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ASSEMBLY FOR PRESSURIZATION OF ALL-SOLID-STATE BATTERIES

Resumen de: US20260074272A1

Disclosed is an assembly comprising at least one cell comprising an exterior surface; a bag with an interior surface and an exterior surface, wherein the bag surrounds the at least one cell; an inert gas filling a space between the interior surface of the bag and the exterior surface of the at least one cell; and a casing surrounding the bag, wherein the bag exerts a compressive pressure, via the inert gas, on the at least one cell.

SECONDARY BATTERY

Resumen de: US20260074274A1

A secondary battery includes: an electrode assembly; a case accommodating the electrode assembly; and a cap assembly coupled to the case to seal the case, and the case includes a bottom portion, long side portions bent and extended from the bottom portion, a first short side portion bent and extended from the bottom portion, and second short side portions bent and extended from the long side portions, and the first short side portion and the second short side portions are connected to one another to define a short side portion.

Method for Manufacturing Electrode Assembly and Electrode Assembly

Resumen de: US20260074268A1

A method for manufacturing an electrode assembly includes preparing a cell stack and forming a bonding part. In the preparing, a first electrode and a second electrode having a width greater than that of the first electrode are alternately stacked with a separator therebetween. In the forming, a bonding part is folded toward the cell stack by bonding the plurality of separators protruding outward further than the first electrode and the second electrode to each other. An electrode assembly is also provided.

PRESSING APPARATUS FOR SECONDARY BATTERY

Resumen de: US20260074269A1

Provided is a pressing apparatus for a secondary battery for improving the efficiency of a secondary battery manufacturing process and the performance or structural stability of the secondary battery. The pressing apparatus for the secondary battery includes a case part for arranging a plurality of secondary batteries along one direction, an end plate configured to be movable inside the case part in the one direction and apply pressure to the secondary batteries in the one direction, a pulley part connected to one side of the end plate, and a wire part configured to be wound around the pulley part and to transmit power in the one direction to the pulley part to move the end plate along the one direction.

DOWN-PRESSING MECHANISM, PRESSURIZING APPARATUS, AND BATTERY PRODUCTION DEVICE

Resumen de: US20260074271A1

This application discloses a down-pressing mechanism, a pressurizing apparatus, and a battery production device. The down-pressing mechanism includes a pitch adjustment unit and multiple down-pressing members, where the pitch adjustment unit includes a base plate and multiple pitch adjustment members arranged sequentially along a first direction on the base plate. At least one pitch adjustment member is capable of moving along the first direction. Each down-pressing member is connected to a corresponding pitch adjustment member. The down-pressing members are configured to press a product.

SECONDARY BATTERY PRESSING METHOD AND PRESSING DEVICE SUPPORTING SAME

Resumen de: US20260074261A1

A pressing apparatus according to embodiments of the present disclosure may include a driver, a cylinder configured to move in response to driving of the driver, and a regulator configured to control an internal pressure of the cylinder, wherein the cylinder moves upwardly by a first distance in response to driving of the driver, and a portion of the cylinder is configured to move upwardly by a second distance in response to the internal pressure of the cylinder controlled by the regulator to provide a pressing force to at least a portion of a secondary battery.

TECHNIQUES FOR CHARGING BATTERIES IN PARALLEL

Resumen de: US20260074534A1

A charging apparatus is provided according to some embodiments. The charging apparatus includes (1) charging circuitry configured to connect to a plurality of battery packs in parallel and (2) processing circuitry configured to control the charging circuitry by: (a) obtaining a voltage reading from each of the plurality of battery packs; (b) initially setting a charging voltage of a charger to a lowest voltage reading obtained from any of the plurality of battery packs; (c) while applying the charging voltage to the plurality of battery packs, obtaining a current reading from each of the plurality of battery packs that is charging; and (d) in response to the obtained current reading from a battery pack being below a minimum threshold current, increasing the charging voltage by a voltage step value. A similar method and computer program product are also provided.

MARINE STARTER BATTERY MANAGEMENT SYSTEM AND METHOD FOR MONITORING LOW-TEMPERATURE CHARGING AND DISCHARGING THEREOF

Resumen de: US20260074530A1

The present disclosure provides a marine starter battery management system and a method for monitoring its low-temperature charging and discharging. The system comprises a battery management unit, a heating circuit, a high-current charge/discharge drive circuit, a passive balancing circuit, a voltage spike suppression circuit, a soft-start circuit, and a processing unit. The processing unit is electrically connected to these components. Based on battery state parameters, the processing unit controls in real-time the operating states and sequences of the heating circuit, the high-current drive circuit, the passive balancing circuit, the voltage spike suppression circuit, and the soft-start circuit. This intelligent, coordinated control of the various functional modules improves the safety, reliability, and performance of the marine starter battery, particularly in demanding low-temperature environments.

