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CHILLER OPERATION SYSTEM FOR ESS BATTERY AND METHOD OF OPERATING SAME

Resumen de: US2025349925A1

Proposed are a chiller operation system for an ESS battery and a method of operating the same. The system includes an ESS battery, a battery control unit configured to control charging and discharging of the ESS battery, a chiller unit configured to cool the ESS battery according to a cooling control signal during the charging and discharging of the ESS battery, and a cooling control unit configured to perform heat management by providing the cooling control signal during the charging and discharging of the ESS battery. The cooling control unit is configured to communicate with the battery control unit to receive a cooling start signal, and provide the cooling control signal to the chiller unit when at least one of the cooling start signal or a preset chiller temperature condition is satisfied.

BATTERY CELL, BATTERY, AND POWER CONSUMING DEVICE

Resumen de: US2025349912A1

A battery cell includes a housing, an electrode terminal, an electrode assembly, an insulating member, and a liquid absorbing member, where the housing includes a first wall; the electrode terminal is arranged on the first wall; the electrode assembly includes a body and a tab extending out from the body, and the tab is electrically connected to the electrode terminal; the insulating member is arranged between the first wall and the electrode assembly and configured to isolate the first wall from the electrode assembly; and the liquid absorbing member is located between the body and the insulating member and configured to absorb an electrolyte solution.

ELECTRODE ASSEMBLY AND BATTERY

Resumen de: US2025349907A1

An electrode assembly formed by winding a first electrode plate, a separator and a second electrode plate. The first electrode plate comprises a first current collector and a first active material layer arranged on a surface of the first current collector. A winding terminating end of the first electrode plate is positioned on an outer side of a winding terminating end of the second electrode plate facing away from a winding core. The first active material layer on the winding terminating end of the first electrode plate covers one surface of the first current collector facing toward the second electrode plate. The electrode assembly further comprises a first adhesive member arranged on an outer surface of the electrode assembly. The electrode assembly takes the winding terminating end of the first electrode plate as the tail end. The application further provides a battery having the same.

Non-Aqueous Electrolyte, and Lithium Secondary Battery Comprising the Same

Resumen de: US2025349898A1

The present invention relates to a non-aqueous electrolyte comprising a lithium salt; an organic solvent; and a compound represented by Chemical Formula 1, wherein the invention can control moisture in the lithium secondary battery in which the non-aqueous electrolyte is used, suppress by-product formation according to moisture control, and improve the durability of the solid electrolyte layer, thereby improving the durability thereof,wherein L1 and L2 are each independently a single bond or an alkylene group having 1 to 5 carbon atoms, and R1 is hydrogen or an alkyl group having 1 to 5 carbon atoms.

Modified Current Collector for Secondary Battery

Resumen de: US2025349864A1

Provided herein is a modified current collector for a secondary battery, comprising a substrate and a conductive layer applied on one side or both sides of the substrate, wherein the conductive layer comprises a conductive material and binder material, wherein the binder material comprises a copolymer. Also provided herein is an electrode for a secondary battery, comprising the modified current collector and an electrode layer, wherein the electrode layer is located on the surface of the conductive layer(s). Within an electrode comprising the modified current collector disclosed herein, the presence of the conductive layer inhibits corrosion of the substrate and reduces interfacial resistance between the electrode layer and the substrate. Consequently, batteries comprising such an electrode exhibit exceptional electrochemical performance.

SECONDARY BATTERY AND ELECTRONIC DEVICE

Resumen de: US2025349894A1

A secondary battery includes a negative electrode, a positive electrode, and an electrolyte, wherein the negative electrode includes a negative electrode current collector and a negative electrode mixture layer disposed on at least one surface of the negative electrode current collector. A thickness of the negative electrode mixture layer is T μm, the negative electrode mixture layer contains carbon nanotubes and silicon-based particles, an average particle size of the silicon-based particles is D μm, and 3.7 ≤10T/D2≤24.9. The electrolyte includes a dinitrile compound and a trinitrile compound.

