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658
resultados
Última actualización
05/01/2026 [07:04:00]
Resultados 25 a 50 de 658
Resumen de: EP4672445A1
A sealed battery according to one embodiment of the present invention comprises: an electrode body (14) in which a positive electrode plate (11) and a negative electrode plate (12) are stacked with a separator (13) therebetween; an exterior body which houses the electrode body and has an opening at one end; and a sealing body (19) which closes the opening of the exterior body. The sealing body has an identification label (30) formed on a movable portion so as to be separated from the exterior body when the internal pressure of the battery has increased.
Resumen de: EP4672380A1
Provided is a power-storage-device aqueous binder solution comprising a poly(amic acid) and water, in which the poly(amic acid) contains an aliphatic diamine unit and the poly(amic acid) is an amine salt.
Resumen de: EP4671227A1
An object is to achieve a manufacturing method of manufacturing a heat treatment jig by using a fired product, which has already been fired, as a raw material. A method of manufacturing a heat treatment jig of the present invention includes: a fired product-derived raw material forming step of forming a fired product-derived raw material by pulverizing a lithium-containing fired product that has Al<sub>2</sub>O<sub>3</sub>, SiO<sub>2</sub>, and MgO as main components and contains a lithium-containing compound; a fired raw material preparing step of preparing raw materials to be fired, the raw materials to be fired including the fired product-derived raw material that has been obtained in the fired product-derived raw material forming step as part or a whole of raw materials and including Al<sub>2</sub>O<sub>3</sub>, SiO<sub>2</sub>, and MgO at a predetermined ratio as main components; a kneading step of kneading the raw materials to be fired that have been prepared in the fired raw material preparing step; a molding step of molding the raw materials to be fired that have been kneaded in the kneading step; and a firing step of firing the raw materials to be fired that have been molded in the molding step under predetermined firing conditions.
Resumen de: EP4672481A1
An electrode plate, which is an example of an embodiment of the present invention, has a core body and a mixture layer formed on the core body, and is provided with an exposed part where the surface of the core body is exposed. The electrode plate has a lead joined to the exposed part, and an identification display part (36) formed on the outer surface of the lead. The identification display part (36) includes at least one of a discolored part and a recess formed on the outer surface of the lead by a melting and solidifying part that penetrates the lead in the thickness direction and reaches the exposed part and joins the lead and the exposed part.
Resumen de: EP4672548A1
A histogram generation unit generates a histogram of a residence time of a state of charge (SOC) of a battery based on battery data. An actual SOC range calculation unit specifies, as an actual SOC use range, an SOC range that falls within a predetermined appearance probability from the histogram. A recommended SOC range calculation unit calculates a recommended SOC use range in which deterioration is further suppressed than the actual SOC use range while referring to deterioration characteristics of the battery based on the actual SOC use range and a statistical charge and discharge pattern based on the battery data. A charge recommendation degree generation unit generates the charge recommendation degree that increases or decreases in accordance with the SOC of the battery, the charge recommendation degree having a lower limit SOC of the recommended SOC use range as a charge start recommendation value and an upper limit SOC of the recommended SOC use range as a charge end recommendation value.
Resumen de: EP4672358A1
A negative electrode for secondary batteries is provided, the negative electrode being able to be inhibited from swelling.The negative electrode for secondary batteries comprises a negative-electrode current collector and a negative-electrode mix layer disposed on the negative-electrode current collector, and is characterized in that the negative-electrode mix layer comprises a negative-electrode active material, which includes a carbon material and an Si-based material, and an organic compound having a solubility in water of 0.05 g/100 mL or less. The negative electrode is also characterized in that a pore diameter distribution of the negative-electrode mix layer determined by mercury porosimetry has two peaks R1 and R2.
Resumen de: CN120731190A
Alumina powder consisting of aggregates of primary particles, characterized in that it has an aggregate particle size distribution with an aggregate median particle size (D50) of 220 nm to 500 nm, preferably 230 to 400 nm, more preferably 250 nm to 300 nm, as determined by dynamic light scattering measurement, and in that it has a BET of 10 m < 2 >/g to 100 m < 2 >/g, and a method for preparing same.
