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METHOD FOR MANUFACTURING OXIDE-BASE SOLID ELECTROLYTE OF LITHIUM BATTERY

Resumen de: US2025309337A1

A method for manufacturing an oxide-base solid electrolyte of a lithium battery includes the steps of: placing a zirconium-contained compound and a lanthanum-contained compound into a first ball mill for grinding and then performing an oil bath assisted vacuum concentration and a first stage sintering operation to obtain a zirconium lanthanum compound; placing the zirconium lanthanum compound, a lithium-contained compound, a gallium-contained compound, an aluminum-contained compound and a further lanthanum-contained compound into a second ball mill for grinding and then performing another oil bath assisted vacuum concentration and a second stage sintering operation to obtain a plurality of modified LLZO agglomerates; and placing the modified LLZO agglomerates into a jet mill and a wet grinding mill for grinding and then performing a water bath assisted vacuum concentration to obtain a plurality of modified LLZO powders.

ALL-SOLID-STATE BATTERY

Resumen de: US2025309340A1

The present disclosure provides an all-solid-state battery capable of suppressing damage to the end of the positive electrode under compressive stress due to compressive input, while ensuring sufficient insulation between the positive electrode and the negative electrode, mitigating stress concentration at the end of the electrode stack in the stacking direction due to the expansion and contraction of the negative electrode during charge and discharge cycles of the all-solid-state battery, suppressing abnormal lithium metal deposition caused by localized battery reactions, and preventing capacity degradation of the all-solid-state battery. An all-solid-state battery according to an embodiment for solving the above objectives includes: an electrode stack including a plurality of electrode bodies stacked, in which a resin coating capable of following the expansion and contraction of the electrode stack is provided at the end of the electrode stack in the stacking direction.

Solid-State Aluminum-Ion Battery with Carbonized Luffa Cathode

Resumen de: US2025309335A1

A method and apparatus for storing electricity using a rechargeable, membrane-free, electrochemical cell with axially placed coiled aluminum wire anode, carbonized luffa sponge cathode, and a solid electrolyte. The invention teaches the use of common ultra-low-cost material components, and a simple cell construction method.

BATTERY CELL, BATTERY, ELECTRIC DEVICE, AND ASSEMBLY METHOD FOR BATTERY CELL

Resumen de: US2025309503A1

A battery cell, a battery, an electric device, and an assembly method for a battery cell are provided. The battery cell comprises: a case assembly, which comprises a case and first post terminals, wherein the case comprises a case body and a case cover, the case body having an opening, the case cover covering the opening, and the case body being provided with the first post terminals; and a battery cell assembly, which comprises an active substance coating portion and electrically conductive portions, wherein the active substance coating portion is accommodated in the case body, and the electrically conductive portions are electrically connected to the active substance coating portion and the first post terminals. The present application can reduce the probability of cracking occurring at a weld joint between the case body and the case cover during use of the battery, thereby improving the reliability of the battery cell.

FIRE SUPPRESSION FOR ENERGY STORAGE DEVICES

Resumen de: US2025309510A1

An energy storage device container can suppress fires and can comprise a compartment configured to receive an energy storage device and a chamber configured to hold a fire suppressive agent, the chamber being positioned above the compartment. A barrier can be positioned between the compartment and the chamber and can physically separate the fire suppressive agent from the energy storage device to inhibit the fire suppressive agent from entering the compartment when the barrier is in a first physical state. The barrier can change from the first physical state to a second physical state in response to thermal energy having a threshold temperature to allow the fire suppressive agent to enter the compartment to contact the energy storage device.

ELECTROCHEMICAL APPARATUS, ELECTRIC DEVICE, AND METHOD FOR MANUFACTURING SUCH ELECTROCHEMICAL APPARATUS

Resumen de: US2025309496A1

An electrochemical apparatus includes a soft package film, an electrode assembly, a first tab, and a first protective member. The electrode assembly is accommodated within the soft package film, and the electrode assembly includes an electrode body and a plurality of first extension portions. One end of each of the plurality of first extension portions is connected to the electrode body, the plurality of first extension portions are sequentially stacked along a first direction, the other ends of the plurality of first extension portions are stacked on the first protective member, and the other ends of the plurality of first extension portions and the first protective member are welded to form a first adapting portion. One end of the first tab is welded to the first adapting portion, and another end of the first tab extends out of the soft package film.

