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THERMAL MANAGEMENT SYSTEM AND CONTROL METHOD THEREOF

Resumen de: US20260074319A1

A thermal management system includes a first liquid pipeline, a second liquid pipeline and a switching valve group, and the switching valve group is connected between the first liquid pipeline and the second liquid pipeline. The switching valve group can be switched between a first working position and a second working position; when the switching valve group is at the first working position, a circulation loop having the first liquid pipeline and a circulation loop having the second liquid pipeline are two circulation loops in which liquid flow circulations do not interfere with each other; and, when the switching valve group is at the second working position, the first liquid pipeline and the second liquid pipeline form a series circulation loop. The thermal management system can meet the working requirements of a device corresponding to a first heat exchanger and a device corresponding to a second heat exchanger.

CHARGE-DISCHARGE CIRCUIT AND ELECTRIC DEVICE

Resumen de: US20260074316A1

A charge-discharge circuit and an electric device. The charge-discharge circuit includes a power supply module, a first drive assembly, a second drive assembly, and a first switch module, where the first drive assembly and the second drive assembly are connected in parallel between a positive terminal and a negative terminal of the power supply module; and a terminal of the first switch module is connected to the first drive assembly, and another terminal of the first switch module is connected to the second drive assembly.

BATTERY AND METHOD FOR MANUFACTURING THE SAME

Resumen de: US20260074329A1

A battery, including a case including a protrusion protruding from an upper surface thereof, the protrusion including an inner step surface and an outer step surface, and an electrode assembly being accommodated in the case, a cap plate including a groove portion on a lower surface thereof corresponding to the protrusion, wherein the protrusion is inserted into the groove portion to couple the cap plate to the case, and a welding portion at a boundary of the case and the cap plate.

ULTRASONIC WELDING APPARATUS AND ULTRASONIC WELDING METHOD

Resumen de: US20260070149A1

An ultrasonic welding method including arranging a pressing force measuring anvil including a pressing force measuring sensor under a horn, moving the horn downward, pressing the pressing force measuring anvil, and measuring a pressing force of the horn using the pressing force measuring sensor, comparing the measured pressing force of the horn with a preset pressing force range and controlling a down stroke of the horn so that the pressing force of the horn is within the preset pressing force range, changing the pressing force measuring anvil with a welding anvil and positioning the welding anvil under the horn after the down stroke of the horn is adjusted, supporting welding target members on the welding anvil, and moving the horn by the adjusted down stroke and ultrasonically welding the welding target members on the welding anvil.

METHOD AND APPARATUS FOR CLEANING PRESSING ROLL

Resumen de: US20260070100A1

A method for automatically cleaning a pressing roll used in the electrode roll-pressing process according to one embodiment of the present disclosure comprises the steps of: determining whether or not the pressing roll is in a non-operative state, and cleaning the pressing roll in a first cleaning mode when the pressing roll is in a non-operative state, wherein the first cleaning mode performs cleaning of the pressing roll in a state in which an electrode pressing process on the pressing roll has stopped.

MICROLAYER COEXTRUSION OF ELECTRICAL END PRODUCTS

Resumen de: US20260070301A1

A method and system for extruding multiple laminated flow streams using microlayer extrusion, and in particular to creating and forming products with electrical properties that are formed from layers and particles with dimensions in the micro to nanometer range.

Apparatus and Method for Molding Pouch

Resumen de: US20260070268A1

An apparatus for molding a pouch, which includes: a transfer device configured to transfer a pouch film; a molding device configured to press a top surface of the pouch film to mold an accommodation part for accommodating an electrode assembly; and an inspection device configured to calculate a depth value of the accommodation part formed in the pouch film to detect defects. The inspection device includes: a distance measuring member configured to measure a first measurement value and a second measurement value, and an inspection member configured to calculate a depth value of the accommodation part by subtracting the first measurement value from the second measurement value, wherein if the calculated depth value is within a set input value range, it is determined as normal, and if the calculated depth value is out of the set input value range, it is determined as defective.

METHOD OF MANUFACTURING ELECTRODE NOTCHING MOLD FOR SECONDARY BATTERY THROUGH GRINDING PROCESSING

Resumen de: US20260070249A1

A method of manufacturing a film notching mold for a secondary battery pouch includes processing each of an upper plate, a lower plate, a plurality of paired upper modules, a plurality of paired lower modules, a rounded press-fit plate, and an interference-fit portion in a polyhedral frame shape in the form of a metal plate; coupling each of the upper plate, the lower plate, the plurality of paired upper modules, the plurality of paired lower modules, the rounded press-fit plate, and the interference-fit portion by interference-fit; and performing linear driving-type pressing by forming a press-fit space.

