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1839
resultados
Última actualización
25/06/2025 [08:05:00]
Resumen de: WO2025126423A1
The purpose of the present invention is to provide a lithium secondary battery comprising a sulfur-containing positive electrode active material, wherein a means for improving the capacity of the lithium secondary batteries is provided. One embodiment of the present invention is a positive electrode material: comprising: a positive electrode active material containing sulfur; and porous carbon. At least a portion of the positive electrode active material is packed into the pores of the porous carbon, and at least a portion of the outer pore surface of the porous carbon is exposed.
Resumen de: WO2025126420A1
This battery pack includes: a holding member for holding a plurality of batteries; a layered battery in which a plurality of batteries are stacked in a layering direction via the holding member; and a ventilation passage that extends in the layering direction direction adjacent to the layered battery and forms a flow passage for cooling air for cooling the plurality of batteries. The ventilation passage has an intake port for taking cooling air into the ventilation passage. The holding member has ventilation holes that open to the ventilation path side and the opposite side from the ventilation path and serve to circulate cooling air from the ventilation path to the layered battery. The ventilation holes include bottom surface ventilation holes that open toward a space formed between the bottom surfaces of the plurality of batteries and the bottom surface of the holding member.
Resumen de: WO2025123541A1
A polyolefin microporous membrane, and a preparation method therefor and the use thereof. The polyolefin microporous membrane comprises a core layer and a surface layer arranged on a surface of the core layer, wherein the average long diameter of micropores in the surface layer is D1, the average pore diameter of the polyolefin microporous membrane is D0, and the ratio of D1 to D0 is greater than or equal to 6. Since the ratio of the average long diameter of the micropores in the surface layer to the average pore diameter of the polyolefin microporous membrane is greater than or equal to 6, the surface layer has better wettability compared with the core layer, which is beneficial to the wetting and spreading of a polar adhesive on the surface layer of a separator and is conducive to improving the peel strength of the polyolefin microporous membrane, thereby facilitating the surface modification of the separator, and avoiding any influence on the cycle performance of a secondary battery.
Resumen de: WO2025123758A1
A cover cap assembly (001), a battery cell, and a battery, relating to the technical field of batteries. The cover cap assembly (001) comprises a cover cap (012); the cover cap (012) comprises a top cover (121) and an explosion-proof piece (122); the top cover (121) has a first side surface and a second side surface which are arranged opposite to each other, the explosion-proof piece (122) being partially attached to the first side surface; the periphery of the explosion-proof piece (122) is provided with an edge part (1222); the edge part (1222) is arranged at the periphery of the top cover (121), the plane where the top surface of the edge part (1222) is located not exceeding the plane where the second side surface is located.
Resumen de: WO2025123590A1
A sodium-ion battery cell, a battery and an electric device. The sodium-ion battery cell comprises a positive electrode sheet and a negative electrode sheet which are oppositely arranged, wherein the positive electrode sheet contains a sodium layered metal oxide, the negative electrode sheet contains hard carbon, and the distance between the positive electrode sheet and the negative electrode sheet is 15-45 μm. The distance between a positive electrode sheet and a negative electrode sheet in a sodium-ion battery cell is set to be 15-45 μm, and the use of the distance range can allow a small amount of heat to be transferred to the positive electrode sheet after the negative electrode sheet, which contains hard carbon, generates heat, the transferred heat has little impact on the stability of a sodium layered metal oxide material in the positive electrode sheet, and the negative electrode sheet is not prone to rapidly accumulating heat. In this way, thermal runaway is unlikely to occur between the positive electrode sheet and the negative electrode sheet, so that the safety performance of sodium-ion batteries can be improved.
Resumen de: WO2025123767A1
A pressure relief rack assembly (10b) and a battery module (10). The pressure relief rack assembly (10b) comprises: a pressure relief rack (11), wherein accommodating recesses (102) and pressure relief openings (103) are formed on the side of the pressure relief rack (11) facing a first direction, and the accommodating recesses (102) are used for mounting busbars (13); and a protective cover (12) in which a material channel (104) is formed, wherein the protective cover (12) covers the pressure relief openings (103), such that the material channel (104) is communicated with the pressure relief openings (103) and the protective cover (12) isolates the pressure relief openings (103) from the accommodating recesses (102), and a hot material ejected from the pressure relief openings (103) is discharged into the material channel (104).
Resumen de: WO2025127621A1
The present invention relates to a battery assembly comprising: a plurality of battery cells having vent portions configured to discharge venting gas; a frame configured to seat the plurality of battery cells and having a plurality of venting holes formed at positions corresponding to the vent portions; and a cover member covering the venting holes and configured to be opened by the venting gas.
Resumen de: WO2025127692A1
A battery cell stack according to various embodiments comprises: a plurality of battery cells; one or more cooling devices in contact with at least one of the plurality of battery cells; and a case accommodating the plurality of battery cells and the one or more cooling devices, wherein each of the one or more cooling devices includes a refrigerant flow path therein, is configured to cool at least one of the battery cells by means of a refrigerant flowing through the refrigerant flow path, and may include a first surface and a second surface having different thermal conductivities. Various other embodiments are possible.
