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ALKALI METAL PF6 SALT STABILIZATION IN CARBONATE SOLUTIONS

Resumen de: US2025309344A1

Disclosed herein is a stabilized salt-in-solvent mixture comprising a salt, a carbonate solvent, and an organosilicon (OS) compound, wherein the OS compound suppresses degradation reactions within the salt-in-solvent mixture. Also disclosed herein is a method of mitigating degradation of a salt/carbonate solution comprising adding to the salt/carbonate solution an amount of an OS compound that suppresses degradation reactions within the salt/carbonate solution. This OS compound may be added to the carbonate solvent before or after dissolution of the salt to form the salt-in-solvent mixture.

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.

STACKING APPARATUS FOR ALTERNATELY STACKING A CONTINUOUS RIBBON-LIKE SEPARATOR AND FOIL SHEETS AND METHOD FOR STACKING A CONTINUOUS RIBBON-LIKE SEPARATOR AND FOIL SHEETS

Resumen de: US2025304403A1

A stacking apparatus for alternately stacking a continuous ribbon-like separator and foil sheets. The apparatus comprises a stacking station to receive foil sheets, first and second transfer devices, a feeder device and a displacement device fed by the feeder device. The first and second transfer devices are movable between a pickup and release position for respective transfer of first and second foil sheets. The ribbon-like separator being fed by the feeder device. The displacement device comprises an accompanying device movable above the stacking station between first and second end positions when the second transfer device moves to the pick-up position, and between the second and first end positions when the first transfer device moves to the pick-up position. The accompanying device comprises at least one surface to contact the ribbon-like separator. Motorized members rotate the surface of the accompanying device while it moves between the first and second end positions.

ELECTRODE SHEET AND SPLICING METHOD OF ELECTRODE SHEET

Resumen de: US2025304390A1

Disclosed are an electrode sheet and a splicing method of an electrode sheet. The electrode sheet includes a first and second electrode sheet bands and an adhesive tape. The first electrode sheet band has a first end in a length direction of the first electrode sheet band. The second electrode sheet band has a second end along the length direction of the second electrode sheet band same as the length direction of the first electrode sheet band. The adhesive tape is attached to surfaces of the first and second ends. The adhesive tape includes a base film and a glue layer. The base film includes a coating area and a blank area arranged around the coating area. The glue layer is coated on at least part of the coating area. The coating area is bonded to the surfaces of the first and second ends respectively through the glue layer.

ELECTRICAL VEHICLE

Resumen de: US2025303929A1

An electrical vehicle (1) comprising a battery system (3) configured to generate electrical energy to operate the electrical vehicle, a control system (5) configured to control various systems of the electrical vehicle, a temperature monitoring system (7) configured to monitor at least one temperature of said battery system (3), and to generate a temperature signal (9) comprising said at least one temperature, wherein said battery system is provided with a thermal energy arrangement (11) arranged to supply thermal energy to keep the battery system (3) within an optimal operating temperature interval. The thermal energy arrangement (11) comprises a mechanical vapor recompression, MVR, unit (13) and an absorption cooler unit (15). A working liquid, preferably having a freezing temperature less than −40° C. is applied. A control system (5) is configured to receive the temperature signal (9), and to control the thermal energy arrangement (11) in dependence of the at least one temperature, to supply said generated thermal energy to the battery system (3) via a cooling line (35) and a heating line (39) to keep the temperature of said battery system (3) within said predetermined temperature interval.

BATTERY MANAGEMENT SYSTEM FOR BATTERIES

Resumen de: US2025303927A1

A battery management system for batteries, such as, but not limited to, electric vehicle battery packs and cells, lithium iron phosphate batteries, lead acid batteries, gel batteries, and absorbed gel mat batteries, in engine start applications is disclosed. The battery management system is configured to control the charge and charging of each cell individually. The battery management system may be configured to control the charge of a battery which may consist of a plurality of cells, such as, but not limited to, lithium iron phosphate cells, and in at least one embodiment, the battery may consist of, but is not limited to being formed from, four lithium iron phosphate cells connected in series and a battery management system to ensure proper charge and safe operation.

LITHIUM METAL SECONDARY BATTERY AND AGING METHOD OF THE SAME

Resumen de: US2025309332A1

A lithium metal secondary battery according to an embodiment of the present invention includes an electrode laminate having a positive electrode layer, a separator, and a negative electrode layer laminated in this order and an electrolytic solution, the negative electrode layer is a lithium-containing metal layer, and a plurality of protrusions are disposed on a surface of the separator on a side of the negative electrode layer or on a surface of the negative electrode layer on a side of the separator.

COMPOSITE POLYMER ELECTROLYTE AND METHOD OF MAKING THE SAME

Resumen de: US2025309336A1

Composite polymer electrolytes that include a polymer material, an anionic salt, high entropy oxide nanoparticles, and surface activated nanoparticles. The high entropy oxide nanoparticles and the surface activated nanoparticles are homogeneously dispersed in a polymer matrix formed by the polymer material and the anionic salt.

