The invention discloses an electrode assembly, a cylindrical battery cell, and a battery pack and an automobile including the same. The electrode assembly is a gel roll-type electrode assembly having a structure in which sheet-shaped first and second electrode plates and a separation membrane sandwiched therebetween are wound in one direction, wherein at least one of the first and second electrode plates includes an uncoated portion in which an active material layer is not coated at a long-side end portion. At least a portion of the uncoated portion itself may be used as an electrode tab. The uncoated portion includes a core portion-side uncoated portion adjacent to the core portion of the electrode assembly, an outer peripheral-side uncoated portion adjacent to the outer peripheral surface of the electrode assembly, and an intermediate uncoated portion sandwiched between the core portion-side uncoated portion and the outer peripheral-side uncoated portion. It is preferable that at least one of the core-side uncoated part and the outer-peripheral-side uncoated part has a relatively lower height in the winding axis direction than the intermediate uncoated part.

    本发明公开电极组件、圆筒形电池单元及包括其的电池组及汽车。电极组件作为具备片状的第一电极板及第二电极板和夹在它们之间的分离膜向一个方向卷取的结构的凝胶卷型电极组件,上述第一电极板及上述第二电极板中的至少一个电极板包括在长边端部未涂布活性物质层的无涂层部。上述无涂层部的至少一部分其本身可被用作电极极耳。另外,上述无涂层部包括与上述电极组件的芯部相邻的芯部侧无涂层部、与上述电极组件的外周表面相邻的外周侧无涂层部、夹在上述芯部侧无涂层部及上述外周侧无涂层部之间的中间无涂层部。优选为,上述芯部侧无涂层部和上述外周侧无涂层部中的至少一个与上述中间无涂层部相比卷取轴方向上的高度相对更低。


    Access

    Download


    Export, share and cite



    Title :

    Electrode assembly, cylindrical battery cell, and battery pack and automobile including same


    Additional title:

    电极组件、圆筒形电池单元及包括其的电池组及汽车


    Contributors:
    LEE MYUNG-AN (author) / RYU DUK-HYUN (author) / WOO JAE-YOUNG (author)

    Publication date :

    2023-04-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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



    ELECTRODE ASSEMBLY, CYLINDRICAL BATTERY CELL, AND BATTERY PACK AND VEHICLE INCLUDING SAME

    LEE KWAN-HEE / KIM SUE-JIN / LEE YUN-JU et al. | European Patent Office | 2025

    Free access

    Cylindrical battery, battery pack comprising same and automobile

    HWANGBO KWANG-SU / LEE KWAN-HEE | European Patent Office | 2023

    Free access

    Electrode assembly, cylindrical battery cell, battery pack, and vehicle

    LEE KWAN-HEE / KIM SU-JIN / LEE YUN-JU et al. | European Patent Office | 2023

    Free access

    Cylindrical battery, battery pack comprising same and automobile

    LIM JAE-WON / JO MIN-KI | European Patent Office | 2023

    Free access

    Cylindrical battery, battery pack comprising same and automobile

    HWANGBO KWANG-SU / MIN KUN-WOO | European Patent Office | 2023

    Free access