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1111
resultados
Última actualización
26/01/2026 [07:08:00]
Resultados 725 a 750 de 1111
Resumen de: US20260018754A1
A laminated cell, a prismatic lithium battery and a battery pack are provided. The laminated cell includes a plurality of cell units stacked in sequence along a first direction, each of the cell units includes a positive electrode plate, a separator and a negative electrode plate that are stacked in sequence, and a separator is disposed between two adjacent ones of the cell units. A ratio of a length to a thickness of the positive electrode plate and a ratio of a length to a thickness of the negative electrode plate are respectively and independently selected from 6.3×102 to 9.4×102, and a ratio of a width to the thickness of the positive electrode plate and a ratio of a width to the thickness of the negative electrode plate are respectively and independently selected 6.3×102 to 9.4×102.
Resumen de: US20260018755A1
A battery module (50) includes: a plurality of battery cells (100) stacked in a predetermined direction; and a plurality of lead portions (110) each folded back between at least one battery cell (100) and at least another battery cell (100), wherein an average of tilts of end surfaces of the plurality of lead portions (110) relative to a direction perpendicular to the predetermined direction is equal to or greater than 85.0° and equal to or less than 95.0°.
Resumen de: US20260018752A1
An electrode wound body includes positive and negative electrodes, and a separator between the positive and negative electrodes. The positive electrode includes a positive foil extension extending from a positive electrode foil. The negative electrode includes a negative foil extension extending from a negative electrode foil. The positive electrode, the negative electrode, and the separator are wound to define a spiral including a through hole with a central axis extending through the through hole. The positive and negative foil extensions extend from opposite ends of the electrode wound body. Portions of the positive foil extension include bends that bend towards the central axis so that the portions of the positive foil extension overlap to define a first surface. Portions of the negative foil extension include bends that bend towards the central axis so that the portions of the negative foil extension overlap to define a second surface.
Resumen de: US20260018725A1
A battery pack includes a battery module, an equipment member disposed on the battery module, and a supporting member disposed between the battery module and the equipment member and formed of insulation resin. A busbar having electrical conductivity is disposed in the supporting member, one end of the busbar that has passed through the inside of the supporting member toward the battery module side is connected to the battery module, a connection terminal is provided on the other end of the busbar that has passed through the inside of the supporting member toward the equipment member side, and the connection terminal of the busbar is connected to a connection terminal of the equipment member.
Resumen de: US20260018656A1
A lithium secondary battery according to the embodiments of the present disclosure includes a cathode which includes lithium-metal oxide particles having a compressive fracture strength of 1,500 MPa or more and having a single particle form; an anode disposed opposite to the cathode and including a lithium metal layer, and a solid electrolyte layer interposed between the cathode and the anode and including a sulfide-based solid electrolyte.
Resumen de: US20260018614A1
Anode material, and battery. Anode material includes graphite and carbon layer located on at least part of surface of graphite. Particle surface and particle section of anode material are respectively tested by Raman spectroscopy, peak area ratio of D characteristic peak within range of 1300 cm−1 to 1350 cm−1 to G characteristic peak within range of 1500 cm−1 to 1580 cm−1 is ID/IG, ratio of ID/IG measured on the particle surface is A, and ratio of ID/IG measured on particle section is B, and 1.22
Resumen de: US20260018664A1
A production method includes: heating a first stacked body at 1000° C. or more, the first stacked body having: a layer containing an oxide represented by the composition formula: La2Si2O7; a first layer provided on one side of the oxide-containing layer and containing cerium oxide doped with a lanthanum element; and a layer provided on the first layer opposite to the oxide-containing layer and containing nickel oxide, and thereby generating, from the oxide represented by the composition formula, a solid electrolyte that has an apatite structure and is c-axis oriented; placing a second layer containing cerium oxide doped or not doped with an Ln element (a rare earth element other than cerium), on the solid electrolyte-containing layer opposite to the cerium oxide-containing layer, and thereby obtaining a second stacked body; and heating the second stacked body at 1000° C. or more.
Resumen de: US20260018658A1
An electrolyte, a sodium secondary battery and an electric device. The electrolyte comprises a first sodium salt and a first solvent, wherein the first sodium salt comprises sodium trifluoromethanesulfonate, and the first solvent has a structure as shown in formula I, with the mass ratio of the first sodium salt to the first solvent being 0.01-0.4. The electrolyte has a good low-temperature ionic conductivity, which is beneficial for improving the low-temperature cycling performance and low-temperature coulombic efficiency of the battery.
