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1488
results.
Updated on
17/07/2025 [07:21:00]
Results 625 to 650 of 1488
Absstract of: EP4583270A1
This application discloses a battery module, a battery, an energy storage apparatus, and an electric apparatus. The battery module includes a battery cell group and end plates. The battery cell group includes multiple battery cells stacked in a first direction. The end plate is located at an end of the battery cell group in the first direction. The multiple battery cells include at least one first battery cell, and the first battery cell includes a housing and an end cover. The housing has an opening in a second direction, the housing has first walls in the first direction, the first wall includes a first body portion and a first thickened portion arranged in the second direction, the first body portion is farther from the opening than the first thickened portion, and thickness of the first thickened portion is larger than thickness of the first body portion, the first direction and the second direction being perpendicular to each other. The end cover is connected to the housing to close the opening. In a direction from the first body portion towards the first thickened portion, at least a part of the first thickened portion exceeds the end plate. The technical solutions provided in this application can increase the reliability of batteries.
Absstract of: EP4583238A1
A battery pack may be provided. The battery pack may include a plurality of battery modules disposed along rows and columns; a plurality of slave battery management systems (BMSs) configured to disposed between two adjacent battery modules in each row of a plurality of rows among the plurality of battery modules, and configured to detect status information of the two battery modules; and a master BMS configured to receive status information of the plurality of battery modules through wireless optical communication with the plurality of slave BMSs, wherein two slave BMSs among the plurality of slave BMS may be configured to dispose at different heights.
Absstract of: EP4583239A1
A battery pack includes a battery module including battery cells, and busbars electrically connecting respective ones of the battery cells, and a circuit board connected to the battery module, and including a first part including wires, and extending in a length direction of the battery module, second parts extending from the first part in a direction crossing the first part, and including a circuit pattern including a fuse pattern configured to be opened based on an abnormal current, and a non-fuse pattern configured to maintain electrical connection with one or more of the busbars, and third parts respectively extending from the second parts, and connected to the busbars.
Absstract of: EP4583241A1
An immersion cooling system (100) for immersion cooling of a plurality of battery cells of a battery (114) of an electric vehicle using a dielectric cooling liquid is disclosed. The immersion cooling system (100) comprising: a fluid circuit (102) configured for at least the circulation of the dielectric cooling to, and from, the battery (114), the fluid circuit (102) having a first branch (108a) and a second branch (108b), the first branch (108a) being parallel to the second branch (108b); a first pump (104) positioned along the first branch (108a); a second pump (106) and a valve (116) positioned along the second branch (108b), the second pump (106) being, relative to the first pump (104), a high-flow, low-pressure pump; an inlet sensor (124) position at or around an inlet of the battery (114); an outlet sensor (126) positioned at or around an outlet of the battery (114); at least one processor (130); and a memory device (132) coupled to the at least one processor (130), the memory device (132) including instructions that when executed by the at least one processor (130) cause one or more of the at least one processor (130) to: determine, using at least information from one or more of the inlet sensor (124) and the outlet sensor (126), whether at least one characteristic of the dielectric cooling liquid satisfies a threshold value; generate one or more signals, if the at least one characteristic of the dielectric cooling liquid does not satisfy the threshold value, to operat
Absstract of: EP4582283A1
The disclosure relates to a motor drive system with an external discharge function, and a vehicle including same. The motor drive system provides, through an alternating current output interface (230), an alternating current output for external discharge, and the alternating current output interface (230) includes a first output terminal (280) and a second output terminal (290). The motor drive system includes: a battery module (110), a bridge arm module (120), an inductor module (210), a capacitor module (220), and a switching module. The battery module (110) has a battery voltage, and is provided with a battery output terminal (X) at an intermediate voltage position of the battery voltage, and the battery output terminal (X) is connected to the first output terminal (280); the bridge arm module (120) is connected in parallel with the battery module (110); one terminal of the inductor module (210) is connected to the second output terminal (290), and the other terminal is connected to the bridge arm module (120); and one terminal of the capacitor module (220) is connected to the second output terminal (290), and the other terminal of the capacitor module (220) is connected to the first output terminal (280). In the disclosure, when a vehicle is not equipped with an OBC, the external discharge function of the vehicle is implemented by controlling turn-on/turn-off of the bridge arm module (120) and the switching module.
