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SHELL ASSEMBLY FOR BATTERY AND POWER DEVICE

Resumen de: US20260074323A1

Provided are a shell assembly for a battery, a battery, and a power device. The shell assembly includes: a shell, where a first mating surface and a first end surface are formed on an end portion of the shell, and an included angle between the first mating surface and the first end surface is α1; and a cover plate, where the cover plate covers the end portion of the shell and forms a first surface, a protruding portion protruding toward an interior of the shell is formed on the first surface, and a second mating surface adapted to abut against the first mating surface is formed on the protruding portion. An included angle between the second mating surface and the first surface is α2, and α1 and α2 satisfy: α190°.

CERAMIC HEATER MODULE CONTROL APPARATUS, AND CERAMIC HEATER UNIT

Resumen de: US20260074322A1

A control apparatus controls a ceramic heater module which includes a ceramic heater including a resistive heating element, and a case housing the ceramic heater and having an inlet and an outlet through which a liquid medium flows. The control apparatus obtains, as an outlet temperature, a temperature on an outlet side of the ceramic heater module, and determines whether or not a stop condition is satisfied, on the basis of a temperature difference between a start temperature (the outlet temperature at an energization start time point at which energization of the resistive heating element is started) and a detection temperature (the outlet temperature obtained at one or a plurality of specific time points after the energization start time point). The control apparatus stops the energization of the resistive heating element when it determines that the stop condition is satisfied.

BATTERY MODULE AND VEHICLE

Resumen de: US20260074320A1

The present application provides a battery module and a vehicle. The battery module includes: a battery body, a liquid cooling plate, and connecting tubes. The battery body and the liquid cooling plate are stacked, and the liquid cooling plate includes fluid inlet and outlet ports. Each connecting tube corresponds to a respective one of the fluid inlet and outlet ports, and each connecting tube includes: a connecting tube body, a connecting elbow, and a first connecting flange. In each connecting tube, a first end of the connecting tube body is fixedly connected to the liquid cooling plate at a corresponding one of the fluid inlet and outlet ports, a second end of the connecting tube body is connected to one end of the connecting elbow, and an end of the connecting elbow facing away from the connecting tube body is directly fixed to the first connecting flange.

SECONDARY BATTERY, BATTERY PACK AND ELECTRONIC APPARATUS

Resumen de: US20260074332A1

A secondary battery, battery pack, and an electronic apparatus are provided. The secondary battery includes an electrode assembly, a casing, an electrode post, a sealing rivet, and a welding mark. The electrode assembly is accommodated in the casing, and one end of the casing has an opening portion. An end portion of the electrode post away from the electrode assembly protrudes from the casing through the opening portion, and the end portion of the electrode post is provided with a groove. The sealing rivet is matched and embedded in the groove. The sealing rivet is welded and fixed to the electrode post through the welding mark located on a connection portion of an end surface of an outer periphery of the sealing rivet and an end surface of the end portion of the electrode post.

ELECTRIC POWER STORAGE MODULE

Resumen de: US20260074334A1

An electric power storage module including: an electrode stack including a plurality of electrodes each including a current collector, the electrodes being stacked along a first direction; a first resin portion provided to the electrode stack such that an internal space is formed between each of the current collectors adjacent in the first direction, the first resin portion sealing the internal space; and a sealing body joined to the first resin portion, in which the first resin portion has an outer surface including: a first end face in the first direction; a second end face opposite the first end face in the first direction; and four outer side faces extending along the first direction such that the first end face and second end face are connected.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: WO2026051454A1

