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1057
resultados
Última actualización
21/11/2025 [07:10:00]
Resultados 200 a 225 de 1057
Resumen de: WO2025231628A1
The present application discloses a secondary battery, a manufacturing method for an electrode assembly, and an electronic device. The secondary battery comprises an electrode assembly and a first tab. The electrode assembly comprises a first electrode sheet, a second electrode sheet, and a separator provided between the first electrode sheet and the second electrode sheet. The first electrode sheet, the second electrode sheet, and the separator are stacked and wound to form a wound structure. In the winding direction of the electrode assembly, the outermost electrode sheet in the electrode assembly is the first electrode sheet, the outermost section of the first electrode sheet is partially stacked in a first direction to form an overlapping structure, and the first direction is the stacking direction of both the second electrode sheet and the separator which are adjacent to the overlapping structure. The first tab is connected to the outermost section of the first electrode sheet, and in the winding direction of the electrode assembly, the overlapping structure is located on the side of the first tab close to the winding center of the electrode assembly. The present application facilitates the reduction of the risk of damage to the first electrode sheet.
Resumen de: WO2025231840A1
A secondary battery and an electronic apparatus. The secondary battery comprises a positive electrode sheet and an electrolyte; the positive electrode sheet comprises a positive electrode current collector and a positive electrode material layer; a plurality of first protrusions are provided on the surface of the positive electrode material layer away from the positive electrode current collector; in the thickness direction of the positive electrode sheet, the average height of the plurality of first protrusions is h1
Resumen de: US2025349897A1
An electrolytic solution that enables improvement in durability of an electrochemical device, reduction of the amount of gas generated therein, and reduction of the amount of metal precipitated therein, and an electrochemical device and a secondary battery using the electrolytic solution. An electrolytic solution including at least one compound represented by the formula (1) of the disclosure (i.e., Rf1OR, wherein Rf1 is a fluorinated alkyl group having 1 to 5 carbon atoms, and R is K or Na).
Resumen de: US2025345586A1
Mechanical circulatory support systems that employ a connector cable for transmitting power and data are disclosed. A mechanical circulatory support system includes a ventricular cuff, a ventricular assist device, an external module, and a connector cable. The ventricular cuff is configured for attachment to a heart. The ventricular assist device is configured for attachment to the ventricular cuff and includes a housing, a rotor, a stator assembly, and control electronics. The external module includes an internal battery and is configured to power and control operation of the mechanical circulatory support system. Power and data are transmitted from the external module to the ventricular assist device over the connector cable. The connector cable includes two redundant pairs of electrical conductors.
Resumen de: US2025347746A1
An estimation method includes using an energy storage device model simulating a behavior of an energy storage device to estimate an estimated voltage value of the energy storage device when energization is performed in an assumed energization pattern, and correcting the estimated voltage value estimated by a correction value obtained based on an error in an estimated state value of the energy storage device.
Resumen de: US2025347604A1
An apparatus for material testing of a specimen, in particular a battery device. The apparatus includes a specimen holder arrangement with a specimen holder for holding a specimen to be tested, a rod arrangement for moving in direction to the specimen holder for transmitting a mechanical load to the specimen, and an electromechanical actuator for moving at least one of the rod arrangement and the specimen holder arrangement with respect to each other along a longitudinal impact direction. The electromechanical actuator arrangement is configured to adjust the speed to any speed between 0 m/s to 12 m/s between the rod arrangement and the specimen holder arrangement other for transmitting a mechanical load to the specimen.
Resumen de: US2025347739A1
A test method and test apparatus for a chip, an upper computer, a chip, and a device. The method includes: obtaining a test circuit which is built according to a hot-plugging test bench requirement, where the test circuit includes at least one battery module and at least one chip; connecting the at least one chip to the at least one battery module; and testing performance of the at least one chip.
Resumen de: US2025347466A1
To provide a method of forming a positive electrode active material with high productivity. To provide a manufacturing apparatus capable of forming a positive electrode active material with high productivity. Provided is a method of forming a positive electrode active material including lithium, a transition metal, oxygen, and fluorine. An adhesion preventing step is performed during heating of an object. Examples of the adhesion preventing step include stirring by rotating a furnace during the heating, stirring by vibrating a container containing an object during the heating, and crushing performed between the plurality of heating steps. By these manufacturing methods, a positive electrode active material having favorable distribution of an additive at the surface portion can be formed.
Resumen de: US2025347452A1
A coolant leak detection and mitigation system for a rechargeable energy storage system having multiple battery cells arranged in individual battery modules includes a cooling system having a main coolant loop and multiple parallel coolant branches. Each coolant branch adjusts the temperature of one battery module using a portion of coolant from the main coolant loop. The cooling system also has flow-valve(s) for regulating and distributing the coolant from the main coolant loop across the coolant branches. An electronic controller is configured to command a change in coolant temperature in the main coolant loop. The controller is also configured to monitor temperature change in each battery module in response to the main coolant loop temperature change. The controller is additionally configured to identify a battery module exhibiting a temperature change indicative of a coolant leak and shut off coolant flow into the coolant branch of the affected battery module.
