Welding method and a battery and a separator

    公开(公告)号:JP5363450B2

    公开(公告)日:2013-12-11

    申请号:JP2010242035

    申请日:2010-10-28

    CPC classification number: Y02E60/12

    Abstract: PROBLEM TO BE SOLVED: To provide a welding method which scarcely cause a damage on a separator when welding a collector to an electrode body, and to provide a battery and a separator. SOLUTION: A laminate electrode body 100 laminating a positive electrode plate P and a negative electrode plate N with a separator S interposed therebetween is welded to collector plates 110, 120. A separator S having a sulfonation region V subjected to sulfonation, and a non-sulfonation region X not subjected to sulfonation is used. When the positive electrode collector plate 110 is welded to the laminate electrode body 100, the positive electrode collector plate 110 is welded in a state where the non-sulfonation region X is arranged in a place to which heat is transmitted easily. COPYRIGHT: (C)2012,JPO&INPIT

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