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658
resultados
Última actualización
04/01/2026 [07:05:00]
Resultados 25 a 50 de 658
Resumen de: CN120693723A
The invention relates to a battery (10) comprising a plurality of electrochemical cells (11) arranged within a closed structure (12). The battery (10) is provided with a cooling device comprising at least one heat pipe (1) configured to contain a heat transfer fluid intended to undergo evaporation and condensation cycles, the at least one heat pipe (1) is integrated on a base (13) of the closed structure (12) by overmolding, such that heat is taken through an evaporation end (4) of the heat pipe (1) arranged to be in contact with the battery cell (11) and heat is transferred through a condensation end (5) of the heat pipe (1) to a cold source (F) located outside the closed structure (12).
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: 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: 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: 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: 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: 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: EP4672442A1
A case (100) and a preparation method therefor, a battery (5), and an electric device. The case (100) includes a thermally conductive insulating layer (130). The thermally conductive insulating layer (130) is provided on at least part of an inner surface of the case (100). A thermal conductivity coefficient of the thermally conductive insulating layer (130) ranges from 0.03 W/mK to 10 W/mK, and a resistance of the thermally conductive insulating layer (130) at a high voltage of 1000 V ranges from 100 MΩ to 100 GΩ.
Resumen de: EP4671798A1
A battery diagnosis device according to an embodiment disclosed in the present document may comprise: an acquisition unit for acquiring open circuit voltage (OCV) data of multiple battery units; a deviation calculation unit for, on the basis of the OCV data, calculating an OCV change value of the multiple battery units in a designated time interval and calculating an OCV deviation value with respect to an average indicating a difference value between an average OCV change value of the multiple battery units and an OCV change value of a target battery unit among the multiple battery units; an exponential moving average (EMA) calculation unit for calculating an EMA deviation value by applying an EMA filter to the OCV deviation value with respect to the average of the target battery unit; and a diagnosis unit for diagnosing an abnormality of the target battery unit on the basis of the EMA deviation value.
Resumen de: EP4672450A1
A secondary battery is provided. The secondary battery includes an electrode assembly (100), a sub-plate assembly (310, 410) comprising a sub-plate (320, 420) connected to the electrode assembly 100) and a current collector (330, 430) coupled to the sub-plate (320, 420), and a terminal plate (380, 480) coupled to the current collector (330, 430). The terminal plate (380, 480) defines a recess(382, 482) (382, 482) in a top surface of the terminal plate (380, 480). The recess (382, 482) includes a first tapered part (384, 484) having a first inclination angle (384_A, 484_A) with respect to a direction parallel to the terminal plate (380, 480), and a second tapered part (386, 486) having a second inclination angle (386_A, 486_A) with respect to the direction parallel to the terminal plate (380, 480). The first inclination angle (384_A, 484_A) and the second inclination angle (386_A, 486_A) are different from each other.
Resumen de: WO2024191577A2
A lighting device energy storage (LDES) unit includes a LDES unit housing, a battery pack in the LDES unit housing, including a battery pack housing, a plurality of energy storage devices of a plurality of different types located in the battery pack housing, and a battery management system (BMS) unit electrically coupled to the plurality of energy storage devices and configured to manage an operation of the plurality of energy storage devices.
Resumen de: EP4672475A1
The present application provides a separator, a battery and an electric device. The separator comprises a porous base material, and a first coating and a second coating which are respectively located on the two surfaces of the porous base material; when the separator is used for a battery, the first coating faces a negative electrode, and the second coating faces a positive electrode; the first coating comprises first particles, the first particles comprise a solid electrolyte, and the content of the first particles in the first coating is greater than 50 wt%; the second coating comprises second particles, the second particles comprise inorganic particles capable of reacting with lithium dendrites, and the content of the second particles in the second coating is greater than 50 wt%.
Resumen de: EP4672403A1
Embodiments of the present application provide a secondary battery and an electric device. The secondary battery comprises a positive electrode sheet, a separator, and a negative electrode sheet; at least one of the positive electrode sheet, the separator, or the negative electrode sheet comprises an ion trapping agent; the reduction potential of the ion trapping agent relative to lithium metal is 0-2 V. The cycle performance of the secondary battery provided by the embodiments of the present application is improved.
