, and the additive may be dissolved in the non-aqueous solvent.
Absstract of: EP4663587A1
Die Erfindung betrifft einen Greifer (10) zum Aufnehmen und Greifen von einzelnen blattförmigen Elektroden (50) im Zuge der Herstellung einer Batteriezelle, mit einer Saugvorrichtung (14) zum Ansaugen der jeweils zu greifenden Elektrode (50). Um ein prozesssicheres Zuführen aus einem Magazin vereinzelter Elektroden bei hoher Qualität des herzustellenden Batteriestapels zu ermöglichen schlägt die Erfindung gemäß einer Alternative vor, dass der Greifer (10) ein erstes Greifersegment (26.1) und ein zweites Greifersegment (26.2) aufweist, wobei die Saugvorrichtung (14) eine an dem ersten Greifersegment (26.1) angeordnete erste Saugeinrichtung (28.1) zum Ansaugen eines ersten Bereichs der zu greifenden Elektrode (50) und eine an dem zweiten Greifersegment (26.2) angeordnete zweite Saugeinrichtung (28.2) zum Ansaugen eines zweiten Bereichs der zu greifenden Elektrode (50) aufweist, wobei der Greifer (10) weiter eine Verschiebeeinheit (16) zum relativen Verschieben des ersten und zweiten Greifersegments (26.2, 26.2) mit wenigstens einer Richtungskomponente parallel zur Oberfläche der zu greifenden Elektrode (50) aufweist.
Absstract of: EP4663451A1
A temperature management system and method for regulating the temperature of a thermal load. The temperature management system comprises a closed circuit and a main coolant pump configured to circulate a coolant through the closed circuit, wherein the closed circuit and the thermal load are thermally connected. The temperature management system is characterized in that a section of the closed circuit is divided into a main branch and a temperature management branch, wherein the main branch is configured to hold a constant differential pressure between its starting point and its endpoint independent of variations in flow and the temperature management branch comprises a cooling and/or heating module. In addition, a flow control module is configured to control the flow of coolant through the temperature management branch, such that a regulated flow that is associated with a target flow rate is directed through the temperature management branch while any remaining flow is directed through the main branch.
Absstract of: EP4664744A1
There is provided a battery module comprising: a housing, a first group of energy source units, wherein the energy source units are arranged in the housing along a first direction and connected in series, a second group of energy source units, wherein the energy source units are arranged in the housing along the first direction and connected in series and a third group of energy source units, wherein the energy source units are arranged in the housing along the first direction and connected in series, wherein the first group of energy source units is configured to output a first output voltage of the battery module for constituting a first phase of an AC signal, wherein the second group of energy source units is configured to output a second output voltage of the battery module for constituting a second phase of the AC signal, and wherein the third group of energy source units is configured to output a third output voltage of the battery module for constituting a third phase of the AC signal.
Absstract of: EP4663607A1
The present application provides a precursor material and a preparation method therefor, a positive electrode material, a secondary battery, and a power consuming apparatus. The precursor material has a chemical formula of NixCoyMnzMa(OH)2, where element M includes at least one of Zr, Y, Al, Ti, W, Sr, Ta, Mo, Sb, Nb, Na, K, Ca, Ce, and La, 0.55≤x<1.0, 0≤y<0.45, 0≤z<0.45, 0
Absstract of: EP4664542A1
The present application provides a positive electrode active material composition, a positive electrode plate, a battery, and an electrical apparatus. The positive electrode active material composition comprises a first positive electrode active material and a second positive electrode active material having different crystal form from the first positive electrode active material. The second positive electrode active material comprises a phosphate material, and the positive electrode active material composition satisfies: Dv10(1)/Dv50(2)>1, Dv50(1)/Dv50(2)≥1.4 and -2.0≤1 - (ρ2×W2)/(ρ1×W1)≤0.98. Above parameters are as defined herein, respectively.
Absstract of: EP4664493A1
Provided are an ion conductor whose lithium ion conducting property can be controlled, a composite, a sheet, an electrode, a separator, and a power storage device. The ion conductor (10) contains a solid electrolyte (19) which has a garnet-type crystal structure containing Li, La, Zr, and O, wherein lithium carbonate (19a) is partially present on a surface of the solid electrolyte. The composite (19d) contains the ion conductor and an ionic liquid containing a lithium salt dissolved therein, wherein the ionic liquid contains a fluorine-based anion, and, in a film (19c) which covers the surface of the solid electrolyte, the relative concentration ratio of a fluoride to carbonate ions is 0.1 or greater. The power storage device (11) includes the ion conductor.
Absstract of: EP4664589A1
To provide an assembly composite, a sheet, a separator and an electrode in which dendritic growth of metallic Li is suppressed, and a power storage device. The assembly composite (10) which contains oxide grains (19) having a garnet-type crystal structure (22) containing Li, La, and Zr, and inorganic grains composed of a main-group element including Mg. The median diameter of the inorganic grains is 1/2 or less the median diameter of the oxide grains. The volume ratio of the inorganic grains to the oxide grains is 1 vol% or more and 10 vol% or less. The power storage device (11) includes the assembly composite.
Absstract of: EP4664544A1
The present invention relates to a negative electrode for a lithium-ion battery, said negative electrode including carbon and silicon, wherein: the negative electrode has a silicon concentration of 2-80 mass% in a negative electrode material layer, and a half-value width of 3.0 deg. or more of a peak in a (111) surface of Si in an XRD pattern in which Cu-Kα lines of the negative electrode are used; and, when performing a charging and discharging test under predetermined conditions using a battery in which the negative electrode, a separator, and a positive electrode are stacked, and an electrolyte solution in which a supporting lithium salt is dissolved in a carbonate solvent is used, and the capacity retention of the battery is 95%, in an X-ray photoelectron spectroscopy (XPS) spectrum of the negative electrode surface, the relationship I528(O1s)/I531(O1s)≥0.1 holds, where I528(O1s) is the peak height near a binding energy of 528 eV, and I531(O1s) is the peak height near 531 eV.
Absstract of: EP4664600A1
A battery system is mounted on an electric vehicle. The battery system includes a secondary battery (2) and a battery control unit. The battery control unit controls the secondary battery (2) to perform a high-rate discharge when the electric vehicle is started. A positive electrode (4) of the secondary battery (2) has a first active material (41) and a second active material (42). The second active material (42) has a high resistance region in which a resistance is higher than that of the first active material (41) in a high-rate discharge region which is the SOC region of the secondary battery (2) where high-rate discharge is performed at startup time. The secondary battery (2) is configured so that, when high-rate discharge is performed at startup time, after the utilization rate of the second active material (42) becomes higher than the utilization rate of the first active material (41), the utilization rate of the first active material (41) becomes higher than the utilization rate of the second active material (42).
Absstract of: EP4663664A1
Disclosed are a carboxylmethyl cellulose lithium salt, a method of manufacturing the carboxylmethyl cellulose lithium salt, a negative electrode including the carboxylmethyl cellulose lithium salt, and a rechargeable lithium battery. The method of manufacturing a carboxylmethyl cellulose lithium salt includes performing an alkalization reaction of cellulose and lithium hydroxide, performing an etherification reaction with a halogen-containing acetic acid or a salt thereof, wherein an amine derivative is added during the alkalization reaction or the etherification reaction, and an amount of the halogen-containing acetic acid or a salt thereof added relative to the lithium hydroxide is controlled to a given amount.
Absstract of: EP4664572A1
A battery cell, a battery, and an electric device. The battery cell comprises a casing, a pressure relief structure and an electrode assembly, wherein the casing is provided with a first wall; the pressure relief structure is arranged on the first wall; and the electrode assembly is arranged in the casing and comprises a plurality of electrode sheet layers stacked in a first direction, the plurality of electrode sheet layers including cathode electrode sheet layers and anode electrode sheet layers, each electrode sheet layer comprising an electrode sheet body, a first active material layer and a second active material layer, the first active material layer and the second active material layer being respectively arranged on two sides of the thickness of the electrode sheet body, at least one electrode sheet layer being constructed as a first preset electrode sheet layer, the distance between the first active material layer of the first preset electrode sheet layer and the first wall being greater than the distance between the second active material layer of the first preset electrode sheet layer and the first wall, and the first direction being parallel to a plane where the first wall is located.
Absstract of: EP4664607A1
There is described a battery module comprising: an array of battery cells electrically coupled to provide electrical power to a load; a cell space housing the array of battery cells, the cell space arranged to receive flow of a coolant fluid past the battery cells; the battery cells mounted on a base of the cell space, the base comprising one or more flow paths for the coolant fluid; one or more inlets to receive the coolant flow into either the cell space or the base; one or more outlets to deliver the coolant flow out of the other of the cell space or the base; and one or more fluid flow couplings between the cell space and the base to direct flow of coolant fluid between the base and the cell space. The inlets, outlets and fluid couplings may be arranged to provide counterflow cooling such that flow of coolant in the base is in the opposite direction to the flow of coolant in the cell space.
Absstract of: EP4664721A1
In order to improve high voltage DC systems the invention proposes an energy storage circuit for an energy storage module (18) comprising:- a positive terminal (26) and a negative terminal (28);- an energy storage assembly (30) configured for storing electrical energy, the energy storage assembly (30) including at least one energy storage cell and at least one sensor (35);- a switching assembly (36) that is switchable into any of an operational state and a bypass state and optionally a cross-conduction state, wherein in the operational state the switching assembly (36) electrically connects the energy storage assembly (30) to the positive and negative terminals to supply them with electrical power, wherein in the cross-conduction state the switching assembly (36) short-circuits the energy storage assembly (30), wherein in the bypass state the switching assembly (36) allows a direct electrical connection between the positive terminal (26) and the negative terminal (28); and- a energy storage local control unit (24) that is configured for detecting a fault condition of the energy storage assembly (30) based on the at least one sensor (35), and upon detecting the fault condition, for causing, preferably initiating, the switching assembly (36) to progress from the operational state through the cross-conduction state into the bypass state.
