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BATTERY

Resumen de: US2025300318A1

A battery according to the present disclosure includes: a plurality of unit cells each including a pair of electrode layers whose polarities differ from each other, and a solid electrolyte layer that is positioned between the pair of electrode layers; and a plurality of current collectors. The battery has a structure such that the plurality of unit cells and the plurality of current collectors are laminated. The plurality of current collectors include a first current collector that is positioned between the plurality of unit cells and a second current collector that is positioned at a surface portion in a laminating direction of the structure. An end portion of the first current collector is thicker than a central portion of the first current collector. At least a part of the first current collector is thicker than the second current collector.

ELECTRICITY STORAGE DEVICE AND VEHICLE INCLUDING ELECTRICITY STORAGE DEVICE

Resumen de: US2025300294A1

An electricity storage device is to be disposed below a floor panel of a vehicle. The electricity storage device includes at least one electricity storage cell, an accommodation case that includes an upper case and accommodates the at least one electricity storage cell, an adhesive material provided on an upper surface of the at least one electricity storage cell, the adhesive material causing the at least one electricity storage cell to adhere to the upper case, and at least one buffer member disposed between the upper case and the floor panel and also disposed above the adhesive material.

BATTERY PACK

Resumen de: US2025300296A1

A battery pack included a stack cell including a plurality of battery cells, a holder surrounding the stack cell and including a communication hole through which at least a part of the stack cell is exposed to outside of the holder, and a case surrounding the holder. An adhesive is provided for fixing the stack cell, the holder, and the case together.

BATTERY CASE

Resumen de: US2025300297A1

A battery case includes: a first frame in which a plurality of first housing holes each capable of housing one end portion of a battery cell are formed, the battery cell having connection terminals at the one end portion; and a second frame in which a plurality of second housing holes each capable of housing the other end portion of the battery cell are formed, the second frame forming a housing chamber, using the first housing hole and the second housing hole, the housing chamber being capable of housing the battery cell, in which the first housing hole includes a fixing portion that positions and fixes the one end portion of the battery cell.

BATTERY PACK THERMAL RUNAWAY EARLY WARNING METHOD AND THERMAL RUNAWAY EARLY WARNING APPARATUS, SYSTEM, BATTERY PACK AND DEVICE

Resumen de: WO2025194734A1

The present disclosure relates to a battery pack thermal runaway early warning method and thermal runaway early warning apparatus, a system, a battery pack and a device. The method comprises: determining battery pack thermal runaway detection parameters, wherein the battery pack thermal runaway detection parameters comprise at least two of an explosion-proof valve temperature parameter, a battery cell module temperature parameter, a single battery cell voltage parameter, and abnormal sampling information of a battery cell parameter; on the basis of the battery pack thermal runaway detection parameters, determining a battery pack thermal runaway early warning level; and on the basis of the battery pack thermal runaway early warning level, sending corresponding warning information.

POWER BATTERY DIAGNOSIS CIRCUIT AND CONTROL METHOD THEREFOR, AND POWER BATTERY

Resumen de: WO2025194749A1

A power battery diagnosis circuit and a control method therefor, and a power battery. The power battery diagnosis circuit comprises: an equalization module, an equalization diagnosis module, a sampling diagnosis module and a control module, wherein the equalization module and the equalization diagnosis module are both connected in parallel to an equalization switch in an equalization circuit, and the control module is separately connected to the equalization module, the equalization diagnosis module and the sampling diagnosis module. The control module is used for controlling the equalization switch to be in an on state during line diagnosis, such that the equalization module discharges, controlling the equalization switch to be in an off state after the equalization switch remains in the on state for a first preset time, and controlling the equalization diagnosis module and the sampling diagnosis module, so as to perform line diagnosis on a sampling branch and the equalization circuit.

BATTERY CELL AND ELECTRONIC DEVICE

Resumen de: WO2025194718A1

A battery cell (100) and an electronic device. The battery cell (100) comprises a cell core (110), a first tab (120), a second tab (130), and a packaging member (150). The first tab (120) and the second tab (130) are separately connected to the cell core (110), and the first tab (120) and the second tab (130) are located on a same side of the cell core (110); the packaging member (150) comprises a cell accommodating part (151) and a second packaging part (152), the second packaging part (152) is in communication with the cell accommodating part (151), the second packaging part (152) extends away from the cell accommodating part (151) in a first direction and, in a second direction, the size of the second packaging part (152) is less than the size of the cell accommodating part (151); and the first tab (120) and the second tab (130) are each provided with a bending part (140), the bending parts (140) extend in the thickness direction of the cell core (110), the cell core (110) is accommodated in the cell accommodating part (151), and the bending parts (140) are both accommodated in the second packaging part (152). The battery cell (100) can mitigate the problem that during existing battery packaging, the energy density of the battery is affected by a large space wasted between the cell core (110) and a casing. The electronic device comprising the battery cell (100) has a stronger endurance capability.

