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BATTERY PACK

Resumen de: US2025286209A1

A battery pack according to the disclosure is mounted on a vehicle, and includes: when the battery pack is mounted under a vehicle cabin of the vehicle, a plurality of battery cells stacked in the front-rear direction thereof; a case accommodating the battery cells; a cooler having a tube through which a cooling medium is able to flow; and a share panel disposed downward of the case. Each of the battery cells has a cell opening and a cell valve. The cell opening is provided in a bottom surface of the battery cell. The cell valve is installed at the cell opening. The case has a case opening communicating with the cell opening. The case opening is provided in a bottom surface of the case. The cooler is installed on the periphery of the case opening. A smoke exhaust path is formed between the case and the share panel.

SOLID-STATE SECONDARY BATTERY

Resumen de: US2025286257A1

A solid-state secondary battery according to one embodiment of the present invention includes an electrode laminate that includes a positive electrode layer, a negative electrode layer, and a solid electrolyte layer placed between the positive electrode layer and the negative electrode layer, in which at least one of the negative electrode layer or the solid electrolyte layer includes a projection projecting from the positive electrode layer in a plan view, an insulating frame body placed on an outer periphery of the positive electrode layer, and an elastic body placed between the insulating frame body and the projection.

SECONDARY BATTERY

Resumen de: US2025286252A1

Disclosed is a secondary battery capable of blocking supply of current when pressure in the secondary battery increases. The secondary battery includes a cylindrical can accommodating an electrode assembly, an integrated current collector located in the cylindrical can and electrically connected to the electrode assembly, a rivet unit disposed in contact with the integrated current collector to receive current and extending to the outside of the cylindrical can, and a terminal cover located outside the cylindrical can and configured to receive current through the rivet unit.

BATTERY PACK WITH REVERSIBLE CONNECTOR AND ZERO VOLT STABILITY

Resumen de: US2025286254A1

A battery pack may include a plurality of battery cells and a reversible memory metal-based connector that transitions between a deformed state to an undeformed state in response to a temperature trigger. For example, the reversible memory metal-based connector may be a clamp, a coil, a tubing, and/or the like. The reversible memory metal-based connector in the deformed state may physically connect two or more of the plurality of battery cells such that an electrical current is able to flow between the two or more battery cells. The reversible memory-metal based connector in the undeformed state is physically disconnected from the two or more battery cells to disrupt a flow of current between the two or more battery cells.

PROTECTION CIRCUIT MODULE AND BATTERY MODULE COMPRISING THE SAME

Resumen de: US2025286253A1

Disclosed are a protection circuit module and a battery module capable of detecting a trigger cell in which heat propagation occurs within the battery module, even when heat propagation occurs in a battery cell that does not have a temperature sensor. The protection circuit module includes: a substrate; a wire disposed on the substrate to form an opening in at least a portion of the wire and the wire including a first metal; a solder including a second metal having a melting point lower than a melting point of the first metal and the second metal being inserted into at least a portion of the opening to join end of the wire separated by the opening; and a cover forming at least one hole and covering at least a portion of the solder.

Anti-Theft System for Lithium Batteries in Golf Carts

Resumen de: US2025286251A1

The invention provides an anti-theft system for lithium batteries in golf carts, comprising an integrated hardware module that selectively enables or disables power output from the battery. A mobile application on a user device communicates with the anti-theft hardware through secure encrypted protocols. When activated, the system interrupts the power path between battery cells and output terminals, rendering the battery inoperable during unauthorized use attempts. The system incorporates tamper detection sensors that monitor physical interference and automatically alert users via the mobile application. Authentication mechanisms include biometric verification, passwords, and personal identification numbers to ensure only authorized users can control the functionality. Additional features include geographic boundary detection that automatically activates protection when the user device moves beyond a predetermined distance from the battery, real-time status monitoring, and comprehensive event logging for security auditing. The system provides effective protection against theft while maintaining user convenience.

