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1373
resultados
Última actualización
13/12/2025 [07:31:00]
Resultados 375 a 400 de 1373
Resumen de: FR3162919A1
Dispositif de refroidissement pour une batterie électrique, comprenant : - une enveloppe (32) souple formée de deux feuillets (36) de matériau souple s’étendant en regard l’un de l’autre, l’enveloppe (32) présentant des régions de soudure (38) dans lesquelles les feuillets (36) sont solidaires l’un de l’autre et des régions de séparation (40) dans lesquelles les feuillets (36) sont aptes à s’étendre l’écart l’un de l’autre, - au moins un conduit (52) de circulation de fluide s’étendant entre les feuillets (36) à travers au moins l’une des régions de séparation (40), caractérisé en ce que le dispositif de refroidissement (30) comprend en outre : - une structure de support fixée à l’enveloppe (32), la structure de support comprenant une plaque (54) semi-rigide en contact avec l’enveloppe (32) selon une direction de fixation, ladite plaque (54) semi-rigide s’étendant perpendiculairement à la direction de fixation, la plaque (54) semi-rigide étant apte à se déformer en compression selon la direction de fixation pour compenser une déformation de l’enveloppe (32) sous l’effet d’une pression interne de circulation de fluide dans l’au moins un conduit (52). Figure à publier avec l’abrégé : 4
Resumen de: US2025372774A1
A cylindrical secondary battery is provided and including: an electrode wound body having a structure in which a band-shaped positive electrode and a band-shaped negative electrode are stacked and wound with a separator interposed therebetween; a battery can accommodating the electrode wound body with one end portion being open while the electrode wound body is accommodated; and a battery lid provided at the one end portion of the battery can and having two or more opening portions, wherein the two or more opening portions have a non-overlapping form during rotation that does not overlap the two or more opening portions before rotation when the two or more opening portions are rotated by more than 0° and less than 360° about an axis of a cylindrical shape of the secondary battery in top view, and the battery lid has a cleavage impression at any one of joints between two adjacent opening portions out of the two or more opening portions.
Resumen de: US2025372770A1
A fuel cell system includes a battery and a fuel cell stack, each configured to output electrical energy to satisfy total final required power, and a controller configured to perform a method of controlling the fuel cell system. The controller may be configured to calculate a required power proportion of the fuel cell stack to satisfy the final required power, to calculate a final power proportion of the stack by calibrating the required power proportion of the fuel cell stack using a power adjustment value depending on a state of health (SoH) of the fuel cell stack, and to control power generation of the fuel cell stack according to the calculated final power proportion.
Resumen de: US2025372842A1
A cylindrical battery is provided and including a top cover, and a safety valve, wherein the safety valve has a safety cover and a stripper disk positioned inward in a battery axial direction from the safety cover, and a predetermined portion of the safety cover positioned between a portion where the safety cover and the top cover are in contact with each other and a portion where the safety cover and the stripper disk are in contact with each other is an inclined portion inclined inward in a battery axial direction with respect to a contact surface where the safety cover and the top cover are in contact with each other.
Resumen de: US2025373056A1
The present disclosure relates to a device comprising: a first terminal, a second terminal, a third terminal, a first load unit, a first sensor unit, and a second load unit, wherein the device is configured to be coupled to a first group of cells of a battery via the first and second terminals, wherein the device is configured to be coupled to a second group of cells of a battery via the second and third terminals, wherein a first circuit string of the device extends between the first and second terminals, wherein the first load unit is integrated into the first circuit string, wherein the first sensor unit is configured to measure a first current in the first circuit string, wherein a second circuit string of the device extends between the second and third terminals, wherein the second load unit is integrated into the second circuit string, and wherein the device is configured to control the second load unit based on the first current such that the second load unit causes a second current in the second circuit string corresponding to the first current. The present disclosure also relates to a system comprising the device and the battery pack. Further, the present disclosure also relates to a method for the device.
Resumen de: US2025372809A1
Disclosed is a thermal runaway management Li-ion battery module, used in a chassis, comprising: a battery pack, including a plurality of cells; a one-way valve, having a one-way valve flow path and flow separators; a thermally expandable foam member, arranged in the one-way valve flow path; and a flow-limiting member, having a circuitous flow path. The positive terminals of the cells point toward the one-way valve flow path and the thermally expandable foam member, such that the high-temperature substances released by a thermally-runaway cell will enter the one-way valve flow path and cause the thermally expandable foam element to expand and block the one-way valve flow path. This prevents flames and sparks from spreading to the exterior of the chassis, thereby ensuring the safety of surrounding equipment and personnel.