Absstract of: EP4583231A1
The present application provides an electrolyte for a sodium secondary battery, a sodium secondary battery, and an electric device. The electrolyte for a sodium secondary battery comprises a diluent, and the diluent comprises an alkyl alkoxy silane compound. According to the present application, adding a diluent comprising an alkyl alkoxy silane compound into an electrolyte can reduce gas production of batteries at high temperatures, and improve the safety of the batteries.
Absstract of: EP4583225A1
The present application relates to a secondary battery and a power consuming device comprising same. The secondary battery comprises a negative electrode plate and a separator, wherein the negative electrode plate comprises a negative electrode current collector and a negative electrode film layer provided on at least one side of the negative electrode current collector; and with the capacity per unit area of the negative electrode film layer being denoted as C, and the pore volume per unit area of the separator being denoted as V, the secondary battery satisfies: 0.05 cm<3>/Ah ≤ V/C ≤ 0.3 cm<3>/Ah, where C is in mAh, and V is in cm<3>. The secondary battery has a good cycling performance.
Absstract of: EP4583303A1
The present invention relates to a secondary battery and a method for manufacturing the secondary battery, and relates to a secondary battery, which is capable of tightly coupling a safety vent and a current interrupt device (CID) to each other so that a leak path of an electrolyte or the like in the secondary battery is prevented from generating in a coupling part for the safety vent and the current interrupt device to improve quality of the battery, and which enables easy recognition of a weak coupling defect through an X-ray test or the like even when the safety vent and the current interrupt device are weakly coupled, so that the defect is prevented from occurring, and a method for manufacturing the secondary battery.
Absstract of: EP4582779A1
This application pertains to the field of batteries and provides a temperature sampling assembly (30), a battery (1), and an electric apparatus. The temperature sampling assembly (30) includes a sampling circuit board (31), a temperature sensing chip (32), and a heat conducting base (33). The sampling circuit board (31) includes a sampling part (311). The temperature sensing chip (32) is mounted at the sampling part (311) and is electrically connected to the sampling circuit board (31). The heat conducting base (33) includes a first side (331) and a second side (334) opposite each other in a thickness direction (y). The first side (331) is fixedly adhered to the sampling part (311) through a fixing adhesive (34). The second side (334) is configured to be connected to a to-be-sampled component. The temperature sampling assembly (30) can be assembled independently of the to-be-sampled component. At least one side of the sampling part (311) can be flexibly coated with the fixing adhesive (34), so that at least one side of the sampling part (311) can be reliably fixed to the heat conducting base (33) through sufficient fixing adhesive (34), thereby reducing the risk of excessive loss and denaturation of the fixing adhesive (34) under high temperatures, reducing the risk of the sampling part (311) and the temperature sensing chip (32) detaching from the heat conducting base (33), reducing the risk of sampling accuracy decrease or sampling data loss of the temperature sampling asse
Absstract of: EP4583247A1
A method and a system for recycling a metal from a lithium secondary battery are provided. In the method for recycling a metal from a lithium secondary battery, a cathode active material mixture containing lithium is prepared. A lithium precursor is produced by reducing the cathode active material mixture. A lithium precursor aqueous solution is formed by dissolving the lithium precursor in water. The lithium precursor aqueous solution is passed through an aluminum adsorption resin column to adsorb aluminum to the aluminum adsorption resin column. A first treatment liquid including distilled water is injected into the aluminum adsorption resin column at a flow rate of 100 L/hr to 1,200 L/hr to obtain a regenerated aluminum adsorption resin column from which aluminum is desorbed.
Absstract of: EP4583177A1
A method of manufacturing an electrode includes applying a first liquid composition containing a first solvent and polymerizable compounds to a substrate, reacting the first liquid composition, removing the first solvent to form an insulating resin layer, applying a second liquid composition containing an active material and a second solvent to the substrate, and removing the second solvent composition to form an electrode composite layer, wherein the removing the first solvent and the removing the second solvent are conducted at the same time.
