The invention provides a cylindrical secondary battery, a method of manufacturing the same, a battery pack including the same, and a vehicle. Provided are a cylindrical secondary battery having an improved electrode terminal and a method for manufacturing the same. The cylindrical secondary battery according to the present disclosure has an improved electrode terminal structure, and the first collector plate and the electrode terminal are coupled by a laser welding method. A laser welding portion formed on a contact surface of the first collector plate and the electrode terminal is located in an overlapping region of the winding center hole of the electrode assembly, the first collector plate and the electrode terminal.

    本发明提供圆柱形二次电池及其制造方法、包括其的电池组和车辆。提供具有改进的电极端子的圆柱形二次电池及其制造方法。根据本公开的圆柱形二次电池具有改进的电极端子结构,并且第一集流板与电极端子借助激光焊接方法联接。形成在第一集流板与电极端子的接触表面上的激光焊接部分位于电极组件的卷绕中心孔、第一集流板与电极端子的交叠区域中。


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    Title :

    Cylindrical secondary battery, method of manufacturing same, battery pack including same, and vehicle


    Additional title:

    圆柱形二次电池及其制造方法、包括其的电池组和车辆


    Contributors:
    KIM MIN-WOO (author) / KIM DO GYUN (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



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