| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure capable of easily and surely connecting thin batteries in parallel without having adverse influence by heat when connecting the thin batteries in parallel, and capable of omitting a connecting part in one of the positive electrode side or the negative electrode side. SOLUTION: In the respective thin batteries 1 to be connected in parallel, flange parts 22 are respectively arranged in at least left and right both side parts of a battery can being the positive electrode side or the negative electrode side. One of the left and right flange parts is bent and formed (22a) in a crank shape, and the other is formed (22b) in a flat shape. The flange part bent and formed in a crank shape in one thin battery and the flat flange part in the other thin battery connected in parallel are superposed, and these parts are welded, and are connected in parallel.
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