| 摘要 |
PROBLEM TO BE SOLVED: To provide a welding sealed battery, having improved reliability by preventing cutting of a tab in the battery, even when the battery is subjected to vibration, such as falling. SOLUTION: The welding sealed battery comprises a spiral electrode body 40, a battery exterior can 60, a positive electrode collecting tab 24, a sealing cover 50, and an insulation plate 55 and a spacer 56, provided between the sealing cover 50 and the spiral electrode body 40, in the order from the side of the sealing cover 50; the positive electrode collecting tab 24 is arranged, ranging from a lead-out starting end through a space between the spacer 56 and the insulating plate 55 to a lead-out finishing end, where the positive electrode collecting tab 24 is welded; and the positive electrode colleting tab 24 is led out of at least a portion of a passage between the spacer 56 and the insulation plate 55, so that it has a descending portion 24a descending toward the electrode body 40. |