POWER SUPPLY APPARATUS

Resumen de: US2025300304A1

A power supply apparatus accommodates plural rechargeable batteries at multiple levels, in a height direction, of the power supply apparatus, each rechargeable battery includes a first region and a second region, the first region is provided substantially in a horizontal direction at a rechargeable battery, and the second region is within the first region and is formed to be thicker, in the height direction, than the first region. A first rechargeable battery and a second rechargeable battery that is adjacent to the first rechargeable battery in the height direction are arranged to be offset in a front-rear direction of the power supply apparatus, and a distance, in the height direction, between a bottom face of the first rechargeable battery and a bottom face of the second rechargeable battery is less than a thickness dimension, in the height direction, of the second region of the first rechargeable battery.

ELECTRICITY STORAGE CELL

Resumen de: US2025300302A1

An electricity storage cell includes at least one cell unit, and a cell case that accommodates the at least one cell unit. The cell case includes a case main body having an opening on an upper side, and a lid connected to the case main body so as to close the opening of the case main body. The case main body includes a bottom wall positioned below the at least one cell unit. The lid includes a pressing portion that presses the at least one cell unit toward the bottom wall.

BATTERY CASE

Resumen de: US2025300290A1

A battery case includes: a plurality of battery cells stacked on one another and accommodated in a battery lower case; an upper cover covering an upper portion of the stacked battery cells; at least one first bracket including a first end and a second end provided to be in contact with an upper surface of the upper cover, and a middle portion spaced apart from the upper surface of the upper cover to form an insertion space; and a battery upper case provided above the battery lower case. In particular, the battery upper case includes a second bracket provided on a lower surface thereof, and the second bracket includes a first end to be inserted in an insertion space formed between the upper surface of the upper cover and the first bracket.

BATTERY AND METHOD FOR MANUFACTURING BATTERY

Resumen de: US2025300285A1

A battery is provided and includes an electrode body including a positive electrode terminal and a negative electrode terminal; and an exterior member that houses the electrode body. The exterior member includes: a box member that has a metallic box shape including a first side part with a through hole; a plate member disposed inside the through hole to be separated from the first side part in a plan view from the first side part; and a sealing body including a resin layer in contact with each of a first contact surface of the first side part and a second contact surface of the plate member, the resin layer sealing a gap between the first side part and the plate member. Each of the first contact surface and the second contact surface has a plurality of recesses arranged in a matrix at a site overlapped with the resin layer in the plan view from the first side part. The recesses are filled with a part of the resin layer.

BATTERY PACK

Resumen de: US2025300314A1

A battery pack includes a housing, a plurality of battery cells in the housing and each comprising a vent hole, a first holder in the housing and configured to support a side of each of the battery cells, a first connection member facing the first holder and electrically connected to the battery cells, and a guide in the first connection member and configured to guide a flow of an emission discharged from the vent hole.

BATTERY PACK CASE FOR ELECTRIC VEHICLE

Resumen de: US2025300288A1

A battery pack case for an electric vehicle is provided. The battery pack includes: a lower case including an outer wall and one or more partition walls therein, each of the outer wall and the one or more partition walls including one or more gas storage devices that store gas; and an upper case connected to the lower case and including spray plates that spray gases introduced from the one or more gas storage devices. The one or more gas storage devices are integrated with the one or more partition walls and the outer wall of the lower case, and the battery pack case accommodates one or more battery modules.

SECONDARY BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025194671A1

The present disclosure relates to a secondary battery and an electric device. The secondary battery comprises a negative electrode sheet, which comprises a negative electrode current collector and a negative electrode film layer formed on at least one surface of the negative electrode current collector, wherein the negative electrode film layer comprises a lower region and an upper region; the lower region comprises a first negative electrode active material; the upper region comprises a second negative electrode active material; the second negative electrode active material comprises both a carbon material of primary particles and a carbon material of secondary particles; and the volume median diameter Dv50 of the second negative electrode active material is less than or equal to 13 μm.

