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1008
resultados
Última actualización
16/10/2026 [07:23:00]
Resultados 200 a 225 de 1008
Resumen de: EP4822292A1
0001 The present disclosure provides a secondary battery electrode thickness measuring device comprising a fixed side base member; a lower base member coupled to the side base member; a plurality of electrode transfer rollers supported by the side base member, supporting an electrode, and transferring the electrode in one direction; a sensor part measuring a thickness of an electrode positioned in a space between two electrode transfer rollers among the plurality of electrode transfer rollers; a moving part moving the sensor part; and a calibration part zero-point calibrating the sensor part.
Resumen de: EP4822582A1
0001 A three-dimensional electrode structure design system according to an embodiment of the present invention may comprise: a structure forming module configured to form a conductive additive and binder (CBD) structure using a first design parameter input for the CBD structure, and form an electrode structure using a second design parameter input for the electrode structure; a calculation module configured to calculate an effective electrical conductivity of the CBD structure using an intrinsic electrical conductivity of a conductive additive and an intrinsic electrical conductivity of a binder, calculate an effective electrical conductivity of the electrode structure using an intrinsic electrical conductivity of the active material, an intrinsic electrical conductivity of CBD particles, and an intrinsic electrical conductivity of the current collector, and calculate a calculated resistivity of the electrode structure by converting the effective electrical conductivity of the electrode structure into a reciprocal; a correction module configured to calculate a deviation by comparing the calculated resistivity with a target resistivity and correct a variable or shape of an electrode structure in a direction of minimizing the deviation; and a backtracking module configured to calculate the intrinsic electrical conductivity of the active material, the intrinsic electrical conductivity of CBD particles, the intrinsic electrical conductivity of the current collector, and a thir
Resumen de: EP4822772A1
0001 One embodiment of the present invention provides a positive electrode active material for a sodium secondary battery, comprising: a composite particle; and a coating layer covering at least a portion of a surface of the composite particle, wherein the composite particle comprises at least one transition metal selected from nickel, iron, and manganese, sodium, and a doping metal, and wherein the coating layer comprises an oxide of a coating transition metal and the doping metal.
Resumen de: EP4822773A1
One embodiment of the present invention provides a positive electrode active material for a sodium secondary battery, comprising a sodium composite transition metal oxide including at least sodium, a transition metal, a first doping metal, and a second doping metal, wherein a ratio (RM1/R) of an ionic radius (RM1) of the first doping metal to an ionic radius (R) of the sodium is 0.8 to 1.2, and a ratio (RM2/R) of an ionic radius (RM2) of the second doping metal to the ionic radius (R) of the sodium is 0.5 to 0.7.
Resumen de: EP4822865A1
0001 The present disclosure relates to a cell assembly and a battery pack including the same, the cell assembly including: a cell block including a plurality of battery cells; a protective cover coupled to the front and rear of the cell block, respectively; and a module frame surrounding the circumference of the cell block so that the cell block is sealed and coupled to the protective cover, wherein the module frame includes at least one melting groove at an upper portion thereof.
Resumen de: EP4822833A1
0001 A battery cell according to an embodiment of the present disclosure comprises: an electrode laminate formed by laminating a plurality of bipolar electrodes in which a negative electrode active material layer and a positive electrode active material layer are respectively coated on both surface of a metal current collector; a battery case that accommodates the electrode laminate; and an exterior member that surrounds a protruding portion extending outward from an outer peripheral surface of the battery case, wherein the exterior member presses the protruding portion in a thickness direction of the protruding portion.
Resumen de: EP4822880A1
The present disclosure provides a foil tab forming apparatus and method for forming an electrode tab exposed at one end of an electrode assembly in which a first electrode, a separator, and a second electrode are laminated and wound around a winding axis, and the foil tab forming apparatus includes a base portion having a flat surface; a pressure portion protruding from the flat surface of the base portion in the winding axis direction and configured to divide the electrode tab into a plurality of regions; and a plurality of forming portions provided corresponding to the plurality of divided regions and each configured to bend the electrode tab radially inward around the winding axis within each of the divided regions.
Resumen de: EP4822856A1
0001 Disclosed is a battery module. The battery module includes an inner frame providing a space therein and containing a plastic material; a plurality of battery cells located within the inner frame; and an outer frame configured to cover the inner frame and containing a metal material.
Resumen de: EP4822848A1
The present disclosure relates to a battery module and a battery pack including the same, and the battery module according to an embodiment of the present disclosure includes: a module frame accommodating a battery cell stack where a plurality of battery cells are stacked, and having at least one surface open; end plates respectively covering the at least one opened surface of the module frame; an insulating plate disposed between the battery cell stack and the end plate, and having a connecting member electrically connected to the battery cell stack; a sensing assembly coupled to the connecting member and configured to sense voltages and temperatures of the plurality of battery cells; and a fireproof cover for surrounding a coupling portion between the sensing assembly and the connecting member and a portion of the insulating plate.
