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BATTERY MODULE, BATTERY PACK, AND ELECTRIC DEVICE

Resumen de: US2025174796A1

A battery module includes a cell assembly, an elastic member, and a buffer, the cell assembly includes a plurality of cell units stacked along a first direction, the cell units includes a cell and a first bracket. The cell includes a cell housing, an electrode assembly, and electrode terminals, the cell housing includes a main body and a first sealing portion, the main body is provided with a first end surface, the first sealing portion is connected to the first end surface. The first bracket includes a first coverage portion, the first coverage portion covers at least a part of the first end surface. Along the first direction, the buffer is provided between the elastic member and the cell assembly. The buffer includes a first section, along a second direction, the first section extends beyond the first end surface close to the buffer.

CONTAINER-TYPE ENERGY STORAGE SYSTEM

Resumen de: US2025174792A1

A container-type energy storage system is provided. The container-type energy storage system includes: a container, provided with a plurality of first compartment doors; a battery compartment, defined in the container; a plurality of battery clusters are provided in the battery compartment, and the plurality of battery clusters are in one-to-one correspondence with the plurality of first compartment doors.

VEHICULAR BATTERY CHARGER, CHARGING SYSTEM, AND METHOD WITH PROGRAMMED CHARGING SESSION OVERRIDE

Resumen de: US2025174745A1

A vehicle battery charger and a vehicle battery charging system are described and illustrated, and can include a controller enabling a user to enter a time of day at which the vehicle battery charger or system begins and/or ends charging of the vehicle battery. The vehicle battery charger can be separate from the vehicle, can be at least partially integrated into the vehicle, can include a transmitter and/or a receiver capable of communication with a controller that is remote from the vehicle and vehicle charger, and can be controlled by a user or another party (e.g., a power utility) to control battery charging based upon a time of day, cost of power, or other factors.

METHOD FOR PRODUCING ALL-SOLID-STATE BATTERY

Resumen de: US2025174738A1

A method for producing a lithium deposition type all-solid state battery having reliably suppressing short circuits is provided. The all-solid state battery includes a positive electrode, a negative electrode having a negative electrode current collector, a solid electrolyte layer interposed between the positive electrode and the negative electrode; and an intermediate layer interposed between the negative electrode current collector and the solid electrolyte layer, where the intermediate layer includes at least one type of a lithium reactive material. The method includes performing a first charging step on an uncharged all-solid state battery from an uncharged state to a capacity C1mAh/cm2, thereby forming an all-solid state battery precursor, and performing a second charging step on the all-solid state battery precursor from a capacity C2 mAh/cm2.

BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Resumen de: US2025174855A1

A battery cell includes an electrode assembly. The electrode assembly includes: a negative electrode plate, including a negative current collector and a negative active material layer; and a positive electrode plate, including a positive current collector and a positive active material layer. A positive tab extends out from a first edge of the positive electrode body. The positive active material layer is disposed on a surface of the positive electrode body. Along a thickness direction of the negative electrode body, a projection of the positive active material layer on the negative electrode plate falls in the negative active material layer. The negative electrode plate further includes a first insulation layer. Along the thickness direction of the negative electrode body, a projection of the first edge on the negative electrode plate falls in the first insulation layer.

ELECTRODE ASSEMBLY AND RECHARGEABLE BATTERY INCLUDING THE SAME

Resumen de: US2025174853A1

An electrode assembly includes a first electrode including a first substrate and a first active material layer formed on a front and a back of the first substrate, respectively, a second electrode including a second substrate and a second active material layer formed on the front and the back of the first substrate, respectively, a separator between the first electrode and the second electrode, and a first insulation layer and a second insulation layer formed on the front and the back of the first substrate, respectively, and covering an end of the first active material layer, the first insulation layer and the second insulation layer having different lengths.