Absstract of: EP4664635A1
The present disclosure provides a battery module comprising: a cell assembly including a plurality of battery cells; and a busbar assembly including a busbar electrically connected to at least one of the plurality of battery cells, and a busbar holder including a base located on the cell assembly and a protrusion part extending from the base and connected to the busbar. The plurality of battery cells may include a first battery cell and a second battery cell adjacent to the first battery cell. The busbar may include a first connection part connected to the first battery cell, a second connection part connected to the second battery cell, and a buffer part located between the first connection part and the second connection part. The protrusion part may be connected to the buffer part.
Absstract of: EP4664218A1
Example embodiments provide a method of displaying an intermediate roll map. The method includes: transmitting an application programming interface (API) call to a server storing coordinate-related measurement data, in which the coordinate-related measurement data includes measurement data collected based on measurement of an electrode sheet and coordinates related to the measurement data; transmitting the coordinate-related measurement data in response to the API call; and displaying the coordinate-related measurement data.
Absstract of: EP4664663A1
A soldering structure and a soldering method for a battery cell, and a battery are provided, relating to the field of battery technology. The soldering structure for the battery cell includes a wound body; full electrode tabs, formed at ends of the wound body; and current collecting parts, soldered to sides, facing away from the wound body, of the full electrode tabs to form multiple solder joints; in which the multiple solder joints are arranged at equal arc distances along a winding direction of the wound body. The multiple solder joints are arranged at equal arc distances along the winding direction of the wound body, so that the solder joints can be uniformly distributed on the full electrode tabs along the winding direction, and a current can be uniformly transmitted into the wound body through the full electrode tabs, reducing the current loss.
Absstract of: EP4664578A1
The present disclosure relates to an electronic assembly including a first electrode including a first uncoated portion, a first flag portion formed by extending a part of the first uncoated portion, and a first extension portion connecting the first uncoated portion and the first flag portion, a second electrode, and a separator arranged between the first electrode and the second electrode, wherein the first electrode, the second electrode, and the separator are wound in a form of a roll around a virtual winding center, and wherein the first flag portion comprises at least one inner bent region bent in the winding center direction and at least one outer bent region bent in an opposite direction to the winding center direction.
Absstract of: EP4664498A1
In order to improve thermo-electrical properties of energy storage cells, the invention proposes a method for welding at least one cell component (26) to an electrode assembly (18) of an energy storage cell (10), preferably a supercapacitor, the method comprising arranging each cell component (26) and the electrode assembly (18) in contact with each other, wherein each cell component (26) has an exposed welding surface (30) that is accessible for welding by a welding implement; moving the welding implement relative to the welding surface (30) to weld each cell component (26) to the electrode assembly (18) by forming a plurality of weld seams on the welding surface (30), wherein at least two of the formed weld seams are chosen from a group of weld seam types consisting of a transport weld seam that has a main directional component along a radial direction of the electrode assembly (18); and a collector weld seam (39) that has a main directional component along a circumferential direction of the electrode assembly (18).
Absstract of: EP4664565A1
A main object of the present disclosure is to provide a mixture with which an electrode layer and an electrolyte layer with excellent ion conductivity are obtained. The present disclosure achieves the object by providing a mixture including a first solid electrolyte and a second solid electrolyte, wherein the first solid electrolyte and the second solid electrolyte contain Li, P, and S, and have an argyrodite type crystal structure; the first solid electrolyte includes an anion component including B; and the second solid electrolyte does not include an anion component including B.
Absstract of: EP4664575A1
The present invention relates to an electrode assembly manufacturing plate, which includes a support plate, a sub-plate provided on one surface of the support plate, and a distance control unit provided on the support plate and configured to push a part of an opposing surface to a surface of the sub-plate, which is opposite to the support plate, from the support plate so that a distance from a part of the opposing surface to the support plate is different from a distance from the remaining portion to the support plate, an electrode assembly manufacturing apparatus including the same, and an electrode assembly manufacturing method.
Absstract of: EP4664625A1
Disclosed are a secondary battery pocket portion sealing apparatus for sealing a sealing portion of a second pocket portion for gas capture, the secondary battery pocket portion sealing apparatus including a first sealing unit including a first sealing tool disposed on one side of the sealing portion so as to press and heat the sealing portion such that the sealing portion is sealed, a friction pad portion connected to the first sealing tool, the friction pad portion including a first friction pad and a second friction pad disposed at both ends of one surface of the sealing portion, and a driving member configured to move the first sealing tool and the friction pad portion to one side or the other side, and a second sealing unit including a second sealing tool disposed on the other side of the sealing portion so as to press and heat the sealing portion such that the sealing portion is sealed, and a secondary battery pocket portion sealing method using the same.
Absstract of: EP4664665A1
Disclosed are a cylindrical battery cell, a battery pack and vehicle including the same, and a collector board. A cylindrical battery cell according to an embodiment of the present disclosure includes: an electrode assembly configured in a structure in which a positive electrode plate, a negative electrode plate, and a separator interposed between the positive electrode plate and the negative electrode plate are wound in one direction; a cylindrical battery can configured to store the electrode assembly and having a through-hole formed thereon; a positive electrode collector board electrically connected to the positive electrode plate; a cell terminal connected to the positive electrode collector board through the through-hole of the battery can; and a negative electrode collector board electrically connected to the negative electrode plate, wherein a breaking induction portion is formed on the positive electrode collector board or the negative electrode collector board so that at least a portion of the positive electrode collector board or the negative electrode collector board is broken by gas generated inside the battery can.
Absstract of: EP4664667A1
The present application is applicable to the technical field of batteries, and provides a battery cell, a battery, and an electrical apparatus. The battery cell comprises a shell, an electrode assembly, an insulating structure, and a separation structure. The shell has an inner cavity, and the shell has a first wall; the electrode assembly is provided in the inner cavity; both the separation structure and the insulating structure are provided between the electrode assembly and the first wall; one of the insulating structure and the separation structure is provided with at least two first through holes, and the other is provided with second through holes respectively corresponding to the first through holes; the second through holes comprise an alignment hole, and the cross-sectional area of the alignment hole is greater than that of the corresponding first through hole, or the cross-sectional area of the alignment hole is greater than that of other second through holes. Since the battery cell provided in the present application is provided with the alignment hole, at least two positioning pins may be inserted between the insulating structure and the separation structure for positioning, resulting in more effective positioning.
Absstract of: EP4664907A1
An image processing apparatus and an electrical connection mechanism, the image processing apparatus comprising an apparatus body, wherein the apparatus body is provided with a connection compartment, and the connection compartment is provided with an internal connecting assembly, the internal connecting assembly being electrically connected to both a power supply circuit and data communication circuit of the apparatus body. The image processing apparatus further comprises an external connecting assembly for detachably connecting to the connection compartment, the external connecting assembly being a power supply assembly or communication assembly. When the power supply assembly connects to the connection compartment, the power supply assembly electrically connects to the power supply circuit of the apparatus body by means of the internal connecting assembly and supplies power to the power supply circuit; when the communication assembly connects to the connection compartment, the communication assembly electrically connects to the data communication circuit of the apparatus body by means of the internal connecting assembly and performs data communication with the data communication circuit. While realizing the basic functions of power supply and data communication, the present invention can expand product usage forms, and also enables the product size to be minimized, thereby realizing a miniaturized product design.
Absstract of: EP4663789A1
The present disclosure provides an aluminum alloy plate for a case (610) of a secondary battery. The aluminum alloy plate includes 1.25 wt% to 1.5 wt% of manganese (Mn), and 0.6 wt% to 0.8 wt% of magnesium (Mg).
Absstract of: EP4663471A1
Die Erfindung betrifft eine Vorrichtung zum Heizen einer Traktionsbatterie (2) für ein Elektro- oder Hybridfahrzeug, wobei die Vorrichtung mindestens eine Einrichtung (7) zur Erfassung oder Ermittlung einer Temperatur der Traktionsbatterie (2), einen Kühlkreislauf (9) und mindestens eine elektrische Komponente mit mindestens einem GaN-Leistungstransistor (11) oder SiC-Leistungstransistor aufweist, wobei die Traktionsbatterie (2) und die elektrische Komponente mit dem Kühlkreislauf (9) thermisch gekoppelt sind, wobei in einem Betriebszustand der mindestens eine GaN- oder SiC-Leistungstransistor in Rückwärtsrichtung betrieben wird, wobei eine Steuereinrichtung (10) des mindestens einen GaN- oder SiC-Leistungstransistor derart ausgebildet ist, in Abhängigkeit der Temperatur der Traktionsbatterie (2) den GaN- oder SiC-Leistungstransistor für eine vorbestimmte Zeit in Rückwärtsrichtung keine Gate-Source-Spannung zuzuführen, wobei die vorbestimmte Zeit größer als eine initiale Delay-Zeit ist, sowie ein Verfahren.
Absstract of: EP4664129A1
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 negative electrode loading amount of the target cell.
Absstract of: EP4664576A1
The present invention relates to an all-solid-state battery pressurization system comprising: a jig for pressurizing an all-solid-state battery vertically; and a hydraulic press for applying a uniform pressure to the jig, wherein the uniform pressure is applied to the jig by the pressure applied by the hydraulic press.
Absstract of: EP4663322A1
Embodiments of the present disclosure relate to an electrode plate notching device capable of automatically correcting a bias of a press pressure transmitted to a mold during a notching process of an electrode plate, thereby preventing or reducing molding errors. An electrode plate notching device includes a lower press, a first mold seated on the lower press and including a punch hole, a second mold movable up and down above the first mold and including a punch, an upper press arranged above the second mold and movable vertically, and a correction unit connecting the upper press to the second mold and capable of multi-axis alignment.