Resumen de: EP4822793A1
A method for manufacturing an electrode assembly according to the present disclosure comprises: a step of providing a first electrode sheet coated in which 2n first electrodes are coated on an upper surface of a first current collector along a first direction, a step of providing a second electrode sheet in which n second electrodes are respectively coated on both the upper and lower surfaces of the second current collector so as to face each other along the first direction; a step of providing a separator; a stacking step of sequentially stacking a first electrode sheet, a separator, and a second electrode sheet, wherein the 1st-second electrode of the second electrode sheet is aligned with the 1st-first electrode of the first electrode sheet, and the upper surface of the first current collector faces the separator; wherein after the stacking step, the first electrode sheet comprises: a first portion that overlaps with the second electrode sheet on a plane, and includes n first electrodes among the 2n first electrodes; a second portion that includes the remaining n first electrodes among the 2n first electrodes; and a third portion that connects the first portion and the second portion and is not coated with the first electrodes, and wherein the separator comprises a first separator overlapping with the first portion on a plane, a second separator overlapping the second portion, and a third separator overlapping with the third portion; after the stacking step, a folding step
Resumen de: EP4822372A1
An apparatus for diagnosing a battery according to an embodiment of the present disclosure comprises a data obtaining unit configured to obtain battery data including at least one of voltage, current, and temperature of the battery; and a processor configured to estimate a positive electrode active material loss rate of the battery based on the battery data by referring to a first profile provided for estimating a positive electrode active material loss related to cation mixing and a second profile provided for estimating a positive electrode active material loss related to particle cracking.
Resumen de: EP4822799A1
0001 The present invention relates to an electrolyte membrane and a preparation method thereof. The preparation method includes the following steps: mixing a first polymer, an ionic liquid, and an organic solvent to obtain a first solution; adding a solid electrolyte to the first solution to obtain a slurry A; mixing second polymers having different weight average molecular weights to obtain a polymer mixture, and mixing the polymer mixture, the ionic liquid, and the organic solvent to obtain a colloidal liquid B; mixing the slurry A and the colloidal liquid B to obtain an intermediate colloid C; mixing a lithium salt and the ionic liquid with the organic solvent to obtain a composite solution; mixing the intermediate colloid C with the composite solution and stirring to obtain a composite; applying the composite onto a substrate and drying the composite.
Resumen de: EP4822829A1
0001 Disclosed is a battery assembly. The battery assembly includes a case providing a space therein and including a top cover; a plurality of battery cells located within the case; a perimeter wall located between the plurality of battery cells and the top cover and providing a space therein; a temperature sensor located within the perimeter wall; and a heat transfer member located between the plurality of battery cells and the top cover.
Resumen de: EP4822827A1
0001 A battery pack includes: at least one battery cell 43 including an electrode body 48 and a cell case 44 that includes a bottom wall portion 45 disposed below the electrode body 48 and a front wall portion 46F and a rear wall portion 46R disposed in a longitudinal direction of the electrode body 48; a battery case that houses the at least one battery cell 43; and a thermally conductive material 60 that is adhered to the bottom wall portion 45 and a bottom plate portion 26, which is the bottom portion of the battery case, the thermally conductive material 60 being deformable. The thickness of the bottom wall portion 45 is greater than the thickness of the front wall portion 46F and the rear wall portion 46R.
Resumen de: EP4822864A1
0001 A smoke discharge structure includes plural storage battery modules each configured by plural storage battery cells arranged in a row, a channel member that configures a smoke discharge channel allowing a flow of smoke generated from the storage battery cells, a reinforcement member that extends in a row direction of the storage battery cells between the plural storage battery modules, and a cell pedestal configuring part of the smoke discharge channel and forming a closed profile between itself and the reinforcement member in a cross-section taken along a direction orthogonal to an extension direction of the reinforcement member.
Resumen de: EP4822823A1
A vehicle storage battery pack includes: a storage battery cell installed to a vehicle; a lower case that has the storage battery cell mounted thereto and that includes a region separated from a lower face of the storage battery cell, the region configuring a smoke discharge channel; and a heat receiving member that is arranged on a lower face of the lower case and that receives heat of the storage battery cell, wherein the lower face of the lower case at a region configuring the smoke discharge channel is arranged lower than a lower face of the heat receiving member.
