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1797
resultados
Última actualización
12/10/2025 [07:12:00]
Resultados 1200 a 1225 de 1797
Resumen de: US2025309265A1
The application provides a composite lithium manganese iron phosphate positive electrode material, and a preparation method and application thereof. The preparation method comprises the following steps: (1) mixing a metal salt solution and an organic ligand solution, and carrying out ultrasonic treatment to obtain a MOF solution; (2) mixing a lithium manganese iron phosphate powder with the MOF solution obtained in step (1), and grinding to obtain a mixed material; (3) calcining the mixed material obtained in step (2) to obtain the composite lithium manganese iron phosphate positive electrode material. The application can effectively improve the electron and ion transmission capability of the LMFP, and solve the problem of poor LMFP cycle stability in related art.
Resumen de: US2025309241A1
Provided is an electrode composite material for a secondary battery that can satisfy both the electronic conductivity and the ionic conductivity at a high level and thus effectively increase the battery characteristics. An electrode composite material for a secondary battery contains a positive-electrode active material and a conductive agent, the positive-electrode active material containing: (i) at least one transition metal element selected from the group consisting of Cr, Fe, Mn, Co, Ni, Ti, and Nb; (ii) at least one element selected from the group consisting of P, Si, and B; and (iii) an element consisting of O, the conductive agent containing a fibrous carbon.
Resumen de: US2025309482A1
Provided are a battery module and an energy storage battery pack, relating to the field of energy storage. The battery module includes at least two battery cell groups, and at least one connecting member. Each respective battery cell group includes an output connector, and a plurality of battery cells arranged sequentially in a first direction, each battery cell has two electrodes, the plurality of battery cells includes an outermost battery cell having an electrode as an output electrode, the output connector includes a first electrical connection and a second electrical connection that are integrally formed, the first electrical connection is in electrical contact with the output electrode, and the first electrical connection has a material different from a material of the second electrical connection. Two ends of each respective connecting member are in electrical contact with second electrical connections of output connectors of respective two battery cell groups respectively.
Resumen de: US2025309479A1
Embodiments of this application provide an electrode assembly, a battery cell, a battery, an electric device, and a method for manufacturing a separator, and pertain to the field of battery technologies. The electrode assembly includes a positive electrode plate, a negative electrode plate, and a separator, and the separator is disposed between the positive electrode plate and the negative electrode plate; and the separator includes a first section, a second section, and a third section arranged sequentially in a width direction of the separator, and a porosity of the second section is less than both a porosity of the first section and a porosity of the third section. The electrode assembly provided by the embodiments of this application includes a separator with different porosities in different sections, which can alleviate precipitation of metal ions in the electrode assembly.
Resumen de: US2025309475A1
A battery cell comprises: a housing, comprising a housing cover and a housing body; a battery cell assembly, comprising an active substance-coated part; and a support arranged at the end of the active substance-coated part distal to the opening of the housing body and fitting the battery cell assembly. The support is provided with a body part and an extension part arranged circumferentially on the body part. The projection of the body part on the plane of the housing cover is within the projection of the active substance-coated part on the plane of the housing cover, and the projection of the extension part on the plane of the housing cover is located outside the projection of the active substance-coated part on the plane of the housing cover.
Resumen de: US2025309474A1
A secondary battery has: an electrode module including an electrode laminated body having a plurality of positive electrode layers and a plurality of negative electrode layers laminated via a separator; an exterior member encasing the electrode module; and a metal member that is higher in surface hardness and greater in surface roughness than an outer surface at both ends of the electrode laminated body of the electrode module in a laminating direction and an inner surface of the exterior member, the metal member being provided between the electrode module and the exterior member.
Resumen de: US2025309421A1
An end cover assembly, an energy-storage apparatus, and an electricity-consumption device are provided. The end cover assembly includes an end cover, an upper plastic member, and a terminal post. The end cover has a first surface. The terminal post includes a terminal-post body and a flange connected to one end of the terminal-post body. The end cover further defines a mounting hole. The protrusion portion protruding from the first surface surrounds the mounting hole and has an end surface. The upper plastic member includes an upper-plastic-member body and a lug. The lug protrudes from an edge of a step surface of the upper-plastic-member body away from a center of the upper plastic member. The upper-plastic-member body and the lug cooperatively define a terminal-post through-hole for the terminal post to pass through. A surface of the flange positioned facing towards the terminal-post body abuts against the step surface.
Resumen de: US2025309422A1
A cylindrical battery comprises an outer case can, an electrode body that is accommodated in the outer case can, and a sealing body that covers an opening portion of the outer case can. The outer case can comprises: a bottom plate portion; a cylinder portion that is connected to the bottom plate portion via an annular corner portion that is positioned outward in the radial direction, and extends in the axial direction; and a rolled-back portion that is connected to an end portion of the cylinder portion that is on the opposite side from the corner portion in the axial direction. The sealing body comprises a rolled-back portion that has an end portion on the outside in the radial direction, the end portion being secured to the rolled-back portion.