Resumen de: WO2025127766A1
The present invention relates to an anode active material, a method for manufacturing same, and a secondary battery including same. The anode active material includes: a silicon-carbon composite including crystalline carbon, silicon-based particles bound to the surface of the crystalline carbon, and amorphous carbon on the surfaces of the crystalline carbon and silicon-based particles; and a carbon coating layer covering the surface of the silicon-carbon composite, wherein the anode active material may include 0.05-0.25 wt% of sulfur based on the total weight thereof.
Resumen de: WO2025127777A1
A recycling method of a valuable metal according to the present invention comprises the steps of: preparing Ni-Co-Mn alloy particles having a compound containing lithium and aluminum located on the surface thereof; subjecting the alloy particles to primary acid-leaching to selectively remove the compound containing lithium and aluminum located on the surface of the alloy particles; and obtaining valuable metal recovery alloy particles, from which the compound containing lithium and aluminum has been removed.
Resumen de: WO2025127787A1
The present invention relates to a separator supply device for a secondary battery and, more specifically, to a separator supply device for a secondary battery, the device controlling tension applied to a side separator positioned in the inner space of a body unit only by means of pressure generated through the flow of air flowing from an inlet to an outlet, thereby preventing the tension applied to the separator from rapidly increasing even if the transfer speed of the separator undergoes a rapid change.
Resumen de: WO2025126381A1
Problem To provide a mechanism capable of achieving proper use of a battery pack. Solution This control device comprises a control unit for controlling processing for granting a reward to a user, of an inhalation device which generates an aerosol by using a base material containing an aerosol source, who has returned a battery pack that is to be detachably connected to the inhalation device and that is provided from a charging device for charging the battery pack. The control unit controls processing including: receiving first authentication information for authenticating the return target battery pack; authenticating the return target battery pack on the basis of the received first authentication information; transmitting information indicating the authentication result of the return target battery pack; receiving a reward granting request including information indicating the user of the inhalation device; and granting a reward to the user on the basis of the received reward granting request.
Resumen de: WO2025126383A1
Problem To provide a mechanism capable of appropriately collecting information utilizing replacement of a battery pack. Solution This battery pack detachably connected to a suction device having a heating part for heating an aerosol source to generate an aerosol comprises: a chargeable/dischargeable battery; a storage part for storing information; a communication terminal for transmitting and receiving information to/from a device to which the battery pack is connected; and a control part for transmitting the information stored in the storage part via the communication terminal and for, when a predetermined condition related to the replacement of the battery pack is satisfied, deleting information to be deleted among the information stored in the storage part and leaving information not to be deleted.
Resumen de: WO2025126382A1
To provide a mechanism capable of collecting information by using replacement of a battery pack. A battery pack detachably connected to a suction device having a heating unit that heats an aerosol source to generate an aerosol, the battery pack comprising: a chargeable/dischargeable battery; a storage unit that stores information; a communication terminal that transmits and receives information to and from a device to which the battery pack is connected; and a control unit that, in a state in which the battery pack is connected to the suction device, writes, in the storage unit, discharge information during heating, which is information indicating a discharge state of the battery when the heating unit executes heating, and transmits, via the communication terminal, information stored in the storage unit in a state in which the battery pack is connected to a charging device that charges the battery.
Resumen de: WO2025126232A1
A battery management system 111 for dynamically managing a state of charge of a primary battery 110 of a vehicle during a distress state of the vehicle is disclosed. An electronic control unit of the vehicle is configured for monitoring a current state of the vehicle. If the current state is determined to be a distress state, the battery 5 management system 111 is configured to dynamically change to an alternate logic for charging the secondary battery 114 from the primary battery 110. This allows an anti theft system 101 of the vehicle to function beyond a benchmark time if the battery management system was functioning normally.
Resumen de: WO2025127635A1
The present invention provides an electrode tab bending device, which is an anode tab bending device of a jelly roll electrode assembly having a cathode tab and an anode tab, the device comprising: a jig for holding the jelly roll electrode assembly such that the anode tab can be lifted upward; a pressurizing tool for pressurizing the anode tab from top to bottom; a spindle device for vertically moving the pressurizing tool; and a position measurement unit for measuring the upper and lower positions of the pressurizing tool.
Resumen de: WO2025127630A1
According to exemplary embodiments, a battery pack is provided. The battery pack comprises: a pack housing including a base plate: a battery cell assembly, which is disposed on the pack housing and includes a plurality of battery cells; a thermal interface material (TIM) layer between the battery cell assembly and the pack housing; and tape between the TIM layer and the pack housing.
Resumen de: WO2025127754A1
The present invention relates to a cathode active material for a lithium secondary battery which is a lithium transition metal oxide containing excess lithium, excess nickel, and a buffer metal element, the lithium transition metal oxide having molar ratio of lithium to lithium transition metal oxide of 1.02-1.1 and molar ratio of nickel to transition metal of 0.75 or greater. The lithium transition metal oxide has a sphericity coefficient of 0.8 or greater and has a basic structure in which lithium layers and transition metal layers are alternately stacked, wherein the buffer metal element in the transition metal layers is partially substituted into the lithium layers, and lithium ions in the lithium layers are partially substituted into the transition metal layers, thereby suppressing anisotropic contraction and expansion during charging and discharging.