Absstract of: EP4583359A1
A method and apparatus for setting a battery pack identifier may be provided. The apparatus for setting a battery pack identifier of a battery pack may include, a first supply configured to supply a power source voltage through a first pin; a second supply configured to supply a ground voltage through a second pin; a plurality of analog-to-digital converters configured to have an input pin and an output pin, and configured to transmit a voltage corresponding to a voltage input through the input pin to the output pin; a plurality of jumper wiring configured to connect input pins of the plurality of analog-to-digital converters with the first pin or the second pin, respectively; and a controller configured to set the battery pack identifier of the battery pack based on the voltages received through the output pin of each of the plurality of analog-to-digital converters.
Absstract of: EP4583244A2
A failure detection method for battery racks (100, 400) is disclosed and includes: sensing temperature data of the battery racks (100, 400) and using the temperature data to compute a temperature slope, a maximum temperature, and a minimum temperature of multiple temperature feature data; continuously computing temperature difference data of the temperature data in a computation frequency and using the temperature difference data to compute a Z score; setting a first, a second, a third, and a fourth discrete score respectively to the maximum temperature, the minimum temperature, and the Z score; adding up the first, second, third, and fourth discrete scores to obtain a grading value; and, evaluating whether the battery racks (100, 400) are at an abnormal state according to the grading value, and generating an alarm message when the battery racks (100, 400) are at the abnormal state.
Absstract of: WO2025098005A1
A cells contact system, comprising: a busbar assembly (a), configured to be electrically connected to a plurality of battery cells (01); and a cells contact system support (b), comprising a fixing support (4) and a mounting frame (5) which are separately arranged. The two ends of the busbar assembly (a) are mounted to the fixing support (4), and the middle part of the busbar assembly (a) is mounted to the mounting frame (5). A battery module comprising the cells contact system.
Absstract of: EP4583233A1
A separator film cutter includes a melt cutting unit configured to produce a melting portion by locally heating a separator film, with a tensile force being applied to opposite ends of the separator film, to cut the separator film, a driver configured to drive the melt cutting unit to selectively contact the separator film, and a controller configured to control the driver to heat the separator film by causing the separator film and the melt cutting unit to be in contact for a predetermined time.
Absstract of: EP4583314A1
The present disclosure provides a battery assembly that solves the problem of low space utilization of battery assembly in the prior art. The battery assembly includes a circuit board, a male connector, a female connector, a wire, and a battery. The wire is electrically connected to the male connector. The battery includes a step structure. The circuit board is provided on the step structure and is electrically connected to the battery. The female connector is provided on the circuit board and is electrically connected to the circuit board, and the male connector is capable of being plugged into the female connector. When the male connector is plugged into the female connector, the female connector is electrically connected to the male connector. The present disclosure may effectively improve space utilization and simplify the assembly process of battery assembly.
Absstract of: EP4582569A2
A battery crushing method includes cooling a battery, which is kept in a gaseous environment, to an electric discharge temperature ranging from -60 °C to 0 °C; and after cooling, crushing the battery at a crushing temperature to form a plurality of crushed particles. The crushing temperature is not greater than a temperature ranging from -10 °C to 10 °C.
Absstract of: WO2025143789A1
In relation to a tabless secondary battery to which a cylindrical electrode assembly using an end of an electrode sheet, which is not coated with an active material, as an electrode tab is applied, the present invention provides an electrode assembly structure capable of preventing the risk of short-circuiting in a core section of the electrode assembly and additionally securing a current path in the core section to reduce the amount of heat generated due to internal resistance, and a cylindrical secondary battery to which the electrode assembly is applied. The core section of the electrode sheet is provided with a plateau which protrudes outward in the axial direction beyond a cutting groove defining a division tab and extends in the longitudinal direction. The division tab is bent inward in the radial direction. While in the unbent state, the upper end of the plateau contacts and is electrically connected to the division tab.
Absstract of: WO2025143570A1
A battery according to an embodiment of the present invention may comprise: an electrode assembly including a first non-coating portion extending on a first surface thereof, wherein the first surface is configured to include a first region covered by the first non-coating portion and a second region not covered by the first non-coating portion; a battery housing configured to accommodate the electrode assembly through an opening formed on one side of the battery housing; and a current collector which is disposed on the first surface of the electrode assembly to be configured to be electrically connected to the electrode assembly, and has a current collector opening portion formed in a region of the electrode assembly, the region corresponding to the second region of the electrode assembly.