IONIC LIQUID ELECTROLYTES FOR BATTERIES THAT CYCLE LITHIUM IONS AND BATTERIES INCLUDING THE SAME

Resumen de: US2025349880A1

An electrolyte for a battery that cycles lithium ions includes a glyme-based ionic liquid and a cyclic ammonium-based ionic liquid. The glyme-based ionic liquid includes substantially equimolar amounts of a cation component including a complex of lithium (Li+) and a glyme and an anion component including an arsenate ion, a phosphate ion, a sulfonylimide ion, a borate ion, and/or a chlorate ion. The cyclic ammonium-based ionic liquid includes a cation component including a piperidinium ion and/or a pyrrolidinium ion and an anion component including an arsenate ion, a phosphate ion, a sulfonylimide ion, a borate ion, and/or a chlorate ion. The electrolyte has a lithium concentration of greater than or equal to 0.2 moles per liter and less than or equal to 1.6 moles per liter. The electrolyte may be used in batteries that cycle lithium ions and that include silicon-containing electroactive negative electrode materials.

RECHARGEABLE LITHIUM BATTERY

Resumen de: US2025349903A1

Disclosed is a rechargeable lithium battery including a positive electrode including a positive active material; a negative electrode including a negative active material; an electrolyte solution including a lithium salt and a non-aqueous organic solvent; and a separator between the positive and the negative electrodes, the separator including a porous substrate and a coating layer positioned on at least one side of the porous substrate. The negative active material includes a Si-based material; the non-aqueous organic solvent includes cyclic carbonate including ethylene carbonate, propylene carbonate, or combinations thereof, the cyclic carbonate being included in an amount of about 20 volume % to about 60 volume % based on the total amount of the non-aqueous organic solvent; and the coating layer includes a fluorine-based polymer, an inorganic compound, or combinations thereof. The rechargeable lithium battery has improved cycle-life and high temperature storage characteristics.

MAGNETIZER

Resumen de: US2025349452A1

A magnetizer may include a first frame member including a first accommodation portion configured to accommodate two or more first magnets arranged along a first direction with a same first polarity, and a second frame member including a second accommodation portion configured to accommodate two or more second magnets arranged with a second polarity different from the first polarity, and configured to maintain a state of being in contact with the first frame member by an attractive force between the two or more first magnets and the two or more second magnets.

CHARGER WITH DATA COLLECTION FUNCTION FOR OCV DEGRADATION ANALYSIS, AND METHOD OF ACQUIRING OCV DATA

Resumen de: US2025350142A1

A first mode is a mode in which a secondary battery (90) is charged at a predetermined current value for a first time period, and a terminal voltage value (α) of the secondary battery (90) immediately after the lapse of the first time period is measured. A second mode is a mode in which the charging is stopped for a second time period after execution of the first mode, and an OCV value (β) of the secondary battery (90) immediately after the lapse of the second time period is measured. A determination unit (24) compares a current terminal voltage value (αA) measured in the first mode with a previous terminal voltage value (αB) measured in the immediately previous first mode. When the first time period is a (minute) and the predetermined current value is I (C), the determination unit (24) determines not to shift to the second mode in a case where αA/αB<(a×I/250)+1 (0.5≤a≤3, 0.4≤I≤2.4, and 0.6≤a×I≤1.2). The determination unit (24) determines to shift to the second mode in a case where αA/αB≥(a×I/250)+1 (0.5≤a≤3, 0.4≤I≤2.4, and 0.6≤a×I≤1.2). A measuring unit (22) measures the OCV value (β) in the second mode.

CHRGING CONTROL METHOD, CHARGING APPARATUS, AND CHARGING SYSTEM

Resumen de: US2025350141A1

After a charger establishes a connection to an electronic device according to a first charging protocol, a charging circuit of the electronic device receives, in a first time period under the first charging protocol, a first power signal output by the charger, where the first power signal has a first electrical parameter; and receives, in a second time period under the first charging protocol, a second power signal output by the charger, where the second power signal has a second electrical parameter. The second electrical parameter is greater than the first electrical parameter, and the second time period is after the first time period and is adjacent to the first time period. Therefore, in a current or voltage rise phase, a current or voltage rise speed can be increased, thereby increasing the charging speed.