Resumen de: US2025346987A1
A multi-hierarchical composite material comprises: a carbon matrix and a nano-silicon-based composite material, wherein the nano-silicon-based composite material is prepared by means of a thermal plasma process, which specifically comprises: bombarding and ionizing a micron-scale silicon powder and one or more substances containing a doping element in a high-frequency plasma processing device to form a plasma gas having a temperature of 5000 K or more, and then cooling same and depositing same into a core, thereby obtaining a nanoscale silicon-based composite material with doping elements uniformly embedded and distributed at an atomic scale; the doping element comprises at least one of C, N, B, P, S, Mg, Ca, Al, Zn, Mn, Ni or Ti; the carbon matrix is a porous carbon material; and the nano-silicon-based composite material is deposited in the porous structure of the carbon matrix.
Resumen de: US2025347453A1
A coolant leak detection and mitigation system for a rechargeable energy storage system having multiple battery cells arranged in individual battery modules includes a cooling system having a main coolant loop and multiple parallel coolant branches. Each coolant branch adjusts the temperature of one battery module using a portion of coolant from the main coolant loop. The cooling system also has flow-valve(s) for regulating and distributing the coolant from the main coolant loop across the coolant branches. An electronic controller is configured to monitor the cooling system for coolant loss and, in response to an indication of coolant loss, assess each coolant branch for a coolant leak. The controller is also configured to identify a coolant branch having a coolant leak and shut off, via the flow-valve(s), coolant flow into the coolant branch having the coolant leak.
Resumen de: WO2025232217A1
The present disclosure relates to a battery tray, a battery case, a battery, and electric device. The battery tray comprises: a carrying assembly (1), wherein the carrying assembly (1) is provided with an accommodating area (10) used for supporting battery cells (2), and the accommodating area (10) is closed and continuous; and a liquid cooling assembly (3) connected to the carrying assembly (1) and located on the side of the carrying assembly (1) away from the accommodating area (10), wherein the liquid cooling assembly (3) is separated from the accommodating area (10) by means of the carrying assembly (1).
Resumen de: WO2025232433A1
The present disclosure relates to an adhesive tape application apparatus, a winding device, and a battery cell. The adhesive tape application apparatus comprises: a bending mechanism used for bending bending areas on an electrode sheet material strip which are adjacent to tab areas, so as to form wrinkle parts on one side of the electrode sheet material strip; a first adhesive tape application mechanism arranged at the bending mechanism and used for applying a first adhesive tape to the side of the electrode sheet material strip facing away from the wrinkle parts, so as to cover the tab areas and the bending areas; and a second adhesive tape application mechanism arranged downstream of the bending mechanism and used for applying a second adhesive tape to the side of the electrode sheet material strip facing away from the first adhesive tape, so as to cover the tab areas and the bending areas. In this way, tabs in the tab areas are protected by the first adhesive tape and the second adhesive tape; in addition, the wrinkle parts are formed between the second adhesive tape and the electrode sheet material strip, so that when the electrode sheet material strip is pulled, the wrinkle parts can be adaptively unfolded to exert a buffering function, that is, a certain amount of stretch is reserved, thereby greatly reducing the tearing risk of electrode sheet material strips.
Resumen de: WO2025232379A1
A positive electrode material, a positive electrode sheet and a battery. The general chemical formula of the positive electrode material is LiaNixCoyMzNbO2, wherein 0.95≤a≤1.1, 0.6≤x<1, 0
Resumen de: WO2025232445A1
A non-aqueous electrolyte for a lithium ion battery, a lithium ion battery, and an electronic device. The non-aqueous electrolyte comprises a non-aqueous solvent and a lithium salt; the non-aqueous electrolyte contains specific amounts of lithium difluorophosphate, 1,3,6-hexanetricarbonitrile, 1,2,3-tris(2-cyanoethoxy)propane, and a boron-containing lithium salt additive; the total content of the lithium difluorophosphate and the 1,3,6-hexanetricarbonitrile in the non-aqueous electrolyte is set to a specific range, and the total content of the 1,2,3-tris(2-cyanoethoxy)propane and the boron-containing lithium salt additive is set to a specific range. By using the non-aqueous electrolyte, not only can the gas generation amount of an electrode of the lithium ion battery be ameliorated, but also the IV resistance is suppressed, thereby significantly improving the high-temperature cycle performance of the lithium ion battery.
Resumen de: US2025349926A1
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 on a battery cell (2) at least on a bottom surface (61) of the battery cell (2) and partially on opposite lateral surfaces (62) of the battery cell (2) in such a way that the electrical insulation element (7) is arranged between the respective battery cell (2) and the housing (3), as well as between the respective battery cell (2) and battery cells (26) adjacent to the battery cell (2). A thermal compensation material (9) is arranged between the battery cell (2) and the housing (3).