METHOD FOR MANUFACTURING SOLID-STATE BATTERY

Resumen de: US2025309329A1

Provided is a method for manufacturing a solid-state battery having preferable battery performance with less occurrence of abnormal electrocrystallization. The method is a method for manufacturing a solid-state battery having an electrode laminate configured such that a negative electrode layer, an intermediate layer, a solid electrolyte layer, and a positive electrode layer are laminated in this order. The solid electrolyte layer includes a first solid electrolyte layer disposed on the negative electrode layer side, a second solid electrolyte layer disposed adjacent to the first solid electrolyte layer, and a third solid electrolyte layer disposed on the positive electrode layer side. The method includes Step 1, Step 2A, Step 3, and Step 4A.

CELL UNLOADING APPARATUS AND CELL WINDING DEVICE

Resumen de: US2025309324A1

The disclosure provides a cell winding device. The device includes a cell unloading apparatus, comprising: a frame, a first clamping assembly, a second clamping assembly, a third clamping assembly, a fourth clamping assembly and a driving assembly. The first clamping assembly and the second clamping assembly are arranged on the frame at an interval along a first direction and are movable respectively to clamp or release the cell. The third clamping assembly and the fourth clamping assembly are arranged on the frame at an interval along a second direction, and are movable respectively to clamp or release the cell.

ALL-SOLID-STATE BATTERY AND METHOD OF MANUFACTURING ALL-SOLID-STATE BATTERY

Resumen de: US2025309328A1

To provide an all-solid-state battery having a multilayered solid electrolyte layer structure, capable of improving battery performance by enhancing interface bondability. In an all-solid-state battery, a positive electrode layer and a negative electrode layer are stacked with solid electrolyte layers interposed therebetween. The all-solid-state battery includes: a first solid electrolyte layer pressure-bonded to the positive electrode layer; a third solid electrolyte layer pressure-bonded to the negative electrode layer; and a second solid electrolyte layer that bonds the first solid electrolyte layer and the third solid electrolyte layer. The particle diameter of the solid electrolyte particles constituting the second solid electrolyte layer is smaller than the particle diameter of the solid electrolyte particles constituting the first solid electrolyte layer and the third solid electrolyte layer, respectively.

BATTERY MONITORING SYSTEM FOR A LIFT DEVICE

Resumen de: US2025303920A1

A lift device includes multiple electrical components and a battery monitoring system. The battery monitoring system includes multiple batteries and a controller. The multiple batteries are configured to power the multiple electrical components. The controller is configured to obtain sensor data from the batteries. The controller is also configured to determine a state of charge of the batteries for open circuit conditions based on the sensor data. The controller is configured to determine a state of charge of the batteries for load conditions based on the sensor data. The controller is configured to determine a state of charge of the batteries for charging conditions based on the sensor data. The controller determines an overall state of charge of the batteries based on the state of charge for open circuit conditions, the state of charge of the batteries for load conditions, and the state of charge for charging conditions.

CONTROL DEVICE, CONTROL METHOD, AND STORAGE MEDIUM

Resumen de: US2025303918A1

A control device includes a processor. The processor is configured to acquire charge-discharge-rate information regarding a charge-discharge rate during charge or discharge of a lithium metal battery including a negative electrode containing lithium, and determine charge-discharge content of the lithium metal battery based on the charge-discharge-rate information.

CONTROL DEVICE

Resumen de: US2025303923A1

A server includes a processor that updates a degradation coefficient of a power storage device, and a communication unit. In a case where an estimated value of a capacity of the power storage device is increased by update of the degradation coefficient, the communication unit performs a notification process for notifying a user that the degradation coefficient is updated, and the processor updates the degradation coefficient. In a case where the estimated value is decreased by update of the degradation coefficient, the communication unit does not perform the notification process, and the processor updates the degradation coefficient by gradually changing the degradation coefficient.

CONTROL APPARATUS FOR SECONDARY BATTERY

Resumen de: US2025303925A1

To restrain deterioration of a secondary battery, a control apparatus for a secondary battery includes: a state sensor that includes sensors configured to detect at least one of a state of charge (SOC) and a temperature of the secondary battery; and a controller that determines, based on a detection signal of the sensors, whether or not a first condition is fulfilled that is fulfilled when at least one of the SOC and the temperature is continuously not less than a predetermined value, and controls a charge/discharge current of the secondary battery based on the determination result, and the controller determines, in disconnection of electric power supply to a driving source, whether or not the first condition is fulfilled, and restricts, when it is determined that the first condition is fulfilled, a magnitude of the charge/discharge current more than in the case where the first condition is not fulfilled.

BATTERY SWAP APPARATUS

Resumen de: US2025303914A1

The battery swap apparatus includes a battery swap processing unit that executes a battery swap process for swapping a battery pack (battery) mounted on an electrified vehicle, and an inspection unit that inspects a status of a battery swap portion of electrified vehicle prior to the battery swap process. The position (first position) at which the battery swap process is executed by the battery swap processing unit is different from the position (second position) at which the inspection is executed by the inspection unit.

