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1601
resultados
Última actualización
20/03/2026 [07:15:00]
Resultados 375 a 400 de 1601
Resumen de: US20260074211A1
A positive electrode for a secondary battery including a positive electrode current collector, and a positive electrode active material layer supported on the positive electrode current collector. The positive electrode active material layer includes active material particles and an oxide film covering at least part of surfaces of the active material particles. The active material particles include a lithium-containing transition metal oxide, and the oxide film contains an oxide of a first element other than nonmetal elements. When a thickness of the positive electrode active material layer is denoted by TA, Tb<Tt is satisfied, where the Tb and the Tt are thicknesses of the oxide film at a position of 0.10TA and at a position of 0.90TA, respectively, from a surface of the positive electrode current collector in the positive electrode active material layer.
Resumen de: US20260074193A1
An anode active material for a lithium secondary battery according to an embodiment of the present invention includes a first anode active material and a second anode active material, each of which includes a carbon-based active material and has a crystallite size in a range from 50 nm to 60 nm. An XRD orientation ratio of the first anode active material is in a range from 0.9 to 1.2, and an XRD orientation ratio of the second anode active material is in a range from 1 to 5. High-temperature storage and life-span properties are improved while maintaining high capacity using the combination of the first and second anode active materials.
Resumen de: US20260074310A1
A secondary battery test apparatus and a test method using the same are disclosed. According to one aspect of the present disclosure, there is provided a secondary battery test apparatus including an outer case having an inner chamber, and an inner case disposed in the inner chamber, wherein the inner case includes a plurality of partition spaces, in which each secondary battery, which is a test subject, is disposed, and a barrier cover that is fastened to a barrier, which is a test subject, between adjacent partition spaces to seal a space between the barrier and the inner case between the adjacent partition spaces.
Resumen de: US20260074330A1
A battery housing includes a shell and a cover plate. The shell includes a side frame, and the side frame includes a first open end. The cover plate is arranged at the first open end. One of the shell and the cover plate is provided with an annular recessed portion, and the other one of the shell and the cover plate is matched with the recessed portion. When the cover plate covers the first open end of the shell, the cover plate and the shell are limited by matching by means of the recessed portion, to prevent the cover plate from moving relative to the shell during welding.
Resumen de: US20260074324A1
Disclosed is a composite substrate for a rechargeable lithium battery including a support layer having a first surface and a second surface that are opposite to each other, a first metal layer on the first surface, and a second metal layer on the second surface. The support layer includes a plurality of first through parts penetrating the first surface and spaced apart from each other along a first direction, and a plurality of second through parts penetrating the second surface and spaced apart from each other along the first direction. The plurality of first through parts and the plurality of second through parts are alternately disposed along the first direction, and the first direction is substantially parallel to the first surface.
Resumen de: US20260074325A1
A secondary battery, a battery module, and/or a method for manufacturing the secondary battery are disclosed. A secondary battery includes a case accommodating an electrode assembly, and a terminal coupled to the case, and the terminal includes a softened region.
Resumen de: US20260074337A1
A battery clip for retaining a battery to a circuit carrier is disclosed along with an assembly including a circuit carrier having a plurality of flexible tabs. The battery clip includes a plurality of slots configured to mate with and receive the flexible tabs of the circuit carrier such that the battery clip and the circuit carrier are secured together such that a first terminal of a retained battery physically contacts and is in electrical communication with the circuit carrier's first pad, the battery clip further comprising one or more flexible conductive fingers configured to contact a second terminal of a retained battery to establish an electrical communication between the fingers and the second terminal, and wherein the battery clip includes an electrically conductive material and establishes electrical communication between the fingers and the circuit carrier's second pad.
Resumen de: WO2026051446A1
The present application relates to the technical field of current collectors, specifically to a composite copper current collector and a preparation method therefor. In the present application, a modified polymer film is obtained by means of subjecting a polymer and an active material to heating and melting, extrusion, casting, and biaxial stretching processes; copper layers are formed on the upper and lower sides of the modified polymer film, respectively, using a chemical plating method; finally, an anti-oxidation layer is prepared on the copper layers, thereby obtaining a composite copper current collector. The composite copper current collector prepared by means of the present application realizes one-step preparation of a composite copper current collector, namely a chemical plating method, successfully solving the problems of high energy consumption and low yield caused by physical vapor deposition process in conventional preparation processes. Compared with conventional methods, the performance of the composite copper current collector prepared by the present application is not degraded, while energy consumption is greatly reduced and yield is increased.
Resumen de: WO2026051440A1
The present disclosure relates to the technical field of batteries. Disclosed are a battery cell, a battery device, and an electric apparatus. The battery cell comprises a pole, an electrode assembly, a casing, and a fixing member, wherein the pole is electrically connected to the electrode assembly; the electrode assembly is arranged in the casing; the casing has a first wall; the pole is arranged on the first wall; the fixing member comprises a first flat portion, a transition portion, and a second flat portion; the transition portion is located between the first flat portion and the second flat portion; the first flat portion is engaged with the pole; the second flat portion is connected to the first wall; at least one of the thickness of the first flat portion in the axial direction of the pole, the thickness of the second flat portion in the axial direction of the pole, and the thickness of the transition portion in a direction perpendicular to the axial direction of the pole is greater than 0.8 mm and less than or equal to 1.5 mm.