APPARATUS AND METHOD FOR COATING ELECTRODE PLATE OF SECONDARY BATTERY, AND SLOT DIE USES IN THE APPARATUS AND METHOD

Resumen de: US20260070080A1

The present disclosure relates to an apparatus and method for manufacturing an electrode plate of a secondary battery. In an embodiment a slot die that simultaneously discharges a mixture slurry and an insulating slurry. The slot die includes an insulating slurry discharge portion protruding toward a substrate more than a mixture slurry discharge portion, which enables fine adjust of a thickness of the insulation coated portion on the substrate.

ELECTRICITY STORAGE DEVICE

Resumen de: US20260074298A1

The present disclosure provides a technique for making an electrolytic solution efficiently osmose into an electrode assembly. A herein disclosed electricity storage device includes a case having a liquid injection part, an electrode assembly, a resin film surrounding the electrode assembly, and an electrolytic solution. The case includes a bottom wall, an upper wall, and a first side wall. The liquid injection part is provided at a position closer to the upper wall of the first side wall. The resin film includes a first end part extending from one side in a predetermined direction to cover a part of a bottom part of the electrode assembly, and includes a second end part extending along the predetermined direction from a direction different from the first end part. A part of the second end part is stacked at the bottom wall side of the case with respect to the first end part.

Electrode Assembly, and Battery Cell and Power Source Including the Same

Resumen de: US20260074296A1

An electrode assembly, and a battery cell and a power source including the same are provided. The electrode assembly includes a first electrode plate wound about a winding axis and including a first uncoated portion without a first electrode active material coated thereon, a second electrode plate wound about the winding axis and including a second uncoated portion without a second electrode active material coated thereon, a separator disposed between the first electrode plate and the second electrode plate, and a plurality of segments formed on at least one of the first uncoated portion or the second uncoated portion. The plurality of segments are arranged such that at least one bottom angle is changed in a winding direction.

ELECTRODE PRECURSOR COMPOSITION

Resumen de: US20260074299A1

An electrode precursor composition for an alkali metal ion secondary cell is described. The composition includes a polymer-solvent gel matrix phase and a dispersed phase containing an electrochemically active material. The electrochemically active material has a multimodal particle size distribution having a D150/D250 in the range 2 to 15. The electrode precursor composition can be processed into an electrode for an alkali metal ion secondary cell, for example a lithium ion secondary cell.

Electrode Assembly Comprising Adhesive on Separator Sheet and Apparatus and Method for Manufacturing the Same

Resumen de: US20260074294A1

An apparatus for manufacturing an electrode assembly includes a separator supply unit, table, separator guide, first adhesive supply unit, and pair of tensioners. The separator supply unit is configured for supplying a separator sheet from which a separator is formed. The table is configured for supporting electrodes and sections of the separator sheet. The separator guide is configured for guiding the separator sheet to fold in a particular folding direction. The first adhesive supply unit is configured for applying an adhesive to portions of the separator sheet and the electrodes supported by the table. The pair of tensioners are each configured for pressing an uppermost section of the separator sheet guided by the separator guide against the table or against a placed electrode that directly underlies the uppermost section. The electrode assembly is manufactured by a process using the apparatus.

ELECTRODE ASSEMBLY FOR SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME

Resumen de: US20260074295A1

An electrode assembly for a secondary battery includes a first electrode plate with a first electrode pattern part, the first electrode pattern part including a plurality of patterns, a second electrode plate with a second electrode pattern part, the second electrode being stacked on at least one surface of the first electrode plate, and the second electrode pattern part including a plurality of patterns corresponding to positions and shapes of the plurality of patterns of the first electrode pattern part, and a separator between the first electrode plate and the second electrode plate.

BATTERY ASSEMBLY AND BATTERY SYSTEM INCLUDING THE SAME

Resumen de: US20260074405A1

A battery assembly including a case having an accommodation space formed therein; a plurality of cells positioned in the accommodation space and aligned in one direction; a plurality of sensors configured to measure at least one of voltage or temperature of at least some of the cells; a fire extinguishing pipe connected to a fire extinguishing device, at least a part of the fire extinguishing pipe being positioned in the accommodation space; a heating member positioned adjacent to the fire extinguishing pipe; and a controller configured to control a power source to apply current to the heating member based on information associated with the cells received from the sensors.

SECONDARY BATTERY WITH SHORTENED ELECTROLYTE IMPREGNATION PATH AND MANUFACTURING METHOD THEREOF

Resumen de: US20260074403A1

A secondary battery, including an electrode assembly including a plurality of electrode plates, a battery can accommodating the electrode assembly, the battery can having a first surface corresponding to a side portion of the electrode assembly and a second surface corresponding to a surface of one of the plurality of electrode plates of the electrode assembly, and at least one injection hole in the second surface of the battery can.

ELECTRODE OUTPUT COMPONENT, COVER PLATE ASSEMBLY, AND BATTERY CELL

Resumen de: US20260074386A1

An electrode output component, a cover plate assembly, and a battery cell are provided. The electrode output component includes a pole and a terminal. An outer peripheral surface of the pole is provided with an abutting portion. The terminal includes a first through hole. The first through hole is sleeved on one end of the pole and abuts against the abutting portion along an axial direction of the pole. A contact portion between the pole and the terminal are engaged with each other.