BATTERY PROTECTION BOARD, BATTERY APPARATUS, AND ELECTRICAL DEVICE

Resumen de: WO2025194738A1

A battery protection board, a battery apparatus, and an electrical device. The battery protection board comprises a circuit board and a first conductive member; the circuit board comprises a board body, a first conductive path, and a second conductive path; the first conductive path and the second conductive path are both arranged on the board body and are insulated from each other; the first conductive path is adapted to be electrically connected to a first electrode of a battery cell; the second conductive path is adapted to be electrically connected to a second electrode of the battery cell; the first electrode and the second electrode have opposite polarities; the first conductive member is attached to the board body and is connected in parallel with at least part of the first conductive path.

BATTERY BLUE-FILM COATING SYSTEM AND BATTERY BLUE-FILM COATING DETECTION METHOD

Resumen de: WO2025194675A1

The present application belongs to the technical field of batteries. Provided are a battery blue-film coating system and a battery blue-film coating detection method. The system comprises: a battery cell, which comprises a battery cell body and a blue film, wherein the battery cell body comprises a top surface and a bottom support face; a mechanical gripper, which comprises a first gripper and a second gripper, the two grippers being respectively configured to clamp onto two opposite side faces of the battery cell body; a blue strip-shaped light source, which is arranged at a preset angle with the bottom support face, wherein a light source face of the blue strip-shaped light source faces the bottom support face; an image acquisition unit, which is a monochrome camera, is arranged opposite the bottom support face and is configured to acquire a detection image of the bottom support face; and an upper computer, which is configured to: extract, on the basis of a detection frame, a first region from the detection image; extract, on the basis of the first region, a second region from the region of the detection image that is defined by the detection frame to generate a third region; remove the third region from the region of the detection image that is defined by the detection frame to extract a defect detection region; and determine, on the basis of the defect detection region, detection determination parameters.

BATTERY CELL, BATTERY, AND ELECTRICAL APPARATUS

Resumen de: WO2025194715A1

A battery cell, a battery (2), and an electrical apparatus. The battery cell comprises a housing (10), a first valve (20), and a second valve (30). The housing (10) is provided with a liquid injection hole (11) and a gas release hole (12), one of the first valve (20) and the second valve (30) being disposed at the liquid injection hole (11), and the other of the first valve (20) and the second valve (30) being disposed at the gas release hole (12). The first valve (20) and the second valve (30) are both configured to be capable of switching between connecting and disconnecting the internal space of the housing (10) and the external space of the housing (10).

BATTERY CASE

Resumen de: US2025300306A1

A battery case includes: a first frame in which a plurality of first housing holes each capable of housing one end portion of a battery cell are formed, the battery cell having connection terminals at the one end portion; and a second frame in which a plurality of second housing holes each capable of housing the other end portion of the battery cell are formed, the second frame forming a housing chamber, using the first housing hole and the second housing hole, the housing chamber being capable of housing the battery cell, in which the second housing hole includes a positioning portion for positioning the other end portion of the battery cell in a housing direction, and the positioning portion is a protrusion portion formed to protrude toward an inside of the second housing hole over an entire circumference of a lower end portion of the second housing hole.

BATTERY PACK

Resumen de: US2025300303A1

A battery pack includes a battery module including battery cells and a bus bar configured to electrically connect the battery cells, and a circuit board connected to the battery module that includes a first portion extending in a longitudinal direction of the battery module, second portions extending from the first portion in a direction crossing the first portion that each include a circuit pattern, and a third portion connected to an end of each of the second portions and connected to the bus bar. Each second portion extends straight without being bent or folded.

Pouch-Type Battery Case and Pouch-Type Secondary Battery Including the Same, Method for Pouch-Type Battery Case, and Forming Jig for Manufacturing Pouch-Type Battery Case

Resumen de: US2025300279A1

A pouch-type battery case according to an embodiment of the present disclosure may include: an accommodation part having a recessed shape; a folding part disposed at one side of the accommodation part; and a terrace part expanded around the accommodation part. The folding part may have a stepped portion with respect to the terrace part outward in a direction orthogonal to a longitudinal direction of the folding part. A circumference of the accommodation part may include: a first circumferential portion to which the terrace part is connected; and a second circumferential portion configured to connect both ends of the folding part to the terrace part, wherein a thickness of the second circumferential portion may be less than that of the first circumferential portion.