Absstract of: EP4664133A1
A battery diagnosis apparatus according to an embodiment disclosed herein includes an information obtaining unit configured to obtain feature data of each of a plurality of battery cells and a controller configured to extract a latent variable from the feature data, perform a primary determination as to whether each of the plurality of battery cells is defective, based on a feature value corresponding to the latent variable, and perform a secondary determination as to whether each battery cell is defective, based on a result of the primary determination and a distribution of the feature value.
Absstract of: EP4664656A1
The present disclosure relates to a separator substrate, a separator, an electrode assembly and an electrochemical device, and the separator substrate according to an embodiment of the present disclosure has a predetermined range of surface roughness Sa. Accordingly, the separator using the same maintains high adhesion strength, and has improved resistance characteristics by reducing an amount of slurry impregnation when forming a porous coating layer.
Absstract of: EP4664645A1
A battery cell (200), a battery (400), and an electrical apparatus (500). The battery cell (200) comprises an electrode assembly (300), a positive electrode plate and a negative electrode plate forming a flat area (301); a housing (60) being used for accommodating the electrode assembly (300), and the housing (60) comprising a first wall portion (11) and two second wall portions (12), the two second wall portions (12) being respectively located on either side of the flat area (301); a pressure relief portion (40), the pressure relief portion (40) being arranged on the first wall portion (11), the pressure relief portion (40) comprising a weak portion (491) and a main body portion (492), the main body portion (492) being located between the weak portion (491) and the first wall portion (11); the maximum thickness of the first wall portion (11) is Dl, the minimum thickness of the main body portion (492) is D2, the maximum thickness of the weak portion (491) is D3, and D3 < D2 < D1.
Absstract of: EP4664719A2
A charging system includes: an information input unit that acquires device-to-be-charged information that is information on devices-to-be-charged connected to charging ports; a unit-allocating unit that allocates a power conversion unit to each charging port corresponding to each device-to-be-charged such that the power conversion unit is allocated in high priority to the device-to-be-charged with a high priority level based on the devices-to-be-charged information; and a switching control unit that controls a switch unit, based on a result of the allocation by the unit-allocating unit.
Absstract of: EP4664343A1
Provided are a method and apparatus for calibrating contact parameters of electrode materials, and a computer storage medium. The method includes the following operations. A discrete element simulation test is performed on an electrode material based on a calibration model and calibration ranges of contact parameters of the electrode material when an axial force-displacement curve of a target pellet of the electrode material meets an adaption condition of the contact model; then a simulated axial pressure-axial strain relationship of the electrode material is acquired based on a target discrete element simulation parameter of the electrode material; whether the contact parameters are calibrated successfully is judged based on this relationship; and when the contact parameters are calibrated successfully, calibration results of the contact parameters are determined.
Absstract of: EP4664655A1
A first spacer (610) is disposed between a first sealing plate and an electrode assembly. The first spacer (610) includes a first base portion (630), a first outer peripheral wall (640), and a first inner wall (650). The first base portion (630) is provided with a plurality of through holes (632). The first outer peripheral wall (640) extends from an outer peripheral edge of a surface of the first base portion (630) on the first sealing plate (120) side toward the first sealing plate (120), and has a first portion (643) and a second portion (644) facing each other. The first inner wall (650) is provided to connect the first portion (643) and the second portion (644) of the first outer peripheral wall (640).
Absstract of: EP4664534A1
A battery manufacturing apparatus includes a negative electrode notching device configured to assign a first electrode ID to individual notched electrodes; a first cutting device for separating individual negative electrodes assigned the first electrode ID; a positive electrode notching device configured to assign a second electrode ID to individual notched electrodes; a second cutting device for separating individual positive electrodes assigned the second electrode ID; a stacking device configured to stack the individual positive electrodes and the individual negative electrodes with a separator therebetween; and a roll map creating device.
Absstract of: EP4664134A1
A connector inspection device according to an embodiment of the present disclosure, which is an inspection device connected to a connector of a battery module and inspecting the performance of the connector, may include a first body portion; a second body portion having one surface connected to one surface of the first body portion; a third body portion that has one surface connected to the other surface of the second body portion and includes a detection member connected to the connector and receiving an electrical signal from the connector; and a fourth body portion having one surface facing the other surface of the third body portion, having the detection member located therein, and being movable toward the third body portion, wherein the second body portion, the third body portion and the fourth body portion may be movable along one surface of the first body portion.
Absstract of: EP4664099A1
A testing apparatus (400) and a battery production device, which belong to the technical field of batteries. The testing apparatus (400) comprises an X-ray source (410), a linear array detector (420) and a carrying platform (430). The linear array detector (420) is opposite an emission port of the X-ray source (410), the carrying platform (430) can move in a first direction Y, a movement trajectory of the carrying platform (430) passes between the X-ray source (410) and the linear array detector (420), and the carrying platform (430) is configured to carry a battery (500) to be tested. The linear array detector (420) comprises a plurality of columns of sensing regions (421), which are arranged in the first direction Y. The testing apparatus (400) provided can test the battery (500) and improve the testing efficiency.
Absstract of: EP4664619A2
The present application provides a battery and an electronic product. The battery includes a housing, a cover assembly and a cell body, where the cover assembly is disposed on the housing; the cover assembly includes a conductive part and a top cover, and the top cover is in insulated connection with the conductive part; the conductive part includes a flattening portion and a boss portion, and the boss portion is connected to the flattening portion; a center of the top cover is provided with a through hole, and the boss portion extends into the through hole; and the cell body is accommodated in the housing, the cell body is connected with a first tab, the first tab is connected with the conductive part. The present application provides a battery and an electronic product for at least improving the flatness and reliability of welding a tab on a conductive part.
Absstract of: EP4663603A1
A porous carbon material, in an XRD pattern of the porous carbon material, a (002) crystal plane diffraction peak is exhibited at a diffraction angle 2θ of 26.1° to 26.9°, and a full-width-at-half-maximum of the (002) crystal plane diffraction peak is FWHM°, and 1.80 ≤ FWHM ≤ 11.00. By increasing the graphitization degree of the porous carbon material and forming a crystal structure with well-ordered carbon atoms, endowing the porous carbon material with relatively high conductivity and structural stability, and can favorably reduce the internal resistance of the silicon-carbon material after a silicon material is deposited.
Absstract of: EP4664125A1
A relay failure diagnosing method is a relay failure diagnosing method for an electricity storage device system (1) that includes multiple electricity storage device packs (10, 20) each comprising a positive and negative relay (12, 13, 22, 23) and a precharge relay (14b, 24b). The relay failure diagnosing method is executed by a controller (50). The relay failure diagnosing method includes diagnosis processing (S1) and change processing (S2). In the diagnosis processing, a failure of a relay is diagnosed for one or some of the multiple electricity storage device packs at startup of the electricity storage device system. In the change processing, an electricity storage device pack that is to be a target of failure diagnosis is changed.
Absstract of: EP4664094A1
A device for testing the dryness of an electrode according to the present disclosure comprises: an electrode substrate in which an electrode slurry is applied onto a collector, a standard sample, a light emitting unit that includes a light source and a bifurcated optical fiber connected to the light source, and selectively irradiates light to any one of the electrode substrate and the standard sample through one optical fiber of the bifurcated optical fiber, a light receiving unit that includes a spectrometer that selectively receives light reflected from any one of the electrode substrate and the standard sample and analyzes the reflected light, and a control unit that corrects at least one of the light source and the spectrometer based on the analysis results of the spectrometer.
Absstract of: EP4664670A1
Disclosed are a liquid injection system (100) and a liquid injection method. The liquid injection system (100) includes a rotary device (1), a liquid injection device, a liquid preparation mechanism (3), a loading and unloading station (4), a liquid replenishment buffer station (5), a transfer mechanism, a first weighing device (61), a second weighing device (62) and control equipment. The rotary device (1) is provided with a plurality of battery (200) placement positions arranged in a circumferential direction and able to achieve rotational displacement. The liquid injection device is disposed on each battery (200) placement position, and each liquid injection device is configured to inject a liquid into a battery (200) on the corresponding battery (200) placement position. The liquid preparation mechanism (3) is configured to prepare a liquid for the liquid injection device passing through a liquid preparation area of the liquid preparation mechanism (3). The loading and unloading station (4) is configured to place batteries (200) to be subjected to liquid injection and batteries (200) after liquid injection. The liquid replenishment buffer station (5) is configured to buffer batteries (200) to be subjected to liquid replenishment. The transfer mechanism is configured to move the batteries (200). The first weighing device (61) is configured to weigh the batteries (200) after liquid injection. The second weighing device (62) is configured to weigh the batteries (200) to be s
Absstract of: EP4664661A1
In the present secondary battery (1), a current collector (431) is a first stack in which a plurality of metal plates (4300) are stacked, the current collector (431) includes a first region (431A) and a second region (431B), a positive electrode tab group (250, 280) is joined to the first region (431A), a positive electrode current collection portion (420) is joined to the second region (431B), and the current collector (431) is bent between the first region (431A) and the second region (431B). According to the present secondary battery (1), it is possible to suppress occurrence of damage to the tab group.
Absstract of: EP4664533A1
Example embodiments provide a secondary battery manufacturing system. The secondary battery manufacturing system includes a server configured to store a roll map including defect data indicating a defect of an electrode roll and datum point data indicating a datum point on the electrode roll, a controller configured to load the defect data and the datum point data from the server, and a datum point sensor configured to generate a datum point sensing signal by sensing the datum point on an electrode sheet unwound from the electrode roll, in which the controller is configured to generate datum point sensing data based on the datum point sensing signal and compare the datum point data with the datum point sensing data.
Absstract of: EP4664632A1
A battery pack includes a battery cell assembly including one or more battery cells, a case in which at least a portion of the battery cell assembly is accommodated, the case including a first groove and a second groove, a cover coupled to the case, and a sealing member between the case and the cover, a portion of the sealing member being located in the first groove and the second groove.
