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1808
resultados
Última actualización
06/06/2025 [07:29:00]
Resultados 500 a 525 de 1808
Resumen de: US2025128951A1
A process for the purification of a graphite material that includes metal sulfide impurities is provided. The process includes subjecting the graphite material to oxidizing conditions, in the presence of oxygen, to convert the metal sulfide impurities into metal oxides and sulfur dioxide, thereby obtaining a metal sulfide-lean graphite material; subjecting the metal sulfide-lean graphite material to carbochlorination, in the presence of chlorine gas, to convert the metal oxides into metal chlorides and obtain a metal chloride-rich graphite material; and purging the metal chlorides from the metal chloride-rich graphite material, thereby obtaining a purified graphite material.
Resumen de: WO2025110711A1
The present invention relates to a method for deactivating a pair of outermost negative electrodes respectively disposed at the uppermost end and the lowermost end of an electrode assembly comprising a plurality of positive electrodes, a plurality of negative electrodes, and a plurality of separators, the method comprising a deactivation step of forming a deactivation region having a predetermined width (w) along an edge of one surface of each outermost negative electrode, wherein in the deactivation step, the width (w) is determined on the basis of the horizontal length of the outermost negative electrode, the vertical length of the outermost negative electrode, and the number of monocells composed of a separator, a negative electrode, a separator, and a positive electrode in the electrode assembly. By providing the method for deactivating outermost negative electrodes, it is possible to provide a clear guide for a deactivation operation of outermost negative electrodes of an electrode assembly.
Resumen de: WO2025110390A1
The present invention provides a battery pack moisture sensing module, a moisture sensing device using same, and a battery pack protection method. The battery pack moisture sensing module comprises: a case having a predetermined space therein; a first dielectric formed on at least a portion of the inner surface of the case; a second dielectric formed, to a predetermined height from the lower surface of the case, inside the case; and a moisture sensing unit that is connected to the second dielectric and detects moisture that penetrates into the case.
Resumen de: WO2025110710A1
A battery module according to the present invention comprises: a secondary battery comprising an electrode lead; a module case configured to accommodate the secondary battery, and including a mesh part having a mesh shape; and a refractory paint layer applied to the mesh part, and foamed by heat of a predetermined temperature or higher.
Resumen de: WO2025110631A1
According to exemplary embodiments of the present invention, a battery pack is provided. The battery pack includes: a pack housing including a base plate and side walls; first and second cross beams which are arranged on the pack housing, are spaced apart from each other in a first direction parallel to a mounting surface of the base plate, and extend in a second direction parallel to the mounting surface of the base plate; a battery cell assembly interposed between the first and second cross beams; a lid which is coupled to the side walls and covers the battery cell assembly; and a reinforcing bracket which is coupled to the lid and extends along the first direction.
Resumen de: WO2025110713A1
The present invention relates to a separator comprising: a substrate layer; and a porous coating layer located on one surface or both surfaces of the substrate layer and including first inorganic particles, second inorganic particles, and an acrylic binder, wherein the ratio of the average particle diameter (D50) of the second inorganic particles to the average particle diameter (D50) of the first inorganic particles is 1.4 to 2.0, the content of the first inorganic particles is greater than the content of the second inorganic particles with respect to the total weight of the porous coating layer, and the thickness of the porous coating layer is 1.2-2.0 µm.