The present application is applicable to the technical field of batteries (100), and provides a battery cell (10), a battery (100), and an electric device. The electric device comprises the battery (100), the battery (100) comprises the battery cell (10), and the battery cell (10) comprises a casing (2), an electrode assembly (1), and electrode terminals (3). The casing (2) is provided with lead-out holes (201); the electrode assembly (1) is provided in the casing (2); each electrode terminal (3) comprises a terminal body (31) and a first boss (32), and the terminal body (31) covers the corresponding lead-out hole (201); in the axial direction (Z) of the lead-out holes (201), each first boss (32) is provided at the end of the terminal body (31) close to the electrode assembly (1); and the first bosses (32) pass through the lead-out holes (201) and are connected to the electrode assembly (1). The electrode terminals (3) each comprise the first boss (32) provided in the corresponding lead-out hole (201), so that when the size of the casing (2) is fixed, the electrode terminals (3) can extend into the casing (2). In this way, the height of the portions of the electrode terminals (3) located outside the casing (2) can be reduced, thereby reducing the size of the battery cell (10), thus reducing the space occupied by the battery cell (10) in a case (20), improving the space utilization rate of the case (20), and improving the energy density of the battery (100).

BATTERY APPARATUS, VEHICLE AND ELECTRICAL APPARATUS

Resumen de: WO2026051453A1

A battery apparatus (100), a vehicle (1000) and an electrical apparatus. The battery apparatus (100) comprises a box body (10), a first cavity (101) being provided in the box body (10); and battery cells (20) accommodated in the first cavity (101), one end of each battery cell (20) in a first direction being connected to the box body (10), and the other end of each battery cell (20) in the first direction being used for supporting the box body (10). Each battery cell (20) comprises a casing (23), an electrode assembly (24), electrode terminals (21) and a first pressure relief structure (22). The electrode terminals (21) and the first pressure relief structure (22) are respectively arranged at two ends of the casing (23) in the first direction. The electrode assembly (24) is arranged in the casing (23), and is connected to the electrode terminals (21). The ends of the battery cells (20) provided with the electrode terminals (21) are used for supporting the box body. The ends of the battery cells (20) having the electrode terminals (21) provide support for the box body (10), so as to improve the bearing capacity of a box cover.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: WO2026051455A1

The present application is applicable to the technical field of batteries (100), and provides a battery cell (10), a battery (100) and an electric device. The electric device comprises the battery (100). The battery (100) comprises the battery cell (10). The battery cell (10) comprises a casing (2), an electrode assembly (1), an electrode terminal (3) and a first insulating member (4). The casing (2) is provided with a lead-out hole (201); the electrode assembly (1) is arranged in the casing (2); the electrode terminal (3) passes through the lead-out hole (201) or is arranged opposite to the lead-out hole (201); the electrode terminal (3) is connected to the casing (2) and the electrode assembly (1), and is provided with a limiting groove (301); the first insulating member (4) comprises an insulating body (41) and a limiting member (42) connected to the insulating body (41); the insulating body (41) is arranged between the casing (2) and the electrode assembly (1); the limiting member (42) is inserted into the limiting groove (301), and forms positional limitation with the limiting groove (301) in the axial direction (Z) of the lead-out hole. By inserting the limiting member (42) of the first insulating member (4) into the limiting groove (301) of the electrode terminal (3), positional limitation in the axial direction (Z) between the first insulating member (4) and the electrode terminal (3) is achieved, thereby improving the bonding strength between the electrode terminal (

METHOD FOR MEASURING INTERNAL RESISTANCE OF BATTERY

Resumen de: US20260072093A1

The disclosed method is a method for measuring the internal resistance of a battery. The measurement method includes a conduction step of charging or discharging the battery, a measurement step of measuring an open circuit voltage of the battery at the end time of the charging or discharging and thereafter, and a calculation step of individually calculating at least one resistance component included in the internal resistance, based on a voltage change of the open circuit voltage measured in the measurement step and a current value of current flowing through the battery for the charging or discharging at the end time. In the calculation step, the at least one resistance component is calculated based on a slope of a line obtained by plotting the voltage change in a graph in which a horizontal axis indicates a square root of an elapsed time from the end time and a vertical axis indicates the open circuit voltage.