BATTERY PACK

Resumen de: US2025309463A1

The present disclosure is a battery pack, including a lower housing, a battery cell stack, a first foaming adhesive, and multiple isolation structures; the battery cell stack is disposed in the lower housing, including multiple stacked pouch cells, the bottom side of the battery cell stack is connected and fixed to the baseplate of the lower housing, a first partial area between the tab side of the battery cell stack and the lower housing forms an adhesive filling area, and a second partial area forms an exhaust area; a first foaming adhesive is filled in the adhesive filling area; multiple isolation structures are arranged in the exhaust area along the stacking direction of the pouch cells and in one-to-one correspondence with the multiple pouch cells, the isolation structures are adaptable for melting to form exhaust channels connected to the exhaust portions of the corresponding pouch cells when the corresponding pouch cells exhaust smoke.

BATTERY AND LASER WELDING SYSTEM

Resumen de: US2025309420A1

A battery includes a housing with an opening, and a cover plate. The cover plate has an end face side facing the opening and an outer periphery connected to an opening periphery of the housing. A part of a peripheral section of the outer periphery has a first lateral welding zone. A part of a peripheral section of the opening periphery has a second lateral welding zone. At least one of the first lateral welding zone and the second lateral welding zone is formed with a weld seam shape control structure. The first lateral welding zone and the second lateral welding zone are welded together via a weld seam. The weld seam shape control structure is configured to control shaping of the weld seam so that a maximum lateral outer dimension of the weld seam does not exceed a maximum lateral outer dimension of a corresponding area before the welding.

SECONDARY BATTERY PACKAGING FILM, SECONDARY BATTERY, AND ELECTRIC APPARATUS

Resumen de: US2025309415A1

A secondary battery packaging film includes a composite layer, a metal layer, and a protective layer. The metal layer is disposed on a surface of the composite layer, and the protective layer is disposed on a side of the metal layer facing away from the composite layer. The composite layer includes a first insulation layer and a second insulation layer, along a thickness direction of the composite layer, the second insulation layer is located between the metal layer and the first insulation layer. A melting point of the second insulation layer is greater than or equal to 250° C., and a thickness of the second insulation layer is greater than or equal to 2 μm. A melting point of the first insulation layer is less than or equal to 200° C.

END COVER ASSEMBLY, ENERGY-STORAGE APPARATUS, AND ELECTRICITY-CONSUMPTION DEVICE

Resumen de: US2025309421A1

An end cover assembly, an energy-storage apparatus, and an electricity-consumption device are provided. The end cover assembly includes an end cover, an upper plastic member, and a terminal post. The end cover has a 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 protrusion portion protruding from the first surface surrounds the mounting hole and has an end surface. The upper plastic member includes an upper-plastic-member body and a lug. The lug protrudes from an edge of a step surface of the upper-plastic-member body away from a center of the upper plastic member. The upper-plastic-member body and the lug cooperatively define a terminal-post through-hole for the terminal post to pass through. A surface of the flange positioned facing towards the terminal-post body abuts against the step surface.

CYLINDRICAL BATTERY

Resumen de: US2025309422A1

A cylindrical battery comprises an outer case can, an electrode body that is accommodated in the outer case can, and a sealing body that covers an opening portion of the outer case can. The outer case can comprises: a bottom plate portion; a cylinder portion that is connected to the bottom plate portion via an annular corner portion that is positioned outward in the radial direction, and extends in the axial direction; and a rolled-back portion that is connected to an end portion of the cylinder portion that is on the opposite side from the corner portion in the axial direction. The sealing body comprises a rolled-back portion that has an end portion on the outside in the radial direction, the end portion being secured to the rolled-back portion.