Resumen de: WO2025108102A1
A battery (1000) and an electric device. The battery (1000) comprises: a case (10), a battery unit (20) and a smoke guide frame (30), wherein the case (10) is provided with an accommodating cavity and a smoke exhaust channel (12); the battery unit (20) and the smoke guide frame (30) are both located in the accommodating cavity; the battery unit (20) is provided with a first side and a second side arranged opposite to each other in a first direction X; the battery unit (20) comprises a first battery cell module and a second battery cell module alternately arranged and connected to each other in series; the first battery cell module and the second battery cell module each comprise battery cells (21); and each battery cell (21) is provided with a battery cell explosion-proof valve (21a), all the battery cell explosion-proof valves (21a) of the first battery cell module face the first side, and all the battery cell explosion-proof valves (21a) of the second battery cell module face the second side. The smoke guide frame (30) is provided with a plurality of smoke guide channels (31), and on the same side of the battery unit (20), all the smoke guide channels (31) on the smoke guide frame (30) correspond to all the battery cell explosion-proof valves (21a) on a one-to-one basis; and the smoke guide channels (31) correspond to smoke inlets (13a) of the smoke exhaust channels (12) on a one-to-one basis, and the smoke guide channel (31) is in communication with the corresponding batte
Resumen de: WO2025107774A1
A composite current collector, an electrode sheet, a secondary battery, and an electric apparatus. The composite current collector comprises a substrate layer, a first filler, a bonding layer and a conductive layer, wherein the bonding layer is located between the substrate layer and the conductive layer, one end of the first filler is embedded into the substrate layer, the other end of the first filler is embedded into the bonding layer, the hardness of the first filler is greater than the hardness of the substrate layer, and the hardness of the first filler is greater than the hardness of the bonding layer. In the composite current collector, a first filler having a hardness greater than that of a substrate layer and that of a bonding layer is introduced, one end of the first filler is embedded into the substrate layer, the other end of the first filler is embedded into the bonding layer, and the first filler can serve as a focal force application point between the substrate layer and the bonding layer, thereby facilitating an improvement to the elastic modulus of the composite current collector, and reducing the risk of wrinkling during the machining of an electrode sheet.
Resumen de: WO2025107725A1
A modified positive electrode material and a preparation method therefor, a positive electrode sheet, and a lithium-ion battery. The modified positive electrode material comprises a positive electrode material serving as a matrix, and a composite coating layer generated in situ on the surface of the matrix. The composite coating layer comprises a spinel phase coating layer disposed on the inner side and a composite nitride coating layer disposed on the outer side, wherein the chemical formula of the composite nitride coating layer is selected from αANβOγ·(1-α)DδEε. The thermal conductivity and electrical conductivity of the modified positive electrode material are effectively improved. Moreover, when used in a lithium-ion battery, the modified positive electrode material has excellent thermal safety and electrochemical performance.
Resumen de: CN119677692A
The invention relates to a method for producing a particulate (oxy) hydroxide of TM, in which nickel and at least one metal selected from Co and Mn are combined, the method comprises the following steps: (a) providing an aqueous solution (alpha) containing one or more water-soluble salts of Ni and at least one transition metal selected from Co and Mn and optionally at least one additional metal selected from Ti, Zr, Mo, W, Al, Mg, Nb and Ta and an aqueous solution (beta) containing an alkali metal hydroxide and optionally an aqueous solution (gamma) containing a complexing agent, (b) combining solutions (alpha) and (beta) and, if applicable, solution (gamma) in a stirred tank reactor at a pH value in the range of 10.5 to 12.5, determined at 23 DEG C, in one or more sub-steps, thereby producing solid particles of hydroxide, said solid particles being pulpified, wherein the stirred tank reactor used in step (b) or at least one of the sub-steps (b) is equipped with a solid-liquid separation device through which a mother liquor containing pulpified hydroxide particles in the range of 2 mg/l to 20 g/l is removed.
Resumen de: US2025174754A1
The disclosure provides a battery pack including a box body, a battery module, a cells contact system, and multiple heat-conducting portions. The box body is provided with an accommodating cavity; the battery module is disposed in the accommodating cavity; the cells contact system is disposed in the accommodating cavity and connected to the battery module; the cells contact system includes multiple busbars and multiple insulating brackets, and the multiple insulating brackets are arranged at intervals; and each of the insulating brackets is provided with one or more snap slot portions recessed towards a first direction, and the busbars are disposed in the one or more snap slot portions; and the heat-conducting portions are disposed in the one or more snap slot portions and connected to a side of the busbars away from the battery module.
