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1482
resultados
Última actualización
11/09/2025 [07:18:00]
Resultados 425 a 450 de 1482
Resumen de: US2025277870A1
A battery cell inspection system includes a transport unit including a plurality of conveyors arranged in multiple levels in a vertical direction, and configured to transport a tray on which an assembled battery cell is mounted, a cell inspection unit corresponding to the multiple levels of the transport unit, and configured to perform pre-charging and cell defect inspection of the battery cell, and a shuttle configured to move between the cell inspection unit and the transport unit to carry the tray into the cell inspection unit or take the tray from the cell inspection unit.
Resumen de: US2025277863A1
The present application provides a battery SOC evaluation method, an apparatus, a device and a medium. The method includes: acquiring charging-discharging data of a first battery cell pack at different first temperatures and different first rates, where the number of the first battery cell pack is at least one, and the first battery cell pack includes a first battery cell; acquiring first SOCs of the first battery cell pack according to the charging-discharging data, where the charging-discharging data includes first voltages of the first battery cell pack; establishing an association table of the first SOCs with the first temperatures, the first rates and the first voltages; acquiring a second temperature, a second rate and a second voltage of a battery pack, and acquiring a second SOC of each second battery cell in the battery pack by the association table, where the battery pack includes multiple second battery cells.
Resumen de: US2025279486A1
An all-solid-state secondary battery includes a laminate wherein a positive electrode layer containing a positive electrode active material and a negative electrode layer containing a negative electrode active material are laminated with a solid electrolyte layer therebetween, and a positive electrode external terminal attached to the positive layer on a first surface of the laminate and a negative electrode external terminal attached to the negative layer on a second surface. The positive layer extends from the first surface to the second, the negative layer extends from the second surface to the first. In the laminate, a void is formed in at least one region of a region surrounded by the positive layer and first surface, a region surrounded by the positive layer, solid layer, and first surface, a region surrounded by the negative layer and second surface, and a region surrounded by the negative layer, solid layer, and second surface.
Resumen de: US2025279496A1
A battery system comprises: a battery pack comprising at least one battery cell, and a temperature sensor, a battery management system and a heating apparatus, wherein a positive-electrode active material of the battery cell comprises a lithium-containing transition metal phosphate, the lithium-containing transition metal phosphate at least comprising a manganese element; the temperature sensor is used for acquiring the temperature of the battery cell; and the battery management system is used for acquiring a first state parameter of the battery cell before and/or during a charging process of the battery cell, the first state parameter of the battery cell being used for generating a control instruction for the heating apparatus, and the control instruction being used for controlling the heating apparatus to heat the battery cell.
Resumen de: US2025279430A1
A lithium secondary battery includes positive and negative electrode plates. The positive-electrode active material layer includes a positive-electrode active material Li1+aM1bFe1-cAcP1-dEdO4 with a mass ratio of not less than 85 wt %. The negative-electrode active material layer includes graphite with a mass ratio of not less than 85 wt %. Areal density, CWc in g/1540.25 mm2, and reversible lithium capacity, Dc in mAh/1540.25 mm2, of the positive-electrode active material layer on one side of the positive electrode plate, reversible lithium capacity, Da in mAh/1540.25 mm2, of the negative-electrode active material layer on the side of the negative electrode plate facing the positive electrode plate, first lithiation capacity, Ca in mAh/1540.25 mm2, of the negative-electrode active material layer on the side of the negative electrode plate away from the positive electrode plate, and conductivity, ρ at 25° C. in S/cm, of the electrolyte solution satisfy equations 1 and 2 described in the disclosure.
Resumen de: US2025279500A1
A battery includes a battery cell and a thermal management component. The battery cell includes a first surface and a second surface, and the thermal management component includes a first thermal management component and a second thermal management component. The first thermal management component is arranged on the first surface, and the first thermal management component is configured to adjust the temperature of the battery cell. The second thermal management component is arranged on the second surface, and the second thermal management component is configured to adjust the temperature of the battery cell.
Resumen de: US2025279497A1
A method for improved heat discharge may include sensing a temperature value of a battery circuit; activating a heat dissipation element within the battery circuit when the temperature value reaches a threshold; discharging heat from the battery circuit via the activated heat dissipation element; and deactivating the heat dissipation element when the temperature value falls below the threshold.
Resumen de: US2025279438A1
A battery electrode for a battery being either a cathode and/or an anode is provided with enhanced electrical conductivity for use in a battery. The cathode having an active cathode material and/or the anode having an active anode material. The active cathode material is infused into a conductive nonwoven structure and/or the active anode material is infused into a conductive nonwoven structure. The conductive nonwoven structures are selected from metal nonwoven structures (comprised of metal fibers) and metal-coated nonwoven structures (comprised of metal-coated fibers). The metals and metal coatings may be selected from metals including nickel, aluminum, copper, silver, and other metals. The metal-coated nonwoven structure may be a metal-CVD coated nonwoven structure. The conductive nonwoven structure may be secured to a foil current collector using adhesive, by thermal sintering, or other methods of adherence.