Resumen de: US2025349918A1
The present invention discloses a sensory battery cell including a plurality of battery cells arranged in a first battery network, wherein the first battery network is a series network or a parallel network or a combination thereof, and a sensing integrated circuit connected in parallel with each battery cell to sense performance parameters of the plurality of battery cells, wherein the sensing integrated circuit includes a function circuit able to take an action for the battery cell that reaches a set condition. The present invention further discloses a intelligent battery using the sensory battery cell, a power battery using the intelligent battery, a battery management system and related methods thereof.
Resumen de: US2025349899A1
A battery cell comprises an electrolyte. The electrolyte solution contains an electrolyte salt, wherein the electrolyte salt contains lithium salt and metal Me salt, the ionic radius of Me positive ions is greater than the ionic radius of lithium ions, and the weight content of the lithium ions in the electrolyte is denoted as w1, and the weight content of the Me positive ions in the electrolyte is denoted as w2, both of which are based on the total weight of the electrolyte. In a charge and discharge test of a battery cell, the total discharge capacity of the battery cell is denoted as Q1, and the discharge capacity of the battery cell with a discharge voltage of 3.6 V is denoted as Q2. When the remaining capacity of the battery cell is greater than 90%, 0.8≤(Q2/Q1)/w2/(w1+w2)≤8.5 is satisfied.
Resumen de: US2025349841A1
An embodiment provides a composite positive electrode active material including: a positive electrode active material; and a coating layer on a surface of the positive electrode active material, the coating layer including a compound represented by Chemical Formula 1. Chemical formula 1 is as described in the specification.
Resumen de: US2025349914A1
The present application provides a multifunctional mounting bracket, comprising a mounting plate and a busbar mounting member. The busbar mounting member is connected to one side of the mounting plate; the mounting plate is used for mounting an LECU device; the busbar mounting member is used for mounting a busbar. The multifunctional mounting bracket provided by the present application can be used for simultaneously mounting and fixing the LECU device and the busbar, thereby simplifying mounting processes, reducing an occupation space, and saving costs. The present application further provides a battery mounting module and a battery pack.
Resumen de: US2025349822A1
A system for dry manufacturing an electrode for an energy storage device includes a substrate configured to move in a feed direction. In addition, the system includes a powder applicator configured to deposit a dry powder onto a surface of the substrate. Further, the system includes at least one pair of spreading rollers. The pair of spreading rollers includes an upper spreading roller and a lower spreading roller positioned below the upper spreading roller. The upper spreading roller and the lower spreading roller are positioned downstream of the powder applicator relative to the feed direction. Each spreading roller has a central axis of rotation and a radially outer surface. The radially outer surface of the upper spreading roller is configured to directly contact and spread the dry powder on the substrate. The upper spreading roller is configured to rotate in a rotational direction that is counter to the feed direction of the substrate proximal the substrate and dry powder and the lower spreading roller is configured to rotate in a rotational direction that is the same as the rotational direction of the upper spreading roller. Still further, the system includes at least one pair of compaction rollers. The pair of compaction rollers includes an upper compaction roller and a lower compaction roller positioned below the upper compaction roller. The at least one pair of spreading rollers are positioned downstream of the upper spreading roller and the lower spreading roller re
Resumen de: US2025349827A1
A positive electrode active material comprises a first active material represented by a formula (I) that is secondary particles each consisting of 50 or more primary particles aggregated together, as well as a second active material represented by a formula (II) that is at least one of single particles and secondary particles each consisting of 2 to 10 primary particles aggregated together. The formula (I) and the formula (II) are as specified in the claims. A content of the first active material in the positive electrode active material is from 20 to 70 mass %. A ratio (D150/D250) of an average particle size (D150) of the first active material to an average particle size (D250) of the second active material is from 2.45 to 5.95.
Resumen de: US2025349821A1
Provided herein are compositions and methods for calendering cathode materials for lithium battery construction.
Resumen de: US2025349830A1
A negative electrode material includes a silicon-carbon particle, the silicon-carbon particle has a hollow structure, the hollow structure includes a cavity and a shell surrounding the cavity, the shell includes a silicon-carbon layer; a mass content of silicon in the silicon-carbon particle ω and a ratio of a radius of the cavity to a radius of the silicon-carbon particle a satisfyω≤a31.05×(1-a3).The negative electrode material of the present disclosure can effectively alleviate the expansion of silicon material during battery cycling, improve the cycling performance of the battery, and effectively enhance the conductivity of the negative electrode material.
Nº publicación: US2025345841A1 13/11/2025
Solicitante:
SAMSUNG SDI CO LTD [KR]
Samsung SDI Co., Ltd
Resumen de: US2025345841A1
The present disclosure relates to a crimping apparatus for a battery cell, and the technical object to be achieved is to provide a crimping apparatus for a battery cell capable of improving the formation quality of a battery cell. To this end, the present disclosure provides a crimping apparatus for a battery cell, which includes a lower jig disposed around a circumference of a battery can, a first upper jig which descends to come into contact with the lower jig above the battery can and presses and moves the lower jig toward the battery can, and a second upper jig which is disposed inside the first upper jig, descends along with the first upper jig, and presses an end portion of the battery can downward to bend the end portion toward a cap assembly.
BOPI
Sede Electrónica
