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Battery Cell, Battery Pack Including Battery Cell, and Vehicle Including Battery Pack

Resumen de: US2025349995A1

A battery cell includes an electrode assembly, a cell case, a first conductive frame, and a second conductive frame. The electrode assembly has a cell body and an electrode tab extending from the cell body and the cell case has an accommodation portion configured to accommodate the electrode assembly and a peripheral portion extending outward from the accommodation portion. The first conductive frame is located on a first surface of the peripheral portion and electrically connected to the electrode tab through the peripheral portion. The second conductive frame is located on a second surface of the peripheral portion and electrically connected to the electrode tab through the peripheral portion. A battery pack including the same is also provided.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: US2025349994A1

The present application belongs to the technical field of batteries, and provides a battery cell, a battery, and an electric device. The battery cell includes an electrode body, tabs, and connectors. The tab has a first side edge and a second side edge opposite to each other, the first side edge of the tab is connected to the electrode body, and the connector is connected to the second side edge of the tab. A bending portion is provided between the first side edge and the second side edge of the tab. According to the battery cell provided in the present application, the possibility that the tab is pulled and broken when the battery cell expands can be reduced, thereby improving the reliability of the battery cell.

COLLECTOR AND CYLINDRICAL SECONDARY BATTERY INCLUDING THE SAME

Resumen de: US2025349993A1

A cylindrical secondary battery includes an electrode assembly provided with an electrode tab; a battery can configured to accommodate the electrode assembly; a terminal configured to pass through the battery can and insulated from the battery can; and a collector configured to electrically connect the electrode tab to the terminal. The collector may include an edge part; a terminal coupling part disposed inside the edge part and coupled to the terminal; a bridge configured to connect the edge part to the terminal coupling part; and a tab coupling part extending inward from the edge part, spaced apart from the bridge and the terminal coupling part, and coupled to the electrode tab. The bridge includes a hole defined in a central portion of the bridge in a width direction of the bridge.

BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS

Resumen de: US2025349992A1

A battery cell, a battery, and an electric apparatus are provided. The battery cell includes a casing, an electrode assembly, an electrode terminal, and a current collecting member. The casing includes a first wall, and the electrode assembly is housed within the casing. The electrode terminal is disposed on the first wall, with a first recess formed at the end of the terminal facing the electrode assembly. The opposite end of the terminal is connected to a busbar component. The current collecting member is connected to the electrode assembly and at least partially received in the first recess, where it is joined to the bottom of the recess. This configuration eliminates the need for an additional recess and cover plate on the terminal end facing the busbar, thereby improving the connection stability between the electrode terminal and the busbar and reducing the risk of connection failure during use.

BATTERY CELL FOR A VEHICLE

Resumen de: US2025349991A1

The disclosure relates to a battery cell comprising a housing having an inner wall, a first battery terminal and a second battery terminal, the battery cell further comprising an electrode assembly with a first electrode having a first current collector electrically connected to the first battery terminal and a second electrode having a second current collector electrically connected to the second battery terminal, the second current collector is configured with a variable height along an extension axis of the housing, the variable height varying based on a temperature of the electrode assembly, and the second current collector is able to slide along the extension axis the relative to the housing.

Electrode Lead and Lead Input Pallet Having Shape Corresponding Thereto

Resumen de: US2025349989A1

An electrode lead having an asymmetric shape to geometrically distinguish a direction is provided. A lead input pallet with a direction restriction portion corresponding to an asymmetric shape of an electrode lead is provided. The electrode lead may have burrs generated due to a metal plate being cut and processed by a press forming. The asymmetric shape of the electrode lead and corresponding asymmetric shape of the lead input pallet provides that an electrode lead may be arranged in the pallet in a known direction with respect to any burrs formed on the lead.

BUSBAR UNIT

Resumen de: US2025349987A1

A busbar unit includes a busbar including a bolt fastening portion and a connector terminal portion, and a molded resin portion for covering the busbar. The molded resin portion includes a connector housing portion for covering the connector terminal portion by being provided apart from a side surface of a battery pack in a first direction to face the side surface, an intermediate covering portion for covering an intermediate portion of the busbar extending out from the connector housing portion and a projection projecting from the connector housing portion toward the side surface of the battery pack, the projection contacting the side surface of the battery pack.

Modular Battery Systems for Aircraft

Resumen de: US2025349985A1

A modular battery system includes an array of battery modules arranged in at least one stack. Each battery module includes a plurality of battery cells, a first side having positive and negative receptacles and a second side, that is opposite of the first side, having positive and negative plugs. The receptacles and plugs are configured such that adjacent battery modules in a side-by-side relationship are electrically coupled together via plug and receptacle connections and such that the battery modules are electrically coupled together in parallel. An interconnection electrically couples each stack of battery modules together via plug and receptacle connections with one of the battery modules in each stack such that the stacks of battery modules are electrically coupled together in parallel. Each of the battery modules includes a voltage regulator configured to convert voltage between a battery cell voltage and a bus voltage.

