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1383
resultados
Última actualización
29/10/2025 [07:38:00]
Resultados 225 a 250 de 1383
Resumen de: WO2025220894A1
A battery management apparatus according to an embodiment of the present document may comprise: a conversion circuit configured to switch an electrical connection between a first battery pack and a second battery pack; and one or more processors which, on the basis of an operation mode of a battery system including the first battery pack and the second battery pack, determine a connection mode including a multi-connection mode or a single connection mode between the first battery pack and the second battery pack and a load connected to the battery system, and control the conversion circuit on the basis of the connection mode so as to manage the operation of the battery system.
Resumen de: WO2025220800A1
The present invention relates to a gel polymer electrolyte, a lithium metal battery comprising same, and a method for manufacturing a lithium metal battery comprising same. More specifically, the gel polymer electrolyte comprises: a liquid electrolyte; a lithium salt; a crosslinked polymer; and an additive including a polymer in which at least one functional group is connected to a hydrocarbon backbone, wherein the functional group includes a N-C=O bond, the additive has a weight average molecular weight of 1,000 to 100,000, and the concentration of the additive is 100-10,000 ppm.
Resumen de: WO2025220796A1
The present invention relates to a negative electrode for an all-solid-state battery and an all-solid-state battery including same, the negative electrode including a negative electrode coating layer including flat Si nanoparticles, a sulfide-based solid electrolyte, a conductive material, and a binder.
Resumen de: WO2025220801A1
The present invention relates to an electrode dry coating apparatus. This electrode dry coating apparatus comprises: a current collector supply unit which continuously supplies current collector foil by unwinding the current collector foil from a wound state; a coating unit which forms an electrode film which is to be coated on the current collector foil, while simultaneously passing the current collector foil therethrough and coating one surface of the current collector foil with the electrode film, wherein the coating unit comprises: a plurality of rolling rolls, some of which are arranged horizontally and the remainder of which are vertically arranged to have a ㄱ-shaped arrangement structure as a whole; and a first coating roll and a second coating roll which are installed under the lowermost rolling roll, and through which the electrode film formed by the rolling rolls and the current collector foil are passed and laminated; and a winding unit which winds a laminate that has passed through the coating unit. In the electrode dry coating apparatus of the present invention constructed as described above, a dry electrode film having uniform density and thickness may be continuously formed through multi-stage rolls arranged in horizontal and vertical directions and simultaneously may be laminated on current collector foil, thereby enabling the manufacture of a dry electrode having precise specifications.
Resumen de: WO2025218089A1
A battery cell cover plate (100), a battery cell (200), and a battery pack. The battery cell cover plate (100) comprises a cover plate body (10); the cover plate body (10) has a top surface (11) and a bottom surface (12) which are opposite to each other, and a liquid injection hole (13) is formed in the cover plate body (10); and the liquid injection hole (13) runs through from the top surface (11) to the bottom surface (12). The bottom surface (12) is configured to face a jelly roll (220); at least partial area of the bottom surface (12) is configured to be a flow guide surface (121); the flow guide surface (121) is adjacent to the liquid injection hole (13); and the flow guide surface (121) is inclined from the liquid injection hole (13) to a direction away from the top surface (11).