BATTERY PACK, VEHICLE AND MONITORING METHOD FOR THERMAL RUNAWAY THEREOF

Resumen de: US2025174739A1

Disclosed in the disclosure is a battery pack, a vehicle, and a monitoring method for thermal runaway thereof. The battery pack includes: a cell set, including a plurality of single cells stacked in sequence; an end plate, provided along a stacking direction of the plurality of single cells on an end of the cell set; a monitoring structure, provided on at least one lateral surface that is parallel to the plurality of single cells and the end plate, configured to monitor an expansion deformation value of the plurality of single cells; a battery management system, BMS, electrically connected to the monitoring structure, configured to calculate a deformation rate and a deformation velocity in a preset time according to the expansion deformation value so as to determine whether the battery pack is in a thermal runaway state according to the deformation rate and the deformation velocity.

BATTERY CELL, BATTERY MODULE AND VEHICLE COMPRISING A BATTERY CELL OR A BATTERY MODULE

Resumen de: US2025174854A1

In an aspect, the disclosure relates to a battery cell, comprising: a housing; an electrode material; a current collector; and an interface component; and wherein the housing comprises the electrode material, at least a portion of the current collector and the interface component; wherein the current collector comprises a first connection portion connected to the electrode material and a second connection portion connectable to a battery terminal; wherein the interface component is arranged between the current collector and the housing; wherein the interface component is in contact with the current collector and the housing; wherein the interface component is configured for electrically insulating the housing from the current collector; and wherein the interface component comprises an interface material having a thermal conductivity of at least 1 W/(m*K).

DRY ELECTRODE STRUCTURE AND METHOD OF MANUFACTURING THE SAME

Resumen de: US2025174668A1

Provided are a dry electrode structure and a method of manufacturing the same. An electrode structure may include an electrode substrate including a conductive material, a dry electrode portion bonded to the electrode substrate, and a bonding reinforcement portion on the electrode substrate to reinforce bonding force between the electrode substrate and the dry electrode portion.

Dry electrode for energy storing devices

Resumen de: US2025174663A1

Electrical energy storage devices made using a wet electrode application technique are associated with high energy consumption. Herein, a dry electrode or electrolyte application process involves mixing activated carbon with a binder and then fibrillating the mixture. The mixture is roll-pressed into a film, which is then actively cooled. Optionally, tension in the cooled portion of the film is increased for spooling the film. The film is adhered to a pre-treated current collector and then wound into a jelly roll for the manufacture of an electrical energy storage device.

AIRCRAFT POWER BATTERY, AIRCRAFT, AND AIRCRAFT POWER BATTERY INTEGRATED POWER SUPPLY METHOD

Resumen de: US2025174755A1

An aircraft power battery, an aircraft, and an aircraft power battery integrated power supply method are provided. One battery box is accommodated in each separate compartment. The battery boxes in each row or column of separate compartments being connected in series and then being connected to a battery management system (BMS) module, forming a plurality of battery paths which are then connected in parallel, before supplying power to the aircraft. The method ensures power supply reliability and achieving the integrated arrangement of the limitation and integration of battery packs and battery management system, avoiding the occurrence of high working current and overheating of wire harness caused by scattered layout of each battery pack in the cabin, and is conducive to installation and maintenance. In addition, a cooling bottom plate is equipped for the power battery to ensure heat dissipation performance.

GLASSY EMBEDDED BATTERY ELECTRODE ASSEMBLIES AND ASSOCIATED BATTERY CELLS AND METHODS INVOLVING SUBZERO AND CRYOGENIC GRINDING OF FINE SULFIDE GLASS PARTICLES, INFILTRATION OF SULFIDE GLASS INTO POROUS CATHODES, AIRBRUSH DEPOSITION OF SULFIDE GLASS AND LASER POLISHING OF SULFIDE GLASS

Resumen de: US2025174665A1

A glassy electroactive prepreg made by generating submicron particles of lithium-ion conducting sulfide glass by providing lithium-ion conducting sulfide glass feedstock material, and subjecting the feedstock material to subzero processing to transform the material into submicron particles can avoid plastic deformation of sulfide glass particles during grinding and produce submicron powders. The prepreg is formed by providing a porous electroactive layer comprising electroactive material, and infiltrating the porous electroactive layer with the submicron particles of lithium-ion conducting sulfide glass. The subzero processing can include cryogenic processing. The prepreg can be used to form glassy embedded electrodes.