Resumen de: WO2026051355A1
Disclosed is a preparation method for a heteroatom-doped carbon material, comprising the following steps: (S1) uniformly mixing a phenolic monomer, an aldehyde monomer and a non-metal doping source, then pre-polymerizing same to obtain a liquid phenolic resin oligomer, then adding a metal doping source and uniformly mixing same, and then curing same to obtain a solid precursor; (S2) sequentially subjecting the solid precursor to crushing, pyrolysis and carbonization, and then an activation process for pore forming, to obtain a carbon material having a porous structure; (S3) pulverizing the carbon material having the porous structure, placing same into a reactor and introducing a silicon-containing gas, performing silicon deposition, and then subjecting same to stabilization treatment to obtain a silicon-carbon composite material; and (S4) performing carbon coating on a surface of the silicon-carbon composite material to obtain a product heteroatom-doped carbon material. By doping with non-metal and metal heteroatoms in a specific order, the present invention improves the kinetic properties of lithium ions and electrons, inhibits composite material particle breakdown during charging and discharging, and improves interface stability.
Resumen de: US20260070791A1
According to various embodiments of the present invention, a silicon composite may include: pure silicon grains; and a buffer layer coated on the surface of the pure silicon grains. A method for manufacturing the silicon composite according to various embodiments of the present invention may include: a step of pulverizing metallurgical-grade silicon particles; and a step of forming a buffer layer layer on the surface of the pulverized metallurgical-grade silicon grains. An anode for a secondary battery according to various embodiments of the present invention may include the silicon composite. A secondary battery according to various embodiments of the present invention may include the anode.
Resumen de: US20260070790A1
Provided are a negative electrode material and a preparation method therefor, a negative electrode plate and a preparation method therefor, an energy storage device, and an electricity-consumption device. The negative electrode material includes hard carbon. The hard carbon has a porous structure and satisfies: 0.32≤Dv50/1000V≤2.40. Dv50 of the hard carbon is in unit of μm; and V represents a total volume of pores in the hard carbon, in unit of cm3/g.
Resumen de: US20260070789A1
Disclosed is a method for synthesizing lithium iron phosphate using anhydrous amorphous iron phosphate. The method includes the following steps: mixing an anhydrous amorphous iron phosphate, a lithium source, an organic carbon source, and a liquid alcohol to obtain a wet mixture; grinding the wet mixture to obtain a slurry, and subjecting the slurry to spray drying to obtain a lithium iron phosphate precursor powder; and calcining the lithium iron phosphate precursor powder in a protective gas atmosphere to obtain an olivine lithium iron phosphate. An anhydrous amorphous iron phosphate is used as a raw material.
Resumen de: US20260070470A1
A method for controlling fuel cell power generation may comprise: obtaining at least one or more of a vehicle speed limit of a forward driving road, whether there is a gradient and gradient data as forward driving information; calculating a total amount value of expected battery output energy based on the obtained forward driving information; and determining a fuel cell power generation output value in a current driving segment in order to charge or discharge a battery based on the total amount value of the expected battery output energy.
Resumen de: US20260070810A1
The present invention discloses to tungsten doped mixed cationic cathodes for energy devices notably non-aqueous re-chargeable alkali-ion electrochemical cells and batteries and to the process of preparation thereof. More particularly, the present invention discloses to doped cathode active materials of Formula (I) that show a higher capacity and which can able to retains their structure during the entire charging-discharging cycles.
Resumen de: US20260074199A1
Provided in the present application are an electrode sheet and a lithium-ion battery including the same; the active layer of the electrode sheet includes a first layer and a second layer, wherein the first layer is disposed close to the current collector, the second layer is disposed on one side of the first layer which is facing away from the current collector, and the mass percentage of the binder in the first layer is greater than that of the second layer; by redistributing the binder, the peeling force and adhesion are ensured, and simultaneously the migration of the binder is improved; the influence of binder migration on uniformity and conductivity is reduced, thereby, the manufacturability and electrical properties such as energy density of the electrode sheet are improved.
Resumen de: US20260074192A1
The present disclosure relates to a positive electrode for a lithium secondary battery, which includes a current collector film including a resin layer and a metal layer provided on each of both surfaces of the resin layer and a positive electrode mixture layer formed on the current collector film, in which the positive electrode mixture layer contains first positive-electrode active material particles having a median diameter D50 of 10 μm or more and 25 μm or less, second positive-electrode active material particles, and two or more kinds of binders, a median diameter D50 ratio of the second positive-electrode active material particles to the first positive-electrode active material particles is 0.75 or less, and a mass ratio of the first positive-electrode active material particles to the second positive-electrode active material particles in the positive electrode (a content of the first positive-electrode active material particles in the positive electrode/a content of the second positive-electrode active material particles in the positive electrode) is 1.5 or more and 9.0 or less.
