| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealed battery wherein short-circuiting of a negative electrode and a positive electrode is not easily caused, even if a collector plate is orthogonally connected to the negative electrode or the positive electrode by laser welding. SOLUTION: The sealed battery has a power generating element 11 formed by laminating a negative electrode 11A and a positive electrode through a separator, and a negative electrode collector plate 14 and a positive electrode collector plate 15 connected to the end rim of the negative electrode 11A in its surface direction and to the end rim of the positive electrode in its surface direction respectively. The negative electrode collector plate 14 and the positive electrode collector plate 15 are oriented so as to be parallel with the laminating direction of the negative electrode 11A and the positive electrode, and are welded to the positive electrode by laser welding. A bent part 21 is provided at the end rim of the negative electrode 11A in its surface direction. |