Absstract of: WO2025143571A1
A battery according to an embodiment of the present invention may comprise: an electrode assembly having a wound structure around the winding center hole thereof; a battery housing configured to accommodate the electrode assembly through an opening provided at one side thereof; a battery cover configured to cover the opening of the battery housing and provided with a venting part which is configured to be broken when the internal pressure of the battery housing exceeds a reference venting pressure; and a core support inserted into the winding center hole of the electrode assembly to increase the rigidity of the core part of the electrode assembly, and configured to guide the discharge direction of gas generated inside the electrode assembly toward the venting part.
Absstract of: WO2025143790A1
The present invention relates to a copolymer, an anode slurry comprising same, an anode and a secondary battery, the copolymer comprising, on the basis of 100 mol% of the total weight of the copolymer, 65-99 mol% of an acrylic acid-based monomer unit or a combination of an acrylate-based monomer unit and an acrylic acid-based monomer unit and 1-35 mol% of a vinyl alcohol-based monomer unit or a combination of a vinyl acetate-based monomer unit and a vinyl alcohol-based monomer unit, and having a number average molecular weight of 150,000-230,000.
Absstract of: WO2025143711A1
The present application relates to an anode active material, an anode composition, a lithium secondary battery anode comprising same, and a lithium secondary battery comprising the anode.
Absstract of: WO2025140640A1
A battery collision processing method, device, and system, a computer program, and a computer readable medium, relating to the technical field of battery collision processing. The method comprises: acquiring collision signals collected by a plurality of collision sensors (120) arranged at different positions on a power battery (S101); determining collision information of the power battery on the basis of the collision signal collected by each of the collision sensors (120) (S102); uploading the collision information to a cloud, so that the cloud determines a vehicle end processing strategy for a vehicle end on the basis of the collision information (S103); and receiving and executing the vehicle end processing strategy sent by the cloud (S104). By detecting collision signals of a power battery at a vehicle end, a cloud can determine a corresponding vehicle end processing strategy on the basis of the collision position and the collision strength when the power battery experiences a collision, so that the vehicle end can timely execute the corresponding vehicle end processing strategy, to perform targeted processing on the power battery having experienced a collision, thereby minimizing the collision risk of the power battery and ensuring the safety of users using a vehicle.
Absstract of: WO2025140037A1
The present disclosure provides a composite negative electrode sheet and a use thereof in a solid-state battery. The composite negative electrode sheet comprises a silicon active material and a metal compound, and in the process of silicon lithiation, a ternary Zintl phase Li-M-Si and an ionic conductive phase lithium compound are formed, wherein the mass ratio of the metal compound to the silicon active material is 5%-30%. According to the technical solution, by compounding the silicon active material with the metal compound, the ternary Zintl phase Li-M-Si can be formed in situ within a silicon-based negative electrode. The ternary Zintl phase has a stable structure, which can alleviate the volume expansion problem of silicon and enhance cycle stability. In addition, the lithium compound is formed to act as an ionic conductive phase, accelerating ion transport, enhancing lithium-ion transport kinetics, and improving the rate performance of batteries.
Nº publicación: WO2025140138A1 03/07/2025
Applicant:
XIAMEN AMPACK TECH LIMITED [CN]
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Absstract of: WO2025140138A1
Disclosed in the present application are an electrochemical device, a battery pack and an electrical apparatus. The electrochemical device comprises a casing and an electrode assembly accommodated in the casing; the electrode assembly comprises a first electrode sheet, a second electrode sheet and a separator, the first electrode sheet, the separator and the second electrode sheet being stacked and wound in a winding direction; the first electrode sheet comprises a first current collector and a first active substance arranged on the first current collector; the first current collector comprises a first main body area and a first empty foil area, the first active substance being arranged in the first main body area; the electrochemical device is configured to: in response to placing the electrochemical device having a SOC of 100% in a first ambient temperature for a first duration, perform a discharge operation at a first discharge rate in the first ambient temperature, and keep the discharge operation until the SOC of the electrochemical device is 90%, the minimum voltage value of the electrochemical device being greater than or equal to 2V, the first ambient temperature being -20°C-0°C, the first duration being greater than or equal to 6 hours, and the first discharge rate being greater than or equal to 10C.
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