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1832
resultados
Última actualización
05/07/2025 [08:21:00]
Resultados 600 a 625 de 1832
Resumen de: WO2025143872A1
The present specification relates to an electrode, and a lithium secondary battery and a battery pack comprising same, the electrode comprising an electrode current collector layer, an electrode active material layer, and a functional layer interposed between the electrode current collector layer and the electrode active material layer, wherein the functional layer includes a specific kind of flame retardant binder and has a limiting oxygen index of 30% or more. The electrode according to the embodiment can ensure battery characteristics while preventing thermal runaway.
Resumen de: WO2025143874A1
The present specification relates to: an electrode slurry, an electrode comprising same, a lithium secondary battery, and a battery pack, the electrode slurry comprising an electrode active material, a conductive material, a binder, a solvent for slurry formation, and a flame retardant material, wherein the flame retardant material has solubility of less than 10 mg/cc at 20°C in a carbonate-based solvent and comprises a specific type of compound. The electrode according to the embodiment can ensure battery characteristics while preventing thermal runaway.
Resumen de: WO2025143821A1
Provided are: a cathode material capable of improving the battery characteristics of an all-solid-state battery; an all-solid-state battery; and a method for producing the cathode material. The cathode material for an all-solid-state battery according to the present invention comprises a lithium transition metal oxide, a solid electrolyte, and carbon nanotubes, wherein at least one carbon nanotube among the carbon nanotubes has a length of at least 100 µm.
Resumen de: WO2025138650A1
A cabinet body (1), an energy storage apparatus (20), and an electric device (10). The cabinet body (1) comprises a housing (11) and a partition plate assembly (12), and the housing (11) encloses an accommodating cavity (11A); the partition plate assembly (12) is disposed in the accommodating cavity (11A) and divides the accommodating cavity (11A) to form a first cavity (11B) and a second cavity (11C); and the first cavity (11B) is used for accommodating an electric appliance component, and the second cavity (11C) is used for accommodating a battery.
Resumen de: WO2025138751A1
A method for stripping electrode sheets from a waste battery. The method comprises: stripping a mixed system comprising electrode sheets of a waste battery and a water-containing solvent under the assistance of ultrasound and ozone, and separating current collectors and electrode active materials from the electrode sheets. The present invention further comprises a solution of deeply removing impurities from the stripped electrode materials. A positive electrode active material of the battery is subjected to alkali leaching for aluminum removal, shearing ozone-assisted fluorine removal and the degradation of a residual electrolyte solution to obtain a high-purity positive electrode active material. The purposes of the deep removal of copper and the removal of residual organic electrolytes from a negative electrode active material can be achieved by means of acid leaching for copper removal and ozone oxidation. By adding a fluorine removal agent to a fluorine-containing and lithium-containing solution generated in the process of shearing fluorine removal, fluorine ions are converted into a stable precipitate, and therefore the generation of a harmful fluorine-containing gas is effectively prevented; and slightly-soluble LiF is converted into a lithium salt solution with a relatively high solubility, and then an Li2CO3 product is obtained by means of subsequent carbonization and decarburization reactions. The present invention further relates to a device capable of achieving the
Resumen de: WO2025138689A1
Disclosed in the present application are a metal foil, a circuit board, a copper-clad laminate, a negative electrode material for a battery, and a battery. The metal foil comprises a first surface and an opposing second surface; a plurality of protrusions are present on the second surface, the maximum vertical height of the protrusions is 0.2-3 μm, and the average grain size of metal grains in the protrusions is 0.05-1.5 μm. With respect to the metal foil, circuit board, copper-clad laminate, negative electrode material for a battery, and battery of the present application, by means of the design of the protrusions and the average grain size on the metal foil, the metal foil is made to have good corrosion resistance, side corrosion of a circuit can be mitigated, product yield is effectively improved, and the electrical performance of a circuit board is further ensured.
Resumen de: WO2025144383A1
The invention relates the inventive li-ion battery pouch type cell cassette gluing unit (1) which comprises, within its structure, an adhesive spraying module (1.1), which performs the process of spraying adhesive liquid evenly and homogeneously by using the signals from the system when the cell cassettes are positioned in the desired position; a Y-axis motion module (1.2) providing vertical movement of the gluing unit (1) and an X-axis motion module (1.3) providing horizontal movement of the gluing unit (1).