BATTERY PACK

Resumen de: US2025174795A1

A battery pack includes: a lower case for accommodating a battery cell; a protective structure, disposed below the lower case, for protecting the battery cell against a load from below; and a sensor for detecting a load input from the protective structure to the lower case. Further, the protective structure includes a share panel forming a lowest layer and an elastic body interposed between the share panel and the lower case, the elastic body is elastically deformed by a load from below and causes a displacement of the share panel with respect to the lower case, and the sensor is disposed in a same layer as the elastic body is disposed between the lower case and the share panel to detect a load input to the lower case in accordance with the displacement of the share panel when the elastic body is elastically deformed.

NEGATIVE ACTIVE MATERIAL, ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS

Resumen de: US2025174667A1

A negative active material, including a silicon-based material and a sheet-shaped carbon-based material, where the sheet-shaped carbon-based material has a porous structure, a length-to-diameter ratio of the sheet-shaped carbon-based material is greater than or equal to 1.5, Dv50 of the sheet-shaped carbon-based material is 0.5 μm to 25 μm, and a mass percentage of the sheet-shaped carbon-based material is greater than or equal to 10% based on a total mass of the negative active material.

NEGATIVE ELECTRODE PLATE, ELECTROCHEMICAL APPARATUS, AND ELECTRONIC APPARATUS

Resumen de: US2025174629A1

A negative electrode active material layer includes a first negative electrode active material layer and a second negative electrode active material layer. The second negative electrode active material layer is located between the current collector and the first negative electrode active material layer. The first negative electrode active material layer includes a first graphite material, and Dv50 of the first graphite material is denoted as Dv150, and 10 μm≤Dv150≤16 μm. The second negative electrode active material layer includes a second graphite material and a silicon-based material, Dv50 of the second graphite material is denoted as Dv250, and 12 μm≤Dv250≤30 μm, and Dv50 of the silicon-based material is denoted as Dv350, and 6 μm≤Dv350≤10 μm.

BATTERY PACK

Resumen de: US2025174813A1

A battery pack includes a plurality of cell stacks, each including a plurality of battery cells arranged in a first direction, the battery cells including vent units on top surfaces thereof, respectively, a housing frame having an opened top and accommodating the cell stacks, a cover frame covering the opened top of the housing frame, and at least one horizontal frame interposed between the cell stacks and the cover frame, each of the at least one horizontal frame being elongated in the first direction, wherein each of the at least one horizontal frame has a recess that is formed to be recessed downward and elongated in the first direction, and the recess has a plurality of first through-holes arranged in the first direction.

MANUFACTURING METHOD OF MOLDED BODY FOR SHEET-LIKE ELECTRODE

Resumen de: US2025174622A1

Provided is a manufacturing method of a molded body for a sheet-like electrode, the manufacturing method including a step A of dispersing and arranging, on a support, a plurality of bulk substances of an electrode material which contains an electrode active material and an electrolytic solution and has a concentration of solid components of 20% by volume to 90% by volume; and a step B of combining the plurality of bulk substances dispersed and arranged on the support by a molding member to form an electrode material film on the support.

SLOT DIE FOR MANUFACTURING RECHAREABLE BATTERY ELECTRODE, RECHARGEABLE BATTERY ELECTRODE, AND MANUFACTURING METHOD USING THE SAME

Resumen de: US2025174624A1

A slot die for manufacturing a rechargeable battery electrode according to an embodiment includes a first block; a second block disposed on the first block; a third block disposed opposite to the second block; and a shim member that is disposed between the second block and the third block and forms a slot outlet in a width direction and a height direction. The first block forms a first cavity that receives an active material slurry supplied between the first block and the second block and forms a connection passage between the first block and the second block in a width direction and the height direction of the slot outlet. The second block forms a second cavity that receives the active material slurry supplied through the connection passage and discharges the received active material slurry through the slot outlet.

