| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to surely conduct bent welding of flap of a battery causing no defect. SOLUTION: Sequentially conducted are positioning process that positions a battery 1 at a specified location, adhesion film formation process that forms an adhered thin film layer 5 on a base pat 11 with a shape corresponding a flap portion 4 to be adhered, adhesion film copying process that copies the formed adhered thin film layer 5 on the flap portion 4 of the positioned battery 1 (S102 and S103), folding process that folds the flap portion that the adhered thin film layer 5 was copied (S104) and adhesion process that adheres the flap portion 4 on the outer face of the battery device 2 (S104).
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