NONAQUEOUS ELECTROLYTE CELL
    20.
    发明专利

    公开(公告)号:JPH0251852A

    公开(公告)日:1990-02-21

    申请号:JP20282988

    申请日:1988-08-15

    Abstract: PURPOSE:To prevent a battery from deteriorating in its performance, due to a corrosion at a welded part, and make its preservation characteristic excellent by coating a welded part of a current collecting body and a positive electrode of a battery case with material insoluble in an electrolyte. CONSTITUTION:To retain good conducting state for a long time by making an electrical connection between a positive electrode current collecting body 4 and the positive electrode 1 of a battery case by means of weld, while welded part is coated with a material which is insoluble in an electrolyte. Accordingly, at a welded part where a corrosion an a dissolution phenomenon is fierce, a corrosion of structure material for a metal positive electrode side and a penetration of a metal component in an electrolyte, that could cause deterioration of a battery performance, can be prevented as much as possible, thus excellent cycle characteristic and self-discharge characteristic are retained for a long period of time without increasing its internal resistance.

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