Absstract of: EP4664613A1
A secondary battery includes an electrode assembly including a plurality of unit cells stacked in a first direction, and having electrode leads at opposing ends in a second direction perpendicular to the first direction; a multifunctional terminal block (MTB) included at the opposing ends of the electrode assembly; and a laminate sheet that wraps around sides of the electrode assembly, wherein the MTB includes: an electrode terminal part electrically coupled with the electrode leads of the electrode assembly; and a rupture disk configured to rupture to discharge gas.
Absstract of: EP4664621A2
A battery module includes a plurality of cells and a first fireproof layer. The cells are arranged in sequence. The first fireproof layer is arranged on the cells. The first fireproof layer is attached to top surfaces of the cells. A battery pack includes at least two battery modules stacked vertically. The fireproof performance of the battery module and the battery pack is improved, and the reliability and safety of the battery module and the battery pack are improved.
Absstract of: EP4664932A2
A system includes a hearing device comprising a rechargeable power source, power management circuitry, and a first charging interface comprising a first cathode contact and a first anode contact spaced apart from the first cathode contact. A charging module comprises a second charging interface configured to detachably couple with the first charging interface of the hearing device. The second charging interface comprises a second anode contact having a contact surface and a displaceable second cathode contact. An arrangement is configured to displace at least a portion of the second cathode contact above the contact surface to facilitate electrical contact between the first and second cathode contacts prior to electrical contact between the first and second anode contacts. Charging circuitry of the charging module is coupled to the second charging interface and configured to charge the rechargeable power source of the hearing device.
Absstract of: EP4664130A2
A battery management apparatus according to the present disclosure includes a voltage measurement circuit to measure a cell voltage of each of a plurality of battery cells; and a control unit to determine the cell voltage of each of the plurality of battery cells and a reference voltage of the plurality of battery cells at a preset time interval during a rest period. The control unit determines a first accumulated change of the cell voltage of each battery cell during the rest period. The control unit determines a second accumulated change of the reference voltage during the rest period. The control unit determines whether each battery cell is defective by comparing the first accumulated change of each battery cell with the second accumulated change.
Absstract of: EP4664593A1
Disclosed in embodiments of the present application are an electrolyte, a lithium-ion battery, and an electric device. The electrolyte comprises a metal ion including at least one of K+, Rb+, and Cs+; and the molar concentration CM of the metal ion in the electrolyte satisfies: 0.03M ≤ CM. When applied in lithium-ion batteries, the electrolyte can effectively reduce the risk of lithium plating on the negative electrode and improve the safety performance of the lithium-ion batteries.
Absstract of: EP4664553A1
The present invention relates to a negative electrode active material, a negative electrode slurry, a negative electrode comprising same, and a secondary battery comprising the negative electrode, the negative electrode active material comprising a silicon-carbon composite, a carbon layer provided on at least a portion of the silicon-carbon composite, and a coating layer of a catechol derivative or a gallol derivative provided on at least a portion of at least one of the silicon-carbon composite and the carbon layer.
Absstract of: EP4664662A1
In the present method of manufacturing a secondary battery (1), a current collector (53A) is a first stack in which a plurality of metal plates (4300) are stacked, the current collector (53A) includes a first region (532A) and a second region (532B), a positive electrode tab group (250, 280) is joined to the first region (532A), a positive electrode current collection portion (420) is joined to the second region (532B), the method including: a preparation step of preparing the current collector (53A) having a first joining portion (532T) in which the metal plates are partially joined together; a first tab group connection step of joining the positive electrode tab group (250, 280) to the current collector (53A); and an other conductive member connection step of joining the positive electrode current collection portion (420) to the current collector (53A). According to the present method of manufacturing the secondary battery (1), occurrence of damage to the tab group can be suppressed.
Absstract of: EP4663459A1
Die Erfindung betrifft ein Unterbodensystem (3) für ein Fahrzeug (1) aufweisend eine Batterie (2) zur Bereitstellung von Antriebsenergie für das Fahrzeug (1), eine Schutzeinheit (4) zum Schutz der Batterie (2), eine Lichtleitereinheit (10) zum Erkennen einer Störung (210) der Schutzeinheit (4) mit zumindest zwei Lichtwellenleitern (11), durch welche jeweils ein Lichtsignal (200) leitbar ist, und eine Kontrolleinheit (20) mit einer Messeinheit (21) zum Ausführen einer optischen Messung (102) zum Erfassen jeweils zumindest eines Lichtparameters (201) der Lichtsignale (200) und einer Auswerteeinheit (22) zur Erkennung der Störung (210) anhand einer Auswertung der optischen Messung (102). Ferner betrifft die Erfindung ein Verfahren (100), sowie ein Fahrzeug (1).
Absstract of: EP4664628A1
In a power storage device (100), a smoke exhaust valve (1) is disposed in a smoke exhaust space (S20) through which gas discharged from a gas exhaust valve (SV) of a power storage cell (10) flows. A housing (20) includes a bottom portion (21g), a side wall portion (21c) extending upward from an outer peripheral edge of the bottom portion (21g), and a protruding portion (21f) protruding from the side wall portion (21c). The smoke exhaust valve (1) is provided in the protruding portion (21f) and is disposed above a lower surface (11) of the power storage cell (10).
Absstract of: EP4664649A1
Disclosed are a module cover, a battery pack, and vehicle, the module cover having a panel shape having an area that covers all a plurality of battery modules adjacent to one another with a crossbeam interposed therebetween, in which a fixing portion is formed on a portion corresponding to the crossbeam, and the module cover is coupled to the crossbeam by means of the fixing portion.
Absstract of: EP4664648A1
Disclosed are a battery system and a vehicle including the same, the battery system including a battery module having one surface on which venting parts are formed, a pack casing in which the battery module is installed, and an elastic part provided on one surface of the battery module and disposed at a point that does not overlap the venting part, in which a part of the elastic part protrudes toward the pack casing and is supported, such that the elastic part presses one surface of the battery module based on the pack casing.
Absstract of: EP4664647A1
Disclosed are a battery casing, a battery pack, and a vehicle including the same, the battery casing including a casing body having an internal space in which a battery is embedded, a gas discharge hole formed in the casing body and provided to discharge a gas in the casing body, which is generated from the battery, to the outside of the casing body, and a gas discharge amplifier installed in the gas discharge hole and configured to amplify a flow rate of the gas discharged through the gas discharge hole.
Absstract of: EP4664583A1
A battery cell, a battery and an electrical apparatus, relating to the technical field of batteries. The battery cell comprises a casing, having a first opening; a first end cap assembly, used for covering the first opening, the first end cap assembly comprising protruding structures and a first electrode lead-out component; an electrode assembly, accommodated in the casing, the electrode assembly comprising a main body part and tabs extending from the main body part; and an isolation component, at least partially provided between the first electrode lead-out component and the main body part, wherein the isolation component comprises opening structures, reinforcement structures and isolation plates, the opening structures are protrudingly arranged on the surfaces of the isolation plates facing the first end cap assembly and are snap-fitted with the protruding structures, and the reinforcement structures are connected to the outer side walls of the opening structures, thus improving the reliability of the battery cell.
Absstract of: EP4664646A1
The present technology provides a separation structure including a plurality of cell accommodation spaces separated from each other in a first direction and a plurality of venting channels separated from each other in the first direction, and a plurality of battery cells accommodated in the plurality of cell accommodation spaces of the separation structure, in which each of the plurality of venting channels is provided in a corresponding cell accommodation space among the plurality of cell accommodation spaces, and each of the plurality of venting channels extends in a second direction perpendicular to the first direction to guide a gas in the second direction.
Absstract of: EP4664617A1
A battery (100) being as one aspect of a herein disclosed electricity storage device includes a case main body (12) which is formed in a rectangular cylindrical shape and whose both sides in a length direction are opened, an electrode assembly (20) that is accommodated by the case main body (12), a first lid body (14a) that is installed on an opening at one end side in the length direction of the case main body (12), and a second lid body (14b) that is installed on an opening at the other end side in the length direction of the case main body (12). The case main body (12) includes a pair of wide width surfaces (12b) being opposed to each other, and a pair of narrow width surfaces (12a) that are opposed to each other and that are configured to continue to the pair of wide width surfaces (12b). A recessed part (12a1) configured to elongate along the length direction of the case main body (12) is present at an inner side of at least one narrow width surface (12a) of the pair of narrow width surfaces (12a).
Absstract of: EP4664616A1
A power storage device (100) comprising: a rectangular case body (12) having openings (12h1, 12h2) at both ends in a length direction (Y) of the case body (12), an electrode body (20) housed in the case body (12), a first lid (14a) attached to the opening (12h1) at one end of the case body (12) in the length direction (Y), and a second lid (14b) attached to the opening (12h2) at another end of the case body (12) in the length direction (Y), wherein the case body (12) includes a pair of opposed wide width surfaces (12b), and a pair of opposed narrow width surfaces (12a) continuous with the pair of wide width surfaces (12b), and wherein a plurality of projections (60) along the length direction (Y) of the case body (12) are located on an inner side of at least a surface of the narrow width surfaces (12a) and the wide width surfaces (12b) of the case body (12).
Absstract of: EP4664615A1
In a secondary battery, a first electrode assembly (201) and a second electrode assembly (202) are overlapped with each other. A first electrode tab (250) and a third electrode tab (280) each connected to a first electrode (240) and respectively included in the first electrode assembly (201) and the second electrode assembly (202) are joined to a first current collector (431). The first current collector (431) is constituted of a first stack in which a plurality of metal plates (4300) are stacked. A second electrode (210) of each of the first electrode assembly (201) and the second electrode assembly (202) has a polarity different from that of the first electrode (240). A second electrode tab (220) and a fourth electrode tab (270) each connected to the second electrode (210) are joined to a second current collector (410).
