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    Lithium ion secondary battery having enhanced weldability and sealing capability
    6.
    发明授权
    Lithium ion secondary battery having enhanced weldability and sealing capability 有权
    具有增强的焊接性和密封能力的锂离子二次电池

    公开(公告)号：US07998613B2

    公开(公告)日：2011-08-16

    申请号：US10572506

    申请日：2004-09-13

    申请人： Tae-Hyun Jeon ,  Hyun-Gook Yoon ,  Geun-Chang Chung

    发明人： Tae-Hyun Jeon ,  Hyun-Gook Yoon ,  Geun-Chang Chung

    IPC分类号： H01M2/06 ,  H01M2/00

    CPC分类号： H01M2/0202 ,  H01M2/0426 ,  H01M10/0525

    摘要： A thin and wide area lithium ion secondary battery is disclosed. The lithium ion secondary battery has a container having a flange extended outwardly from a region where a terminal is located in the container, and constituted by a can and a cap having preferred shapes, respectively, wherein the flange of the can is welded at an outer surface of the flange to an outer surface of the flange of the cap by means of micro-arc welding. A cooling jig can be easily installed to the container, allowing efficient removal of problems caused by heat upon welding, resulting in allowing application of micro-arc welding thereto without generating damage of the interior or the battery caused by heat. Accordingly, more economical and stable butt welding can be performed, thereby remarkably reducing defect occurrence rates causing leakage problem of the resulting battery, and manufacturing costs of the lithium secondary battery.

    摘要翻译： 公开了一种薄且广泛的锂离子二次电池。 锂离子二次电池具有容器，该容器具有从端子位于容器中的区域向外延伸的凸缘，并且由具有优选形状的罐和盖构成，其中罐的凸缘被焊接在外部 通过微弧焊接法兰的表面到盖的凸缘的外表面。 冷却夹具可以容易地安装到容器中，从而有效地消除了焊接时由热引起的问题，从而允许对其进行微弧焊接，而不会由于热而引起内部或电池的损坏。 因此，可以进行更经济和稳定的对接焊接，从而显着降低导致电池的漏电问题的缺陷发生率和锂二次电池的制造成本。