Resumen de: WO2025218074A1
A manufacturing method for a battery cell (100), a battery cell (100), a casing (10), a top cover (20), and an electrical device. The manufacturing method for a battery cell (100) comprises: providing a casing (10), such that the casing (10) has an open end, and the casing (10) has a first beveled edge area (11) at the open end; providing a top cover (20), such that the top cover (20) has a second beveled edge area (21), the second beveled edge area (21) matching the inclination angle of the first beveled edge area (11); fitting the top cover (20) to the open end of the casing (10), the second beveled edge area (21) and the first beveled edge area (11) being connected to form a butt joint seam, and the extension direction of the butt joint seam facing the top cover (20); welding the top cover (20) and the casing (10) along the butt joint seam, so that a welding melt pool bottom portion (100a) is located on the top cover (20). According to the manufacturing method for a battery cell (100), the battery cell (100), the shell (10), the top cover (20), and the electrical device, the melt pool bottom portion (100a) produced by welding the shell (10) and the top cover (20) is located on the top cover (20), which can reduce adverse effects caused when there is a defect in the melt pool bottom portion (100a), reduce damage to the strength of the casing (10) from a stress concentration point generated by an external force acting on the casing (10), and improve the strength of the welde
Resumen de: WO2025218207A1
Disclosed are an internal temperature measurement method and apparatus for a battery, and an electronic device and a storage medium. The method comprises: acquiring a surface temperature of a battery, and determining a temperature interval in which the surface temperature is located; when the surface temperature is in a first temperature interval, selecting from an excitation frequency selection section an excitation frequency corresponding to the surface temperature, wherein the excitation frequency selection section includes a plurality of excitation frequencies; generating an excitation signal on the basis of the excitation frequency corresponding to the surface temperature, and outputting the excitation signal to the battery, so as to acquire a response signal fed back by the battery in response to the excitation signal; determining a battery impedance of the battery on the basis of the excitation signal and the response signal; and determining an internal temperature on the basis of the battery impedance.
Resumen de: WO2025220802A1
The present invention relates to a battery pack, a battery management system, and a battery control method and, more specifically, to a battery pack comprising: a battery module including a stack cell including a plurality of first battery cells arranged along a first direction and at least one second battery cell overlapping the stack cell in the first direction; a charging element for charging the second battery cell; a discharge element for discharging the second battery cell; a pressure sensor for measuring the internal pressure of the battery module; and a control element for controlling charging and discharging of the second battery cell according to the internal pressure measured by the pressure sensor.
Resumen de: WO2025220799A1
The present disclosure relates to a battery and a method for manufacturing a battery, the method for manufacturing a battery, according to the present disclosure, comprising the following steps: preparing a case having an open part at one side and a closed part at the other side, that is opposite to the one side, the closed part having a cap plate; inserting an electrode assembly that is electrically connected to a terminal assembly into the case through the open part; connecting the terminal assembly to the cap plate; and injecting an electrolyte through the open part.
Resumen de: WO2025220851A1
A battery pack according to an embodiment of the present invention comprises: a case providing an inner space and having a pack cover; battery cells disposed inside the case; a partition wall for partitioning the inner space of the case; and melting bolts for fastening the pack cover and the partition wall, wherein the melting bolts are configured to melt at a specific temperature.
Resumen de: WO2025220821A1
Disclosed are a method and an electronic device for measuring the resistance of a target electrode, the method comprising the steps of: acquiring a chart related to the electrical conductivity of a target electrode according to changes in frequency after the target electrode has been immersed in an electrolyte for a predefined time or longer; determining a first point and a second point on the electrical conductivity graph of the target electrode, the graph being included in the chart; and measuring the resistance of the target electrode on the basis of the first point and the second point.
Resumen de: WO2025220888A1
A method of assembling a battery module or battery pack comprising a plurality of battery cells and a housing for holding the plurality of battery cells, the method comprising providing a battery cell comprising an electrode assembly, a case accommodating the electrode assembly, and a conductive lead connected to the electrode assembly and extending outside of the case, bending the conductive lead in accordance with a predetermined cell position of the battery cell in the housing, such that a distal portion of the conductive lead extends from a bent portion of the conductive lead at an angle with respect to a proximal portion of the conductive lead towards a lead terminal of the housing for the predetermined cell position, the proximal portion being in physical contact with the electrode assembly, and inserting the battery cell into the housing at the predetermined cell position
Resumen de: WO2025217984A1
The present application belongs to the field of positive electrode materials, and provides a lithium-rich lithium iron oxide material, and a preparation method therefor and the use thereof. The lithium-rich lithium iron oxide material comprises a particle of a core-shell structure, wherein the particle of a core-shell structure comprises a core, a first coating layer that coats the core, and a second coating layer that coats the first coating layer; the core is Li5FeO4, the first coating layer is a carbon layer, and the second coating layer is a mixed layer comprising polyoxyethylene and a lithium salt; and the mass ratio of the first coating layer to the core is (2:100) to (10:100), and the mass ratio of the second coating layer to the core is (3:100) to (13:100). The present application is conducive to improving the air stability of the lithium iron oxide material, and can also enhance the overall ionic conductivity of an electrode.