POWER SUPPLY EXTENSION DEVICE OF NOTEBOOK COMPUTER

Resumen de: US2025350149A1

A power supply extension device of notebook computer includes: a notebook computer, which includes a detection device; a wireless charging device, which is arranged on the notebook computer; and a solid state battery, which is electrically connected with the wireless charging device. A user may place the detection device of the notebook computer to contact with the wireless charging device, with the wireless charging device being electrically connected with the solid state battery, the detection device being provided with a second coil induction module and the wireless charging device being provided with a first coil induction module to couple with each other so as to have the notebook computer wirelessly charged with the electrical power of the solid state battery.

WIRELESS POWER TRANSMISSION OR RECEPTION SYSTEM AND WIRELESS POWER TRANSMISSION OR RECEPTION METHOD

Resumen de: US2025350151A1

The present invention relates to a wireless power transmission or reception system for measuring a valid charging time in which a voltage value measured by a reception unit is equal to or greater than a pre-configured voltage value, and controlling transmission power so that the valid charging time is included in a pre-configured target charging time range.

CELL BALANCING METHOD, AND CELL BALANCING DEVICE AND BATTERY PACK PERFORMING THE SAME

Resumen de: US2025350127A1

The present disclosure relates to a cell balancing method and a cell balancing device performing the cell balancing method, and a battery pack. The cell balancing device may include: a storage device that storage a balancing profile for cell balancing; a balancing device configured to perform a discharge function for cell balancing of a plurality of battery cells; and a first controller configured to control the balancing device to perform pulse discharge for a balancing target battery cell selected from among the plurality of battery cells referring to the balancing profile if the cell balancing is required. The balancing profile may include a pulse period and a duty cycle set based on a natural frequency of a dendrite. The balancing device may be further configured to perform the pulse discharge according to a pulse signal that satisfies the pulse period and the duty cycle.

BATTERY SYSTEM

Resumen de: US2025350130A1

A battery system of an electric vehicle includes a plurality of battery packs. Each battery pack includes a plurality of battery cells enclosed within a housing. A battery management device is electrically connected to each of the battery packs and configured to control an electrical output of the plurality of battery packs.

BATTERY SEPARATOR AND PREPARATION METHOD THEREFOR, AND SECONDARY BATTERY AND ELECTRIC DEVICE

Resumen de: US2025350004A1

Disclosed are a battery separator and a preparation method therefor, as well as a secondary battery and an electric device, relating to the field of batteries. The battery separator includes a base film and a coating, wherein the coating is disposed on a surface of the base film that faces the cathode of a battery. The coating comprises both a conductive material and an insulating material. When applied in a lithium battery, the separator functions such that, if lithium dendrites grow through the uncoated side of the base film, the coating intercepts the dendrites before they make direct contact with the cathode. This structure prevents a direct short circuit between the anode and cathode. Instead, a low-current micro-short circuit is formed through the coating, which effectively delays the onset of serious failure or thermal events. As a result, the separator improves the safety and operational reliability of the lithium battery.

BATTERY MODULE

Resumen de: US2025350007A1

A battery module includes a plurality of prismatically configured battery cells (2) which together form a cell stack (4) and which are accommodated in a housing (3) of the battery module (1). An electrical insulation element (7) is arranged at least on a bottom surface (61) of a battery cell (2) between the respective battery cell (2) and the housing (3). The housing has an opening (8) and a thermal balancing material (9) is arranged in the opening (8) between the battery cell (2) and the housing (3).

RECHARGEABLE BATTERY WITH INTERNAL CURRENT LIMITER AND INTERRUPTER

Resumen de: US2025350002A1

A high energy density rechargeable (HEDR) battery employs a combined current limiter/current interrupter to prevent thermal runaway in the event of internal discharge or other disruption of the separator. The combined current limiter/current interrupter is interior to the battery.

BATTERY CELL AND METHOD OF MANUFACTURING THE SAME

Resumen de: US2025350003A1

A battery cell according to an embodiment of the present disclosure may include an electrode assembly in which a plurality of separators are disposed between a plurality of electrode plates; a plurality of electrode tabs extending from the plurality of electrode plates and bonded to an electrode lead; and a plurality of short-circuit blocking portions in which one surface thereof is bonded to the separator, and the other surface thereof is bonded to the electrode tabs to suppress movement of the electrode tab.