Resumen de: EP4822271A1
0001 A system includes an air conditioning system (502) including: a first unit (200) having a compressor (242) and a first heat exchanger (508); a second unit (250) having a second heat exchanger (514); the air conditioning system (502) configured to circulate a refrigerant between the first unit (200) and the second unit (250); an energy storage device (240) configured to power the compressor (242); a controller (220); and a thermal management system (600) having a third heat exchanger (602), the third heat exchanger (602) configured to receive refrigerant from the air conditioning system (502) in certain modes of operation; the thermal management system (600) configured to supply fluid to the energy storage device to provide one of heating and cooling of the energy storage device.
Resumen de: EP4822065A1
The present disclosure relates to an electrolytic copper foil, a preparation method thereof, a negative electrode plate, and a secondary battery. The electrolytic copper foil includes at least one copper layer. A proportional coefficient of columnar grains to equiaxed grains in a section of the copper layer along a thickness direction of the copper layer is denoted as TJM, a maximum average of misorientation angles is denoted as KAMmax, and a grain size is denoted as R. The section satisfies at least one of following conditions (1) to (3): (1) 0.2≤TJM≤0.4; (2) KAMmax≤5.5°; and (3) a proportion of grains with R≤0.3 µm is 40% to 50%, a proportion of grains with R≤0.4 µm is 70% to 80%, and a proportion of grains with R≤0.5 µm is greater than or equal to 95%. The electrolytic copper foil has high tensile strength, high elongation, and high thermal stability.
Resumen de: EP4822867A1
0001 Disclosed is a battery pack. The battery pack includes a case providing a space therein and having a pack cover; a battery stack located within the case and having a plurality of battery cells; a top cover located between the battery stack and the pack cover; and an insulation cover having a top part coupled to an upper surface of the top cover and a first side part configured to cover one side of the battery stack.
Resumen de: EP4822861A1
A battery unit includes a case providing an internal space and including a top cover; and a battery cell located inside the case. The top cover includes a top plate that covers the battery cell and has a venting hole; and a venting guide that is disposed on an upper surface of the top plate and covers at least a portion of the venting hole.
Resumen de: EP4822782A1
0001 One embodiment of the present invention provides a positive electrode active material for a sodium secondary battery, comprising a sodium composite transition metal oxide including sodium (Na) and transition metals comprising nickel (Ni), copper (Cu), M1, and M2, wherein, in the composite transition metal oxide, M1 and M2 are different metals from each other and are each manganese (Mn), iron (Fe), or cobalt (Co), and wherein the sodium composite transition metal oxide comprises single crystals and satisfies Relation Formula 1.
Resumen de: EP4822786A1
0001 The present specification discloses a current collector and a use thereof. The current collector comprises a polymer layer exhibiting a so-called PTC (Positive Temperature Coefficient) effect at a required level at a required time, whereby it can be suitably applied in applications where stability problems due to abnormally high heat and/or flame are caused. In the polymer layer of the current collector, the PTC effect can rapidly appear at a required time. The present specification also discloses a use of the current collector.
Resumen de: EP4822792A1
The disclosed invention relates to a prismatic secondary battery accommodating an electrode assembly and an electrolyte within a metal case having a hexahedral shape. The electrode assembly is characterized by comprising a plurality of unit electrode assemblies stacked in the thickness direction.
Resumen de: EP4822870A1
0001 A composite separator and a preparation method therefor, and a battery and an electric device. The composite separator comprises a base membrane, wherein the base membrane has a first surface and a second surface arranged opposite each other, a non-woven fabric layer being provided on the first surface of the base membrane, the non-woven fabric layer comprising non-woven fabric material formed by polymer fibers, and the porosity of the non-woven fabric layer being at least 40%. The composite separator is used in the battery, the non-woven fabric layer being adjacent to a negative electrode sheet of the battery. The composite separator is formed by compounding the base membrane and the non-woven fabric formed by the polymer fibers, and when the composite separator is used in the battery, the non-woven fabric layer is close to the side of the negative electrode sheet; thus, on the basis of the characteristics of the non-woven fabric layer of the composite separator, the cycle stability, cycle life and safety of the battery are improved.
Nº publicación: EP4822767A1 14/10/2026
Solicitante:
LG CHEMICAL LTD [KR]
LG Chem, Ltd.
Resumen de: EP4822767A1
0001 The present invention relates to a method for manufacturing a positive electrode active material precursor having excellent sphericity, uniform particle size distribution, and alleviated particle agglomeration by performing a reaction of producing a positive electrode active material precursor seed in a continuous stirred tank reactor (CSTR), and introducing the produced precursor seed into a batch reactor to be grown, wherein the content of the positive electrode active material precursor particle seed is introduced into the batch reactor in an appropriate amount.
BOPI
Sede Electrónica
