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1398
resultados
Última actualización
16/12/2025 [07:11:00]
Resultados 225 a 250 de 1398
Resumen de: US2025379254A1
A battery includes a negative electrode plate, a positive electrode plate and an electrolyte solution. The negative electrode plate includes a negative electrode active material layer, which includes a silicon carbon; a surface of the negative electrode active material layer has recesses; the electrolyte solution includes a carbonate compound, and the carbonate compound comprises fluoroethylene carbonate; and a charged cut-off voltage of the battery is greater than or equal to 4.48 V. The battery not only exhibits high energy density but also significantly mitigates the problem of damage and corner cracking of the outer film casing in the later stages of battery cycling.
Resumen de: US2025379272A1
A method for detecting battery swelling includes: arranging conductors in a region of a battery cell to detect swelling of the battery cell; measuring a capacitance change amount when an arrangement of the conductors changes; and determining whether or not battery swelling has occurred by using a result of the measuring of the capacitance change amount.
Resumen de: US2025379255A1
An electrolyte, a lithium-ion battery including the electrolyte, and an electric device including the lithium-ion battery, where the electrolyte includes metal ions, and the metal ions include at least one of K+, Rb+, and Cs+; where a molar concentration CM of the metal ions in the electrolyte satisfies: 0.03 M≤CM.
Resumen de: US2025379253A1
An electrolyte including a compound of Formula I-A, a compound of Formula I-B, and a compound of Formula I-C:where based on a mass of the electrolyte, a percentage of the compound of Formula I-A ranges from 0.12% to 5.0%; a percentage of the compound of Formula I-B ranges from 0.12% to 5.0%; and a percentage of the compound of Formula I-C ranges from 0.12% to 3.0%.
Resumen de: US2025379221A1
A negative electrode active material and a preparation method therefore, and a related device are disclosed. The negative electrode active material comprises a negative electrode active substance and a coating layer. The coating layer is coated on the surface of the negative electrode active substance, and the coating layer comprises at least one of polymethyl methacrylate, sodium maleate, and oleic acid diethanolamide borate. The cycle performance and the initial coulombic efficiency of batteries are improved.
Resumen de: US2025379235A1
The present disclosure provides a fluoride ion conductor having a perovskite structure with high ionic conductivity, a negative electrode mixture comprising the fluoride ion conductor, and a fluoride ion battery comprising the negative electrode mixture. The fluoride ion conductor of the disclosure has a perovskite structure, and is represented by the following formula (1): Ba1-x-ySrxAyLiF3-y: (1) wherein; A is an alkali metal element selected from among Na, K, Rb and Cs, 0.3<3 1−x−y<1.0, 0≤x<0.4, and 0
Resumen de: US2025379329A1
Lithium-ion batteries, battery modules and battery packs are provided that comprise anti-propagation systems designed to mitigate a thermal runaway condition. A battery module comprises a housing comprising a plurality of lithium-ion battery cells each having a positive terminal and a negative terminal, and a flexible container housing a liquid and positioned adjacent to the positive terminal of at least one of the battery cells. The flexible container comprises a material configured to melt at a temperature at or above a threshold temperature for quenching a thermal runaway event in the battery pack to prevent the thermal runaway from propagating and spreading to other battery cells or modules within the pack. The battery module comprises a reinforcement substrate secured to the flexible container. The reinforcement substrate provides structural rigidity to the flexible container and functions to inhibit thermal runaway eject from passing therethrough to other battery modules within the battery pack.
Resumen de: US2025379333A1
A secondary battery, a battery assembly and an electronic device is provided. The secondary battery includes a housing, an electrode assembly, a pole, and an insulating member. The housing includes an end wall and a sidewall surrounding the end wall. The electrode assembly is disposed inside the housing. The pole is fixed to the end wall and electrically connected to the electrode assembly. The pole includes a columnar part and an inner flange. The columnar part passes through the pole hole, and the inner flange is located inside the housing and extends from the columnar part towards the periphery of the end wall. The insulating member is at least partially located on one side of the end wall facing the interior of the housing. The insulating member includes a first insulator surrounding the columnar part and a second insulator at least partially surrounding the first insulator.