Resumen de: US20260074196A1
An embodiment composite negative electrode active material for an all-solid-state battery includes a negative electrode active material including a silicon-based active material and a coating layer including a solid electrolyte and coating a portion of a surface of the negative electrode active material, wherein a ratio (E/T) of a Young's modulus (E) of the solid electrolyte to a thickness (T) of the coating layer satisfies 0.02<E/T<0.06.
Resumen de: US20260074198A1
Embodiments described herein relate to a method comprising soaking a wood in a mild acid, soaking the wood in an iron containing solution, pyrolizing the wood, heat treating the wood to create a graphitized monolith, leaching the graphitized monolith to remove iron remaining in the graphitized monolith, and infiltrating the graphitized monolith with sulfur to create a cathode. Embodiments described herein relate to a method of fabricating a sulfur-carbon composite cathode as shown and described herein. Embodiments described herein relate to a sulfur-carbon composite cathode as shown and described herein.
Resumen de: US20260074188A1
An anodeless all-solid-state battery includes an anode current collector, a composite structure layer positioned on the anode current collector, a solid electrolyte positioned on the composite structure layer, and a cathode positioned on the solid electrolyte, in which the composite structure layer includes a carbon layer including a carbon material, and a metal deposition layer positioned on the carbon layer and including lithiophilic metal particles.
Resumen de: US20260074322A1
A control apparatus controls a ceramic heater module which includes a ceramic heater including a resistive heating element, and a case housing the ceramic heater and having an inlet and an outlet through which a liquid medium flows. The control apparatus obtains, as an outlet temperature, a temperature on an outlet side of the ceramic heater module, and determines whether or not a stop condition is satisfied, on the basis of a temperature difference between a start temperature (the outlet temperature at an energization start time point at which energization of the resistive heating element is started) and a detection temperature (the outlet temperature obtained at one or a plurality of specific time points after the energization start time point). The control apparatus stops the energization of the resistive heating element when it determines that the stop condition is satisfied.
Resumen de: US20260074320A1
The present application provides a battery module and a vehicle. The battery module includes: a battery body, a liquid cooling plate, and connecting tubes. The battery body and the liquid cooling plate are stacked, and the liquid cooling plate includes fluid inlet and outlet ports. Each connecting tube corresponds to a respective one of the fluid inlet and outlet ports, and each connecting tube includes: a connecting tube body, a connecting elbow, and a first connecting flange. In each connecting tube, a first end of the connecting tube body is fixedly connected to the liquid cooling plate at a corresponding one of the fluid inlet and outlet ports, a second end of the connecting tube body is connected to one end of the connecting elbow, and an end of the connecting elbow facing away from the connecting tube body is directly fixed to the first connecting flange.
Resumen de: US20260074334A1
An electric power storage module including: an electrode stack including a plurality of electrodes each including a current collector, the electrodes being stacked along a first direction; a first resin portion provided to the electrode stack such that an internal space is formed between each of the current collectors adjacent in the first direction, the first resin portion sealing the internal space; and a sealing body joined to the first resin portion, in which the first resin portion has an outer surface including: a first end face in the first direction; a second end face opposite the first end face in the first direction; and four outer side faces extending along the first direction such that the first end face and second end face are connected.
Resumen de: US20260074339A1
A battery module according to the present disclosure may include a plurality of battery cells, a cell frame configured to accommodate the plurality of battery cells, and a filler filled between the plurality of battery cells. At least a portion of the cell frame may be recessed to form a leakage prevention groove for receiving the filler. The cell frame may include a frame wall forming a perimeter of the cell frame and a cell accommodation portion provided inside the frame wall to accommodate the plurality of battery cells, and wherein the leakage prevention groove may be provided between the frame wall and the cell accommodation portion. Thus, leakage of the filler may be prevented when the filler is injected. Additionally, where cell frames cell are coupled to each other, it is possible to prevent the filler from leaking between the cell frames.
Nº publicación: US20260074323A1 12/03/2026
Solicitante:
BYD COMPANY LTD [CN]
BYD COMPANY LIMITED
Resumen de: US20260074323A1
Provided are a shell assembly for a battery, a battery, and a power device. The shell assembly includes: a shell, where a first mating surface and a first end surface are formed on an end portion of the shell, and an included angle between the first mating surface and the first end surface is α1; and a cover plate, where the cover plate covers the end portion of the shell and forms a first surface, a protruding portion protruding toward an interior of the shell is formed on the first surface, and a second mating surface adapted to abut against the first mating surface is formed on the protruding portion. An included angle between the second mating surface and the first surface is α2, and α1 and α2 satisfy: α190°.
BOPI
Sede Electrónica