CYLINDRICAL LITHIUM-ION BATTERY

Resumen de: US2025174741A1

Disclosed is a cylindrical lithium-ion battery, comprising a battery cell, a protection board, a first elastic conductive member, a second elastic conductive member and a fixing cap. The protection board is installed above the battery cell at intervals, a top surface of the protection board is provided with a metal contact. An upper end of the first elastic conductive member abuts against a bottom surface of the protection board and is electrically connected to a positive electrode of the protection board, and a lower end of the first elastic conductive member abuts against a top end of the battery cell and is electrically connected to a positive electrode of the battery cell. An upper end of the second elastic conductive member abuts against the bottom surface of the protection board and is electrically connected to a negative electrode of the protection board.

Negative Electrode for Lithium Secondary Battery and Method for Manufacturing Same

Resumen de: US2025174660A1

A negative electrode for a lithium secondary battery includes a negative electrode active layer and a negative electrode current collector. The negative electrode active layer includes a center region, an edge region, and a sliding region on the current collector, and has the advantage of exhibiting a high-rate charge and discharge and a high energy density with a small volume change during charge and discharge by having an alignment degree (O.I.) of each carbon-based negative electrode active material contained in the center region, the edge region, and the sliding region satisfying Formula 1 and Formula 2. A method of manufacturing the same is also provided.

CARBONACEOUS MATERIAL

Resumen de: US2025174659A1

The present invention relates to a carbonaceous material having: a ratio of a sulfur element content SXPS determined by an XPS method to a sulfur element content SNDIR determined by an NDIR method (SXPS/SNDIR) of 0.20 or more and 0.78 or less; and a specific surface area determined by a BET method of 40 m2/g or less.

SECONDARY BATTERY AND ELECTRONIC APPARATUS

Resumen de: US2025174731A1

The invention provides a secondary battery and an application thereof. The secondary battery at least includes: a housing; and a wound cell, disposed in the housing and including a negative electrode plate, a positive electrode plate, and a separator. In a state of charge (SOC) of 100%, the wound cell satisfies:0≤L⁢1⁢(1+X⁢1)(L⁢2⁢(1+X⁢2))≤0.0⁢2⁢5⁢5⁢%.L1 represents a thickness of the negative electrode plate under an initial SOC of 0%, X1 represents a longitudinal expansion rate of the negative electrode plate, L2 represents a width of the wound cell, and X2 represents a lateral expansion rate of the wound cell. Through the secondary battery and the application thereof according to the invention, lithium precipitation during the cycle process can be reduced, and the cycle performance of the secondary battery can be facilitated.

MULTI-LAYERED COATING FORMED BY DIFFERENT PROCESSES

Resumen de: US2025174621A1

A method for forming one or more layers of a lithium-ion battery includes a step of sequentially depositing a wet coating and a free-standing material layer onto a moving substrate to form a first bilayer on the substrate. The first bilayer including a wet coating-derived layer and the free-standing material layer. The first bilayer is heat roll pressed to form a second bilayer in which the wet coating-derived layer is at least partially dried and adhered to the free-standing material layer.

Positive Electrode Active Material, and Preparation Method Therefor and Use Thereof

Resumen de: US2025174654A1

Positive electrode active materials and preparation methods therefor, positive electrodes comprising a positive electrode active material, secondary batteries comprising a positive electrode, and electric devices comprising a secondary battery. The general formula of the positive electrode active material comprises A3V2-xMx(P1-yEyO4)3, wherein A represents an alkali metal element; M represents a doping element that substitutes for V; M comprises one or more of transition metal elements and rare earth elements; E represents a doping element that substitutes for P; E comprises one or more of As, Sb, and Bi; and 0≤x≤1, and 0

BRACKET, ELECTRICAL CONNECTION ASSEMBLY, AND BATTERY MODULE

Nº publicación: US2025174740A1 29/05/2025

Solicitante:

EVE ENERGY CO LTD [CN]
Eve Energy Co., Ltd