BATTERY DEVICE

Resumen de: US2025309409A1

A battery device has a housing, a core structure arranged in the housing, a first interior space in the housing configured for a cooling fluid to flow through, a second interior space in the housing, a phase change material and at least one battery cell. The core structure separates the first interior space from the second interior space. The core structure has a wall which is configured substantially in the form of a triple periodic minimum surface. The phase change material is arranged in the second interior space. The at least one battery cell is arranged in the first interior space or the second interior space.

Cylindrical Battery with Expansion Tape

Resumen de: US2025309509A1

A cylindrical battery with expansion tape including 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 includes 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.

ELECTRONIC ATOMIZATION DEVICE

Resumen de: US2025302111A1

An electronic atomization device, including an electronic atomizer and a battery assembly, the battery assembly supplying power for the electronic atomizer, the battery assembly includes a housing, a mounting groove is arranged on the housing, the electronic atomizer is partially arranged in the mounting groove and is electrically connected with the battery assembly, the battery assembly further comprises a microphone cavity arranged in the housing, and a microphone is arranged in the microphone cavity; a microphone air outlet hole is arranged at a groove bottom of the mounting groove, the microphone air outlet hole is in communication with the microphone cavity; the battery assembly further includes an air guiding structure, a through hole is arranged in the air guiding structure, an air in the microphone cavity enters the electronic atomizer through the through hole of the air guiding structure.

METHOD AND SYSTEMS FOR COATED CATHODE MATERIALS AND USE OF COATED CATHODE MATERIALS

Resumen de: US2025309256A1

A coated cathode material for lithium-ion batteries is disclosed. Methods and systems are further provided for applying a coating to an active cathode material for use in a lithium-ion battery. In one example, the coated cathode material may include a high-nickel content active cathode material, such as lithium nickel manganese cobalt oxide or lithium nickel aluminum cobalt oxide, coated with a coating including one or more high energy density active materials, such as lithium vanadium fluorophosphate and/or a lithium iron manganese phosphate compound. In some examples, the high-nickel content active cathode material may include greater than or equal to 60% nickel content.

COMPOSITION, ANODE AND BATTERY

Resumen de: US2025309250A1

A composition includes a component particle and a dispersed particle, and the component particle and the dispersed particle are respectively an active material. The component particle includes a niobium-titanium complex oxide, and the niobium-titanium complex oxide includes a niobium element and a titanium element. The dispersed particle includes a structural element oxide, the structural element oxide includes a structural element, and the structural element is selected at least two from a group consisting of a cobalt, a copper, a tin, a silicon, an iron, a manganese and a nickel.

POSITIVE ELECTRODE ACTIVE MATERIAL, ELECTROCHEMICAL APPARATUS, AND ELECTRONIC DEVICE

Resumen de: US2025309247A1

A positive electrode active material includes a conductive base material and an active substance distributed at the conductive base material. The active substance has a core-shell structure including a core layer material and a shell layer material. The conductive base material includes a carbon material, the core layer material includes a phosphate-based sodium salt material, and the shell layer material includes a metal oxide.

NEGATIVE ELECTRODE COMPOSITE MATERIAL AND SOLID-STATE BATTERY

Resumen de: US2025309249A1

To blend a specific ionic liquid in the negative electrode composite material. Specifically, the negative electrode composite material includes a negative electrode active material, a solid electrolyte, and an ionic liquid, wherein the negative electrode active material is a silicon-based negative electrode active material, the solid electrolyte is a sulfide-based solid electrolyte, and the ionic liquid includes an anion having a donor number of 9 or less as determined from a half-wave potential of a noble metal.

POSITIVE ELECTRODE PLATE AND LITHIUM-ION BATTERY USING POSITIVE ELECTRODE PLATE

Resumen de: US2025309246A1

The present disclosure provides a positive electrode plate and a lithium-ion battery using the positive electrode plate. The positive electrode plate includes a current collector and a positive electrode active material layer. The positive electrode active material layer includes a first active material layer and a second active material layer, both of which are provided in a composite manner. The first active material includes a lithium manganese oxide spinel material and a ternary material, and the second active material layer includes a phosphate material; single crystal sizes of the lithium manganese oxide spinel material and the ternary material are D1 and D2, respectively, which meet a condition D2≥3.2*D1.