Resumen de: US2025372655A1
An adhesion substance is provided, along with an adhesive composition, a positive electrode plate, a secondary battery, and an electric apparatus. The adhesion substance includes an adhesive comprising structural units A, B, C, and D. Structural unit A has formula (1) and is at least partially crosslinked with structural unit D, which is selected from formula (9). Structural unit B is selected from formulas (2) (6), and structural unit C is selected from formula (7) or (8), where m2 and m2 are integers from 1 to 20. Each structural unit is independently defined, and specific crosslinking between A and D enhances adhesion performance. The adhesive composition may be used in electrochemical devices to improve bonding and durability.
Resumen de: US2025372687A1
Method for laminating strips of material, in particular for the production of electrical energy storage devices, the strips comprising a first separator strip and at least a first electrode strip, the first separator strip comprising a first face and a second face, the method comprising the sequential steps of: conveying the first separator strip along a feeding path in a first direction; heating at least the first face of the first separator strip, the first face of the first separator strip being configured to face a respective face of the first electrode strip; introducing the first separator strip and the first electrode strip in a lamination unit; and cold laminating, via the lamination unit, the first separator strip and the first electrode strip together.
Resumen de: US2025372773A1
A cell includes a housing, an electrode core and a cover plate assembly. The electrode core is disposed within the housing, and the cover plate assembly is configured to close an opening of the housing. The cover plate assembly includes a support body, a groove is provided in the support body, and the area formed and enclosed by the inner ring of the groove is defined as S, where S satisfies: S=(K×C)/(T×V). K is a gas production coefficient of the electrode core, C is a capacity of the electrode core; T is pressure-relief time; and V is a pressure-relief speed.
Resumen de: US2025372702A1
Provided are a wide-temperature-range solid-state electrolyte, a preparation method thereof and use thereof in solid-state lithium metal batteries. The preparation method includes: dissolving a lithium salt and a magnesium salt in a solvent to obtain a mixed salt solution; and mixing the mixed salt solution with an ammonia fluoride solution, subjecting a resulting mixture to reaction, and subjecting a resulting reaction product to centrifugation, washing, and drying in sequence to obtain magnesium-doped lithium fluoride nanoparticles; and mixing the magnesium-doped lithium fluoride nanoparticles, a liquid plasticizer, a polymer monomer and a thermal initiator to obtain a liquid precursor, and subjecting the liquid precursor to curing to obtain the wide-temperature-range solid-state electrolyte, where the polymer monomer is a mixture of ethoxylated trimethylolpropane triacrylate and hexafluorobutyl methacrylate.
Resumen de: US2025372771A1
A battery cell, a battery, and an electrical device are described. The battery cell includes a case and an insulating protective layer, the insulating protective layer being disposed on an inner wall of the case. In the battery cell provided in the embodiments, the insulating protective layer is disposed on the inner wall of the case of the battery cell, where the insulating protective layer can separate the case from the electrolyte solution inside the case, so as to reduce the probability of contact between the case and the electrolyte solution, thereby lowering the probability of corrosion breakdown of the case.
Resumen de: US2025368056A1
This disclosure provides an improved universal interchangeable battery for electric vehicles forming part of a battery swapping ecosystem that includes electric vehicles, swappable batteries, a charging/swap station, a battery adaptor for reliable charging and communication, and a mobile application for managing battery swapping within a fleet and a network of charging stations, enabling efficient and user-friendly battery exchanges.
Resumen de: US2025372802A1
A secondary battery according to an embodiment of the present disclosure may include: a housing having an accommodation space; and a venting portion disposed in the housing and openable by pressure of the accommodation space, and the venting portion may include: a venting cover having one surface facing the accommodation space; a notch portion formed in the venting cover; and a protrusion portion protruding toward the notch portion.
Resumen de: US2025372696A1
Provided is a lithium secondary battery, wherein the lithium secondary battery includes a first electrode, a second electrode spaced apart from the first electrode, and a solid electrolyte disposed between the first electrode and the second electrode. The solid electrolyte includes a fiber including polytetrafluoroethylene having a number average molecular weight of 500 kg/mol to 20,000 kg/mol, and a plurality of sulfide particles. The fiber is in contact with at least some of the sulfide particles.
Resumen de: US2025372692A1
An embodiment of the present disclosure provides an electrode assembly that includes a first electrode, a separator, and a second electrode and is wound with the first electrode, the separator, and the second electrode stacked, including: each of the first electrode and the second electrode includes a substrate; and an active material layer disposed on at least a portion of the substrate, and a portion of the substrate to which the active material layer is not applied is bent in an opposite direction to a wound center.