Resumen de: US20260018651A1
A secondary battery includes: an electrode assembly including a through-hole in a thickness direction thereof, a case having an opening and accommodating the electrode assembly, a cap plate coupled to an end of the case having the opening of the case, and an electrode terminal electrically connected to an electrode tab of the electrode assembly and penetrating through the cap plate. The secondary battery further includes a fixing member in the through-hole to secure the electrode assembly in the thickness direction.
Resumen de: US20260018652A1
An electrode assembly according to the present disclosure includes a first electrode and a second electrode, wherein the first electrode and the second electrode are wound into a roll, wherein the first electrode comprises a first coated region in which a first active material is coated on a first current collector, and a first uncoated region adjacent to the first coated region, wherein the second electrode comprises a second coated region in which a second active material is coated on a second current collector, and a second uncoated region adjacent to the second coated region, and wherein a height of at least one of the first current collector.
Resumen de: US20260015235A1
The invention relates to a composition comprising a salt composed of a sodium cation and an anion of formula (II):wherein R1 and R2 independently represent a fluorine atom or a perfluorinated group, the composition having a sulfamate ion content of from 0.1 to 3000 ppm by weight. The invention also relates to a process for preparing this composition and to an electrolyte comprising same.
Resumen de: US20260015242A1
The present disclosure relates to a method of producing a recycled material. The method of producing a recycled material includes the following (a) and (b). (a) Preparing a battery material. (b) Generating carbon disulfide by causing carbon that is included in the battery material and sulfur to react with each other.
Resumen de: US20260015254A1
Disclosed are a positive electrode active material for a rechargeable lithium battery, a preparation method thereof and a rechargeable lithium battery, the positive electrode active material for a rechargeable lithium battery including a first positive electrode active material in a form of secondary particles including a lithium nickel-cobalt-aluminum-based composite oxide and formed by agglomerating a plurality of primary particles, wherein at least a portion of the primary particles is oriented radially; and a second positive electrode active material in a form of secondary particles including a lithium nickel-cobalt-aluminum-manganese-based composite oxide, and formed by agglomerating a plurality of primary particles, wherein an average particle diameter of secondary particles of the first positive electrode active material is larger than an average particle diameter of the secondary particles of the second positive electrode active material.
Resumen de: US20260015253A1
The present invention pertains to a metal composite compound that contains a transition metal element and is used as a precursor of a positive electrode active material for a lithium ion secondary battery, the metal composite compound being in a form of particles, wherein when a 50% cumulative volume particle diameter (D50) and a 90% cumulative volume particle diameter (D90) of the particles measured by a laser diffraction scattering method are denoted as a (μm) and b (μm), respectively, a ratio of B (MPa), which is an average particle strength of particles having a particle diameter of b±1.0 (μm), with respect to A (MPa), which is an average particle strength of particles having a particle diameter of a±1.0 (μm), i.e., B/A, is 0.85 or more and 1 or less.
Resumen de: US20260015252A1
This application provides a positive electrode active material, a preparation method thereof, and a positive electrode plate, a battery, and an electric apparatus including the same. The positive electrode active material includes a layered transition metal oxide represented by Formula (I), with parameters as defined herein. The positive electrode active material includes a K element, and an amount of the K element decreases from a particle surface to a particle interior of the positive electrode active material.
Resumen de: US20260018753A1
An electrode wound body includes positive and negative electrodes, and a separator between the positive and negative electrodes. The positive electrode includes a positive foil extension extending from a positive electrode foil. The negative electrode includes a negative foil extension extending from a negative electrode foil. The positive electrode, the negative electrode, and the separator are wound to define a spiral including a through hole with a central axis extending through the through hole. The positive and negative foil extensions extend from opposite ends of the electrode wound body. Portions of the positive foil extension include bends that bend towards the central axis so that the portions of the positive foil extension overlap to define a first surface. Portions of the negative foil extension include bends that bend towards the central axis so that the portions of the negative foil extension overlap to define a second surface.
Resumen de: US20260018718A1
The present invention relates to a secondary battery. The secondary battery comprises: an electrode assembly; a can configured to accommodate the electrode assembly; an electrolyte impregnated into the electrode assembly while being injected into the can; and a cap assembly mounted on an opening of the can, wherein the cap assembly comprises: a top cap in which a top hole is formed to pass vertically; a safety vent which is provided under the top cap and in which a vent hole is formed to pass vertically; and a current interrupt device (CID) filter which is provided under the safety vent, to which a positive electrode tab provided in the electrode assembly is coupled, and in which a CID hole is formed to pass vertically, wherein the CID hole is closed or opened by the positive electrode tab.