PROGRAMMABLE BATTERY PACK

Resumen de: US20260074532A1

A programmable battery pack including a switch arrangement module having at least one rechargeable battery with and at least one single pole single throw (SPST) switch, a system power supply having at least one linear regulator and at least one single pole single throw (SPST) switch, at least one controller module having a micro-controller executing a pre-programmed firmware, and an external power supply.

MANUFACTURING METHOD OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: US20260074311A1

The manufacturing method of the nonaqueous electrolyte secondary battery is provided, which includes a construction step for constructing a secondary battery whose volume is equal to or more than at least 500 cm3, an initial electrically charging step for electrically charging the secondary battery until a SOC becomes 20% to 39%, a high temperature aging step for heating up and holding the secondary battery in a high temperature range, a room temperature aging step for cooling down the secondary battery being in the high temperature range and then holding the secondary battery in a room temperature range, and an inspecting resistance step for calculating an internal resistance of the secondary battery while the secondary battery is maintained in the room temperature range.

POWER GENERATION SYSTEM

Resumen de: US20260074554A1

A power generation system, including: a container having an interior volume; a fuel cell compartment, which is a portion of the interior volume that is defined by one or more fuel-cell-partitions in the container; a fuel cell located within the fuel cell compartment; a battery compartment, which is a portion of the interior volume that is defined by one or more battery-partitions; a battery located within the battery compartment; a control compartment, which is a portion of the interior volume that is: separated from the fuel cell compartment by the one or more fuel-cell-partitions; separated from the battery compartment by the one or more battery-partitions; an outflow vent; and a fan configured to reduce the air pressure in the fuel cell compartment such that air is drawn through the battery compartment and the fuel cell compartment and exits the container through the outflow vent.

SECONDARY BATTERY TESTING DEVICE AND PENETRATING PIN ALIGNMENT MECHANISM FOR SHORT-CIRCUIT TEST OF SECONDARY BATTERY

Resumen de: US20260072099A1

A secondary battery testing device including: a support bulkhead configured to contact one side surface of a battery cell for an internal short-circuit test; a penetration bulkhead opposite to the support bulkhead and configured to contact an opposite side surface of the battery cell, the penetration bulkhead having an access opening extending therethrough toward the support bulkhead; a bulkhead connector connecting the support bulkhead and the penetration bulkhead to each other and maintaining a gap between the support bulkhead and the penetration bulkhead; an alignment mechanism mounted on the penetration bulkhead and having a nail guide corresponding to the access opening and having a guide passage; and a nail configured to penetrate the battery cell through the guide passage to cause an electrical short-circuit of the battery cell.

COOLING FLOOR MEMBER AND METHOD FOR MANUFACTURING COOLING FLOOR MEMBER

Resumen de: US20260071831A1

A cooling floor member (100) is a cooling floor member (100) for cooling a battery cell, including a metal underfloor material (101), a flat plate-like metal floorboard (102) which is arranged face to the metal underfloor material (101), and which has a surface opposite to the metal underfloor material (101) that comes into contact with the battery cell, a partition member (105) inserted between the metal underfloor material (101) and the flat plate-like metal floorboard (102) without being joined thereto, and a joint (130) in which the outer peripheral edge of the metal underfloor material (101) and the outer peripheral edge of the flat plate-like metal floorboard (102) are directly and continuously joined, wherein a region surrounded by the metal underfloor material (101), the flat plate-like metal floorboard (102), and the partition member (105) is a cooling liquid flow path (104) through which a cooling liquid flows.

SQUARE BATTERY APPEARANCE DEFECT DETECTION METHOD AND APPARATUS, STORAGE MEDIUM, AND ELECTRONIC DEVICE

Resumen de: EP4707786A1

The present invention belongs to the technical field of computers, and provides a square battery appearance defect detection method and apparatus, a storage medium, and an electronic device. The method comprises: moving a battery to be detected to a first position, and calling a first camera module to photograph a first part of said battery to form a front image and a rear image of said battery; moving said battery to a second position, and calling a second camera module to photograph a second part of said battery to form a left side image and a right side image of said battery; moving said battery to a third position, and calling a third camera module to photograph a third part of said battery to form a bottom image and a top image of said battery; and performing appearance defect identification on said battery according to the front image, the rear image, the left side image, the right side image, the bottom image and the top image. The present invention can improve the overall defect identification efficiency for square batteries.