SECONDARY BATTERY

Resumen de: US2025300284A1

A secondary battery is provided that is has reduced production cost. The secondary battery includes an electrode assembly, including a first electrode plate, a second electrode plate, and a separator. A first case surrounds a first surface of the electrode assembly, and a second case surrounds a second surface of the electrode assembly that is opposite to the first surface. An insulating gasket is positioned between the first case and the second case and coupled to at least one of the first case or the second case. The first case and the second case are coupled to each other with an interference fit with the insulating gasket interposed between the first case and the second case.

BATTERY CELL HOLDER, BATTERY MODULE, AND BATTERY PACK

Resumen de: US2025300301A1

Provided is a battery cell holder including a housing portion that houses a columnar battery cell, in which the housing portion includes: a first housing portion that is a columnar space having a first diameter; and a second housing portion that is a columnar space having a second diameter smaller than the first diameter, and in which, when viewed from above, the housing portion has a shape in which an outer circumference of the first housing portion and an outer circumference of the second housing portion are partly combined with each other.

LITHIUM IRON PHOSPHATE/CARBON/LITHIUM-RICH LITHIUM IRON OXIDE COMPOSITE CATHODE MATERIAL AND PREPARATION METHOD AND APPLICATION THEREOF

Resumen de: US2025300169A1

A lithium iron phosphate/carbon/lithium-rich lithium iron oxide composite cathode material and a preparation method and an application thereof are provided. The preparation method includes the following steps: mixing iron salt, lithium compound, orthophosphate and an organic salt with water, to obtain a mixed slurry; performing a spray granulation on the mixed slurry, to obtain a precursor powder; and performing a heat preservation on the precursor powder in a protective atmosphere, to obtain a lithium iron phosphate/carbon/lithium-rich lithium iron oxide composite cathode material. The preparation method is based on the characteristics that electric double layer physical energy storage of porous carbon can enhance the rate, and lithium-rich lithium iron oxide additive can increase the system lithium source and prolong the service life, combined with the synthesis process of lithium iron phosphate and lithium-rich lithium iron oxide, a lithium iron phosphate/carbon/lithium-rich lithium iron oxide composite cathode material is synthesized by one-step method.

INFORMATION COLLECTION DEVICE AND BATTERY PACK

Resumen de: US2025297911A1

An information collection device includes a casing, an air pressure sensor, and a sealing member. The casing has a first installation hole, the air pressure sensor is installed inside the casing, and at least a part of the air pressure sensor is snap-fitted into the first installation hole to acquire an air pressure parameter outside the casing. The sealing member seals the first installation hole, and the sealing member is used to allow gas to pass through and prevent liquid from passing through. Thereby, the information collection device is arranged in the battery cell, enabling it to collect information in an environment of electrolyte, thus mitigating the technical problems of complex structure and insufficient reliability of the cover plate of the battery cell caused by the external arrangement of the prior art information collection device.

PROCESSES FOR PREPARING HYDROXIDES AND OXIDES OF VARIOUS METALS AND DERIVATIVES THEREOF

Nº publicación: US2025296852A1 25/09/2025

Solicitante:

NEMASKA LITHIUM INC [CA]
NEMASKA LITHIUM INC

Resumen de: US2025296852A1

There are provided processes for preparing a metal hydroxide comprising (i) at least one metal chosen from nickel and cobalt and optionally (ii) at least one metal chosen from manganese, lithium, copper, magnesium and aluminum, the process comprising:reacting a metal sulfate comprising (i) at least one metal chosen from nickel and cobalt and optionally (ii) at least one metal chosen from manganese, lithium, copper, magnesium and aluminum with lithium hydroxide, sodium hydroxide and/or potassium hydroxide and optionally a chelating agent in order to obtain a solid comprising the metal hydroxide and a liquid comprising lithium sulfate, sodium sulfate and/or potassium sulfate;separating the liquid and the solid from one another to obtain the metal hydroxide;submitting the liquid comprising lithium sulfate, sodium sulfate and/or potassium sulfate to an electromembrane process for converting the lithium sulfate, sodium sulfate and/or potassium sulfate into lithium hydroxide, sodium hydroxide and/or potassium hydroxide respectively;reusing the sodium hydroxide obtained by the electromembrane process for reacting with the metal sulfate; andreusing the lithium hydroxide obtained by the electromembrane process for reacting with the metal sulfate and/or with the metal hydroxide.