Absstract of: EP4664543A2
A positive electrode active material comprises a first active material and a second active material having an average particle size (D50) smaller than an average particle size (D50) of the first active material. The first active material is a lithium-(transition metal) composite oxide containing Ni at 75 mol% or more and Ti at 0.5 to 2.8 mol% relative to a total number of moles of metallic element except Li. The second active material is a lithium-(transition metal) composite oxide containing Ni at 75 mol% or more relative to a total number of moles of metallic element except Li. A content of Ti in the second active material is 0.1 mol% or less relative to the total number of moles of metallic element except Li. Ni disorder of the first active material is from 2.1 to 2.6%, and Ni disorder of the second active material is 2.0% or less.
Absstract of: EP4664101A1
A detection apparatus for a tab (501) of a battery cell (500) and a production device for the battery cell (500) are provided, belonging to the field of battery technology. The detection apparatus includes an X-ray source (100), a flat panel detector (200), a carrying platform (300), and a controller (400). The flat panel detector (200) is opposite an emission port of the X-ray source (100), the carrying platform (300) is located between the X-ray source (100) and the flat panel detector (200), and the controller (400) is electrically connected and/or communicatively connected to the flat panel detector (200). The controller (400) is configured to acquire a detection image of the tab (501) of the battery cell (500). The detection image is a detection image of the tab (501) acquired by the flat panel detector (200) based on received rays, where the rays are emitted by the X-ray source (100), pass through the tab (501) of the battery cell (500) placed on the carrying platform (300), and are then projected onto the flat panel detector (200). The detection apparatus determines defect information of the tab (501) based on the detection image. The detection apparatus can achieve comprehensive detection of the tab (501).
Absstract of: EP4664537A1
Provided are a negative electrode plate, a secondary battery, and an electrical apparatus. The negative electrode plate comprises a negative electrode current collector and a negative electrode film layer located on at least one side of the negative electrode current collector, and the negative electrode film layer comprises a binder, wherein the negative electrode film layer comprises a first region and a second region, and the mass ratio of the binder in the first region to the binder in the second region is 0.1-1.4. The first region is a region that extends from a surface on a side of the negative electrode film layer away from the negative electrode current collector towards the interior of the negative electrode film layer by a distance within h/2, the second region is a region that extends from a surface on a side of the negative electrode film layer close to the negative electrode current collector towards the first region by a distance within h/2, and h represents a thickness of the negative electrode film layer.
Absstract of: EP4664573A1
The present invention relates to a protective tape attachment device for electrode tab protection of a secondary battery and a battery cell manufacturing method using the same, and more specifically, relates to a protective tape attachment device capable of attaching both ends of a protective tape, and a battery cell manufacturing method using the same.According to one example of the present invention, it may provide a protective tape attachment device capable of bonding both ends of each of an upper protective tape and a lower protective tape to each other up and down, comprising an upper main attachment device and a lower main attachment device attaching the upper protective tape and the lower protective tape to an electrode tab respectively, and an upper end attachment device and a lower end attachment device moving independently of the upper main attachment device and the lower main attachment device on both sides of the upper main attachment device and the lower main attachment device respectively.
Absstract of: EP4664640A1
The present disclosure provides a battery module and a battery pack including the same. The battery module according to an embodiment of the present disclosure comprises: a battery cell stack in which a plurality of battery cells including electrode leads are stacked; a fixing frame including both side surface parts and a lower surface part so as to cover both side surfaces and a lower surface of the battery cell stack; a module frame in which the battery cell stack and the fixing frame are housed; and an inlet and an outlet for circulating a coolant into the interior of the module frame, wherein the battery cell stack includes a first battery cell stack and a second battery cell stack arranged along a longitudinal direction in which the electrode leads protrude from the battery cells, wherein the lower surface part of the fixing frame includes a bead surface, with the bead surface being provided with an adhesive member that abuts against the lower ends of the first battery cell stack and the second battery cell stack, and wherein the first battery cell stack and the second battery cell stack are fixed to the fixing frame by the adhesive member.
Absstract of: EP4664554A1
The present invention relates to a cathode active material, a method of recycling a cathode active material, and a secondary battery. According to the present invention, by desorbing and recovering a cathode active material from a waste cathode, applying a coating agent thereto, and controlling the calcination conditions of the coating agent-coated cathode active material, a structure similar to the crystal structure of the fresh cathode active material may be obtained, and the area where an olivine structure compound is mixed within a carbon coating layer on the surface of the cathode active material may be reduced. Accordingly, excellent battery characteristics may be provided.
Absstract of: EP4664585A1
The present disclosure relates to an electrode assembly having a stack form of an electrode, a separator and a counter electrode, in which each of the electrode and the counter electrode includes a tab extending from a current collector; the electrode is larger than the counter electrode at four sides including a side from which the tap extends thereof, to have an exposed portion; and an insulation layer is formed on a tab portion of the electrode and on an edge portion of the electrode.
Absstract of: EP4664611A1
A battery module includes battery cells each of which includes a pair of broad width surfaces and that are arranged such that the broad width surfaces are opposed to each other and a heat insulator arranged between an adjacent pair of battery cells. The heat insulator includes a heat insulating sheet and a buffer sheet bonded to the heat insulating sheet. The heat insulating sheet is formed of a material that can be more easily compressively deformed than the heat insulating sheet. The heat insulating sheet includes a recessed portion in a surface to which the buffer sheet is bonded.
Absstract of: EP4664577A2
A tab welding structure and a battery are provided, relating to the field of battery technology. The tab welding structure includes a wound body (100) with an electrode plate, and a full tab (110). The full tab (110) is electrically connected to the electrode plate and located at one end of the wound body (100). A current collector (300) is welded to the full tab (110) to form welding point groups (200). The welding point groups (200) are arranged in a radial pattern around a center of the wound body (100). Each welding point group (200) includes welding points (211) arranged in a wave pattern along a radial direction of the wound body. This configuration enhances the uniformity of current conduction in the wound body (100) and reduces the amount of current loss.
Absstract of: EP4664630A1
A power storage device (10) includes at least one power storage cell (100), a top wall (220) provided over the power storage cell, a facing wall (212, 240) facing the power storage cell in a width direction, a support portion (300) supporting the power storage cell, and a bottom plate (230) disposed under the power storage cell. The bottom plate (230) includes a connecting surface (231a) formed so as to be flat. At least one of the facing wall and the support portion includes a bottom surface (212a, 310a) formed in a position closest to the connecting surface (231a) of the bottom plate (230) and formed so as to be flat. The connecting surface (231a) of the bottom plate (230) is connected to the bottom surface.
Absstract of: KR20250174770A
본 개시에 따르면 내화용기에 공급되는 전극재료 분말이 채워지는 호퍼 및 호퍼 내부의 전극재료 분말을 교반하는 임펠러 및 교반된 전극재료 분말을 정량 공급하는 스크류가 설치되는 샤프트 어셈블리를 포함하고, 샤프트 어셈블리는 제1 중공홀을 갖는 하우징과, 임펠러가 마련되며 제1 중공홀에 회전 가능하게 설치되고 제2 중공홀을 갖는 교반축과, 스크류가 마련되며, 제2 중공홀에 회전 가능하게 설치되는 스크류축과, 하우징과 교반축 사이에 개재되는 제1 베어링부와, 교반축과 스크류축 사이에 개재되는 제2 베어링부 및 제1 중공홀 및 제2 중공홀 중 적어도 하나에 압축공기를 공급하는 압축공기 공급부를 포함한다.
Absstract of: WO2025251363A1
A sodium ion battery positive electrode material and a preparation method therefor, a positive electrode sheet, a secondary battery, and an electrical device, relating to the field of sodium ion battery positive electrode materials. The sodium ion battery positive electrode material comprises a core and a coating layer that coats the outer surface of the core, wherein the material of the core is an O3-type layered oxide, and the material of the coating layer is a P2-type layered oxide. In the sodium ion battery positive electrode material, the P2-type layered oxide forms a protective layer on the surface of the O3-type oxide, thereby enhancing the structural integrity and stability of the O3-type layered oxide; in addition, the P2-type coating layer can provide a rapid sodium ion diffusion channel, such that the sodium ion battery positive electrode material having a core-shell structure has excellent cycle performance.
Absstract of: JP2025074084A
To provide a battery module having improved space utilization and cooling efficiency and a battery pack including the same.SOLUTION: A battery module according to an embodiment of the present invention includes: an upper battery cell stack and a lower battery cell stack in which a plurality of battery cells are stacked; a cooling flow path located between the upper battery cell stack and the lower battery cell stack; and a module frame in which the upper battery cell stack and the lower battery cell stack are housed. An inlet port for supplying a refrigerant to the cooling flow path and an outlet port for discharging the refrigerant from the cooling flow path are located opposite to each other, so that the refrigerant flows in one direction in the cooling flow path. A longitudinal direction of the battery cell is aligned in parallel with the one direction in which the refrigerant flows.SELECTED DRAWING: Figure 1
Absstract of: WO2025193029A1
A battery pack according to one embodiment of the present invention comprises: at least one battery assembly including a plurality of battery cells; and a pack frame for accommodating the at least one battery assembly. The pack frame includes a bottom frame on which the battery assembly is placed and which has a venting space. The battery assembly includes: battery cells stacked in one direction; and cell frames, which are connected along the edges of the battery cells and cover the edges of the battery cells. Among the cell frames, a cell vent part is formed at a portion facing the bottom frame.
Absstract of: WO2024218068A1
The present disclosure generally relates to a method for manufacturing a sodium or potassium ion battery cell comprising a Prussian Blue analogue (PBA) as an active cathode material. The present disclosure also relates to a sodium or potassium ion battery produced by the method.