LOSS-FREE METHOD FOR PRODUCING CATHODE ACTIVE MATERIAL WITHOUT THE FORMATION OF WASTEWATER

Resumen de: CN121194946A

The present invention relates to a resource-saving method for producing an alkali metal-containing positive electrode active material by using condensed water from a precursor without using additional purified water. The invention also relates to the purification of alkali metal-containing wash water produced during the production of positive electrode active materials. According to the invention, the alkali metal precursor recovered in the production process is returned to the production process.

BATTERY AND ELECTRIC DEVICE

Resumen de: EP4708543A1

The present application relates to the field of batteries, and provides a battery (1) and an electrical apparatus. The battery (1) includes a thermal management component (40) and an electrical box (30). The electrical box (30) includes a case (31) and a thermally conductive structure (32). The case (31) is configured to accommodate a heat-generating component (33). The thermally conductive structure (32) is sealingly connected to the case (31), and the thermally conductive structure (32) connects the heat-generating component (33) and the thermal management component (40). The electrical box (30) of the battery (1) facilitates heat exchange between the heat-generating component (33) and the thermal management component (40) via the thermally conductive structure (32) to meet the heat dissipation requirements of the electrical box (30). Additionally, by sealingly connecting the thermally conductive structure (32) to the case (31), connection gaps are sealed to prevent liquid infiltration into the interior of the case (31), thereby enhancing the sealing performance of the electrical box (30) and reducing the risk of high-voltage short-circuit arcing in the electrical box (30) due to water infiltration.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4708478A1

The present application provides a battery cell, a battery, and an electrical apparatus, and belongs to the field of battery technologies. The battery cell includes a shell, a pressure relief component, and a reinforcement member. The shell has a wall portion, and the wall portion is provided with a pressure relief hole. The pressure relief component is arranged in the pressure relief hole and covers the pressure relief hole. The reinforcement member is arranged in the pressure relief hole and does not exceed the pressure relief hole in a thickness direction of the wall portion. The reinforcement member is connected to a hole wall surface of the pressure relief hole. The reinforcement member and the pressure relief component are arranged in the thickness direction of the wall portion to reinforce the strength of the wall portion at the pressure relief hole. This battery cell is capable of improving, by the reinforcement member, the structural strength of a region of the wall portion where the pressure relief hole is arranged, so as to alleviate the phenomenon that the pressure relief hole deforms when the wall portion is subjected to internal and external impact forces, thereby being capable of playing a protective role for the pressure relief component, so as to reduce the impact to the pressure relief component when the wall portion is subjected to the internal and external impact forces, which is conducive to alleviating the deformation of or damage to the pressure relief

POSITIVE ELECTRODE SHEET AND PREPARATION METHOD THEREFOR, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4708402A1

The present application discloses a positive electrode plate and a preparation method therefor, a positive electrode plate, a battery and an electrical apparatus. The positive electrode plate comprises a positive electrode current collector, and at least one side of the positive electrode plate away from the positive electrode current collector comprises a polymer and an organic solvent, wherein the organic solvent is located in the polymer, and the electrochemical oxidation window of the organic solvent is greater than 4 V

HOUSING STACK-TYPE ENERGY STORAGE APPARATUS

Resumen de: EP4708490A1

The present disclosure is a housing stacking energy storage system. In the present disclosure, a first housing 10 and a second housing 20 having a predetermined size are stacked, and a rack 30 is installed in a first inner space 11 of the first housing 10 and a second inner space 21 of the second housing 20 to mount a plurality of battery packs 32. The first inner space 11 and the second inner space 21 communicate with each other to form one space, and a control unit 46, a fire extinguishing system 47 and a spray system 48 are installed therein. According to the present disclosure, it is possible to firmly install the energy storage system having a relatively large capacity in a specific installation area.

NEGATIVE ELECTRODE, PREPARATION METHOD THEREFOR, BATTERY CELL COMPRISING SAME, BATTERY, AND ELECTRICAL APPARATUS

Resumen de: EP4708401A1

This application provides a negative electrode and a preparation method therefor, a battery cell containing the same, a battery, and an electric apparatus, where the negative electrode includes a negative electrode current collector and a coating disposed on at least one surface of the negative electrode current collector, the coating includes a flexible carbon material, the flexible carbon material includes micropores with a pore diameter less than or equal to 0.8 nm, a pore volume of the micropores with a pore diameter less than or equal to 0.8 nm is denoted as Vmic, a pore volume of the flexible carbon material is denoted as Vtotal, both in units of cm<3>/g, and Vmic:Vtotal≥65:100.