JIG FOR MEASURING THREE-ELECTRODE VOLTAGES

Resumen de: US20260072085A1

A jig for measuring three electrode voltages includes: a jig body having a receiving portion for a secondary battery; a jig door for sealing the receiving portion; a positive electrode on the receiving portion, electrically connected to a positive electrode tab, and protruding outwardly; a negative electrode on the receiving portion of the jig body, being in contact with and electrically connected to a conductive member electrically connected to the secondary battery, and protruding outwardly; and a reference electrode inserted into a winding core of an electrode assembly of the secondary battery in the receiving portion while extending through a top plate of the jig body and protruding to an upper portion of the jig body. The reference electrode comprises a metal wire and a metal cap wrapping around the metal wire, and a length of the metal cap is in a range of 15 mm to 20 mm.

Electronic Device for Detecting Abnormality of Battery and Operating Method of the Electronic Device

Resumen de: US20260072095A1

An electronic device obtains input data through a detection circuit, standardizes each of column vectors of the input data to obtain standardized data for the input data, obtains determination reference data based on the standardized data, and determines first state abnormality and/or second state abnormality of each of the M battery cells based on values indicated by the entries of respective row vectors of the determination reference data. The first state abnormality is determined based on a learning-based model, and the second state abnormality is determined based on a scheme other than the learning-based model.

METHOD OF MANUFACTURING POWER STORAGE DEVICE

Resumen de: US20260072091A1

A method of manufacturing a power storage device including plural power storage cells includes a wire forming process of forming a wire of the power storage device such that adjacent power storage cells in the power storage device are connected to a common wire, and a resistance measuring process of measuring an electrical resistance of at least a part of the formed wire. In the resistance measurement process, the voltage of the open circuit including the second power storage cell and the common wire portion is measured while a current is supplied to the closed circuit including the first power storage cell and the common wire portion with respect to the common wire portion of the first power storage cell and the second power storage cell adjacent to each other in the power storage device, and the electrical resistance of the common wire portion is acquired using the measured voltage.

MULTILAYER NANOPOROUS SEPARATOR

Resumen de: US20260074273A1

A separator for a lithium battery having (a) a porous polymeric layer, such as a polyethylene layer, and (b) a nanoporous inorganic particle/polymer layer on both sides of the polymeric layer, the nanoporous layer having an inorganic oxide and one or more polymers; the volume fraction of the polymers in the nanoporous layer is about 15% to about 50%, and the crystallite size of the inorganic oxide is 5 nm to 90 nm.

SOLID COMPOSITE ELECTROLYTE

Resumen de: US20260074275A1

The present invention relates to a solid composite electrolyte comprising a) at least one fluoropolymer and b) at least one sulfide-based solid ionic conducting inorganic particle, wherein a) the fluoropolymer comprises recurring units derived from i) at least 50.0 mol % of vinylidene difluorides, the mol % being relative to the total moles of recurring units; ii) at least one C2-C8 chloro and/or bromo and/or iodo fluoroolefin; and iii) at least one C2-C8 fluoroolefin, wherein i), ii) and iii) are different from each other; to a slurry for manufacturing a solid composite electrolyte comprising a) at least one fluoropolymer according to the present invention and b) a sulfide-based solid ionic conducting inorganic particle, and c) at least one non-aqueous solvent; to an electrode comprising a solid composite electrolyte according to the present invention, d) at least one electroactive material, and optionally e) at least one conductive agent; and to a solid state battery comprising a positive electrode, a negative electrode and a membrane, at least one among which comprises a solid composite electrolyte according to the present invention. The present invention also relates to a binder solution for a solid state battery comprising a) at least one fluoropolymer according to the present invention and c) at least one non-aqueous solvent.