Resumen de: US2025279537A1
An electricity-driven vehicle includes: a floor panel; a depressed portion of a groove shape, that is formed on the floor panel and that extends in a vehicle width direction; a battery casing that is placed in the depressed portion; one or more batteries of a replaceable type, that can be attached to and detached from the battery casing; a smoke exhaust duct that extends from the battery casing, that penetrates through a bottom surface of the depressed portion, and that is opened to an outside of the vehicle; and a check valve that is provided on the smoke exhaust duct, and that prohibits inflow of a fluid from the outside of the vehicle into the battery casing.
Resumen de: US2025279513A1
A battery cell includes a case accommodating an electrode assembly in an internal accommodation space and having an opening formed therein, a cap plate at least partially inserted into the accommodation space through the opening and coupled to the case, and a support portion disposed in the accommodation space and supporting a lower surface of the cap plate, wherein a side surface of the cap plate facing the internal surface of the case is spaced apart 10 from the internal surface of the case by a predetermined distance to form a fixing space, and the support portion is disposed below the cap plate so that at least a portion thereof forms a lower surface of the fixing space.
Resumen de: US2025279476A1
A secondary battery and an electrical apparatus comprising the secondary battery. The secondary battery comprises: a negative pole piece and an electrolyte. The negative pole piece of the secondary battery comprises a silicon-carbon composite material having a three-dimensional-network cross-linked pore structure, and the electrolyte of the secondary battery comprises lithium fluorosulfonyl imide.
Resumen de: US2025279532A1
A battery cell includes: a case accommodating an electrode assembly in an accommodating space; a cap plate coupled to at least one side of the case; a vent provided in the case or the cap plate; and a venting cover disposed to cover the vent, and provided to be opened by pressure acting from the accommodating space to the outside of the case, wherein the venting cover includes a venting sheet provided to be opened by a predetermined amount of pressure, and including a first surface facing the vent and a second surface opposite to the first surface; and a venting cap having a support portion supporting the first surface of the venting sheet.
Resumen de: US2025277857A1
A battery management system includes a sensing circuit to acquire a state parameter of each of a plurality of battery cells connected in series; and a control circuit to determine, for each battery cell, a first state of charge (SOC) change which is a difference between a first SOC at a first charge time and a second SOC at a second charge time by applying a SOC estimation algorithm to the state parameter acquired during charging. The control circuit determines a reference factor by applying a statistical algorithm to the first SOC changes of at least two of the plurality of battery cells. The control circuit detects an internal short circuit fault in each battery cell based on the first SOC change of each battery cell and the reference factor.
Resumen de: US2025277858A1
An inspection method for a low-voltage defect of a lithium secondary battery includes performing a microcurrent charging/discharging process having N charging/discharging sections, N being an integer of 2 or more, and for each charging/discharging section, applying a microcurrent to the lithium secondary battery; measuring a change in voltage of the lithium secondary battery before and after each charging/discharging section; and screening for the low-voltage defect of the lithium secondary battery based on the measured change in voltage. The lithium secondary battery having the low-voltage defect is not shipped. The microcurrent for each charging/discharging section is at a current rate of 0.000001 C to 0.0001 C.
Resumen de: US2025277861A1
An electrochemical storage diagnostic system is configured to perform an electrical test to measure energy storage device parameters. The diagnostic system includes a charge management controller, electrically coupled to a power multiplexer, a power converter circuit, and an isolated converter circuit. The charge management controller is programmed with instructions to identify a device under test, selected from at least one member of the plurality of energy storage devices to perform an electrical test. Then, adjust a charge in the secondary energy storage device to a target voltage through the power multiplexer by transferring energy between the secondary energy storage device and a support device, selected from at least one member of the plurality energy storage devices. After that, transfer electrical power through the power multiplexer and power converter circuit to the device under test in order to perform the electrical test. Finally, complete the electrical test.
Resumen de: US2025277866A1
A battery management system for diagnosing the degradation of secondary batteries equipped with a positive electrode including lithium iron phosphate as a positive electrode active material is provided. The battery management system includes a sensing part configured to measure the voltage and open circuit voltage of a secondary battery; a memory part configured to store the open circuit voltage measured by the sensing part; and a control part configured to determine that the secondary battery is degraded if the amount of change in the open circuit voltage due to charge/discharge cycles of the secondary battery, for at least five charge/discharge cycles, satisfies the following condition: Vn−1−Vn<0.002V, (where Vn−1 represents the open circuit voltage measured during the (n−1)th charge-discharge cycle, Vn represents the open circuit voltage measured during the nth charge/discharge cycle, and n is an integer.)
Resumen de: US2025279495A1
A vehicle includes a vehicle chassis supported by four wheels. At least one electric motor provides drive torque to at least one of the four wheels. A rechargeable energy storage system is supported by the vehicle chassis and provides electricity to the electric motor. The rechargeable energy storage system includes a housing and a plurality of battery cells disposed within the housing. A base of the housing includes an extruded aluminum tray assembly having liquid coolant passages extending through the aluminum tray assembly and air cooling fins extending from a bottom of the extruded aluminum tray assembly.
