| 摘要 |
A secondary battery has a wound electrode body, and two current collector terminals connected to opposite current collector foils of the electrode body. Bound portions in which the current collector foils are bound are opposed to each other in a compression direction in which the wound electrode body is compressed. Each current collector terminal has a current-collecting portion that has a solid structure and is inserted between the opposed bound portions for connection with the electrode body, and a current-carrying portion formed integrally with the current-collecting portion. The width of the current-carrying portion is substantially equal to the thickness of the electrode body in the compression direction, and the current-carrying portion extends along a corresponding one of opposite end faces of the electrode body as viewed in the direction of the winding center axis. |