Resumen de: WO2025143749A1
The present invention relates to surface modification of a positive electrode active material of a secondary battery and, more particularly, to a method for suppressing an electrochemical side reaction between an electrolyte and a positive electrode active material by coating the positive electrode active material with an insulating polymer having insulating properties, and to a positive electrode active material and a lithium secondary battery prepared therefrom. According to the present invention, stability and lifespan characteristics of the lithium secondary battery can be improved.
Resumen de: WO2025143770A1
Provided are a battery cell stacking assembly and a method for manufacturing same. A battery cell stacking assembly according to one aspect of the present specification comprises: a plurality of plate-shaped battery cells stacked in a horizontal first direction; and side beams coupled to one side and the other side of the plurality of plate-shaped battery cells in the horizontal first direction.
Resumen de: WO2025143737A1
The present invention relates to a secondary battery fixing jig, which comprises: a mounting plate including an electrically insulating material and provided to have a secondary battery mounted thereon; a plurality of terminal connection parts each provided to be in direct contact with and electrically connected to one electrode terminal among a plurality of electrode terminals; a bus bar mounted on the mounting plate and provided to electrically connect electrode terminals having the same polarity among the plurality of electrode terminals of the secondary battery; and at least one terminal fixing member configured to be movable along the bus bar and provided to electrically connect, on the bus bar, an electrode terminal having the same polarity as the electrode terminal connected to the terminal connection part.
Resumen de: WO2025143774A1
Provided are a gripper and a method for manufacturing a battery pack by using same. The gripper according to an embodiment, which is for transporting, to a pack housing, a battery cell stack assembly including multiple flat battery cells stacked in a horizontal first direction and side beams coupled to one side and the other side in the horizontal first direction of the multiple flat battery cells, may include: a base disposed above the battery cell stack assembly; a suction part disposed on the lower side of the central area of the base to suck onto the battery cell stack assembly; and lift pins protruding below the base and coupling to grip holes formed in the side beams in the vertical direction.
Resumen de: WO2025138646A1
The present application provides a battery pack packaging structure. The battery pack packaging structure comprises a pallet structure and a cover body; the pallet structure comprises a pallet body and a support portion, at least part of the support portion protruding from the periphery of the pallet body in the plane extension direction of the pallet body, and the support portion being fitted with the pallet body to form a groove located on the periphery of the pallet body; the cover body is provided on a first side of the pallet body; a cavity is formed in the side of the cover body facing the pallet body; a battery pack is located on the first side of the pallet body and is received in the cavity; at least part of the cover body is lapped within the groove, and the pallet body is received in the cavity.
Resumen de: WO2025138599A1
The present invention belongs to the technical field of battery pack structures, and specifically relates to a battery pack having a cover plate cooling function. The present invention provides a battery pack having a cover plate cooling function, which, by means of arranging a hollow insertion plate unit and a liquid blocking plate unit on a pipe-equipped housing unit, can achieve: 1. the hollow insertion plate unit being able to perform more ample cooling on either side and above a battery cell, ensuring higher liquid cooling efficiency and a larger effective liquid cooling area; and 2. the liquid blocking plate unit being able to perform organized flow guidance within the hollow insertion plate unit, preventing slow-moving flows over a large area and ensuring liquid cooling strength at a higher efficiency.
Resumen de: WO2025138562A1
The present application relates to the technical field of vehicles, and discloses a battery state of health determining method and apparatus, a battery management system, and a storage medium. In the method, the current inherent capacity of each battery cell is first determined on the basis of the current remaining power of each battery cell in a battery system and the current discharge capacity of the battery system, and then the current state of health of the battery system is determined on the basis of the current inherent capacity of each battery cell and a nominal capacity. In view of the above, in the method, during determining the state of health of the battery system, the current data is used, such that the problem of error accumulation over time is avoided, and then the accuracy of determining of the state of health of the battery system can be improved.