ELECTROLYTE ADDITIVE FOR SECONDARY BATTERY, NON-AQUEOUS ELECTROLYTE FOR LITHIUM SECONDARY BATTERY INCLUDING SAME AND LITHIUM SECONDARY BATTERY INCLUDING SAME

Resumen de: US20260074286A1

The present invention relates to a novel electrolyte additive, a non-aqueous electrolyte for a lithium secondary battery comprising the novel electrolyte additive, and a lithium secondary battery comprising the non-aqueous electrolyte. More specifically, the present invention relates to a non-aqueous electrolyte for a lithium secondary battery comprising an additive capable of forming a stable film on an electrode surface. The present invention also relates to a lithium secondary battery comprising such a non-aqueous electrolyte, thereby, a high temperature lifespan of the lithium secondary battery is not deteriorated, resistance does not increase when the lithium secondary battery is stored at a high temperature, and expansion of a volume (thickness) of the lithium secondary battery is suppressed when the lithium secondary battery is stored at a high temperature.

APPARATUS FOR MANUFACTURING BATTERY CELL

Resumen de: US20260074264A1

An apparatus for manufacturing a battery cell for processing a sealing part of a battery cell, the sealing part being formed on one side of a body part in which an electrode assembly is accommodated, includes: a support unit including a first support portion and a second support portion supporting the battery cell in different directions; and a pressing unit moving toward the support unit to bend the sealing part, wherein the first support portion reciprocates in a first direction, the second support portion reciprocates in a second direction, and the second direction is inclined with respect to the first direction.

Rechargeable Lithium Batteries

Resumen de: US20260074280A1

A rechargeable lithium battery that includes a positive electrode including a positive electrode active material layer and a current collector; a negative electrode; and an electrolyte solution is provided. The positive electrode active material layer and the electrolyte solution include an additive, a total amount of the additive included in the positive electrode active material layer and the additive included in the electrolyte solution is at least about 0.1 wt % and at most about 1 wt % based on a total positive electrode active material layer. A boiling point of the additive is greater than about 200° C.

Battery Module, and Battery Pack and Vehicle Including the Same

Resumen de: US20260074339A1

A battery module according to the present disclosure may include a plurality of battery cells, a cell frame configured to accommodate the plurality of battery cells, and a filler filled between the plurality of battery cells. At least a portion of the cell frame may be recessed to form a leakage prevention groove for receiving the filler. The cell frame may include a frame wall forming a perimeter of the cell frame and a cell accommodation portion provided inside the frame wall to accommodate the plurality of battery cells, and wherein the leakage prevention groove may be provided between the frame wall and the cell accommodation portion. Thus, leakage of the filler may be prevented when the filler is injected. Additionally, where cell frames cell are coupled to each other, it is possible to prevent the filler from leaking between the cell frames.

SECONDARY BATTERY MODULE, AND SECONDARY BATTERY PACK AND VEHICLE COMPRISING SAME

Resumen de: US20260074338A1

Disclosed is a secondary battery module, and a secondary battery pack and a vehicle including the same. The secondary battery module includes a plurality of secondary battery cells; a frame member coupled to the plurality of secondary battery cells to support the plurality of secondary battery cells and configured to divide the plurality of secondary battery cells into a first region and a second region by the coupling; and a cover configured to accommodate the plurality of secondary battery cells and the frame member, wherein the plurality of secondary battery cells have a water proofing structure, and wherein the water proofing structure prevents a coolant of the first region from flowing to the second region.

AUTOMATIC SPINDLE ADJUSTMENT APPARATUS

Resumen de: US20260074327A1

An automatic spindle adjustment apparatus includes a base frame, a spindle adjuster on the base frame, the spindle adjuster being configured to adjust an upper spindle mover to set a moving range of an upper spindle corresponding to a target occlusal thickness of a battery cell, a vertical mover on the base frame, the vertical mover being configured to move the spindle adjuster in an up-and-down direction, and a horizontal mover on the vertical mover, the horizontal mover being coupled to the spindle adjuster and configured to move the spindle adjuster in a forward-backward direction.