Resumen de: US2025279492A1
A foil recovery apparatus is provided and includes a base, a conveying device, and a collecting device. The conveying device includes a conveyor belt and a first roller set. The first roller set includes a first conveying roller and a second conveying roller. The conveyor belt is driven around the first conveying roller and the second conveying roller for transmission. The collecting device includes a storage bin and a carrying platform. The storage bin includes a pushing plate and defines a receiving cavity. The storage bin defines a first opening. The pushing plate and the first opening are located on two opposite sides of the receiving cavity, respectively, and the first opening is opposite to the pushing plate. The carrying platform includes a pressing plate. The storage bin is disposed at one side of the second conveying roller away from the first conveying roller.
Resumen de: US2025279417A1
A negative electrode sheet includes a negative electrode current collector as well as a capacity providing layer, a conductive bonding layer, and a fast ion conductor layer which are sequentially stacked on at least one side surface of the negative electrode current collector, where the capacity providing layer comprises a first negative electrode active material, a first binder, and a first conductive agent, the fast ion conductor layer comprises a carbon active material, a lithium superionic conductor, a second binder, and a second conductive agent, and the specific capacity of the first negative electrode active material is greater than that of the carbon active material.
Resumen de: US2025279465A1
Provided is a fixing jig capable of controlling a surface pressure for pressurizing a battery module assembly when fixing the battery module assembly to an electric vehicle, which includes: a pair of body units facing each other each having one end branched into a supporting portion and a pressurizing portion formed therebetween with an insertion groove into which a part of the electric vehicle is inserted; a pressurizing member rotatably installed inside the pressurizing portion to pressurize the battery module assembly by controlling the surface pressure while selectively and partially protruding outward from the pressurizing portion; and a control unit provided on one side of the body unit to control a rotating degree of the pressurizing member to control a protruding degree of the pressurizing member outward from the pressurizing portion. Thus, a noise or overheating of the battery module assembly is prevented.
Resumen de: WO2025179835A1
The present application provides a battery and an electric device. The battery comprises a battery module and a heat exchange component, the battery module comprises a plurality of battery cells, and gaps are formed between adjacent battery cells. The heat exchange component comprises a manifold and a plurality of nozzles, the manifold is located on one side of the plurality of battery cells in a first direction, a flow channel for a heat exchange medium to flow is provided in the manifold, and the plurality of nozzles are connected to the manifold and face the battery cells. In the first direction, the projections of the nozzles at least partially overlap the projections of the gaps.
Resumen de: WO2025180096A1
The present application relates to the technical field of secondary batteries, and provides a secondary battery and an electronic device. A positive electrode in the secondary battery provided in the present application comprises lithium cobalt oxide having a lamellar rock salt type structure, the lithium cobalt oxide has a space group R-3m, and the lithium cobalt oxide comprises an Mg element, a Ni element and an Al element, and can synergize with a nitrile compound having a suitable content in an electrolyte, thereby improving the stability of the positive electrode material. The present application can improve the floating charge performance of the secondary battery and reduce the impedance, and thus the secondary battery has good safety and reliability.
Resumen de: WO2025180048A1
An information acquisition assembly (10) of a battery cell (20), a battery (100) and an electric device (1000). The information acquisition assembly (10) of the battery cell (20) comprises: an information sampling structure (1) and a mounting base film (2); the information sampling structure (1) is suitable for being connected to the battery cell (20) to acquire information parameters of the battery cell (20); the mounting base film (2) comprises a base film material and a thermosetting adhesive layer; the thermosetting adhesive layer and the base film material are stacked; and the information sampling structure (1) is arranged on the thermosetting adhesive layer.
Resumen de: WO2025183260A1
The present invention relates to a method for preparing an anode slurry for a solid-state battery and, more specifically, the method for preparing an anode slurry for a solid-state battery comprises the steps of: mixing an anode material and a binder solution so as to prepare a first mixture containing 30-50 wt% of solids; kneading the first mixture; additionally mixing the first mixture with the binder solution so as to prepare a second mixture containing 25-35 wt% of solids; and additionally mixing the second mixture with a solvent so as to prepare a third mixture.
Nº publicación: WO2025183259A1 04/09/2025
Solicitante:
SAMSUNG SDI CO LTD [KR]
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Resumen de: WO2025183259A1
The present invention relates to a method for preparing a negative electrode slurry, a negative electrode slurry prepared thereby, and an electrode for an all-solid-state battery, manufactured by applying the negative electrode slurry. More specifically, the method for preparing a negative electrode slurry for an all-solid-state battery comprises the steps of: preparing a first mixture by mixing a negative electrode material and a binder solution containing a solvent and a first binder; preparing a dispersion by dispersing the first mixture; and preparing a second mixture by mixing a second binder with the dispersion.
BOPI
Sede Electrónica