Resumen de: WO2025217978A1
A battery module and an energy storage module. The battery module comprises a housing assembly (1) arranged in the shape of a polygonal prism, wherein an external port (15) is arranged on a side wall of the housing assembly (1); a battery cell energy storage member (2), which is mounted inside the housing assembly (1); and an electrically conductive ring assembly (3), which is disposed inside the housing assembly (1) and electrically connected to the battery cell energy storage member (2), wherein an output external member (5) is connected to the electrically conductive ring assembly (3) by means of the external port (15).
Resumen de: WO2025218067A1
The present disclosure relates to the technical field of lithium batteries. Disclosed are a secondary battery and a manufacturing method therefor, a positive electrode sheet, a negative electrode sheet, and an electric device. A lithium iron phosphate positive electrode material, Li2NiO2 and Li5FeO4 are used as a positive electrode active material, and by adjusting a blending proportion and defining parameters such as the blending proportion, the capacity per gram of the active material, and an electrolyte injection coefficient to satisfy specific relationships, the capacity per gram and cycle performance of lithium iron phosphate batteries can be remarkably improved, enabling lithium ion batteries to have the advantages such as high energy density, good cycle performance, and high safety.
Resumen de: WO2025217983A1
A flame-retardant thin film and a preparation method therefor, a composite current collector and a battery. The flame-retardant thin film comprises a base film and a first flame-retardant layer on at least one side surface of the base film. The base film comprises a high-molecular polymer and a flame retardant, wherein the flame retardant comprises a bio-based flame-retardant material. The flame-retardant thin film is made of a bio-based flame-retardant material, is environmentally friendly, has good flame-retardant effects and a high thermal stability, and can significantly improve the flame-retardant performance of a current collector and the safety performance of a battery.
Resumen de: WO2025220786A1
A method for manufacturing an all-solid rechargeable battery, according to an embodiment, comprises: a step of allowing a first prismatic case having a concave first outer surface and a second prismatic case to face each other; a step of positioning an all-solid state cell including a positive electrode, a solid electrode layer, a negative electrode, and an elastic member, between the first prismatic case and the second prismatic case; and a step of deforming the first outer surface of the first prismatic case to be flat by fastening the first prismatic case and the second prismatic case to each other.
Resumen de: WO2025220607A1
The present invention provides a method for producing a sulfide solid electrolyte capable of continuously and stably producing a sulfide solid electrolyte exhibiting high lithium-ion conductivity. The present invention relates to a method for producing a sulfide solid electrolyte, the method comprising: preparing a sulfide solid electrolyte raw material based on stoichiometric ratio; supplying 0.1-20 mass% of a sulfur source relative to the total amount of the sulfide solid electrolyte raw material; heating and melting the sulfide solid electrolyte raw material; and cooling the obtained melt by contact with a cooling structure. The present invention also relates to a method for producing a sulfide solid electrolyte, the method comprising: preparing a sulfide solid electrolyte raw material based on stoichiometric ratio; heating and melting the sulfide solid electrolyte raw material; cooling the obtained melt by contact with a cooling structure; and obtaining a sulfide solid electrolyte in which the excess proportion of sulfur compared to the stoichiometric composition is 0.0-5.0 mass%.
Resumen de: WO2025220464A1
This electrochemical device comprises: a negative electrode that includes a magnesium-containing material; an electrolyte solution that includes lithium ions, magnesium ions, trifluoromethanesulfonic acid ions (TFO ions), and bis(trifluoromethanesulfonyl)imide ions (TFSI ions); and a positive electrode that includes a sulfur-containing material.
Resumen de: WO2025220299A1
Problem To provide: a fire spread prevention sheet having high heat-insulating and heat-resistant properties and capable of reducing drop-off of part of constituents of a heat-insulating material; a method of manufacturing the same; and a battery including the same. Solution The present invention relates to: a fire spread prevention sheet 1a placed at least between a plurality of heat sources, and capable of preventing fire spread by suppressing heat transfer to other heat sources when a heat source is in an overheated state, the fire spread prevention sheet 1a having a structure in which a resin sheet 2 and a heat insulation sheet 3 having a lower thermal conductivity than the resin sheet 2 are laminated, the resin sheet 2 having a hole 2b penetrating in the thickness direction and/or a recess 2a recessed inward from the outer surface of the sheet 2; a method of manufacturing the fire spread prevention sheet 1a; and a battery including the sheet 1a.