Resumen de: US2025379331A1
Disclosed are a module cover, a battery pack, and vehicle, the module cover having a panel shape having an area that covers all a plurality of battery modules adjacent to one another with a crossbeam interposed therebetween, in which a fixing portion is formed on a portion corresponding to the crossbeam, and the module cover is coupled to the crossbeam by means of the fixing portion.
Resumen de: US2025379332A1
A battery, an electrical apparatus, and an energy storage device and relates to the technical field of batteries. The battery includes a battery cell, a box, and a treatment mechanism. The box is used for accommodating the battery cell. The box has an exhaust hole used for discharging emissions generated by thermal runaway of the battery cell. The treatment mechanism is arranged at the box, and is used for reducing the mass flow of the combustibles in the emissions through the exhaust hole.
Resumen de: US2025379227A1
Electrodes having electrolyte additives and electrochemical cells that cycle lithium ions and include the electrodes are provided. The electrodes include a lithium-rich, manganese-rich layered oxide electroactive material, and an electrolyte including two or more electrolyte additives selected from the group consisting of: a lithium salt additive, a fluorinated ester-based additive, a silicon-based additive, and combinations thereof.
Resumen de: US2025379292A1
A battery being as one aspect of a herein disclosed electricity storage device includes a case main body, an electrode assembly, a first lid body, and a second lid body. The case main body includes a pair of wide width surfaces being opposed to each other, and a pair of narrow width surfaces that are opposed to each other and that are configured to continue to the pair of wide width surfaces. A recessed part configured to elongate along a length direction of the case main body is present at an inner side of at least one narrow width surface of the pair of narrow width surfaces.
Resumen de: US2025379204A1
A paste coating system comprises a dispensing head assembly operatively connected to a coating frame, the dispensing head assembly including one or more dispensing heads configured to dispense paste (thixotropic and/or non-Newtonian) onto a grid with respect to the coating frame, and a ultrasonic transducer adjacent to the one or more dispensing heads configured to regulate viscosity of the paste such that the paste is coated onto the grid uniformly without risking material properties. The paste coating system also comprises a controller configured to automatically control operation of the dispensing head assembly and ultrasonic transducer during coating according to one or more coating profile.
Resumen de: US2025379212A1
A battery cell includes C cathode electrodes, A anode electrodes, and S separators, where A, C, and S are integers. Each of the A anode electrodes includes an annealed aluminum foil layer and a lithium aluminum layer arranged on one side of the annealed aluminum foil layer.
Resumen de: US2025379271A1
A battery system may include a battery pack including a plurality of battery cells, a flexible printed circuit board (FPCB) located on an upper surface of the battery pack and including a first wiring connected to a terminal of the battery pack and a second wiring arranged along a path passing through upper portions of each of the plurality of battery cells, and a battery management system (BMS) including a logic gate that is driven by a first voltage provided from the battery pack through the first wiring and generates an output according to a second voltage provided through the second wiring. Further, the BMS may be configured to determine whether the battery pack is abnormal according to the output of the logic gate.
Resumen de: US2025379209A1
A drying method for a lithium battery and a lithium battery are provided, including: step 1: placing a cell to be dried in an oven; Step 2: performing the following drying processes for a plurality of rounds: adjusting a temperature and a vacuum level in the oven, where the temperature and vacuum level are readjusted in the oven when performing the drying processes for a next time, and compared to the drying processes in a previous time, the temperature in the oven is decreased in a stepwise manner, and the vacuum level in the oven is increased in a stepwise manner; and step 3: performing a moisture test on the cell to be dried.
Resumen de: US2025379328A1
A battery pack case of the present disclosure includes a base plate forming a surface of the battery pack case and having a through-hole formed to communicate an internal space of the battery pack case with an outside, an external plate spaced apart from an outer surface of the base plate and configured to block the through-hole from being exposed to the outside and to define a separation space between the base plate and the external plate, and a venting valve provided on the external plate to selectively discharge a fluid from the separation space.
Resumen de: US2025379330A1
Discussed is a battery pack including a battery cell stack having a plurality of battery cells stacked in a first direction, a barrier layer disposed on the battery cell stack, the barrier layer having an inner surface facing the battery cell stack, a first refractory part positioned on an outer surface of the barrier layer that is opposite to the inner surface of the barrier layer, and a venting part that extends through the first refractory part. The barrier layer is configured to be fractured or melted from pressure or heat generated in the battery cell stack to open the venting part to allow at least one of heat, gas and flames to pass from the battery cell stack through the venting part. The first refractory part is at the barrier layer.