Resumen de: US2025372694A1
A cathode active material for a lithium secondary battery according to embodiments of the present disclosure includes lithium-metal oxide particles having a sphericity of 0.96 or less and an elongation of 0.25 to 0.5. The elongation is calculated as (1−b/a). Here, a denotes the length of the major axis of the lithium-metal oxide particle in a cross-sectional image of the lithium-metal oxide particles observed using SEM, and b denotes the length of the minor axis of the lithium-metal oxide particle in the cross-sectional SEM image of the lithium-metal oxide particles.
Resumen de: US2025372775A1
A secondary battery according to various embodiments of the present disclosure includes a battery can configured to accommodate an electrode assembly through an open end; a cap plate coupled to the open end; and a sealing gasket interposed between the battery can and the cap plate, wherein the cap plate includes a flat part and a raised part protruding from the flat part toward at least one axial direction of the battery can.
Resumen de: US2025372689A1
An apparatus and a method for manufacturing a secondary battery involve an electrode assembly being horizontally inserted into a case in a state in which the case and the electrode assembly are placed horizontally in order to prevent deformation of related parts such as a current collector due to the weight of the electrode assembly. The apparatus for manufacturing a secondary battery includes a horizontal insert unit in which a cap plate is assembled and which horizontally inserts a horizontally mounted electrode assembly into an opening of a horizontally mounted case.
Resumen de: US2025372637A1
A positive electrode active material with both high capacity and safety is provided. The secondary battery includes a positive electrode. The positive electrode includes a positive electrode active material. The positive electrode active material includes lithium cobalt oxide containing magnesium, nickel, and aluminum. When the positive electrode is analyzed by powder X-ray diffraction using CuKα1 as a radiation source at a charge depth greater than or equal to 0.8, the positive electrode active material has diffraction peaks at 2θ of 19.30±0.20° and 2θ of 45.55±0.10°. The positive electrode active material includes a first region having a surface parallel to a (001) plane and a second region having a surface parallel to a plane intersecting with the (001). A nickel concentration in the first region is higher than a nickel concentration in the second region.
Resumen de: US2025372640A1
A method of producing a positive electrode active material includes calcinating a mixture of a nickel-containing compound and a lithium compound introduced into a furnace of a rotary kiln at 750 to 1000° C. under an oxygen atmosphere. The nickel-containing compound is at least one of a nickel-containing hydroxide and a nickel-containing oxide. A layer of yttrium-chromium composite oxide is formed on an outermost surface of an inner wall of the furnace.
Resumen de: US2025372627A1
The cathode active material includes first particles and second particles. The first particle has a maximum Feret diameter of 1 μm or greater. The second particle has a maximum Feret diameter less than or equal to 50 nm. The second particle is attached to the surface of the first particle. The second particles are deposited in an amount of 0.24 or more per 1 μm2.
Resumen de: US2025372620A1
This non-aqueous electrolyte secondary battery comprises a negative electrode. The negative electrode has a negative electrode mixture layer formed on the surface of a negative electrode current collector. The negative electrode mixture layer has a first negative electrode mixture layer and a second negative electrode mixture layer. The first negative electrode mixture layer and the second negative electrode mixture layer include a negative electrode active material. The negative electrode active material in the first negative electrode mixture layer has two negative electrode active materials M1 and M2 of different volume-average particle size. The ratio (A2/A1) of the volume-average particle size (A2) of the negative electrode active material M2 to the volume-average particle size (A1) of the negative electrode active material M1 is in the range of 0.16-0.5.
Resumen de: US2025372638A1
An electrode active material in the present disclosure has at least one O2-like structure selected from among an O2-type structure, a T#2-type structure, and an O6-type structure, and has a chemical composition shown as LiaNabNix-pCOy-qMnz-rMp+q+rO2(0
Resumen de: US2025372593A1
A method for producing a coated substrate is described that includes forming an aluminium oxide hydroxide slurry by simultaneously feeding streams of an aluminium nitrate solution and a basic solution, such as an ammonia solution, into a liquid over a reaction period, while maintaining an elevated temperature and a controlled pH; allowing a substrate to contact the slurry to thereby form an aluminium oxide hydroxide coating on the substrate; and separating the coated substrate from the liquid.
Nº publicación: US2025372740A1 04/12/2025
Solicitante:
ACE GREEN RECYCLING INC [US]
ACE GREEN RECYCLING INC
Resumen de: US2025372740A1
Disclosed are approaches for recycling LIBs where lithium is recovered before the other node metals in order to increase the amount of lithium recovered. For such approaches, the other node metals need not be further refined or recovered and, despite the small loss of these other node metals as impurities in the first-recovered lithium, the available alternative dispositions for these other node metals—such as in the form of multi-metal-oxides (MMO)—can render the recovery of lithium before the other node metals to be advantageous. Several such approaches may feature nitration, roasting, lithium trapping, and/or other innovative features to facilitate greater and purer recoveries of the target LIB components.
BOPI
Sede Electrónica