Resumen de: WO2025218097A1
An automatic grouping method for a power battery used in an electric vehicle, comprising the following steps: step 1, battery data collection; step 2, data storage and aggregation; step 3, battery information grouping: a computer groups batteries on the basis of a grouping condition and labels a termination voltage, discharge time, grouping information, and a date of each battery, and a battery meeting a screening condition is directly excluded; step 4, barcode printing and attachment; and step 5, battery screening and grouping. The batteries sequentially pass through a testing device to obtain the battery information; and the computer groups the batteries on the basis of the grouping condition, and divides the batteries into a plurality of large groups on the basis of the termination voltage data, and batteries in the same large group are divided into a plurality of small groups on the basis of the discharge time. By means of automatically grouping and attaching labels to the batteries by a machine device, the difficulty in battery grouping can be reduced, and the working efficiency of battery grouping is improved, thereby improving the battery production efficiency.
Resumen de: WO2025218085A1
The present application relates to a defective electrode sheet rejection method, a die cutting device, a winding device and a battery production system. The defective electrode sheet rejection method comprises the following steps: performing strip splicing trace detection on an electrode sheet material strip having a plurality of continuously distributed electrode sheet units; on the basis of detecting that the electrode sheet material strip has a strip splicing trace, marking two defect identifiers spaced apart by a first preset distance D1 at an upstream position of the strip splicing trace on the electrode sheet material strip; performing defect identifier detection on the electrode sheet material strip during the winding process thereof into an electrode assembly; and on the basis of detecting that the electrode sheet material strip has two defect identifiers, independently winding an electrode sheet unit having the defect identifiers and an adjacent electrode sheet unit located upstream of the electrode sheet unit having the defect identifiers. The defective electrode sheet rejection method in the present application can solve the problem in respect of relatively high loss in electrode sheet material strips, thereby reducing the production cost of batteries and lowering the defect rate of the batteries.
Resumen de: WO2025218053A1
A battery pack (100) and a battery module. The battery pack (100) comprises a case (1), a battery cell module (3) and a connecting assembly (4), wherein at least two cross beams (2) are provided in the case (1), two adjacent cross beams (2) are spaced apart from each other to form an accommodating space (20), and the battery cell module (3) is arranged in the accommodating space (20). At least one connecting assembly (4) is provided, and the connecting assembly (4) is configured to connect the two cross beams (2) which form the accommodating space (20), so as to restrict the deformation of the two cross beams (2) in directions away from each other.
Resumen de: WO2025220284A1
This method for recovering lithium from a metal-containing solution that contains lithium ions and nickel ions includes: a nickel extraction step for performing extraction that involves extracting and separating nickel ions in the metal-containing solution into a solvent; a lithium concentration step for concentrating the lithium-containing solution obtained after the extraction of the nickel extraction step, and obtaining a lithium concentrate having a lithium ion concentration higher than that of the metal-containing solution at the time of extraction during the nickel extraction step; and a lithium recovery step for recovering lithium from the lithium concentrate.
Nº publicación: WO2025220345A1 23/10/2025
Solicitante:
TOYOTA JIDOSHA KK [JP]
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Resumen de: WO2025220345A1
Provided is a power storage device of which the internal space utilization efficiency is improved. A power storage device (1) according to one embodiment of the present disclosure is provided with: a first battery cell and a second battery cell that are arranged in a first direction; and a reinforcement member (4) disposed between the first battery cell and the second battery cell. The first battery cell and the second battery cell are each provided with a pair of electrode terminals respectively disposed on a pair of surfaces opposite each other in the first direction. The power storage device (1) is provided with a conductive member that is connected to one of the pair of electrode terminals of the first battery cell. The conductive member overlaps the reinforcement member (4) when viewed from the vertical direction.
BOPI
Sede Electrónica