Structural Battery for an Electric Vehicle

Resumen de: US2025303843A1

A bottom structure for an electric vehicle including at least a first and second beam-shaped battery modules extending in a length direction. Each module is formed by a number interconnected cells and has two longitudinal sides, two transverse sides and a top side covered by a cover plate. The modules are mutually interconnected along their longitudinal sides via an adhesive.

NONAQUEOUS ELECTROLYTE SOLUTION, LITHIUM-ION BATTERY, AND ELECTRONIC DEVICE

Resumen de: US2025309333A1

A nonaqueous electrolyte solution includes a nonaqueous solvent and a lithium salt. The nonaqueous electrolyte solution comprises a specific amount of ethylene carbonate, propylene carbonate, 1,2,3-tris(2-cyanoethoxy)propane, and a boron-containing lithium salt additive. An aggregate mass percentage of the ethylene carbonate and the 1,2,3-tris(2-cyanoethoxy)propane in the nonaqueous electrolyte solution is set to fall within a specific range. An aggregate mass percentage of the propylene carbonate and the boron-containing lithium salt additive is set to fall within a specific range. The nonaqueous electrolyte solution put into use not only alleviates the volume resistance of the positive electrode and the lithium plating on the negative electrode of the lithium-ion battery, but also enables the battery to well exert high-temperature cycling performance at 65° C. or above and low-temperature output performance at −20° C. or below in a balanced way.

INSPECTION DURING THE MANUFACTURE OF MODULES OR PRELIMINARY STAGES OF MODULES

Resumen de: US2025309320A1

An inspection in the manufacture of modules or pre-stages of modules, comprising providing a separated anode/cathode layer at a pick-up location; conveying a stacking apparatus to the pick-up location; picking up the anode/cathode layer from the pick-up location by the stacking apparatus; detecting the position and/or orientation of the anode/cathode layer; transporting the anode/cathode layer to a stacking location by the stacking apparatus; aligning the stacking apparatus with the transported anode/cathode layer relative to the stacking location; and stacking the transported anode/cathode layer at the stacking location.

MODULE PRESSURIZATION DEVICE AND PRESSURIZATION METHOD THEREFOR

Resumen de: US2025309322A1

A module pressurization device includes a conveying line, a pressurization apparatus, and a control apparatus. The conveying line passes through a pressurization station and is configured to convey a battery module. The pressurization apparatus is arranged corresponding to the pressurization station and includes a jacking and supporting mechanism and a pressurization mechanism which are opposite in a first direction. The jacking and supporting mechanism is provided with a plurality of jacking and supporting portions configured to move in the first direction, arranged in a second direction, and configured to jack and support the heat dissipation plate. The pressurization mechanism is configured to compress the battery module. The control apparatus is electrically connected to the jacking and supporting mechanism and the pressurization mechanism so as to control the jacking and supporting mechanism and the pressurization mechanism to act.

METHOD FOR FORMING ELECTROCHEMICAL CELLS OF ELECTRICAL BATTERIES

Resumen de: US2025309323A1

A method for forming electrochemical cells of electrical batteries. The method comprises preparing a coil comprising a winding of a first separator sheet, a coil comprising a winding of a first electrode sheet, a coil comprising a winding of a second separator sheet and a coil comprising a winding of a second electrode sheet. The sheets are fed towards a movable conveyor by unwinding them from respective coils. A plurality of multi-layer strips is formed, each one comprising a first layer of said first separator sheet, a second layer of said first electrode sheet overlapped to said first layer, a third layer of said second separator sheet overlapped to said second layer and a fourth layer of said second electrode sheet overlapped to said third layer. Each multi-layer strip is fed to a respective winding device by said conveyor and each multi-layer strip is wound onto the respective winding device.

BATTERY MANUFACTURING PROCESS TO REDUCE SWELLING

Resumen de: US2025309318A1

A battery is charged and discharged during a battery manufacturing formation process according to a current and voltage profile. The duration of the charging at a high voltage level is maintained for an extended time period, thereby saturating a solid electrolyte interface (SEI) during the formation process and reducing a swelling of the battery.

VEHICLE CONTROL METHOD AND VEHICLE CONTROL DEVICE

Nº publicación: US2025303842A1 02/10/2025

Solicitante:

PANASONIC AUTOMOTIVE SYSTEMS CO LTD [JP]
PANASONIC AUTOMOTIVE SYSTEMS CO., LTD

Resumen de: US2025303842A1

A vehicle includes a first heat exchange plate having a first refrigerant layer and a first coolant layer, and a second heat exchange plate having a second refrigerant layer and a second coolant layer. The first and second exchange plates are respectively capable of exchanging heat with first and second battery packs. When a first temperature of the first battery pack and the second battery pack is lower than a first threshold temperature, a vehicle control device causes a refrigerant to circulate through the first refrigerant layer at a first flow rate, and causes the refrigerant to circulate through the second refrigerant layer at a second flow rate. When a third temperature of the first battery pack is higher than a second threshold temperature, the vehicle control device charges the first battery pack and causes the coolant to circulate through the first and second coolant layers in this order.