ELECTROLYTE SYSTEMS INCLUDING CHALCOGENIDES AND COMPOUND CONTAINING ELECTRON WITHDRAWING GROUP, AND ELECTROCHEMICAL CELL INCLUDING THE SAME

Resumen de: US2025286126A1

Myriad problems with state of the art lithium based batteries, particularly electrolyte systems thereof, including but not limited to polysulfide shuttling, formation of lithium dendrites and dead lithium during stripping and plating, thermal runaway, volumetric expansion, and strict requirements for electrolyte composition, are well documented in the art and remain major obstacles to realizing the unsurpassed potential for lithium-based batteries as ideal energy storage solutions. The inventive concepts presented herein address said challenges from a multi-pronged approach, revolutionizing the electrolyte system from different approaches to produce synergistic benefits, both within the individual approaches and particularly in combination. The inventive concepts improve electrolyte systems with respect to solvents, electron withdrawing compounds, lithium ion-transporting compounds, performance enhancing additives and chalcogenides. These developments provide benefits including: improved charge/discharge capacity, Coulombic efficiency, cycle life, sulfur optimization, oxidative stability, etc. while reducing polysulfide shuttling and lithium dendrite formation, among other benefits.

ELECTROLYTE COMPOSITION FOR OPERATING LI-ION BATTERY CELLS AT HIGH TEMPERATURE

Resumen de: US2025286114A1

A high temperature rechargeable lithium-ion battery featuring a nonflammable electrolyte composed of a thermally and electrochemically stable ionic liquid, a lithium conducting salt, and a cathode film forming additive. The battery includes a cathode and an anode and is capable of operating at temperatures up to 100° C. and beyond. The ionic liquid may include a phosphonium ionic liquid, and the lithium conducting salt can be selected from various compounds such as lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) and others. Additionally, the cathode film forming additive may comprise lithium difluoro(oxalato)borate (LiDFOB). The cathode may be composed of LiNixMnyCOzO2, and the anode may include Li4Ti5O12 (LTO). The battery is also operable at temperatures up to 125° C.

ENERGY STORAGE SYSTEM

Resumen de: US2025286198A1

The present application provides an energy storage system, the energy storage system includes a box and an energy storage device. The energy storage device is arranged in the box. The energy storage device includes N battery clusters arranged along a first direction. Each of the battery clusters includes M battery packs arranged and connected in a second direction perpendicular to the first direction, wherein 4≤N≤6, and 5≤M≤8. The energy storage system is capable of reducing the number of internal components and improving the space utilizing rate of box, effectively reduces manufacturing hours, and reduces cost of system manufacturing.

SECONDARY BATTERY

Resumen de: US2025286179A1

Disclosed is a secondary battery capable of reducing and/or eliminating an external terminal structure, thereby reducing the number of parts and production costs thereof. The secondary battery includes an electrode assembly including a first electrode plate and a second electrode plate, a first case mounted in a shape surrounding at least one surface of the electrode assembly and electrically connected to the first electrode plate, a second case mounted in a shape surrounding at least the opposite surface of the electrode assembly and electrically connected to the second electrode plate, and an insulating gasket located between the first case and the second case and made of an insulative material to block electrical connection between the first case and the second case.

SECONDARY BATTERY AND BATTERY PACK

Resumen de: US2025286255A1

A secondary battery is provided and includes an electrode wound body includes a first end face and a second end face. The first end face faces a positive electrode current collector plate in a height direction. The second end face faces a negative electrode current collector plate in the height direction. A positive electrode includes a positive electrode current collector covered region and a positive electrode current collector exposed region. The positive electrode current collector covered region is a region in which a positive electrode current collector is covered with a positive electrode active material layer. The positive electrode current collector exposed region is a region in which the positive electrode current collector is exposed without being covered with the positive electrode active material layer. All or a part of the positive electrode current collector exposed region forms the first end face and is coupled to the positive electrode current collector plate. A negative electrode includes a negative electrode current collector covered region and a negative electrode current collector exposed region. The negative electrode current collector covered region is a region in which a negative electrode current collector is covered with a negative electrode active material layer. The negative electrode current collector exposed region is a region in which the negative electrode current collector is exposed without being covered with the negative electrode active mat

BATTERY CELL, BATTERY, AND POWER CONSUMING DEVICE

Resumen de: US2025286250A1

A battery cell, a battery, and a power consuming device are provided. The battery cell includes: an electrode assembly; an electrode terminal, electrically connected to the electrode assembly; a housing, configured to accommodate the electrode assembly, where the housing includes a wall portion and a fixing structure, and the fixing structure is fixedly arranged on the wall portion and configured to fix the electrode terminal; an insulating member, arranged between the fixing structure and the electrode terminal; and an insulating protection member, at least partially covering an outer surface of the fixing structure, where the insulating protection member includes an insertion portion, and at least a part of the insertion portion is inserted between the fixing structure and the insulating member.