Resumen de: EP4579926A1
Disclosed herein relates to an electrode lead welding method for welding electrode leads of a cell assembly including a plurality of cells, including: preparing a cell stack with a plurality of stacked cells from which electrode leads are drawn out; preparing a busbar frame provided with a lead connection part including a pair of lead slits spaced apart at a predetermined distance; coupling a cell stack and a busbar frame such that electrode leads of the cell stack are inserted through the lead slits; bending the electrode leads penetrating through the lead slits of the lead connection part so that the electrode leads overlap towards each other; and welding the pair of overlapped electrode leads, wherein the lead connection part comprises an insertion groove between a pair of lead slits, wherein the method further comprises inserting a welding protection bar into the insertion groove prior to the welding step, wherein the welding protection bar is inserted into the insertion groove to be spaced apart at a predetermined distance from the rear surface of the electrode lead.
Resumen de: EP4579871A1
Disclosed is a battery module. A battery module according to an embodiment of the present disclosure may include: a case configured to provide an inner space; a plurality of battery cells positioned inside the case and stacked in a left-right direction; an extinguishing tank positioned between the plurality of battery cells and the case and configured to provide an inner space; an extinguishing pipe communicating with the extinguishing tank and extending in the left-right direction; a spray nozzle communicating with the extinguishing pipe and protruding toward the plurality of battery cells; and a sealing member configured to seal the spray nozzle.
Resumen de: EP4579908A1
There is provided a battery pack with lower material cost, simple structure and higher energy density. The battery pack according to an aspect of the present disclosure includes a plurality of posts; a plurality of steel bars connecting the posts facing each other among the plurality of posts and assembled in multiple layers along a height direction of the posts; a plurality of trays situated on the steel bars to form each layer; and a plurality of cell module assemblies situated on the tray of each layer.
Resumen de: EP4579786A1
The present disclosure provides an electrode, a secondary battery, and an electric device. The electrode comprises a lithium replenishment layer. The lithium replenishment layer comprises a lithium replenishment agent and a conductive agent, and the ratio of the total surface area of the conductive agent in the lithium replenishment layer to the total surface area of the lithium replenishment agent in the lithium replenishment layer is (0.5-5):1. The ratio of the surface areas of the lithium replenishment agent and the conductive agent in the lithium replenishment layer meet a certain condition, such that the lithium replenishment layer not only achieves a good lithium replenishment effect, but also has good conductivity.
Resumen de: EP4579787A2
The present disclosure provides a positive electrode sheet for a sodium ion battery, a sodium ion battery, and a device. The positive electrode sheet comprises a positive electrode current collector and a sodium replenishment layer and a positive electrode coating sequentially laminated on at least a side of the positive electrode current collector. The sodium replenishment layer comprises a sodium-rich transition metal oxide sodium replenishment agent. The positive electrode coating comprises a sodium positive electrode active material and a sacrificial positive electrode sodium replenishment agent that is decomposable to produce a gas. By introducing the two types of positive electrode sodium replenishment agents into the positive electrode sheet and arranging in layers as above, many problems caused by using them alone are alleviated, to ensure that the energy density of the battery is improved without obviously increasing the battery impedance, and improve the sustainable discharge capacity of the battery.
Resumen de: EP4579813A1
The present disclosure provides a positive electrode active material, a positive electrode, a battery, and a device. The positive electrode active material comprises a first lithium iron manganese phosphate particle and a second lithium iron manganese phosphate particle. The particle size D<sub>50</sub> of the first lithium iron manganese phosphate particle is less than the particle size D<sub>50</sub> of the second lithium iron manganese phosphate particle. The Mn/(Mn+Fe) molar ratio in the first lithium iron manganese phosphate particle is x, the Mn/(Mn+Fe) molar ratio in the second lithium iron manganese phosphate particle is y, and x>y. The positive electrode active material of the present disclosure comprises two kinds of lithium iron manganese phosphate particles having different particle size ranges and different manganese contents in combination. The first lithium iron manganese phosphate particle of small particle size particle having a high manganese content supports the instantaneous high-power output of the battery in the process of high-rate discharge, to improve the rate performance of the battery. The second lithium iron manganese phosphate particle of large particle size having a low manganese content improves the capacity per gram of the active material, enhances the compaction density, and increases the energy density of the battery.