Resumen de: AU2024203522A1
PREPARATION METHOD OF IRON PHOSPHATE PRECURSOR FOR A preparation method of an iron phosphate precursor for batteries is disclosed and includes steps of: (a) providing a phosphoric acid and an iron powder, wherein the iron powder has an apparent density of iron powder ranging from 2.3 g/cm 3 to 2.6 g/cm3, and a particle size composed of a first particle-size range and a second particle-size range, the first particle-size range is greater than the second particle-size range, and a weight of the iron powder in the second particle-size range accounts between 10 % and 30 % of the total weight of the iron powder; (b) reacting the phosphoric acid with the iron powder to generate a first product; and (c) heat-treating the first product in an air or oxygen atmosphere to form the iron phosphate precursor. providing a phosphoric acid and an iron powder, wherein the iron powder has an apparent density of the iron powder ranging from 2.3 g/cm3 to 2.6 g/cm3, and a particle size composed of a first particle-size range and a second particle-size range, the first particle-size range is greater than the second S100 particle-size range, and a weight of the iron powder in the second particle-size range accounts between 10 % and 30 % of the total weight of the iron powder \/ reacting the phosphoric acid with the iron powder to generate a first product heat-treating the first product in an air or oxygen atmosphere to form the iron phosphate precursor S300
Resumen de: US2025149560A1
Provided are material and preparation method thereof, and battery. The anode material includes an active substance. Surface compactness of the anode material is β, and β≥80%. β is measured by the following test methods: the anode material with mass of m1 g is soaked in a hydrofluoric acid solution with a mass fraction of 20% for 1 hour, then washed and dried to obtain m2 g of a material, and the surface compactness of the anode material is obtained through calculated, where β=m2/m1×100%.
Resumen de: WO2025110380A1
A battery module of the present disclosure comprises: a plurality of battery cells each including a main body part including an electrode assembly therein, a venting part formed to be openable on one surface of the main body part, and a tab part connected to the electrode assembly and protruding to the outside of the main body part in a preset protruding direction; and a support housing supporting the plurality of battery cells and including a contact part which is in contact with at least any one battery cell among the plurality of battery cells, a through hole formed through the contact part, and concave parts recessed from both sides of the contact part in a direction away from the plurality of battery cells.
Resumen de: WO2025110379A1
The present invention relates to a method and a device for forming a three-dimensional electrode structure and a method and a device for calculating a morphological parameter of a three-dimensional electrode structure formed thereby. The method for forming a three-dimensional electrode structure according to an embodiment of the present invention may include: a coating process step in which a coating process simulator determines the domain and voxel sizes on the basis of a design parameter entered for the three-dimensional electrode structure, and forms an active material, a conductive additive and binder (CBD), and a current collector within the domain using the design parameter; and a calendering process step in which a calendering process simulator simulates a rolling process for the domain using an input machine parameter for the three-dimensional electrode structure, and corrects the structural deformation error of the rolled domain.
Resumen de: WO2025110678A1
The present application may provide a battery assembly comprising a plurality of battery cells and a cooling member interposed between the plurality of battery cells, wherein the cooling member comprises: a main body portion including a refrigerant flow path provided to allow a refrigerant to flow therein; an inlet portion communicating with the refrigerant flow path and provided to introduce the refrigerant; and an outlet portion communicating with the refrigerant flow path and provided to discharge the refrigerant, and the inlet portion and the outlet portion extend from one side of the main body portion corresponding to the venting direction of the plurality of battery cells.
Resumen de: WO2025110606A1
A positive electrode active material for a rechargeable lithium battery, according to embodiments of the present disclosure, comprises composite particles comprising lithium metal phosphate particles and a carbon coating formed on the lithium metal phosphate particles, wherein the C/Fe ratio of the composite particles measured through X-ray photoelectron spectroscopy (XPS) analysis is 5 to 80.
Resumen de: WO2025110439A1
The present invention relates to an energy storage device having a cooling liquid and, more specifically, to an energy storage device having a cooling liquid for effectively cooling heat generated from a battery module, the cooling liquid being filled in a housing in which the battery module is embedded.
Resumen de: WO2025107787A1
The application provides a battery and an electrical device, and solves the problem of safety risks in the internal area of a box body of the battery caused by liquid when liquid appears in the box body. The battery comprises the box body, battery cells and sensors. The battery cells and the sensors are arranged in the box body. The sensors are configured to detect the refractive index of the liquid in the box body.
