A jelly-roll has a structure in which a stack, which includes a first electrode having a first electrode tab with a first polarity; a second electrode having a second electrode tab with a second polarity; and a separator interposed between the first electrode and the second electrode, is wound in one direction, at least one of the first electrode tab and the second electrode tab has a plurality of slits formed along a winding direction of the jelly-roll, and a distance between the plurality of slits gradually increases from a core of the jelly-roll to an outer circumference thereof.
JELLY-ROLL WITH IMPROVED ELECTROLYTE IMPREGNATION PROPERTY, AND CYLINDRICAL BATTERY CELL, BATTERY PACK AND VEHICLE INCLUDING THE SAME
2025-01-09
Patent
Electronic Resource
English
IPC: | H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
CURRENT COLLECTOR, JELLY ROLL, SECONDARY BATTERY, BATTERY PACK, AND VEHICLE
European Patent Office | 2024
|Cylindrical secondary battery, battery pack, and vehicle including battery pack
European Patent Office | 2023
|CYLINDRICAL BATTERY, AND BATTERY PACK AND VEHICLE INCLUDING THE SAME
European Patent Office | 2024
|CYLINDRICAL BATTERY, AND BATTERY PACK AND VEHICLE INCLUDING THE SAME
European Patent Office | 2025
|ELECTRODE ASSEMBLY, CYLINDRICAL BATTERY CELL, AND BATTERY PACK AND VEHICLE INCLUDING SAME
European Patent Office | 2025
|