Resumen de: US2025379327A1
The present disclosure provides a battery pack, etc. that can ensure excellent safety when a thermal event occurs. A battery pack according to one aspect of the present disclosure may include a plurality of battery cells each having an electrode lead; a cell cover configured to at least partially surround at least some of the plurality of battery cells; and a busbar frame assembly configured to be electrically connected to the electrode lead and coupled to at least one side of a cell cover, thereby blocking flame discharge in a particular direction.
Resumen de: US2025379325A1
A venting cover for a battery module, the venting cover configured to be coupled to one side surface of the battery module and cover the battery module. The venting cover includes venting channels. Each venting channel includes a channel shape extending in a longitudinal direction, an inflow hole configured to be directed toward a battery cell embedded in the battery module, a discharge hole located at an end of the each venting channel, each venting channel being configured such that a venting material vented from the battery cell is introduced into the inflow holes, flows in the longitudinal direction, and is discharged through the discharge holes, and a support channel located between adjacent venting channels of the plurality of venting channels, each support channel extending in the longitudinal direction, and having a closed cross-section, each support channel being configured to support the venting channels.
Resumen de: US2025379324A1
A battery, an electrical device, and an energy storage device. The battery includes: a battery cell, a first wall of the battery cell being provided with a pressure relief mechanism; an attachment component, a first surface of the attachment component being attached to the first wall by an adhesive; an isolation component connected to the attachment component and configured to prevent the adhesive from being applied between the attachment component and the pressure relief mechanism; and a protective component connected to a surface of the isolation component facing away from the pressure relief mechanism to protect the isolation component; where the attachment component is provided with a first through hole corresponding to the position of the pressure relief mechanism.
Resumen de: US2025379205A1
The invention relates to lithiated mixed metal compositions having ultrathin film coatings of varying thicknesses on lithium ion sites and on metal oxide sites, wherein the thickness of the ultrathin film at least partially covering the metal oxide sites is greater than the thickness of the ultrathin film at least partially covering the lithium ion sites. Also disclosed is a method for forming the compositions, comprising selectively coating one area of a multi-component substrate. Materials such as mixed metal oxides, for use in lithium battery electrodes, may be improved by a coating which preferentially deposits onto one or more elements in the mixed material but not another.
Resumen de: US2025379003A1
An electrochemical device includes a positive electrode containing a positive electrode active material reversibly doped with anions, a negative electrode containing a negative electrode active material reversibly doped with lithium ions, and an electrolytic solution containing a solvent and a lithium salt. The lithium salt includes an imide-based lithium salt, and the positive electrode active material contains a porous carbon material. A total surface functional group amount F (meq/g) per unit weight of the porous carbon material and an area S (nm2) of a circle having an average pore diameter of the porous carbon material as a diameter thereof satisfy a relationship of 0.01≤F/S≤0.20.
Resumen de: US2025379004A1
An apparatus is disclosed that includes an active storage layer including: a network of carbon nanotubes defining void spaces; and a carbonaceous material located in the void spaces and bound by the network of carbon nanotubes. In some cases, the active layer provides energy storage, e.g., in an ultracapacitor device.
Nº publicación: WO2025251685A1 11/12/2025
Solicitante:
EVE ENERGY CO LTD [CN]
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Resumen de: WO2025251685A1
Provided in the present application are a battery case and a multi-layer battery system. The multi-layer battery system comprises a battery case, an electrically conductive assembly and a plurality of battery cell assemblies (20), wherein the battery case comprises a bottom protection plate (11), a case cover (13), and a case body, which is connected to the bottom protection plate (11) and the case cover (13), the case body comprising at least two stacked assembly cases (12), and openings being provided at the upper and lower ends of the assembly cases (12); the plurality of battery cell assemblies (20) are stacked, and the battery cell assemblies (20) are arranged in each of the assembly cases (12); and the electrically conductive assembly is arranged in the battery case, and is configured to electrically connect the plurality of battery cell assemblies (20).
BOPI
Sede Electrónica