Battery Cell, Battery Pack Including Battery Cell, and Vehicle Including Battery Pack

Resumen de: US20260074389A1

Disclosed is a battery cell, which includes an electrode assembly having a cell body and an electrode tab extending from the cell body; a cell case having an accommodation portion configured to accommodate the electrode assembly and a circumferential portion extending outward from the accommodation portion; an electrode lead electrically coupled to the electrode tab; and a conductive frame disposed on a first surface of the circumferential portion and electrically coupled to the electrode lead through the first surface of the circumferential portion.

DOUBLE-SEALED BATTERY TOP COVER ASSEMBLY

Resumen de: US20260074404A1

A double-sealed battery top cover assembly, which includes an upper cover, a terminal post, a sealing ring, an upper insulating part, a riveting block, and a sealant. The bottom of the terminal post is provided with a mounting plate, the upper insulating part is arranged between the upper cover and the riveting block, the upper insulating part is provided with a flow guiding groove communicated with a clearance space, the riveting block is provided with a filling port communicated with the flow guiding groove, and the sealant and the sealing ring form a double seal for the clearance space. Through a double seal function of the sealing ring and the sealant, electrolyte leakage in a short-circuit test is avoided.

COMMUNICATION METHOD FOR BATTERY MANAGEMENT SYSTEM, AND BATTERY MANAGEMENT SYSTEM USING THE SAME

Resumen de: US20260074306A1

A battery management system includes: a storage unit that stores first hopping history data for a plurality of channels associated with a first battery management module among a plurality of battery management modules, a model generation unit that generates a first probability distribution model associated with the first battery management module based on the first hopping history data, and a communication unit that allocates a first channel among the plurality of channels to the first battery management module using a frequency hopping method, sets first communication properties associated with the first channel based on the first probability distribution model, and performs wireless communication with the first battery management module through the first channel using the first communication properties.

BATTERY CELL REPLACEMENT DETECTION APPARATUS AND METHOD

Resumen de: US20260074308A1

A battery cell replacement detection apparatus includes a memory, and a processor configured to obtain cell data related to charging of a battery from a battery management system (BMS), to compare the cell data with data stored in the memory, and to determine whether a battery cell has been replaced.

HYDROGEN SULFIDE DETECTION DEVICE

Resumen de: US20260074309A1

A hydrogen sulfide detection device includes a wire that electrically connects a first node and a second node, and a monitoring circuit that monitors a voltage between the first node and the second node. The wire includes a plurality of metal exposed portions in which a metal that reacts with the hydrogen sulfide to corrode is exposed.

BATTERY SYSTEM

Resumen de: US20260074307A1

A battery ECU calculates a gas generation amount generated in a case, and calculates a gas permeation amount corresponding to an amount of leakage of the gas out of the case. The battery ECU calculates an internal gas amount that is a gas amount inside the battery, by subtracting the gas permeation amount from the gas generation amount. Further, the battery ECU calculates an electrolyte solution permeation amount corresponding to an amount of leakage of an electrolyte solution out of the case, and calculates an internal void volume that is a void volume inside the battery, by adding the electrolyte solution permeation amount and an initial void volume. Then, the battery ECU calculates a battery internal pressure that is a pressure in the case, based on the internal gas amount and the internal void volume.

SYSTEMS AND METHODS FOR MINIMIZING AND PREVENTING DENDRITE FORMATION IN ELECTROCHEMICAL CELLS

Resumen de: US20260074302A1

Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms. In some aspects, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, the cathode having a first thickness at a proximal end of the cathode and a second thickness at a distal end of the cathode, the second thickness greater than the first thickness, a first separator disposed on the anode, a second separator disposed on the cathode, an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material and having a proximal end and a distal end, and a power source electrically connected to the proximal end of the cathode and the proximal end of the interlayer, the power source configured to maintain a voltage difference between the cathode and the interlayer below a threshold value.

APPARATUS AND METHOD FOR DRYING BATTERY ELECTRODES

Nº publicación: US20260070081A1 12/03/2026

Solicitante:

SK ON CO LTD [KR]
SK ON CO., LTD

Resumen de: US20260070081A1

An apparatus for drying a battery electrode includes a drying portion for drying a coated electrode sheet; an auxiliary heater portion disposed in the drying portion and configured to dry the coated electrode sheet; and a control unit configured to control turning-off driving of the auxiliary heater portion in response that a coating stop is initiated for a foil connection portion of an electrode sheet to be coated, in which a prior foil and a subsequent foil are connected to each other, and to control redriving of the auxiliary heater portion in response that the foil connection portion passes through the drying portion and a coating restart is initiated.