LITHIUM SECONDARY BATTERY AND COMPOSITE MEMBER

Resumen de: US2025349980A1

Disclosed is a lithium secondary battery including: a positive electrode; a negative electrode; a separator provided between the positive electrode and the negative electrode; and a lithium ion-conductive non-aqueous electrolyte. The negative electrode is an electrode on which lithium metal deposits during charge and the lithium metal dissolves during discharge. A first spacer is provided between the negative electrode and the separator, and a second spacer is provided between the positive electrode and the separator.

DIAPHRAGM AND MANUFACTURING METHOD THEREFOR, AND ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Resumen de: US2025349978A1

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.

THERMAL COMPOSITE LAMINATED CELL AND BATTERY

Resumen de: US2025349979A1

A thermal composite laminated cell and a battery cell are disclosed by this application. The thermal composite laminated battery cell includes a first cell unit, a second cell unit and a separator with a continuous layer structure, wherein the outermost sides of the first cell unit are negative electrode sheets, and the outermost sides of the second cell unit are positive electrode sheets. The separator with a continuous layer structure includes a plurality of main bodies and a plurality of bent portions all alternately and continuously disposed, the first cell units and the second cell units are alternately disposed in a thickness direction, and the adjacent first cell unit and the second cell unit are separated by the main body.

BATTERY MODULE AND BATTERY SYSTEM

Resumen de: AU2025256272A1

A battery module is provided. The battery module includes a liquid tight battery enclosure and at least one cell assembly. The battery enclosure includes a front plate, a back plate, a battery housing, a fluid inlet, a fluid outlet, and at least two enclosure interfaces. The fluid inlet is disposed on the front plate for a fluid to flow into the battery enclosure. The fluid outlet is disposed on the front plate for the fluid to flow out of the battery enclosure. The at least two enclosure interfaces are disposed on the front plate. The at least one cell assembly has battery cells, at least one cell holder, at least two cell-connectors, and at least two assembly electrodes. Each of the at least two assembly electrodes is respectively coupled to one of the at least two enclosure interfaces and electrically exposed to an exterior of the front plate. A battery module is provided. The battery module includes a liquid tight battery enclosure and at least one cell assembly. The battery enclosure includes a front plate, a back plate, a battery housing, a fluid inlet, a fluid outlet, and at least two enclosure interfaces. The fluid inlet is disposed on the front plate for a fluid to flow into the battery enclosure. The fluid outlet is disposed on the front plate for the fluid to flow out of the battery enclosure. The at least two enclosure interfaces are disposed on the front plate. The at least one cell assembly has battery cells, at least one cell holder, at least two cell-connector

BATTERY MODULE AND BATTERY SYSTEM

Resumen de: AU2025256270A1

A battery module is provided. The battery module includes a liquid tight battery enclosure and at least one cell assembly. The battery enclosure includes a front plate, a back plate, a battery housing, a fluid inlet, a fluid outlet, and at least two enclosure interfaces. The fluid inlet is disposed on the front plate for a fluid to flow into the battery enclosure. The fluid outlet is disposed on the front plate for the fluid to flow out of the battery enclosure. The at least two enclosure interfaces are disposed on the front plate. The at least one cell assembly has battery cells, at least one cell holder, at least two cell-connectors, and at least two assembly electrodes. Each of the at least two assembly electrodes is respectively coupled to one of the at least two enclosure interfaces and electrically exposed to an exterior of the front plate. A battery module is provided. The battery module includes a liquid tight battery enclosure and at least one cell assembly. The battery enclosure includes a front plate, a back plate, a battery housing, a fluid inlet, a fluid outlet, and at least two enclosure interfaces. The fluid inlet is disposed on the front plate for a fluid to flow into the battery enclosure. The fluid outlet is disposed on the front plate for the fluid to flow out of the battery enclosure. The at least two enclosure interfaces are disposed on the front plate. The at least one cell assembly has battery cells, at least one cell holder, at least two cell-connector

RECOVERY OF LITHIUM FROM LITHIUM IRON PHOSPHATE BLACK MASS

Resumen de: WO2024215890A1

LiFePO4 or LiMnxFe(1-x)PO4-containing black mass or a material that is derived from LiFePO4 or LiMnxFe(1-x)PO4 -containing black mass is acid baked or salt baked and leached with water to extract Li+, one or more types of non-lithium cations, and SO4 2-. A basic reagent is added to the acidic leachate to precipitate salts of the non-lithium cation(s) to form solid leachate tailings. After separating the lithium-enriched liquor from the solid leachate tailings to produce a product liquor, the product liquor is optionally contacted with a precipitation agent in order to precipitate product Li2CO3 or LiOH.

