| 摘要 |
A negative current collector includes a base, which is fixed to a cover of a battery and is electrically connected to a negative external terminal, and a leg which projects from the base and is electrically connected to a negative electrode in a power generating element. There is provided a rib projecting in the same orientation as that of the leg along at least a part of the outer peripheral edge of the base. ( Fig. 1 ) |
