| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem of a configuration for suppressing bulge of a battery can by bringing a compression member into contact only with two outermost peripheral surfaces in the lamination direction of a lamination electrode body, that since the lamination electrode body is pressed from the outermost peripheral surface, effect of compression is less on the innermost side of the lamination electrode body, and the electrolyte is distributed unevenly.SOLUTION: A lamination electrode group, where a positive electrode and a negative electrode are laminated with a separator interposed therebetween, and an electrolyte are placed in a battery can, and a battery lid is provided at the aperture of the battery can. At the outermost part of each electrode group in the lamination electrode group divided into a plurality of parts in the lamination direction, a compression member is disposed in the structure of a lamination battery. |