CONTAINER MODULE

Resumen de: AU2024399194A1

Disclosed is a container module. The container module according to an embodiment of the present invention may include: a case that provides an inner space; a battery pack that is accommodated inside the case; a pipe that is located inside the case and has a flow path; and a drain case that is located below the pipe and provides an inner space.

METHOD FOR RECYCLING GRAPHITE AND RECYCLED GRAPHITE

Resumen de: AU2024265063A1

The present disclosure concerns a method (100) for producing recycled graphite, the method (100) comprising the steps of providing a reclaimed graphite concentrate comprising any one or more of carboxymethyl cellulose and styrene-butadiene rubber, pre-treating (120) the reclaimed graphite concentrate by subjecting the reclaimed graphite concentrate to an oxidizing environment at a temperature in the range 250 - 380 °C, thereby reducing the total concentration of carboxymethyl cellulose and styrene- butadiene rubber to less than 0.25 %, and thermally treating (130) the pre-treated reclaimed graphite concentrate by subjecting the pre-treated reclaimed graphite concentrate to a non-oxidizing environment at a temperature of at least 2300 °C. The invention also describes a recycled graphite, use of a recycled graphite, and a battery comprising a recycled graphite.

Lithium-ion battery negative electrode and lithium-ion battery

Resumen de: AU2025202590A1

LITHIUM-ION BATTERY NEGATIVE ELECTRODE AND LITHIUM-ION The present invention relates to the field of batteries, in particular to a lithium-ion battery negative electrode and a lithium-ion battery. A negative electrode for a lithium-ion battery comprises a negative electrode current collector and a negative electrode material applied to the negative electrode current collector, characterized in that a compaction density of the negative electrode material is 1.3 - 1.7 g/cm3, a single-side application weight of the negative electrode material on the negative electrode current collector is 3.5 - 6.5 mg/cm2, and a single-side negative electrode material thickness of the negative electrode is 20 - 50 μm. The negative electrode for a lithium-ion battery can improve the self-discharge current of a lithium-ion battery. LITHIUM-ION BATTERY NEGATIVE ELECTRODE AND LITHIUM-ION The present invention relates to the field of batteries, in particular to a lithium-ion battery negative electrode and a lithium-ion battery. A negative electrode for a lithium-ion battery comprises a negative electrode current collector and a negative electrode material applied to the negative electrode current collector, characterized in that a compaction density of the negative electrode material is 1.3 - 1.7 g/cm³, a single-side application weight of the negative electrode material on the negative electrode current collector is 3.5 - 6.5 mg/cm ², and a single-side negative electrode material thickness of the

BATTERY CABINET

Resumen de: AU2024277647A1

A double-walled battery charging cabinet can include: an outer cabinet wall; an inner cabinet wall spaced apart from the outer cabinet wall to form an insulating air gap between the inner cabinet wall and the outer cabinet wall, the inner cabinet wall defining an interior volume; and an air convection port disposed through the outer cabinet wall and the inner cabinet wall. The double-walled battery charging cabinet can further include: a flame arrestor positioned inside or adjacent to the air convection port; a damper positioned adjacent to the air convection port, the damper being biased toward a closed position; a fusible link to hold the damper in an open position, the fusible link having a predetermined melting point at which the damper is released to slide horizontally from the open position to the closed position; and a power outlet disposed inside the interior volume.

NEGATIVE ELECTRODE SHEET, BATTERY AND ELECTRIC DEVICE

Resumen de: AU2024247045A1

A negative electrode sheet, a battery and an electric device. The negative electrode sheet comprises a current collector and a negative electrode active material layer that coats at least one surface of the current collector, wherein the negative electrode active material layer comprises a negative electrode active material, an inorganic porous material and a binder; and the inorganic porous material accounts for 0.1%-5% of the total mass of the negative electrode active material layer.