Resumen de: WO2025127834A1
The present invention relates to: a silicon carbon composite having a peak A present in a range of 130 ppm to 150 ppm, a peak B present in a range of 110 ppm to 130 ppm, and a peak C present in a range of 15 ppm to 40 ppm during 13C-NMR analysis, and satisfying equation 1 below; a negative electrode active material comprising same; a negative electrode composition; a negative electrode; a lithium secondary battery; a battery module; and a battery pack. Equation 1 0.3 ≤ peak C intensity/(peak A intensity + peak B intensity) ≤ 2.1
Resumen de: WO2025126384A1
Problem To provide a mechanism capable of achieving appropriate management of a battery pack. Solution A battery pack providing device provides, in a replaceable manner, battery packs to a plurality of inhalation devices each having a heating unit that heats an aerosol source and generates aerosol, the battery packs being detachably connected to each of the inhalation devices. The battery pack providing device includes: connection parts for electrically connecting to the battery packs; and a control unit that determines the states of the battery packs on the basis of information acquired, via the connection parts, from the battery packs connected to the connection parts. When it is determined that a battery pack is deteriorated, the control unit controls processing for reporting, in association with the battery pack, information indicating that the battery pack is deteriorated.
Resumen de: WO2025125710A1
Battery-monitoring wireless temperature sensors (WTSs) are positioned so that they can obtain temperature data related to batteries that are being stored in a storage area. Reference WTSs are positioned throughout the storage area to provide representative ambient temperature data. The battery-monitoring WTSs and the reference WTSs wirelessly transmit temperature measurements to a temperature processing system. The temperature processing system processes the battery-monitoring temperature measurements based on the reference temperature measurements and previous battery-monitoring temperature measurements. In some embodiments, the temperature processing system compares a battery-monitoring temperature measurement received from a particular battery-monitoring WTS to (i) at least one reference temperature measurement, and (ii) any previous battery-monitoring temperature measurements from that same WTS. If the battery-monitoring temperature measurement exceeds (i) or (ii) by a predefined threshold amount, then some type of preventive action is initiated.
Resumen de: WO2025125707A1
The present invention relates to a device, system and method for safely discharging batteries. The device comprises a chamber for containing batteries, inlets and outlets for inert gas, a control system, and a horizontal surface designed to receive at least one battery, which divides the chamber horizontally and forms a receptacle together with the base of the chamber, wherein the receptacle contains a plurality of micronised conductive particles.
Resumen de: WO2025124603A1
A negative electrode material and a preparation method therefor, and a lithium-ion battery. The negative electrode material comprises an active substance; the active substance comprises an Si element, an O element, and a metal M element; the metal M comprises Mg, Ca, and Cu; and in the negative electrode material, the mass content of the Mg element is mMg, the mass content of the Ca element is mCa, and the mass content of the Cu element is mCu, wherein 0<mCa/mMg<0.1, and 0<mCu/mMg<0.01. In the negative electrode material, the Mg element, the Ca element and the Cu element are introduced into the active substance, and ratios of the Mg element, the Ca element and the Cu element are limited within a proper range, thereby improving the initial coulombic efficiency, electrical conductivity, cycle performance and lithium intercalation/de-intercalation rate of the negative electrode material.
Resumen de: WO2025127737A1
Provided are a battery diagnosis device capable of improving the accuracy of battery diagnosis while facilitating portability, and an impedance-based mobile battery state diagnosis method capable of quickly diagnosing a state of an electric vehicle battery and determining whether to reuse the battery. The battery diagnosis device according to an aspect of the present invention includes: a battery diagnosis module configured to diagnose a battery; and a carrier module detachably supporting the battery diagnosis module and configured to be movable. The electric vehicle battery diagnosis method using the mobile battery diagnosis device according to an aspect of the present invention includes the steps of: performing a customized connection method according to whether an electric vehicle battery is detached or whether a cover is disassembled and then acquiring impedance data of the electric vehicle battery; diagnosing a state of the electric vehicle battery using the measured impedance to generate battery state information; and providing the generated battery state information to a user.
Nº publicación: WO2025127521A1 19/06/2025
Solicitante:
CHUNBO CO LTD [KR]
LEE KEUN PIL [KR]
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Resumen de: WO2025127521A1
The present invention relates to a method for recovering a lithium compound from a cathode material waste crucible, the method comprising the steps of: ultrasonically treating the cathode material waste crucible in water or an aqueous solution to generate a lithium compound-containing aqueous solution; separating the lithium compound-containing aqueous solution from the cathode material waste crucible by filtration; and evaporating the lithium compound-containing aqueous solution. Accordingly, lithium compounds can be recovered from the cathode material waste crucible in a simple and eco-friendly manner with high recovery efficiency.
BOPI
Sede Electrónica