Resumen de: EP4672405A1
The present application relates to a secondary battery and a preparation method therefor, and an electric device. The secondary battery comprises a positive electrode sheet, a negative electrode sheet, and an electrolyte. The positive electrode sheet comprises a positive electrode film layer; the positive electrode film layer comprises a positive electrode active material and a positive electrode electrolyte interface film; and the positive electrode electrolyte interface film comprises Li<sub>2</sub>MO<sub>4</sub>, wherein M comprises chalcogens. The electrolyte comprises a solvent and a lithium salt, and further comprises at least one of a lithium metal chelate and an additive capable of being combined with lithium ions to form a chelate. The secondary battery of the present application has low DCR, and has good rate performance and cycle performance.
Resumen de: EP4672381A1
A positive electrode material. The positive electrode material has the following chemical formula: LiaNixCoyMn1-x-yMbO2-cQc, wherein 0.2≤a≤1.2, x≥0.6, y>0, b>0, c>0, M comprises a high-valence cation, and Q comprises an anion. By doping a high-valence cation and an anion in a nickel-rich ternary positive electrode material, the bulk structure of the nickel-rich ternary positive electrode material under lithium deintercalation is stabilized, side reactions, lattice oxygen evolution and transition metal dissolution are reduced, and the cycling stability, the high-temperature storage performance and the rate capability are improved. In addition, the outer surface of the positive electrode material can be further coated with a selenium-containing substance coating layer (2), a selenium-containing substance in the selenium-containing substance coating layer (2) can react with residual lithium compounds on the surface of the positive electrode material, and the remaining selenium-containing substances can be combined with lattice oxygen released in a high-delithiation state to prevent an electrolyte solution from being oxidized. Moreover, a conductive substance coating layer (3) can be further prepared on the outer surface of the selenium-containing substance coating layer (2), thereby preventing direct contact between the selenium-containing substance and the electrolyte solution, and inhibiting side reactions.
Resumen de: EP4672460A1
An end plate, a case, a battery, an electric device, and an assembling method for the case. The end plate (10) comprises: a first plate (1), comprising a first connecting part (11), wherein the first connecting part (11) is arranged in a closed ring along the circumferential edge of the first plate (1) and is configured to form continuous sealing connection with an environment component; and a second plate (2), stacked with the first plate (1) in a first direction (X), wherein the second plate (2) comprises second connecting parts (21) spaced along the circumferential edge of the second plate (2). The first connecting part (11) of the first plate (1) is in continuous sealing connection with the environment component and is used for sealing the position where the end plate (10) and the environment component are connected, and the second connecting parts (21) of the second plate (2) are connected to the environment component respectively by means of connecting members (30) and is used for improving the strength of connection between the end plate (10) and the environment component. The end plate (10) has few parts and a simple structure, is convenient to connect with the environmental component, and has low cost and high reliability.
Resumen de: EP4672397A1
An electrode includes a substrate made of a metallic material, a first composite layer coated on a portion of a first surface of the substrate to form a first uncoated portion on a first end of the first surface, a second composite layer coated on a portion of a second surface of the substrate to form a second uncoated portion on a second end of the second surface, and a reinforcing film attached to a third end portion of at least one of the first composite layer or the second composite layer.
Resumen de: EP4672395A1
A battery includes: an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode and wound together; a case to accommodate the electrode assembly, and including a bottom portion, a sidewall portion connected to the bottom portion, and an opening at a side opposite to the bottom portion; and a cap assembly to seal the opening by being connected to one end of the sidewall portion of the case. A substrate of the second electrode extends and is wound to surround an outer circumference of the electrode assembly, and at least a portion of the outer circumference of the electrode assembly contacts the sidewall portion of the case.
Resumen de: EP4672413A1
The present application provides an electrolyte, a battery, and an electrical device, the electrolyte comprises a solvent and an electrolytic salt dissolved in the solvent, the solvent comprises a first solvent comprising an ether solvent, and the ether solvent has a molecular structure in which the α-carbon atom directly bonded to an oxygen atom in an ether-oxygen bond function group does not have a hydrogen atom directly bonded to the α-carbon atom.
Nº publicación: EP4672383A1 31/12/2025
Solicitante:
BYD CO LTD [CN]
BYD Company Limited
Resumen de: EP4672383A1
A power consuming device, comprising a secondary battery. The secondary battery comprises an electrode sheet, the electrode sheet comprises a current collector and a positive electrode active material disposed on the current collector. The current collector is used to carry an electrode active material and comprises a foil material and a conductive coating disposed on two opposite sides of the foil material. The conductive coating comprises a conductive material dense region and a plurality of recessed less adhesive regions arranged at intervals in the conductive material dense region, the conductive material dense region comprises a conductive material and a binder, and the conductive material comprises a granular conductive agent. At least part of each recessed less adhesive region does not comprise a binder, and at least part of the region does not comprise a granular conductive material.
BOPI
Sede Electrónica