Composite anode material and preparation method thereof

Resumen de: AU2024227400A1

COMPOSITE ANODE MATERIAL AND PREPARATION METHOD A composite anode material is provided. The composite anode material includes a graphite, a plurality of silicon particles, and a carbon coating layer. The graphite is pretreated with surface modification through an organic polymer. The plurality of silicon particles are coated on the graphite. The carbon coating layer is coated on the graphite and the plurality of silicon particles. The carbon coating layer is formed by carbonizing the organic polymer through a heat treatment. A preparation method of the composite anode material includes steps as follows. Firstly, a graphite and an organic polymer are mixed to form a first composite particle. Secondly, the first composite particle and a plurality of silicon particles are mixed to form a second composite particle. Finally, a heat treatment is performed on the second composite particle to form the composite anode material. COMPOSITE ANODE MATERIAL AND PREPARATION METHOD A composite anode material is provided. The composite anode material includes a graphite, a plurality of silicon particles, and a carbon coating layer. The graphite is pretreated with surface modification through an organic polymer. The plurality of silicon particles are coated on the graphite. The carbon coating layer is coated on the graphite and the plurality of silicon particles. The carbon coating layer is formed by carbonizing the organic polymer through a heat treatment. A preparation method of the composit

NEGATIVE ELECTRODE SHEET, BATTERY AND ELECTRIC DEVICE

Resumen de: AU2024247141A1

A negative electrode sheet, a battery and an electric device. The negative electrode sheet comprises a current collector and a negative electrode active material layer that coats at least one surface of the current collector, wherein the negative electrode active material layer comprises a negative electrode active material, a silicon dioxide aerogel and a binder; the negative electrode active material is filled with the silicon dioxide aerogel; and the silicon dioxide aerogel accounts for 0.1%-5% of the total mass of the negative electrode active material layer.

LIQUID COOLING STRUCTURE AND BATTERY PACK

Resumen de: US2025349929A1

A liquid cooling structure and a battery pack are disclosed in the present disclosure. The liquid cooling structure includes: a support plate, configured to support cells; and a vertical plate, perpendicular to the support plate. The vertical plate includes a main body and a plurality of telescopic ribs provided within the main body, a liquid cooling channel configured to circulate a liquid coolant is formed in the main body, the plurality of the telescopic ribs are spaced apart in the liquid cooling channel, and each of the telescopic ribs is connected between two opposite side walls of the liquid cooling channel to separate the liquid cooling channel into a plurality of sub-channels.

ALL-SOLID-STATE BATTERY INCLUDING A SILICON-CONTAINING LAYER

Resumen de: US2025349840A1

Disclosed is a lithium all-solid-state battery and a method for manufacturing the same. The lithium all-solid-state battery includes a positive electrode, a negative electrode current collector, a solid electrolyte layer between the negative electrode current collector and the positive electrode, and a silicon-containing metal layer on a surface of the negative electrode current collector facing the solid electrolyte layer. The lithium metal is formed on the negative electrode current collector by movement of lithium metal ions from the positive electrode to the silicon-containing metal layer on the surface of the negative electrode current collector through charge, and a ratio (Ns/P) of a charge capacity of the silicon-containing metal layer (Ns) to a charge capacity of the positive electrode (P) is less than 0.3.

SOLID-STATE BATTERY CELL ASSEMBLY AND PREPARATION METHOD THEREFOR, BATTERY, AND APPLICATION THEREOF

Resumen de: US2025349904A1

A solid-state battery cell assembly is provided with a base membrane between a positive electrode and a solid-state electrolyte layer and/or between a negative electrode and the solid-state electrolyte layer that are included therein. An electrolyte solution is adsorbed onto the base membrane. The base membrane included in the solid-state battery cell assembly can effectively reduce the direct contact of the contained electrolyte solution with the electrodes and the solid-state electrolyte layer, which can reduce the consumption of the electrolyte solution in the charge and discharge processes, and meanwhile, also can reduce the absorption of the electrolyte solution by the solid-state electrolyte layer.

BATTERY MANAGEMENT SYSTEM AND METHOD FOR PERFORMING PASSIVE BALANCING OF BATTERY CELLS IN A SERIES-CONNECTED BATTERY PACK

Nº publicación: US2025349913A1 13/11/2025

Solicitante:

STMICROELECTRONICS INT N V [CH]
STMicroelectronics International N.V

Resumen de: US2025349913A1

Example battery management systems, methods, and computer program products for managing the passive charge balancing of a battery pack are provided. A first example battery management system includes a battery pack, a battery management integrated circuit, and a battery management controller. The battery management integrated circuit includes a discharge circuit for each battery cell, having a shared balancing resistor connected to an adjacent battery cell. The battery management controller electrically coupled to the battery management integrated circuit, and configured to identify a least charged battery cell; iteratively select a plurality of highest charged battery cells, wherein no two highest charged battery cells are adjacent, and wherein each highest charged battery cell of the plurality of highest charged battery cells is greater than the least charged battery cell plus an unbalance threshold; and enable the discharge enable switch associated with each highest charged battery cell.