Resumen de: US20260018717A1
An electric battery comprises a hollow container having a side wall and a bottom wall defining an inner cavity, an upper portion opposite to the bottom wall along an axial direction, an electrochemical cell inserted into the inner cavity of the hollow container, an insert made of electrically conductive material mechanically and electrically connected to an anode of the electrochemical cell, a lid placed to close the hollow container at the upper portion and comprising a peripheral portion. The insert made of electrically conductive material comprises a connection portion interposed between the upper portion of the hollow container and the peripheral portion of the lid and in electrical contact with at least the upper portion of the hollow container. The peripheral portion of the lid is in electrical contact with at least the upper portion of the hollow container.
Resumen de: US20260018695A1
The thickness of a heat conductive material can be made uniform. A battery module unit includes: a pair of battery modules disposed in parallel to each other in a state in which the battery modules are opposed to each other; a cooler disposed between the pair of the battery modules in parallel to the battery modules, the cooler being configured to cool the battery modules; a heat conductive material disposed between each of the battery modules and the cooler, each of the heat conductive materials being configured to conduct heat of the corresponding battery module to the cooler; a pair of holding members configured to hold corresponding ends of each of the pair of the battery modules; and spacers disposed between one of the battery modules and the cooler together with the heat conductive material.
Resumen de: US20260018729A1
A vehicle includes: a vehicle body including a floor panel and a frame member; an energy storage device, and a plurality of fastening portions. The frame member includes a first member and a second member. The energy storage device includes a first sidewall, a second sidewall, and a front wall. The fastening portions include a plurality of first fastening portions located at the first sidewall and a plurality of second fastening portions located at the second sidewall. The first fastening portion located furthest to the front is located forward of the second fastening portion located furthest to the front. A protruding portion protruding upward is provided at the front wall of the energy storage device. The protruding portion is disposed so as to overlap a portion of the vehicle body in the vertical direction.
Resumen de: US20260018650A1
Provided are a method for preparing an electrode sheet, an apparatus for preparing an electrode sheet, an electrode sheet, and a battery cell. The method for preparing the electrode sheet includes: cutting a dry-process electrode film material to form a dry-process electrode film; cutting a current collector material to form a current collector, a size of the current collector being smaller than or equal to that of the dry-process electrode film; and sequentially stacking and pressing a plurality of layers of dry-process electrode films, the current collector, and a plurality of layers of dry-process electrode films to form the electrode sheet, the plurality of layers of dry-process electrode films on a same side of the current collector are arranged in a manner that front and back sides of the plurality of layers of dry-process electrode films alternate with respect to the current collector.
Resumen de: US20260018649A1
A battery production device, a battery production apparatus, and a battery production method are disclosed. The battery production device includes a frame, a moving mechanism, and a cover body. The moving mechanism is connected to the frame and has a first station, the moving mechanism being configured to move a first support cup to the first station, the first support cup including a first mounting cavity adapted to receive a battery. The cover body is configured to seal the first support cup located at the first station, thereby sealing the first mounting cavity.
Resumen de: US20260018646A1
An apparatus for and method of manufacturing a secondary battery are provided. The apparatus for manufacturing a secondary battery includes an alignment box including an alignment space, a plurality of first electrode grippers disposed to be spaced apart from each other in an extension direction of a separator, on one side of the separator extending toward the alignment box, and supporting a first electrode, and a plurality of second electrode grippers disposed to face a gap between the plurality of first electrode grippers, on the other side of the separator, and supporting a second electrode. The plurality of first electrode grippers and the plurality of second electrode grippers are provided to move to be aligned in the alignment space while intersecting with the separator therebetween, so that the first electrode and the second electrode are alternately stacked with the separator therebetween in the alignment space.
Resumen de: US20260018611A1
An electrochemical device includes a negative electrode plate. The negative electrode plate includes a negative current collector, a first layer, and a second layer. The first layer is located between the negative current collector and the second layer. The first layer and the second layer both include graphite. A ratio of an intensity of a D peak to an intensity of a G peak in a Raman spectrum of the graphite in the first layer is A, A ranges from 0.05 to 0.3, a ratio of an intensity of a D peak to an intensity of a G peak in a Raman spectrum of the graphite in the second layer is B, B ranges from 0.4 to 0.8, and 0.2≤B−A≤0.5.
Nº publicación: US20260018582A1 15/01/2026
Solicitante:
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
Resumen de: US20260018582A1
An electrode for a rechargeable battery may include a substrate, and an active material layer formed on the substrate. The substrate has a plurality of holes, where a depth of the holes increases from an edge of the substrate to a center of the substrate.
BOPI
Sede Electrónica