Resumen de: US2025309409A1
A battery device has a housing, a core structure arranged in the housing, a first interior space in the housing configured for a cooling fluid to flow through, a second interior space in the housing, a phase change material and at least one battery cell. The core structure separates the first interior space from the second interior space. The core structure has a wall which is configured substantially in the form of a triple periodic minimum surface. The phase change material is arranged in the second interior space. The at least one battery cell is arranged in the first interior space or the second interior space.
Resumen de: US2025309666A1
A method for power management of a battery of a parked vehicle includes: storing a charging state of the battery and a point in time at which an engine of the vehicle is turned off, by a first processor included in a battery management unit; inducing the battery management unit to have a sleep mode, by the first processor; monitoring a state of the battery, by a second processor included in a controller; transmitting a wake-up signal to the battery management unit, by the second processor when a specific event occurs; inducing the battery management unit to have a wake-up mode, by the first processor; and deriving a charging rate of the battery, by the first processor.
Resumen de: US2025309464A1
A battery module may include a cell stack comprising stacked pouch-type battery cells, a bus-bar frame assembly configured to electrically connect the stacked pouch-type battery cells, a module case configured to accommodate the stacked pouch-type battery cells, and a venting guide member attached to a cell terrace of a pouch case heat-fused in a stacked pouch-type battery cell of the stacked pouch-type battery cells and configured to make a hole in the cell terrace. In addition, a battery pack may include the battery module.
Resumen de: US2025309257A1
The present application relates to the technical field of sodium-ion batteries, in particular to a sodium ion battery cathode material, a preparation method thereof, and a sodium ion battery, in an XRD spectrogram of the cathode material, the characteristic diffraction peak A of (003) crystal plane and the characteristic diffraction peak B of (104) crystal plane are arranged at 2θ of 15-19° and 39-44°, respectively; wherein the microcrystalline size DA of the characteristic diffraction peak A and the microcrystalline size DB of the characteristic diffraction peak B satisfy the following condition: 1.3≤DA/DB≤2.5, wherein DA and DB correspond to the microcrystalline sizes of the (003) crystal plane and the (104) crystal plane in the perpendicular line direction, respectively.
Resumen de: US2025309254A1
A lithium-sodium composite manganese-based material and a preparation method thereof, a positive electrode plate, a secondary battery, and an electric apparatus. The lithium-sodium composite manganese-based material includes LitNayLixNiaCobMncMaApOg, where 0
Resumen de: US2025309258A1
The present disclosure relates to the technical field of lithium-ion batteries, and particularly, to a multi-element cathode material, a preparation method thereof, a positive electrode plate, and a lithium-ion battery. The multi-electrode material is composed of secondary particles agglomerated by primary particles. A ratio of a total cross-sectional area of the primary particles with more than 5 grain boundaries to a cross-sectional area of the secondary particles is greater than or equal to 3:4. A porosity on a cross-section of the secondary particles is less than or equal to 2%. A grain boundary is a contour line of an interface between the primary particles with the same structure but different orientations on the cross-section of the secondary particles and a length of the grain boundary is greater than or equal to 0.1 μm.
Resumen de: US2025309255A1
Provided is a nickel-containing hydroxide coated with cobalt, having a coating layer containing cobalt oxyhydroxide formed on a nickel-containing hydroxide, in which an average circularity of particles having particle diameters equal to or more than a particle diameter at a cumulative volume percentage of 50% (D50) within a range of 0.900 or more and 0.990 or less.
Resumen de: US2025309267A1
A negative electrode of the present disclosure contains a negative electrode active material having an average particle size of 2 μm or more and 25 μm or less, and a proportion of secondary particles of 50%, and a tortuosity is 1 or more and 20 or less, and a migration index is 1.0 or more and 1.6 or less.
Resumen de: US2025309469A1
An electrode assembly, a battery, and an electricity-consumption device are provided. The electrode assembly includes a negative electrode, a separator, and a positive electrode. The separator is disposed on one side of the negative electrode, the separator includes a substrate and an adhesive layer, and the adhesive layer is disposed on a surface of the substrate. The adhesive layer includes first polymers, and the first polymers are copolymers of vinylidene fluoride and hexafluoropropylene. The positive electrode is disposed on one side of the separator away from the negative electrode, and the positive electrode includes a current collector layer and an active material layer that are stacked. The active material layer is disposed on a surface of the current collector layer and is disposed facing the adhesive layer. The active material layer includes active particles and second polymers.