Resumen de: WO2025107952A1
Embodiments of the present disclosure provide a battery cell support assembly, a battery and an electrical device, and relate to the technical field of battery safety. Specifically, the battery cell support assembly comprises a top cover piece, a lower plastic, and a support. In detail, an open end of the lower plastic having a U-shaped structure directly faces and moves relative to an open end of the support, which also has U-shaped structure, such that a connecting part disposed on the lower plastic fits with a matching part disposed on the support. The support is accommodated in a first accommodating cavity formed by the lower plastic having the U-shaped structure, thus realizing fixation of the lower plastic and the support. Based on the described configuration, the battery cell support assembly provided by the present disclosure implements assembly of the lower plastic and the top cover piece by means of only one support, thereby achieving the technical effect of reducing a number of supports so as to reduce costs, and also simplifies a support assembly action, achieving the technical effects of reducing device assembly complexity, and saving time and labor in the assembly process.
Resumen de: WO2025107877A1
A battery cell casing, a pressure relief mechanism (2) of a battery cell, a battery cell (10), and an electrical apparatus. The battery cell casing comprises a casing body (1) and a pressure relief mechanism (2); a through hole (20) is formed in the casing body (1); the pressure relief mechanism (2) is arranged in the through hole (20); the pressure relief mechanism (2) comprises an adhesive film (21) and a cover piece (22); the cover piece (22) is bonded to the casing body (1) by means of the adhesive film (21) and covers the through hole (20); the adhesive film (21) can be heated and melted to form a pressure relief channel communicating the interior and the exterior of the casing body (1); the bonding area of the cover piece (22) and the casing body (1) is A, and the cross-sectional area of the through hole (20) covered by the cover piece (22) is B, wherein 1.778≤A/B≤16.361. According to the structure, the range of the ratio of the bonding area A of the cover piece (22) and the casing body (1) to the cross-sectional area B of the pressure relief channel covered by the cover piece (22) is limited, so that when the internal pressure of the battery cell (10) reaches a preset value, the cover piece (22) can fall off in time to form a pressure relief channel, and the internal pressure of the battery cell (10) is reduced in time, and thus, the battery cell (10) can has good reliability while achieving overheating pressure relief.
Resumen de: US2024384371A1
The present invention relates to a process for the concentration of lithium in metallurgical fumes wherein a metallurgical charge is smelted, thus obtaining a molten bath comprising a slag phase and optionally an alloy phase and fuming the lithium from the molten slag, by addition of a halogen intermediate, wherein the halogen intermediate is produced from the Li halide fumed from the molten slag. The halide is thus efficiently re-used in the process, while the lithium is recovered and isolated.
Resumen de: MA66625A1
Une méthode de fabrication d'un matériau actif de cathode comprend la mise en contact d'une composition métallique mixte avec de l'eau pour former une première solution. La composition métallique mixte comprend du nickel, du cobalt, du manganèse, de l'aluminium, ou une combinaison de ceux-ci, et plus de 0 à 2 pour cent en poids, sur la base du poids total de la composition métallique mixte, d'un composé comprenant Cu, Fe, Mg, Na, Ca, Zn, F, Si, Li, ou d'une combinaison de ceux-ci. Un sel de nickel, de cobalt, de manganèse, d'aluminium ou une combinaison de ceux-ci est ajoutée à la première solution pour fournir une seconde solution, qui peut en outre être combinée à une solution basique pour fournir un précipité. Le précipité peut être combiné avec un composé de lithium et traité pour fournir le matériau actif de cathode.
Nº publicación: MA65153A1 30/05/2025
Solicitante:
SPECIALTY OPERATIONS FRANCE [FR]
SPECIALTY OPERATIONS FRANCE
Resumen de: MA65153A1
The present invention relates to a composition comprising an alkali metal salt of bis(fluorosulfonyl)imide and the use of such a composition in a battery electrolyte
BOPI
Sede Electrónica