Absstract of: KR20250174749A
본 발명의 일 실시예에 따른 이차 전지용 실링 장치는 이차 전지의 가스 포켓의 양측을 가압하도록 마련된 포켓 가압툴을 포함하는 포켓 가압부, 가열 상태로 상기 가스 포켓의 양측을 가압하여 상기 가스 포켓을 열융착시키도록 마련된 실링툴을 포함하는 실링부, 상기 포켓 가압부 및 상기 실링부가 장착되고, 상기 가스 포켓의 단부에서 이차 전지의 컵을 향하는 방향으로 이동가능하게 마련된 가압 위치 조정부, 및 전해액 제거 모드 및 실링 모드가 미리 저장되고, 상기 전해액 제거 모드시 상기 포켓 가압툴이 상기 가스 포켓의 양측과 접촉된 상태로 상기 가스 포켓의 단부에서 상기 컵을 향해 이동하면서 상기 가스 포켓 내의 전해액을 상기 컵으로 밀어내도록 상기 포켓 가압부 및 상기 가압 위치 조정부를 작동시키는 제어부를 포함할 수 있다.
Absstract of: CH721859A2
La présente invention concerne un électrolyte à l'état solide SSE (1) comprenant une membrane dense (2) comprenant du LLZO d'une épaisseur égale ou inférieure à 100 µm et une couche de revêtement (3) comprenant du Sb d'une épaisseur comprise entre 1 et 20 nm disposée sur une surface de la membrane dense, la membrane dense ayant une densité égale ou supérieure à 90 % de la densité théorique de la membrane, dans laquelle la surface de la membrane dense sur laquelle la couche de revêtement est fournie est sensiblement exempte de Li 2 CO 3 , dans laquelle le SSE comprend un premier alliage Li-Sb (5) à l'interface de la couche de revêtement contenant du Sb et de la membrane dense contenant du LLZO, dans laquelle les épaisseurs sont calculées à partir d'images MEB du SSE. L'invention concerne en outre une batterie à l'état solide SSB comprenant du SSE et des procédés de production du SSE et de la SSB.
Absstract of: EP4661123A1
The present invention relates to a battery cell pressing jig for manufacturing a battery cell, the battery cell pressing jig comprising:a first pressure pad configured to apply a uniform mechanical pressure to a first main outer surface of a pouch-type battery cell in a direction essentially perpendicular to the first main outer surface;a second pressure pad configured to apply a uniform mechanical pressure to a second main outer surface of the pouch-type battery cell in a direction essentially perpendicular to the second main outer surface, the first and second main outer surfaces of the pouch-type battery cell being opposite each other;wherein the first and the second pressure pads are made of an elastic material. The invention further relates to a battery cell manufacturing system.
Absstract of: US2025379216A1
A negative electrode active material, a negative electrode including the same, and a lithium secondary battery including the negative electrode are provided. The negative electrode active material comprises a silicon-based active material; and graphite including natural graphite and artificial graphite, where an absolute difference between an average particle diameter of the natural graphite and that of the artificial graphite is 10% or less based on the average particle diameter of artificial graphite, and an absolute difference between an average particle diameter of the silicon-based active material and the average particle diameter of the artificial graphite is 40% or less based on the average particle diameter of artificial graphite.
Absstract of: WO2025136075A1
The present application relates to an anode comprising an anode active material layer that includes a silicon-based active material, wherein, when the cohesion strength is measured at respective positions of 25%, 50% and 75% of the total thickness from a first surface of the anode active material layer on the basis of the total thickness T, which is the distance between the first surface and a second surface that face each other, the average of the measured cohesion strengths is 1 Mpa to 20 Mpa, the deviation of the measured cohesion strengths is 140% or less, and the vertical resistance is 0.005 Ω to 0.3 Ω.
Absstract of: WO2025239485A1
Disclosed are a battery pack and a vehicle comprising same. The battery pack according to an embodiment of the present invention includes: a plurality of battery cells; a busbar assembly which electrically connects the plurality of battery cells; a frame which supports the plurality of battery cells; and a busbar arrangement member which is coupled to the frame and in which at least a part of the busbar assembly is arranged.
Absstract of: WO2025251433A1
A manganese iron phosphate precursor, a preparation method therefor, a positive electrode material, an electrode sheet, and a battery. The formula of the manganese iron phosphate precursor is (NH4)(3-2x-2y)FexMnyPO4•H2O, wherein 0 < x < 1, and 0 < y < 1. The manganese iron phosphate precursor satisfies the following conditions: the average particle size is 2.0μm to 2.5μm, the D50 particle size is 1.6μm to 2.0μm, and the span is 0.4-0.7.
Absstract of: WO2025086598A1
An electrode assembly, a manufacturing method therefor, a battery cell, a battery and an electrical device. The electrode assembly comprises an active substance-coated part; and a tab part, the tab part comprising a plurality of stacked tab pieces. The plurality of stacked tab pieces have overlapping regions and misaligned regions, the overlapping regions being welded to form a first weld part, and the misaligned regions being welded at least at a position away from the active substance-coated part to form a second weld part. In the technical solution of the embodiments of the present application, on one hand, the utilization rate of the tab parts is improved, helping to increase the capacity of a battery cell and reduce the temperature rise caused by a current flow, and on the other hand, the second weld part can better support a welding nozzle than the plurality of fluffy tab pieces, so as to reduce problems of welding defects, thus reducing the requirement for cutting the welded tab part, saving costs, improving the fast charge performance and assembly efficiency of the battery cell, and also making the tab part less prone to be scratched by the hole wall of a through-hole structure.
Absstract of: AU2024258726A1
The invention provides a rechargeable lithium metal cell, comprising: an anode comprising lithium metal; a cathode comprising a high-voltage cathode material; and a plurality of lithium-conductive layers interposed between the anode and the cathode, the lithium-conductive layers comprising a solid polymeric anolyte layer adjacent the anode and one or more further electrolyte layers which space apart the polymeric anolyte layer from the cathode, wherein the solid polymeric anolyte layer comprises (i) a block copolymer comprising at least one hydrophobic non-ionic block and at least one ionic block, and (ii) lithium salt, and wherein the solid polymeric anolyte layer has at least two glass transition temperature (Tg) values.
Absstract of: FR3163031A1
La présente invention concerne un procédé et un dispositif de contrôle d’un système de préchauffage d’une batterie de traction d’un véhicule électrique (10). A cet effet, des données de navigation représentatives d’un trajet déterminé pour le véhicule électrique (10) par une application mobile de navigation exécutée par un dispositif de communication mobile (101) relié en communication au véhicule électrique (10) sont reçues, les données de navigation comprenant des informations représentatives d’un ensemble d’arrêts à une station de recharge. Des paramètres de contrôle du système de préchauffage de la batterie de traction du véhicule électrique (10) sont déterminés en fonction des informations. Les paramètres de contrôle sont transmis à destination du système de préchauffage. Figure pour l’abrégé : Figure 1
Absstract of: KR20250174390A
본 발명은 폐 리튬 이온전지 선별 회수시스템의 진동선별기를 개시한다. 본 발명에 따른 폐 리튬 이온전지 선별 회수시스템의 진동선별기는, 지면에 설치되는 베이스 본체; 상기 베이스 본체의 상부에 간격을 두고 내부가 비어 있는 통체 형상으로 구비되는 것으로, 상부에 분쇄물이 투입되는 투입구가 형성되고, 투입된 분쇄물을 선별분리하여 블랙파우더가 배출되는 제1배출구 및 혼합동이 배출되는 제2배출구가 형성된 진동챔버; 상기 베이스본체와 진동챔버 사이를 탄력적으로 연결 지지하는 변위유도 탄성체; 상기 베이스 본체의 내부에 설치되어 그 상단부가 상기 진동챔버에 연결되어 진동을 전달하는 진동발생부; 상기 진동챔버의 내부공간을 상,하로 복수 구획하는 것으로 투입된 분쇄물을 크기별로 통과시키는 메쉬를 형성한 스크린을 구비하되, 상기 스크린은 점진적으로 작은 크기로 선별하도록 복수 구비되는 선별체로 구성네ㅣ된다. 이와 같이 구성되는 본 발명은 간소한 구조와 공정을 통해 이물질과 불순물을 모두 제거한 분쇄물에서 블랙파우더와 혼합동을 고순도로 선별 분리할 수 있음에 따라 경제성과 회수 효율성을 높일 수 있는 유용한 효과가 있다.
Absstract of: KR20250174241A
본 문서에 개시된 일 실시 예에 따른 모니터링 장치는, 배터리 유닛 검사 장치의 상태를 판단하기 위한 캘리브레이션 시트를 포함하는 배터리 유닛 고정 클램프에 의해 고정된 배터리 유닛의 적어도 일부 및 상기 캘리브레이션 시트가 촬영된 모니터링 이미지를 획득하는 인터페이스; 및 상기 모니터링 이미지 상의 상기 캘리브레이션 시트에 대응되는 영역에 기초하여 상기 배터리 유닛 검사 장치의 상태를 판단하는 하나 이상의 프로세서를 포함할 수 있다.
Absstract of: US2025375789A1
A coating shim for electrode slurry discharge includes a hollow region through which an electrode slurry may flow and a frame surrounding at least a part of the hollow region. The frame includes a base portion extending in one direction to form one side surface of the hollow region; side portions extending at opposite ends of the base portion in a direction different from the one direction; and guide portions extending at respective ends of the side portions to face each other and to be spaced apart from each other to form a discharge port therebetween which allows the hollow region to communicate with outside. The guide portions have inclined surfaces at respective ends thereof such that a distance between lower portions of the guide portions is greater than a distance between upper portions of the guide portions.
Absstract of: CN120569414A
The present invention relates to carboxymethyl cellulose (CMC), compositions comprising CMC, processes for their preparation and their use in, for example, batteries. The CMC is used in a wide variety of technical fields. Aspects that benefit from the thickening and gel-forming properties of CMC are, for example, the petroleum industry (e.g. In drilling fluids), the food industry, the pharmaceutical industry, the paper industry, the electrical and electronic industry, the textile industry, and the construction industry.