Resumen de: EP4579822A1
Disclosed herein are an electrode assembly for a lithium secondary battery and a lithium secondary battery including the same. The electrode assembly includes a negative electrode including a negative electrode current collector having one end portion on which a negative electrode tab is formed and a negative electrode active material layer positioned on at least one surface of the negative electrode current collector, and a positive electrode including a positive electrode current collector having one end portion on which a positive electrode tab is formed and a positive electrode active material layer positioned on at least one surface of the positive electrode current collector, wherein, in each of the negative electrode and the positive electrode, a region with a high current density and a region with a low current density are present when a voltage is applied to the electrode assembly, and a hole area ratio in the region with a high current density is greater than that in the region with a low current density.
Resumen de: EP4580073A1
The present disclosure relates to a battery management system, a battery pack including the same, and an operating method of the battery management system, and is directed to providing a battery management system capable of always maintaining the performance of wireless communication at a certain level or higher in various environments, a battery pack including the same, and an operating method of the battery management system. To this end, the present disclosure provides a battery management system including a plurality of antennas, a communication module configured to perform communication using any one of the plurality of antennas, a switch configured to selectively connect any one of the plurality of antennas and the communication module, and a processor configured to detect reception sensitivity of the antenna connected to the switch and control the switch based on the reception sensitivity.
Resumen de: EP4579898A1
A battery explosion-proof structure, a battery, and a battery pack are provided. The battery explosion-proof structure includes a cover plate (110) provided with a first score (111) and a second score (112). A thickness of the cover plate (110) at the first score (111) is less than a thickness of the cover plate (110) at the second score (112). The first score (111) includes a first segment (1111) and a second segment (1112) connected together. The first segment (1111) includes a first end (1113) and a second end (1114). The second segment (1112) includes a third end (1115) and a fourth end (1116). A distance between the first end (1113) and the third end (1115) is greater than a distance between the second end (1114) and the fourth end (1116).
Resumen de: EP4579892A1
An electrode terminal (20) includes a first portion (21) and a second portion (22) arranged in a first direction (X). The first portion (21) is connected to the electrode assembly (10) and has a first connection region (211), and the second portion (22) is connected to the electrode assembly (10) and has a second connection region (221). The sealing member (30) is connected to the electrode terminal (20) and disposed on one side of the electrode assembly (10) in a second direction (Y), and the first direction (X) is perpendicular to the second direction (Y). In an extension direction of the electrode terminal (20), the first connection region (211) has a first edge (2111) away from the sealing member (30) and a second edge (2112) close to the sealing member (30), and the second connection region (221) has a third edge (2211) away from the sealing member (30) and a fourth edge (2212) close to the sealing member(30), where a minimum distance between the first edge (2111) and the third edge (2211) is Di, a minimum distance between the second edge (2112) and the fourth edge (2212) is D<sub>2</sub>, and at least one of D<sub>1</sub> or D<sub>2</sub> is greater than 0. In this application, tension regions of the electrode terminal (20) and the electrode assembly (10) are separated, improving the reliability of the secondary battery (100).
Nº publicación: EP4579989A1 02/07/2025
Solicitante:
PYLON TECH CO LTD [CN]
Pylon Technologies Co., Ltd
Resumen de: EP4579989A1
The present disclosure provides a current distribution method and an analog circuit. The method includes: determining, according to a total quantity of battery clusters of a plurality of battery clusters connected in parallel in a battery energy storage system, a distribution proportion constraint interval set for each battery cluster; determining, according to a battery-cluster parameter, a current distribution target proportion set for each battery cluster, where the current distribution target proportion is within the distribution proportion constraint interval, and the battery-cluster parameter includes at least one of the following: a present remaining capacity of the battery cluster, a capacity set critical value and the distribution proportion constraint interval; and distributing current to various battery clusters according to the current distribution target proportion. The present disclosure can ensure battery clusters with different capacities to quickly reach balance during operation, thus achieving an effect of improving stability and reliability of the battery energy storage system.
BOPI
Sede Electrónica
