| 摘要 |
PROBLEM TO BE SOLVED: To reduce the rate of occurrence of defectives by eliminating current variations at the time of welding independently of positions on a collector to prevent the occurrence of spatters. SOLUTION: A welding region is divided into the inside welding region 24 and the outside welding region 26 along the slit 14 of the collector 12, and then, by using a welding electrode 22 having a welding end surface limiting a welding range to each of the divided welding regions 24, 26, the divided welding regions 24, 26 are respectively welded along the slit 14, while changing the position of the welding electrode 22. COPYRIGHT: (C)2005,JPO&NCIPI
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