ELECTRONIC DEVICE FOR CHARGING BATTERY BY USING DIRECT CHARGER AND OPERATING METHOD THEREOF

Resumen de: EP4708612A1

An electronic device according to an embodiment may comprise: a battery; a direct charger including a first capacitor, a second capacitor, and a plurality of switches; and a control circuit. The control circuit according to an embodiment may: identify a first mode in which a voltage input to the direct charger is converted at a 4:1 ratio and power is supplied to the battery; and control the plurality of switches at a first phase of providing second power having a second voltage which is 1/4 times a first voltage to the battery while charging a first capacitor and a second capacitor in series on the basis of first power of the first voltage received from the outside, a second phase of providing second power to the battery while charging the second capacitor with the power with which the first capacitor is charged, and a third phase of providing the second power to the battery on the basis of the power with which the second capacitor is charged, wherein a voltage which is twice the second voltage is applied to the first capacitor and the same voltage as the second voltage is applied to the second capacitor so that an output voltage is converted at a 4:1 ratio by only using two flying capacitors.

CONTROL METHOD FOR AEROSOL GENERATING DEVICE AND AEROSOL GENERATING DEVICE

Resumen de: EP4706428A1

The present application provides a control method for an aerosol generating device and an aerosol generating device. The aerosol generating device comprises a heater for heating an aerosol generating product to generate an aerosol. The method comprises: receiving a starting request signal, the starting request signal being a signal for requesting to start a heater to heat the aerosol generating product; determining that an aerosol generating device is in a warm starting state; determining a starting parameter according to cooling information and heating information, the starting information comprising at least one of a target starting moment of the heater and a target starting temperature of the heater, wherein the cooling information is information of changes of the temperature of the heater along with time after the heater is turned off, and the heating information is information of changes of the temperature of the heater along with time when the aerosol generating device is started from a cold starting state; and starting the heater according to the starting parameter. The present application ensures a relatively good vaping taste.

COHESIVELY BONDED, MICROPOROUS MULTILAYER FILMS

Resumen de: CN121079204A

Disclosed herein is a multilayer microporous polyolefin film in which at least one layer is highly filled with inorganic particles such that the film exhibits good in-plane dimensional stability (i.e., low shrinkage) at temperatures above and below the melting point of the polymer matrix. The second extruded polyolefin layer is selected such that the porosity thereof and the total permeability of the multilayer film will decrease above the melting point of the polymer matrix. The layers of the multilayer films are cohesively bonded, and such films can be used as separators to improve manufacturability, performance, and safety of energy storage devices, such as lithium ion batteries.

LITHIUM ION BATTERY ANODE AND METHOD TO MAKE THEM

Resumen de: WO2024233315A2

Anodes having a laminate comprised of a lithium metal having adhered thereto a layer comprised of a thermoset polymer may be formed by contacting a lithium foil with an addition monomer to form an uncured layer and polymerizing the addition monomer forming a layer of a thermoset polymer adhered to the lithium metal foil or by contacting a metal foil other than lithium with an addition monomer to form an uncured layer, polymerizing the addition monomer forming a layer of a thermoset polymer adhered to the metal foil to form a lithium free metal anode and electrochemically introducing lithium ions to the lithium free metal anode to form the lithium metal laminate anode.

METHOD FOR PRODUCING ORGANIC LITHIUM SALT, COMPOSITION CONTAINING SAID ORGANIC LITHIUM SALT, AND POLYMER

Nº publicación: EP4707309A1 11/03/2026

Solicitante:

SUMITOMO CHEMICAL CO [JP]
Sumitomo Chemical Company, Limited

Resumen de: EP4707309A1

The present disclosure provides a method for producing a compound (A1) represented by the following formula (A1), the method including a step of reacting a compound (D) represented by the following formula (D) with a compound (E1) represented by the following formula (E1) in the presence of at least two types of lithium salts.(In formula (A1), R¹ is a hydrogen atom or a monovalent substituent, R³ is a hydrogen atom or a monovalent substituent, Y is a halogen atom or a monovalent organic group having 1 to 20 carbon atoms, and X and R² satisfy the following (1) or (2):(1) X is a divalent organic group having 1 to 20 carbon atoms, and R² is a monovalent organic group.(2) R² and X are taken together to form a trivalent group.)