Absstract of: WO2024245751A1
The invention relates to a method for operating a battery system (6) comprising at least one electrochemical battery cell (10) in which at least one electrochemical process contributing to a cell internal electrical resistance of the battery cell (10) occurs during operation, wherein the electrochemical process is assigned a time constant, wherein a current pulse (38) is fed into the battery cell (10), and wherein a pulse frequency of the current pulse (38) is set on the basis of the time constant such that the electrochemical process of the battery cell (10) is resonantly excited by the current pulse (38).
Absstract of: WO2024244944A1
A battery housing, a battery and an electric device. The battery housing comprises a housing body and a cover plate, wherein the housing body is fixedly connected to the cover plate by means of a welding part; and the welding part comprises a first welding part, which connects at least both the cover plate and the outer surface of the side wall of the housing body.
Absstract of: JP2024156422A
To improve both film formability and battery characteristics when the coating weight of a positive electrode active substance layer containing olivine-type lithium manganese iron phosphate is increased.SOLUTION: A positive electrode material for a lithium-ion secondary battery includes a granulated body 10 having: a core 11 composed of olivine-type lithium manganese iron phosphate represented by the general formula LiMnxFeyPO4 (x and y are numerical values satisfying x+y=1, 0<x<1, and 0<y<1 ); and a carbon coating 12 formed on a surface of the core 11. The core 11 has a structure in which primary particles of olivine-type lithium manganese iron phosphate are aggregated. The particle size of the primary particles is 100 nm or less. A pore volume in a pore size range of 2 nm or more and 300 nm or less in the granulated body 10 is 0.2 cm3/g or less, and a carbon content of the granulated body is 1.8 mass% or more and 3.0 mass% or less.SELECTED DRAWING: Figure 1
Absstract of: KR20250174245A
본 발명은 전기화학소자용 분리막, 이를 포함하는 전기화학소자 및 이의 제조방법에 관한 것으로, 구체적으로 중공형 입자를 포함하는 코팅층을 구비함으로써 리튬 이온 전도도가 향상되고 분리막의 저항을 감소시킬 수 있는 전기화학소자용 분리막, 이를 포함하는 전기화학소자 및 이의 제조방법에 관한 것이다.
Absstract of: KR20250174193A
본 발명은 다공성 기재; 무기물 입자 및 고분자 바인더를 포함하고, 상기 다공성 기재의 적어도 일면에 형성되는 다공성 코팅층; 및 상기 다공성 코팅층 표면의 적어도 일부를 덮으며, 셀룰로오스 나노섬유를 포함하는 접착층을 포함하며, 상기 셀룰로오스 나노섬유의 결정화도는 20 내지 40%인, 전기화학소자용 분리막에 관한 것이다.
Absstract of: KR20250174332A
본 발명은 복합 고체전해질 및 그 제조방법에 관한 것으로, 보다 상세하게는 표면에서 부반응이 억제된 3층의 복합 고체전해질 및 이를 활용한 전고체전지에 관한 것이다. 본 발명의 제조방법은 함침 공정을 사용하여 부반응을 차단할 수 있고, 높은 이온전도도, 우수한 전기화학적 안정성 및 높은 리튬 이온 이동수를 가지는 복합 고체전해질을 제공할 수 있다.
Absstract of: KR20250174242A
본 발명은 폐 리튬 이온전지 선별 회수시스템의 덕트내 슬러지 흡착방지장치를 개시한다. 본 발명에 따른 폐 리튬 이온전지 선별 회수시스템의 덕트내 슬러지 흡착방지장치는, 방전된 배터리셀을 공급받아 파쇄하여 1차 처리물을 생성하는 파쇄기; 상기 파쇄기에 연결되어 1차 처리물을 공급받아 입자 크기에 따라 분리시키는 것으로, 매쉬망 구조의 진동스크린을 통과시켜 2차 처리물을 선별 낙하시키고, 무게가 가벼운 분리막은 풍압으로 부상시켜 분리 배출시키는 분리막 제거기; 상기 분리막 제거기에 연결되어 2차 처리물을 공급받아 전해액을 기화시켜 배출처리하고 전해액이 제거된 3차 처리물을 생성하는 저온소성기; 상기 저온소성기에 연결되어 3차 처리물을 공급받는 것으로 내부 온도가 350~450℃를 유지하면서 잔류 분리막과 바인더를 연소시킨 처리기체를 배기 덕트를 통해 배출시키고, 처리 기체가 제거된 4차 처리물을 생성하는 고온소성기; 상기 고온소성기에 연결되어 4차 처리물을 공급받아 1마이크론 크기의 파우더로 분쇄하여 분쇄물을 생성하는 분쇄기 및 이 분쇄기에 연결되어 비산되는 부유물질을 백필터로 포집하는 싸이클론 백필터 및 상기 분쇄물을 공급받아 진동선별을 통해 블랙매스를 분리하는 진동�
Absstract of: WO2025254435A1
In the present invention, a protective layer including a lithium metal compound is coated on an anode current collector so that the formation of lithium dendrites can be suppressed without deviating from the constituent elements and structure of a conventional battery, and thus the lifespan and cycle characteristics of a battery can be greatly improved.
Absstract of: KR20250174143A
본 발명은 리튬 이차 전지 양극용 첨가제에 관한 발명이다. 보다 상세하게는, 기능성 첨가제; 양극 활물질; 도전재; 및 바인더를 포함하되, 상기 기능성 첨가제는 이미다졸기를 포함하는 화합물을 함유하는 양극 활물질 슬러리이다.
Absstract of: US2025377414A1
A battery diagnosis device and method, and a battery pack are disclosed. A battery diagnosis device includes a configuration for diagnosing an abnormality of a battery cell in a manner of analyzing a change in behavior of a cell voltage change rate that appears when the battery cell is discharged in a state in which a state of charge (SOC) of the battery cell has been formed as a predefined reference SOC.
Absstract of: WO2025254471A1
The present invention relates to a method for treating cleaning waste liquid, comprising: a pretreatment step of removing a part of an organic solvent from cleaning waste liquid including a positive electrode active material, a binder, and an organic solvent; a first step of adding water to the cleaning waste liquid from which a part of the organic solvent has been removed to precipitate the binder; a second step of removing the precipitated binder to obtain a first treatment solution containing the positive electrode active material, the water, and the organic solvent; a third step of separating the positive electrode active material from the first treatment solution to obtain a second treatment solution containing the water and the organic solvent; and a fourth step of removing water from the second treatment solution and recovering the organic solvent.
Absstract of: TW202442302A
The present invention provides a gas adsorption sheet for a secondary battery, the gas adsorption sheet containing gas adsorption particles excellent in gas adsorption properties and capable of sufficiently exhibiting gas adsorption performance of the gas adsorption particles. A gas adsorption sheet for a secondary battery with a cover film according to an embodiment of the present invention comprises: a gas adsorption sheet for the secondary battery, including a heat-resistant base material and a gas adsorption layer disposed on at least one side of the heat-resistant base material; and a cover film disposed on the gas adsorption layer on the opposite side from the heat-resistant base material, the gas adsorption layer being composed of a binder resin and an inorganic porous material having pores, and containing gas adsorption particles capable of adsorbing gas.
Absstract of: US2025379229A1
An anode for a secondary battery includes: an anode current collector, a first anode active material layer disposed on at least one surface of the anode current collector and including a first anode active material and a first binder, and a second anode active material layer disposed on the first anode active material layer and including a second anode active material, a second binder, and a conductive additive, wherein the conductive additive includes a conductive polymer and a water-soluble polymer having a weight average molecular weight of 10,000 g/mol to 100,000 g/mol.
Absstract of: KR20250174365A
설치 공간을 축소할 수 있으며, 유지보수가 간편한 이차전지 리드탭 제조장치가 개시된다. 이는 다수의 융착 유닛을 로터리 형태로 배치하고, 다수의 금속판을 회전시켜 융착 공정을 동시에 수행할 수 있기 때문에 다수의 융착 공정 간의 이동 거리를 단축시킬 수 있으며, 설비가 차지하는 공간을 획기적으로 단축시킬 수 있다. 또한, 정전기 또는 공기의 압축 등으로 인해 서로 접착된 다수의 금속판을 분리수단을 이용하여 개별로 분리하여 이송되도록 할 수 있다. 즉, 회동에 의해 금속판 사이에 삽입되는 래치와 금속판 방향으로 에어를 분사하는 에어 분사구를 이용하여 빠르게 금속판이 서로 분리되도록 할 수 있다. 따라서, 금속판 간의 접착에 의한 공정 불량을 방지할 수 있고, 작업의 생산성을 향상시킬 수 있다.
Absstract of: WO2025254321A1
The present invention provides: a molded and sintered body of a cathode active material in which a plurality of cathode active material particles are aggregated and maintain the shape of the molded and sintered body; and a secondary battery made from same. The molded and sintered body of a cathode active material is manufactured by sintering after feeding into a sintering furnace without using a sintering vessel, and thus has high productivity. In addition, the reactivity of the molded and sintered body is high due to the high conversion energy and large amount of contact with a fluid during sintering, and thus it is possible to produce a cathode active material having excellent physical properties.
Absstract of: WO2024212691A1
A battery cell, a battery pack, and an electric device. The battery cell comprises a housing, a pole core, a first current collecting disc, and a conductive column. A first tab is arranged at one end of the pole core in a first direction. The pole core is arranged in the housing. The first current collecting disc and the conductive column are provided at one end of the first tab away from the pole core. The first current collecting disc is configured in a flat plate shape. The first current collecting disc is respectively electrically connected to the conductive column and the first tab.
Absstract of: CN119361696A
The present invention relates to an electrode comprising an electrode active material layer and a secondary battery comprising the same, in which the electrode active material layer comprises an electrode active material and a conductive agent, and in which the conductive agent comprises: graphene having an average length of 0.1 mu m to 100 mu m; and a carbon nanotube structure in which 2 to 5,000 single-walled carbon nanotube units are arranged side by side and bonded to each other, in which the carbon nanotube structure has an average length of 1 mu m to 500 mu m, and in which the carbon nanotube structures are connected to each other in the electrode to form a network structure.