Resumen de: TW202440465A
An aqueous dispersion containing aluminum oxide powder, characterized in that the aluminum oxide powder is present in the form of aggregated primary particles with an aggregate particle size distribution with a median aggregate particle size (D50) of 220 nm to 500 nm, as determined by dynamic light scattering measurement, and wherein the aluminum oxide powder has a BET of 10 m2/g to 100 m2/g, in an amount of at least 20 wt.%, preferably 40 to 60 wt.%, and more preferably 50 to 60 wt.% based on the total weight of the dispersion, and that the dispersion further comprises: - at least one carboxylic acid from the group consisting of dicarboxylic acids and/or hydroxy tricarboxylic acids having from 2 to 7 carbon atoms, and - at least one amino alcohol having from one to six carbon atoms. preferably DMEA (dimethylethanolamine), 2-Amino-2-Methyl-1-Propanol.
Resumen de: WO2024175318A1
Disclosed in the present invention is a battery thermal insulation pad, characterised in that the battery thermal insulation pad comprises at least one elastic functional layer (10) and at least one fibrous support layer (20), the elastic functional layer (10) comprising an organic base material and a first filler, the first filler comprising at least one of a heat-absorbing filler or a thermal insulation filler, and combinations thereof; the fibrous support layer (20) comprising a fibrous base material with gaps; wherein the elastic functional layer (10) at least partially fills the gaps of the fibrous base material. The battery thermal insulation pad has excellent thermal insulation performance and has certain elasticity so that it can absorb the pressure caused by the deformation of surrounding components.
Resumen de: EP4672473A1
Disclosed in the present application are a battery cell, a battery and an electric device. The battery cell comprises a casing, an electrode assembly and a buffer member, wherein the casing is provided with a mounting cavity; the electrode assembly is located in the mounting cavity, and is provided with side faces distributed in the thickness direction of the electrode assembly; the buffer member is located in the mounting cavity, and comprises a first buffer portion and a second buffer portion; at least one edge portion of the first buffer portion is connected to the second buffer portion; the first buffer portion at least partially covers a central area of each side face; and the second buffer portion covers an edge area of the side face. Under the same pressure, the amount of compression of the first buffer portion is larger than that of the second buffer portion, and the first buffer portion is more prone to pressing deformation than the second buffer portion, such that a larger expansion force in the central area is reduced more obviously than a smaller expansion force in the edge area, thereby alleviating the non-uniformity of the distribution of the expansion forces in the central area and the edge area of each side face, and improving the cycle performance of the battery cell and prolonging the service life thereof.
Resumen de: EP4672477A1
In the present invention, a cylindrical battery (10) comprises: an electrode (14); an electrolyte; a bottomed cylindrical outer casing can (16) that accommodates the electrode (14) and the electrolyte; a seal (17) that closes off an opening of the outer casing can (16); and an upper insulating plate (18) that is disposed in between the electrode (14) and the seal (17). The seal (17) is provided with a safety valve. The upper insulating plate (18) includes a base material (50) having a through hole (60), and a film (53) that blocks the through hole (60). The film (53) is constituted from a thermoplastic resin that melts at a lower temperature than the base material (50) does.
Resumen de: EP4672294A1
A first fuse device (40A) includes a narrow portion (414A) that functions as a fuse, and a first wide portion (412A) electrically connected to the narrow portion (414A) and having a cross-sectional area greater than the cross-sectional area of the narrow portion (414A). A first curve (404A) is provided from the outer edge of the narrow portion (414A) to the outer edge of the first wide portion (412A).
Resumen de: EP4671460A1
A heat insulation material, a preparation method therefor, a heat insulation member, a heat insulation product, a battery and an electrical apparatus. The heat insulation material may comprise heat insulation powder and reinforced phase fibers, the heat insulation powder being loaded on the surfaces of the reinforced phase fibers; and, in parts by mass, the heat insulation powder may be 25-120 parts, and the reinforced phase fibers may be 0.5-40 parts. The heat insulation material has high compactness, and obviously ameliorates the powder falling phenomenon; and moreover, loading the heat insulation powder on the surfaces of the reinforced phase fibers can reduce the agglomerating space and area of the heat insulation powder, thus reducing the agglomeration of the heat insulation powder, and effectively improving the uniformity of the overall performance of the heat insulation material.
