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.


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    Title :

    JELLY-ROLL WITH IMPROVED ELECTROLYTE IMPREGNATION PROPERTY, AND CYLINDRICAL BATTERY CELL, BATTERY PACK AND VEHICLE INCLUDING THE SAME


    Contributors:
    LEE YUN-JU (author) / RYU DUK-HYUN (author) / LEE KWAN-HEE (author)

    Publication date :

    2025-01-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    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



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