BATTERY MODULE

Resumen de: US2025286248A1

A battery module includes a plurality of battery cells with protruding terminal parts that include a first electrode terminal and a second electrode terminal. A frame part accommodates the plurality of battery cells, and busbars are electrically connected to the terminal parts of the plurality of battery cells. Each of the busbars is formed with insertion holes into which the terminal parts are inserted.

SECONDARY BATTERY

Resumen de: US2025286249A1

A secondary battery configured to block a supply of current in response to a pressure within the secondary battery increasing. A secondary battery includes a cylindrical can accommodating an electrode assembly, a positive electrode current collector plate electrically connected to the electrode assembly and inside the cylindrical can, an inner terminal electrically connected to the positive electrode current collector plate and having a connection hole, a variable connection part fixed to the cylindrical can in contact with the inner terminal and spaced apart from the inner terminal to block a flow of current in response to an internal pressure of the cylindrical can increasing, a terminal cover electrically connected to the variable connection part and outside the cylindrical can, and a spacer between the variable connection part and the terminal cover and configured to define an inner space for movement of the variable connection part.

END PLATE FOR BATERY FRAME AND BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME

Resumen de: US2025286190A1

An end plate for a battery frame, including: a flat plate having insulating properties, and including: a first surface to receive an external force; a second surface spaced from the first surface by a thickness in a first direction; and a pair of accommodation guides recessed from opposite peripheral portions toward a center in a second direction crossing the first direction; an external force absorber at least partially buried in the accommodation guides to absorb the external force applied to the peripheral portions, and uniformly adjust a distribution of a stress in the flat plate with respect to the external force in the second direction; and a fixing member on the second surface at each of the opposite peripheral portions to correspond to the external force absorber, and to be fixed to the outside.

NONAQUEOUS ELECTROLYTE SOLUTION, LITHIUM SECONDARY BATTERY CONTAINING SAME, AND ELECTRICAL DEVICE

Resumen de: US2025286138A1

A nonaqueous electrolyte solution is described. The nonaqueous electrolyte solution includes at least one additive represented by general formula I and Na and/or K ions. The nonaqueous electrolyte solution is configured to prepare a lithium secondary battery, and can improve a cycle life of the lithium secondary battery at relatively high temperature, reduce a volume expansion rate of the lithium secondary battery stored at high temperature for a long time, and in turn, improve a capacity retention rate of the lithium secondary battery stored at relatively high temperature for a long time. A lithium secondary battery containing the nonaqueous electrolyte solution and an electrical device containing the lithium secondary battery are described.

RECHARGEABLE LITHIUM BATTERIES

Resumen de: US2025286136A1

Provided are a rechargeable lithium battery including a positive electrode, a negative electrode, a separator, and an electrolyte solution, wherein the positive electrode includes a positive electrode active material including a layered lithium nickel-manganese-based composite oxide, the electrolyte solution includes a non-aqueous organic solvent, a lithium salt, and an additive, the additive including a first compound represented by Chemical Formula 1 and a second compound represented by Chemical Formula 2.

All-Solid-State Aluminum-Ion Battery

Resumen de: US2025286116A1

A method and apparatus for storing electricity using a rechargeable electrochemical cell with axially placed coiled aluminum wire anode, peripherally bunched carbon graphite rods as the cathode, and a solid electrolyte. The invention teaches the use of common ultra-low-cost material components, and a simple cell construction method.

SERVO POWERED CELL PULLER

Resumen de: US2025286100A1

A powered battery cell puller system designed to assist in the removal of individual cells from a battery is disclosed. In one embodiment, the powered battery cell puller system is equipped with an electrically powered servo motor actuated jack screw or a pneumatically or hydraulically powered cylinder, and an end effector that couples to an accessible portion of an individual cell. The end effector can include an electromagnet that when energized attaches to the cell or a double half nut that mechanically connects to studs of the cell while maintaining electrical isolation of the studs to prevent shorting the cell. The resulting strong, predictable vertical movement is advantageous for removing cells from a battery with less deflection, torque stress or damage. Initially developed to aid in removal of cells from batteries, its design versatility extends to various other applications.

BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Resumen de: US2025286206A1

The battery cell includes a shell, the shell has a wall portion, the wall portion includes a weak portion, and the weak portion is configured to be destroyed when the battery cell releases internal pressure. An outer surface of the wall portion has a center point. A maximum distance between a projection of the weak portion on the outer surface of the wall portion and the center point is a, the minimum radial dimension of the outer surface of the wall portion is A, and a and A satisfy: a≤0.4A. By setting a≤0.4A, the weak portion is arranged at a region, with a relatively low stiffness, of the wall portion. When the battery cell releases the internal pressure, the region undergoes a large deformation under the action of gas, and therefore the weak portion arranged at the region is easily damaged.

EXPLOSION-PROOF VENTING VALVE DEVICE

Resumen de: US2025286205A1

An explosion-proof venting valve for a battery pack includes a protective cover, a cover seat engaged with the protective cover, and a membrane being water-impermeable and gas-permeable, the membrane being disposed under the protective cover. The explosion-proof venting valve further includes a valve body configured to be connected with a housing of the battery pack, a self-locking mechanism disposed on the cover seat, the protective cover, the cover seat, the membrane and the self-locking mechanism forming a cover assembly defining a venting passage, and a filter element housed in the valve body, the filter element and the valve body defining a valve passage.

CYLINDRICAL SECONDARY BATTERY

Resumen de: US2025286204A1

Disclosed is a cylindrical secondary battery capable of preventing a cap plate from rupturing before a notch ruptures by dispersing processing stress applied to the cap plate, thereby improving safety thereof. The cylindrical secondary battery may include an electrode assembly including a first electrode plate and a second electrode plate, a cylindrical can accommodating the electrode assembly and including an open end, and a cap plate coupled to the open end of the can and including a notch formed therein. The cap plate may further include an auxiliary groove formed therein so as to be spaced apart from the notch.

BATTERY MANAGEMENT SYSTEM AND BATTERY PACK

Resumen de: US2025286199A1

Provided are a battery management system and a battery pack. The battery pack includes a battery management system. The battery management system includes a first circuit board, a second circuit board, a copper bar and a fastening assembly. The first circuit board and the second circuit board are arranged at intervals and are fixed within a box body. The copper bar is located between the first circuit board and the second circuit board. The fastening assembly includes an insulating member and a first fastener. The copper bar is disposed to be attached to the first circuit board. A first end of the insulating member is connected to the second circuit board, and a second end of the insulating member supports the copper bar. The first fastener is fastenably connected to the insulating member and abuts against a side of the first circuit board away from the second circuit board

BATTERY PACK

Resumen de: US2025286203A1

A battery pack according to the present disclosure is to be mounted on a vehicle, and includes, in a state in which the battery pack is mounted on a vehicle cabin lower side of the vehicle: a plurality of battery cells stacked in a front-rear direction of the vehicle; and a case that accommodates the battery cells. Each of the battery cells includes a cell opening portion and a cell valve. The cell opening portion is provided in a bottom surface. The cell valve is provided in the cell opening portion. The case includes a case opening portion communicating with the cell opening portion. The cell opening portion includes a first side and a second side that faces the first side. The cell valve includes a first door and a second door. The first door is provided on the first side. The second door is provided on the second side.

GARNET MATERIALS FOR LI SECONDARY BATTERIES AND METHODS OF MAKING AND USING GARNET MATERIALS

Nº publicación: US2025286124A1 11/09/2025

Solicitante:

QUANTUMSCAPE BATTERY INC [US]
QuantumScape Battery, Inc

Resumen de: US2025286124A1

Set forth herein are garnet material compositions, e.g., lithium-stuffed garnets and lithium-stuffed garnets doped with alumina, which are suitable for use as electrolytes and catholytes in solid state battery applications. Also set forth herein are lithium-stuffed garnet thin films having fine grains therein. Disclosed herein are novel and inventive methods of making and using lithium-stuffed garnets as catholytes, electrolytes and/or anolytes for all solid state lithium rechargeable batteries. Also disclosed herein are novel electrochemical devices which incorporate these garnet catholytes, electrolytes and/or anolytes. Also set forth herein are methods for preparing novel structures, including dense thin (<50 um) free standing membranes of an ionically conducting material for use as a catholyte, electrolyte, and, or, anolyte, in an electrochemical device, a battery component (positive or negative electrode materials), or a complete solid state electrochemical energy storage device. Also, the methods set forth herein disclose novel sintering techniques, e.g., for heating and/or field assisted (FAST) sintering, for solid state energy storage devices and the components thereof.