Resumen de: EP4672430A1
Provided in the present invention are an energy storage thermal management system and method. The energy storage thermal management system comprises a controller, a battery, a power electronic device, and a shunting apparatus. The controller determines the operating mode of the energy storage management system, the operating mode being any one of a preset first mode, second mode and third mode; and according to the operating mode of the energy storage thermal management system, controls a corresponding path of the shunting apparatus to be turned on, so that in the first mode, the battery performs heat exchange in a compression cooling mode and the power electronic device performs heat exchange in a liquid-cooled heat exchange mode; in the second mode, the battery and the power electronic device both perform heat exchange in the liquid-cooled heat exchange mode; and in the third mode, the power electronic device and/or an electric heater perform heat exchange with the battery. The present invention can select different heat exchange modes for the battery and the power electronic device according to different operating modes, so as to meet the heat dissipation requirements of the battery and the power electronic device.
Resumen de: EP4672364A1
Disclosed in the present application are a sodium layered metal oxide and a preparation method therefor, a secondary battery and an electric device. A chemical general formula of the sodium layered metal oxide is Na<sub>1-x</sub>A<sub>x</sub>C<sub>y</sub>M<sub>1-y</sub>O<sub>2</sub>, wherein M comprises a transition metal element; A comprises at least one of IIA group elements, V group metal elements, VIA group metal elements and IIIB group elements, and the ion radius of A is larger than that of M; C comprises at least one of a third-period metal element, a fourth-period metal element and a fifth-period metal element, and the valence of C is lower than or equal to that of M; and x=0.001-0.150, and y=0.001-0.500. By doping A and C into the sodium layered metal oxide, layer slippage and phase change are not prone to occurring on the sodium layered metal oxide in a sodium removal state, such that the sodium layered metal oxide has very good stability, the cycle performance can be improved, and the service life can be prolonged.
Resumen de: EP4671301A1
The present invention discloses a meta-aramid polymer with a grid structure, and a preparation method therefor and use thereof, and belongs to the technical field of lithium battery materials. In the process of forming the meta-aramid polymer, alkyl is introduced among macromolecules through alkylation, such that adjacent molecular chains are linked by a chemical bond so as to form a grid structure. A coating slurry prepared from the meta-aramid polymer with a grid structure, a pore-forming agent and a cosolvent are coated on the surface of a polyolefin porous separator so as to obtain a high-performance lithium battery coated separator. Compared with a coated separator prepared by a traditional method, the coated separator prepared by the present invention has higher heat resistance, thermal shrinkage resistance and puncture strength, has better wettability with an electrolyte, and thus can prolong a cycle life of a battery. The coated separator of the meta-aramid with a grid structure can further improve the oxidation resistance, is beneficial to realizing high potential and improves energy density.
Resumen de: EP4672362A1
The present invention discloses a preparation method of a silicon-carbon composite material and a silicon-carbon composite material. The preparation method includes: preparing a porous carbon-doped porous copper complex, and depositing nano-silicon on the porous carbon-doped porous copper complex according to a silane pyrolysis method, to obtain the silicon-carbon composite material. The preparation of the porous carbon-doped porous copper complex includes at least operation steps of: S11). uniformly mixing carbon disulfide, activated carbon, and a binder, and pressing an obtained mixture into copper foam to form a sheet-like structure; and S12). transferring the sheet-like structure obtained in the step S11) to a carbonization apparatus, and performing heating and carbonization in an inert atmosphere to obtain the porous carbon-doped porous copper complex. In the present invention, the following obvious defects and problems are significantly alleviated: The nano-silicon cannot be completely deposited in porous carbon when only pure porous carbon is used as a substrate for depositing the nano-silicon, thus affecting expansion and high-temperature preservation performance of the silicon-carbon composite material due to exposure of the nano-silicon; and the use of a pure porous metal for depositing the nano-silicon leads to poor consistency and low efficiency.
Resumen de: EP4672357A1
This application provides a negative electrode plate, a secondary battery, and an electric apparatus. The negative electrode plate includes a current collector and a negative electrode film layer disposed on at least one side of the current collector, where the negative electrode film layer includes one or more active material layers, a negative electrode active material in the negative electrode film layer includes a first graphite negative electrode active material, a BET specific surface area of the first graphite negative electrode active material is denoted as A, and a BET specific surface area of the negative electrode active material in the negative electrode film layer is denoted as B, where A ≤ B, or a BET specific surface area of a material forming the negative electrode film layer is denoted as B', where A < B'.