INTEGRATED TERMINAL, SECONDARY BATTERY INCLUDING THE SAME, AND METHOD OF MANUFACTURING THE SAME

Resumen de: US2025349998A1

An integrated terminal includes: a terminal assembly including a terminal member configured to adjoin a sub-plate electrically connected to an electrode assembly of a secondary battery and a terminal insulator that surrounds a side of the terminal member; and a cap insulator extending along a through hole in a cap plate that is coupled to a case that accommodates the electrode assembly and in which the through hole into which the terminal assembly is inserted is formed. When the terminal assembly is inserted into the through hole, the terminal insulator and the cap insulator adjoin each other, and a reinforced material is inserted into at least one of the terminal insulator and the cap insulator.

MODULAR FLEX CIRCUIT INTEGRATION FOR VARIED SERIES COUNT CONFIGURATIONS FOR A BATTERY

Resumen de: US2025350000A1

Disclosed is a method which may include providing a battery cell sensing application specific integrated circuit comprising at least a first channel and a second channel, a first connection line connected to the first channel and a second connection line connected to the second channel, a first weld pad connected to the first connection line, a second weld pad connected to the second connection line, and binding a first shunt to the first weld pad and the second weld pad.

BATTERY, CURRENT COLLECTOR PLATE APPLIED THERETO, AND BATTERY PACK AND VEHICLE COMPRISING THE SAME

Resumen de: US2025349997A1

A battery includes an electrode assembly including a first electrode tab and a second electrode tab defined by an uncoated portion; a battery housing accommodating the electrode assembly and electrically connected to the second electrode tab; a cap plate configured to close an open portion of the battery housing; a current collector plate including an edge portion, a tab coupling portion extended inwards from the edge portion and coupled to the first electrode tab and a terminal coupling portion spaced apart from the tab coupling portion; and a terminal coupled to the terminal coupling portion.

COMPOSITE SEPARATOR, SECONDARY BATTERY, AND POWER CONSUMING APPARATUS

Resumen de: US2025350005A1

A composite separator, a secondary battery, and a power consuming apparatus. The composite separator includes a separator substrate and a conductive coating disposed on a side of the separator substrate. The conductive coating in the composite separator is conducive to improving the current density for deposition of metal ions on a negative electrode current collector such that the metal ions are evenly deposited, and is also conducive to reducing an overpotential of a battery including same such that metal dendrites are further alleviated.

INTEGRATED TERMINAL, SECONDARY BATTERY INCLUDING THE SAME, AND METHOD OF MANUFACTURING THE SAME

Resumen de: US2025349999A1

Disclosed are an integrated terminal, a secondary battery including the same, and a method of manufacturing the same. The integrated terminal may include a terminal assembly including a terminal member disposed to adjoin a sub-plate electrically connected to an electrode assembly of a secondary battery and a terminal insulator surrounding a side of the terminal member and a cap insulator formed along a through hole in a cap plate coupled to a case accommodating the electrode assembly and in which the through hole into which the terminal assembly is inserted is formed. When the terminal assembly is inserted into the through hole, the terminal insulator and the cap insulator may adjoin one another. A welding groove may be formed in a portion at which the terminal insulator and the cap insulator adjoin each other. The terminal insulator and the cap insulator may be welded and coupled along the welding groove.

SECONDARY BATTERY

Nº publicación: US2025349996A1 13/11/2025

Solicitante:

SAMSUNG SDI CO LTD [KR]
Samsung SDI Co., Ltd

Resumen de: US2025349996A1

Embodiments of the present disclosure relate to a secondary battery, and may provide a secondary battery capable of protecting an electrode assembly and improving battery capacity relative to the same volume. Embodiments of the present disclosure include a secondary battery including an electrode assembly including a first electrode plate having a first substrate tab, a second electrode plate having a second substrate tab, and a separator interposed between the first electrode plate and the second electrode plate, a first lead welded to the first substrate tab, a second lead welded to the second substrate tab, a heat shrinkable tube around a thickness portion of the electrode assembly, and a case accommodating the electrode assembly.