CAP ASSEMBLY, SECONDARY BATTERY, AND METHOD FOR MANUFACTURING SECONDARY BATTERY

Resumen de: US20260074326A1

A cap assembly includes a terminal part to be electrically connected to an electrode plate of an electrode assembly, a laser-transmissive glass part arranged above an area at where a current collection member that electrically connects an electrode plate of the electrode assembly and the terminal part and the electrode assembly are combined, and a cap plate having a terminal opening with which the terminal part is combined and a glass opening with which the glass part is combined that is combined with a case that accommodates the electrode assembly.

HEAT EXCHANGE SYSTEM, BATTERY, AND CONTROL METHOD

Resumen de: US20260074321A1

A heat exchange system, a battery, and a control method. The heat exchange system includes a thermal management component, a throttling apparatus, a first temperature sensor, and a pressure sensor. The thermal management component includes a first medium inlet and a medium outlet. The throttling apparatus is communicated with the first medium inlet. The first temperature sensor is configured to detect the temperature of a first heat exchange medium at the medium outlet. The pressure sensor is configured to detect the pressure of the first heat exchange medium at the medium outlet. The throttling apparatus regulates the flow rate entering the first medium inlet in response to the first temperature sensor and the pressure sensor, to make the first heat exchange medium in the thermal management component in a gas-liquid mixed state.

LITHIUM-ION BATTERY ELECTROLYTE AND LITHIUM ION BATTERY

Resumen de: WO2026051457A1

A lithium-ion battery electrolyte and a lithium-ion battery. In order to solve the problem of poor high-temperature performance and normal-temperature cycle performance of a high-voltage NCM system lithium-ion battery, the electrolyte comprises: an organic solvent, a lithium salt, and an additive, wherein the organic solvent comprises a fluorinated carboxylic ester and a carbonate excluding ethylene carbonate, and wherein the additive comprises one or more of an alkynyl carbonate derivative, a dioxane compound, and a cyclic anhydride, and one or more of vinylene carbonate, fluoroethylene carbonate, ethylene sulfate, lithium difluorophosphate, lithium difluoro bis(oxalato) phosphate, and tris(trimethylsilyl) phosphate. The stability of the high-voltage NCM system lithium-ion battery at a high voltage is greatly improved by means of optimizing the combination of a solvent system and an additive, wherein the solvent system has a mixture of a fluorinated carboxylic ester and a carbonate excluding EC, such that the normal-temperature cycle performance, high-temperature cycle performance, high-temperature storage, and other such capabilities of said high-voltage NCM system lithium-ion battery are all improved.

BATTERY CELL, BATTERY DEVICE AND ELECTRIC APPARATUS

Resumen de: WO2026051439A1

Disclosed in the present disclosure are a battery cell, a battery device and an electric apparatus. The present disclosure relates to the technical field of batteries. The battery cell comprises a terminal post, an electrode assembly and a fixing member, wherein the electrode assembly is electrically connected to the terminal post and is disposed within a casing; the casing has a first wall, and the terminal post is disposed on the first wall; the fixing member comprises a first planar portion, a transition portion and a second planar portion; the transition portion is located between the first planar portion and the second planar portion; the first planar portion is snap-fitted with the terminal post, and the second planar portion is connected to the first wall; and at least one of the thickness of the second planar portion in the axial direction of the terminal post and the thickness of at least part of the transition portion in a direction perpendicular to the axial direction of the terminal post is greater than the thickness of the first planar portion in the axial direction of the terminal post.

HARD CARBON NEGATIVE ELECTRODE MATERIAL, PREPARATION METHOD FOR HARD CARBON NEGATIVE ELECTRODE MATERIAL, AND SODIUM-ION BATTERY

Nº publicación: WO2026051406A1 12/03/2026

Solicitante:

ANSTEEL BEIJING RES INSTITUTE CO LTD [CN]
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Resumen de: WO2026051406A1

The present invention relates to a hard carbon negative electrode material, a preparation method for a hard carbon negative electrode material, and a sodium-ion battery. The hard carbon negative electrode material has a closed pore volume of 0.01 cm3/g