Absstract of: KR20250174511A
본 발명은 극성 단량체, 이온성 단량체, 극성 고분자 및 이온성 고분자 중에 서 선택된 1종 이상을 포함하고, 상기 이온성 단량체 및 이온성 고분자가 포함하는 이온과 짝을 형성하는 짝이온을 포함하는, 리튬-황 이차전지의 황 양극용 바인더 조성물, 이를 포함하는 황 양극 및 리튬-황 이차전지에 관한 것이다. 이에 의하여 리튬 폴리설파이드의 셔틀현상을 방지하고 황 양극 표면에 리튬설파이드의 3차원 형 상을 유도함으로써 활물질 손실을 막고, 황 양극 표면이 부동화화되는 것을 방지하 여 결과적으로 고에너지 밀도의 리튬-황 이차전지를 구현할 수 있다.
Absstract of: KR20250174451A
본 발명은 실리콘 음극재로 사용되는 다공성 탄소지지체 내 금속불순물을 효율적으로 제거하는 정제방법, 이 방법으로 정제된 초고순도 다공성 탄소지지체 및 이를 이용한 실리콘 음극재(전지 음극재), 이를 음극 소재로 포함하는 리튬이온전지 및/또는 전고체 전지에 관한 것이다.
Absstract of: US2022102792A1
A battery pack includes a plurality of battery modules, each having at least one battery cell, a rack case configured to accommodate the plurality of battery modules, and a fire proof unit mounted to be spaced apart from each other by a predetermined distance along a vertical direction of the rack case and configured to support the battery modules and prevent flame and heat from propagating to adjacent battery modules when a fire occurs in at least one of the plurality of battery modules.
Absstract of: US2025379466A1
The charging and discharging operation method of a lithium-ion battery according to the present disclosure comprises measuring an overpotential for each discharge voltage while discharging the lithium-ion battery, determining a minimum discharge voltage for controlling charging and discharging based on a measurement result of the overpotential and controlling charging and discharging the lithium-ion battery according to the determined minimum discharge voltage.
Absstract of: WO2025254470A1
The present invention relates to a method for recovering a positive electrode active material. A method for recovering a positive electrode active material according to the present invention comprises: a first step in which a positive electrode including a positive electrode current collector and a positive electrode mixture layer containing a positive electrode active material and a binder is immersed in an organic solvent capable of dissolving the binder, thereby separating the positive electrode mixture layer and the positive electrode current collector; a second step for removing the positive electrode current collector to obtain a first processing solution containing the positive electrode active material, the binder, and the organic solvent; a third step for removing at least a portion of the organic solvent contained in the first processing solution; a fourth step for adding water to the first processing solution to precipitate the binder, and separating the precipitated binder to obtain a second processing solution containing the positive electrode active material, the water, and the organic solvent; a fifth step for separating the positive electrode active material from the second processing solution to obtain a third processing solution containing the water and the organic solvent; and a sixth step for removing the water from the third processing solution and recovering the organic solvent.
Absstract of: KR20250174266A
본 발명에 따른 양극활물질의 제조 방법은, 양극활물질 전구체 및 리튬염을 소성하여 예비 양극활물질을 제조하는 단계, 및 상기 예비 양극활물질에 탄소와 플루오린이 결합된 화합물을 포함하는 용액을 제공하고 퀜칭하여 상기 양극활물질을 제조하는 단계를 포함하되, 상기 용액은 상기 예비 양극활물질을 제조한 후에 제공되는 것을 포함할 수 있다.
Absstract of: KR20250174364A
설치 공간을 축소할 수 있으며, 유지보수가 간편한 이차전지 리드탭 열융착 장치가 개시된다. 이는 다수의 융착 유닛을 로터리 형태로 배치하고, 다수의 금속판을 회전시켜 융착 공정을 동시에 수행할 수 있기 때문에 다수의 융착 공정 간의 이동 거리를 단축시킬 수 있으며, 설비가 차지하는 공간을 획기적으로 단축시킬 수 있다. 또한, 각각의 융착 유닛에서 지지부재의 양측에 체결된 체결 볼트 하나만 바디에서 분리하면, 인접한 장치의 간섭 없이도 패드가 지지부재와 함께 패드의 길이 방향으로 슬라이딩 되면서 분리될 수 있기 때문에 교체가 간편하고, 패드 교체를 위한 교체 시간을 획기적으로 절감할 수 있다.
Absstract of: FR3163167A1
Un procédé permet de déterminer une information relative à une batterie rechargeable faisant partie d’un système, comportant des cellules et ayant des premières tensions aux bornes des cellules et une tension à vide déterminées et une capacité estimée en divisant une quantité d’ampère-heure fournie dans une phase de décharge ou reçue dans une phase de recharge par une variation d’état de charge pendant cette phase de décharge ou cette phase de recharge. Ce procédé comprend une étape (10-20) dans laquelle on détermine une information représentative d’une variation d’état de charge minimale pour estimer la capacité avec une précision choisie, en fonction d’au moins une première erreur estimée sur la variation d’état de charge et une seconde erreur estimée sur la quantité d’ampère-heure. Figure 3
Absstract of: FR3163211A1
Cellule (1) électrique comprenant :- un sachet (2) souple hermétique,- une pluralité d’électrodes (3, 4) positives et négatives séparées les unes des autres par un film (5) séparateur poreux de sorte à former un empilage (6) d’électrodes, ledit empilage (6) d’électrode étant enveloppé dans le sachet (2) souple, - un électrolyte agencé dans le sachet (2) souple, - un premier terminal (7) connecté aux électrodes (3) positives et un deuxième terminal connecté aux électrodes (4) négatives, lesdits premier et deuxième terminaux faisant saillie du sachet (2) souple,la cellule (1) comprenant une coque (9) extérieure rigide dans laquelle est agencé le sachet (2) souple, ladite coque (9) extérieure comprenant :- une première portion (10) métallique connectée au premier terminal (7) et,- une deuxième portion (11) métallique connectée au deuxième terminal. Figure pour l'abrégé : Figure 2
Absstract of: FR3163225A1
Dispositif de déconnexion d’une batterie électrique avec transistors et refroidissement liquide Dispositif de déconnexion d’une batterie électrique, comprenant une borne d’entrée (E) destinée à être connectée à une borne (201) de la batterie, un chemin de courant (I) s’étendant depuis la borne d’entrée, et une borne de sortie (S) du dispositif destinée à être connectée à une charge (300), le chemin de courant comprenant un premier circuit (110) comportant au moins deux transistors (111, 112) chacun muni d’une diode interne et agencés en série et selon deux sens de conduction opposés, le dispositif comprenant en outre un canal (400) dans lequel peut circuler un liquide de refroidissement, le canal étant configuré pour que la puissance dissipée par lesdits au moins deux transistors soit évacuée par le liquide de refroidissement. Figure pour l’abrégé : Fig. 1.
Absstract of: FR3163208A1
La présente invention concerne une composition de revêtement pour anode comprenant un polymère et un sel de métal alcalin dont le rapport massique est supérieur ou égal à 0,1.
Absstract of: FR3163072A1
La présente invention a trait de manière générale au domaine du stockage d’énergie électrique dans des batteries secondaires rechargeables de type Na-ion ou K-ion. Plus précisément, l’invention concerne un revêtement de cathode pour une batterie Na-ion ou K-ion tout solide. L’invention concerne aussi un procédé de préparation dudit revêtement. L’invention se rapporte également à une cathode revêtue de ce revêtement, au procédé de fabrication d’une telle cathode, ainsi qu’aux batteries secondaires Na-ion ou K-ion comprenant une telle cathode.
Absstract of: FR3163071A1
La présente invention a trait de manière générale au domaine du stockage d’énergie électrique dans des batteries secondaires rechargeables de type Na-ion ou K-ion. Plus précisément, l’invention concerne un revêtement d’anode pour une batterie Na-ion ou K-ion tout solide. L’invention concerne aussi un procédé de préparation dudit revêtement. L’invention se rapporte également à une anode revêtue de ce revêtement, au procédé de fabrication d’une telle anode, ainsi qu’aux batteries secondaires Na-ion ou K-ion comprenant une telle anode.
Absstract of: FR3163209A1
La présente invention concerne une composition de revêtement pour anode comprenant un polymère et un sel de métal alcalin dont le rapport massique est supérieur ou égal à 0,6.
Absstract of: FR3163168A1
L'invention concerne un équipement (1) de test pour tester l’isolation électrique d’au moins un objet (100, 1000), l’équipement (1) de test étant caractérisé en ce qu’il comprend : au moins un panneau (11, 12, 13, 14, 15) de contact configuré pour venir en contact avec l’objet testé, chaque panneau de contact comprenant une plaque support (111, 121, 131, 141) rigide formée à partir d’au moins un matériau électriquement conducteur, la plaque (111, 121, 131, 141) supportant au niveau d’une face de test, un revêtement formé, de préférence constitué, d’une mousse (112, 122, 132, 142) électriquement conductrice et configurée pour venir en contact avec l’objet en exerçant une pression sur ledit objet dans une position de test de l’objet ; et un dispositif de mesure (2) électrique de résistance, d’une part relié électriquement au panneau de contact ou l’un au moins des panneaux de contact (11, 12, 13, 14, 15) , et d’autre part, configuré pour être relié électriquement à l’objet à tester. (Fig. 1)
Nº publicación: KR20250174504A 12/12/2025
Applicant:
구이저우쩐화이켐인코포레이티드구이저우쩐화이켐컴퍼니리미티드구이저우쩐화이롱이켐컴퍼니리미티드
Absstract of: US2025372645A1
Embodiments of the present application relate to a high-nickel compound and a preparation method therefor. According to one embodiment of the present application, the high-nickel compound has a chemical general formula of LiaNixCoyMnzMbO2·cα·dβ, where 1≤a≤1.2, 0
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