BUSBAR CLAMPING APPARATUS AND BUSBAR CLAMPING METHOD

Resumen de: US2025309451A1

The busbar clamping apparatus includes a plurality of actuation pairs arranged side by side in the X direction, each of the actuation pairs including a first actuation part and a second actuation part. By changing the pitch between the first actuation part and the second actuation part from a predetermined pre-clamping pitch to a smaller clamping pitch, each actuation pair thereby clamps the busbars in the X direction. The busbar clamping apparatus further includes a pitch modification device. The pitch modification device modifies the pre-clamping pitch of a predetermined actuation pair among the plurality of actuation pairs.

BATTERY CASE

Resumen de: US2025309450A1

A battery case includes a case body and a loading assembly arranged at an exterior of the case body. The case body includes a frame, the loading assembly includes a first loading plate, the first loading plate is arranged with a first connection portion, the first connection portion is disposed at a lower side of the frame; the first connection portion is fixed, by resistance-welding, to a bottom surface of the frame; the frame defines a cavity therein; a top surface of the frame defines a first welding hole communicated with the cavity; the first welding hole leaves a space for a resistance welding needle; a sealing adhesive layer is arranged around a welding position where the first connection portion is welded to the frame.

COVER STRUCTURE AND BATTERY PACK

Resumen de: US2025309452A1

A cover structure and a battery pack employing the cover structure are provided. The battery pack further includes a plurality of cells and a box. The cover structure includes a substrate and an exhaust portion. The substrate is configured to cover the box. The substrate and the box together form an accommodating cavity to accommodate the plurality of cells and foam adhesive arranged along a plurality of adhesive injection tracks preset in the accommodating cavity. The exhaust portion is provided on a middle portion of the substrate. The exhaust portion is provided with a plurality of exhaust holes. An area between two adjacent adhesive injection tracks corresponds to at least one of the exhaust holes.

SYSTEM FOR SUPPLYING POWER TO A PORTABLE BATTERY USING AT LEAST ONE SOLAR PANEL

Resumen de: US2025309447A1

A system for supplying power to a portable battery pack including a battery enclosed by a wearable and replaceable pouch or skin using at least one solar panel is disclosed, wherein the pouch or skin can be provided in different colors and/or patterns. Further, the pouch or skin can be MOLLE-compatible. The battery comprises a battery element housed between a battery cover and a back plate, wherein the battery element, battery cover, and back plate have a slight curvature or contour. Further, the battery comprises flexible leads.

MODULAR BATTERY SYSTEM

Resumen de: US2025309449A1

The present disclosure relates to a battery module, a collocated battery module, a battery system and a battery pack. The battery module comprises at least two battery cells arranged to be coupled in series; wherein the battery module is configured to be removably connectable to an adjacent first corresponding battery module by a first electrical connection. The battery module is further configured to be removably connectable to the adjacent first corresponding battery module and further to an adjacent second corresponding battery module by at least one second electrical connection such that each battery cell comprised in the battery module is further arranged to be removably connectable to at least one battery cell comprised in the adjacent first and second battery modules by the at least one second electrical connection, wherein the first electrical connection is a parallel electrical connection and is different from the at least one second electrical connection.

POWER STORAGE DEVICE

Nº publicación: US2025309399A1 02/10/2025

Solicitante:

TOYOTA JIDOSHA KK [JP]
TOYOTA JIDOSHA KABUSHIKI KAISHA

Resumen de: US2025309399A1

In a power storage device, a first heat transfer member is adjacent to a first cell on a second direction side opposite to a first direction side of the first cell. A second heat transfer member is adjacent to a second cell on a second direction side of the second cell. A heat insulating member is made of a material having a thermal conductivity lower than that of each of the first heat transfer member and the second heat transfer member. The heat insulating member is located on a first direction side of the battery cell group. A cooling portion is in contact with the first heat transfer member and the second heat transfer member. In a third direction, a thermal resistance of the first heat transfer member is lower than a thermal resistance of the second heat transfer member.