Resumen de: US2025309500A1
A battery cell, a battery, and an electrical device are provided. The battery cell includes a housing and a core assembly. The housing has a first pole positioned within a mounting hole, with a first soldering surface. The core assembly comprises an active material coating portion and a conductive portion, which includes a second soldering surface in contact with the first soldering surface. A portion of the second soldering surface is soldered to the first soldering surface via a soldering portion. When projected onto a plane at the mounting hole's cross-section, the outer contour of the second soldering surface is within the outer contour of the first soldering surface. This design improves fast charging performance, reliability, and stability.
Resumen de: US2025309470A1
A non-aqueous electrolyte secondary battery comprises an electrode body formed by winding a positive electrode and a negative electrode such that a separator is interposed therebetween; an electrolyte solution; and an outer can for accommodating the electrode body and the electrolyte solution. The separator has a base material layer and a filler layer formed at least on one surface of the base material layer. The filler layer contains inorganic particles and resin particles having a larger average particle diameter than the inorganic particles, and has protruding parts formed from the resin particles. The protruding parts protrude from the inorganic particle layer that is formed of the inorganic particle layer excluding the protruding parts of the filler layer. When the surface of the filler layer is observed by a scanning electron microscope, 10-35 resin particles forming the protruding parts are detected in a range of 100 μm×100 μm.
Resumen de: US2025309489A1
The busbar holder is mounted to the cell stack. The cell stack includes a plurality of battery cells arranged side by side in the X direction. Each battery cell includes tab leads protruding in the Y direction. As viewed in the mounting state of mounting the busbar holder to the cell stack, the busbar holder is configured as follows: A plurality of insertion portions, into which the tab leads are insertable in the Y direction, are formed side by side in the X direction in the busbar holder. Busbars for electrically connecting the tab leads are held between the insertion portions so as to be movable in the X direction relative to the busbar holder.
Resumen de: US2025309476A1
A battery cell includes a housing, an electrode assembly, an insulating member, and a patch. The electrode assembly is accommodated in the housing. The insulating member is arranged on an outer side of the electrode assembly, and the insulating member has a first outer surface on a side facing away from the electrode assembly. The patch is attached to the first outer surface and covers a part of the first outer surface, the patch has a second outer surface on a side facing away from the insulating member, and surface roughness of at least a partial region of the second outer surface is greater than surface roughness of the first outer surface.
Resumen de: US2025309483A1
A battery module includes a housing including an accommodation space in which a cooling fluid is accommodated; a cell assembly including a plurality of battery cells stacked in a first direction in the accommodation space and each including a lead tab; and a busbar assembly disposed to face the cell assembly in the accommodation space, and including a plurality of busbars electrically connected to the plurality of battery cells, and a support plate supporting the busbar, wherein the busbar includes a plurality of slit holes into which the lead tab is inserted; and at least one busbar hole disposed between the plurality of slit holes and allowing cooling fluid to flow therethrough.
Resumen de: US2025309492A1
The present invention relates to a battery assembly for pressing a battery cell, including: a plurality of battery cells; a presser including a plurality of pressing plates provided on outermost portions of a plurality of battery cells, and among them, separating a space in which a plurality of battery cells are installed, and performing pressing on a plurality of battery cells, and pressing frames for connecting the pressing plates on an upper portion and a lower portion of the a plurality of pressing plates; and a driver for moving the presser so as to press a plurality of battery cells to the pressing plates, wherein all the pressing plates or the pressing plates excluding one pressing plate provided on one outermost portion are movable in a horizontal direction to a pressing direction while connected to the pressing frames, and a magnet is included on one pair of pressing plates provided on outermost portions on respective sides of the pressing plates so that opposite polarities may face each other, and a shielding film is formed on a portion exposed to an outside on the sides excluding an inside that faces battery cells on the one pair of pressing plates.
Resumen de: US2025309488A1
A cell stack assembly includes a cell stack having a plurality of cells stacked with electrode leads extending from both sides thereof; a busbar frame including a busbar electrically connected with each of the electrode leads, and attached to a front and rear surface of the cell stack, respectively; a first side beam and a second side beam coupled to one side end and other side end of the busbar frame respectively to support one and another one side surface of the cell, respectively. The first side beam includes a supporting part supporting one side of the cell stack; and a plate-shaped pressing part formed at an end of the supporting part and perpendicular to the supporting part. A battery pack including a pair of the battery cell assemblies is also provided.
Nº publicación: US2025309471A1 02/10/2025
Solicitante:
SK ON CO LTD [KR]
SK ON CO., LTD
Resumen de: US2025309471A1
A separator for a secondary battery includes a substrate, and a coating layer formed on a surface of the substrate and including inorganic particles. The separator has a thermal shrinkage coefficient in the range of 5 kPa to 30 kPa. The thermal shrinkage rate, which is defined as a ratio of a TD thermal shrinkage rate of the separator measured after storage at 130° C. for 1 hour to a TD thermal shrinkage rate of the substrate measured after storage at 130° C. for 1 hour, is 0.3 to 0.5.
BOPI
Sede Electrónica