Resumen de: EP4672401A1
The present disclosure relates to a lithium secondary battery improved in an output characteristic, a low-temperature characteristic, and the like. The lithium secondary battery comprises: a positive electrode, a negative electrode, and an electrolyte containing a lithium salt and a non-aqueous organic solvent, wherein the positive electrode includes a positive electrode current collector; and an active material layer that is formed on the positive electrode current collector and includes a positive electrode active material, a conductive material and an oxide-based solid electrolyte having a lithium ion source, and wherein the positive electrode active material and the oxide-based solid electrolyte are dispersed in the active material layer in the form of particles, and the average particle size(D50) of the particles satisfies a fixed ratio.
Resumen de: EP4672375A1
The present invention relates to a cathode active material, a method for producing same, and a cathode and a lithium secondary battery each comprising same, the cathode active material being in the form of a single particle and having an almost unchanged particle size distribution even after rolling, due to the small deformation of particles, wherein the cathode active material comprises a lithium composite transition metal oxide in the form of a single particle, and the lithium composite transition metal oxide comprises Ni, Co, Mn, Al, and M1, in which M1 is at least one selected from Zr, Y, K, Sr, and Ba, and satisfies equation 1. Equation 1 |1-α/β| ≤ 0.1, wherein α is a value of D90-D10)/D50, and β is a value of D<90>-D<10>)/D50 after the cathode active material is rolled at 1,000 kgf/cm2 to 7,000 kgf/cm2.
Resumen de: EP4671018A1
This application discloses a seat support member mounting structure, a battery pack, and a vehicle. The seat support member mounting structure includes a seat support member and a battery pack housing. The seat support member is connected to the battery pack housing by using a structural adhesive. According to the solutions of this application, the seat support member does not need to be welded to a vehicle body, and safety of the battery pack during collision can be improved. Therefore, the seat support member is particularly suitable for the vehicle body manufactured by using a composite material.
Resumen de: EP4672446A1
A cap assembly (200), a secondary battery (100) including the cap assembly (200), and a secondary battery inspection device (300) for inspecting the secondary battery (100) are disclosed. A cap assembly (200) includes a cap down (230), a vent (220) located on a surface of the cap down (230), and a mark (260) located on another surface of the cap down (230).
Resumen de: EP4672490A1
An electrolyte injection device includes: an electrolyte injection pipe that is configured to be coupled to an injection hole of a case; an exhaust module including a vacuum pump that is connected to the electrolyte injection pipe and is configured to exhaust an internal space of the case, and an air sensor configured to measure an amount of an exhaust air of the case; an electrolyte injection module including an electrolyte tank that is connected to the electrolyte injection pipe and is configured to store an electrolyte, and an injection nozzle installed at an inlet of the electrolyte tank; and a control portion that is electrically connected to each of the air sensor and the injection nozzle.
Resumen de: EP4672426A1
The present application provides a liquid-cooled plate, a battery module and a battery pack. A side of the first liquid-cooled plate body facing toward the second liquid-cooled plate body is provided with one or more recesses. The second liquid-cooled plate body includes a main body portion and one or more protruding portions. Each protruding portion is protruding from the main body portion. The one or more protruding portions are installed in the one or more recesses so that the first liquid-cooled plate body is installed to the second liquid-cooled plate body. The first liquid-cooled plate body and the second liquid-cooled plate body are positioned, and the installation of the first liquid-cooled plate body and the second liquid-cooled plate body is completed efficiently.
Nº publicación: EP4672356A1 31/12/2025
Solicitante:
ZHUHAI COSMX BATTERY CO LTD [CN]
Zhuhai CosMX Battery Co., Ltd
Resumen de: EP4672356A1
The present disclosure relates to the field of batteries, and specifically to a battery. Including an electrolyte solution and a positive electrode plate, the electrolyte solution includes a first additive, and a weight content of the first additive in the electrolyte solution is A; the positive electrode plate includes a positive electrode current collector and a positive electrode active material layer, and a proportion of an orthographic projection of the positive electrode active material layer on the positive electrode current collector is B; the battery further includes a termination tape, and a thickness of the termination tape is C, in µm; A, B, and C satisfy: 18 ≤ 19 × B + 0.38 × C - 100 × A ≤ 38. The battery of the present disclosure has less gas generation and expansion during the cycling process, and exhibits excellent cycle life and cycling stability.
BOPI
Sede Electrónica
