| 摘要 |
PROBLEM TO BE SOLVED: To provide a curved secondary battery.SOLUTION: A curved secondary battery includes a can having an opening at one side, an electrode assembly housed in the can through the opening, and a cap plate to seal the opening of the can. The cap plate includes a concave first side surface and a convex second side surface that are parallel to each other, and flat first and second surfaces that connect the first and second side surfaces. The first surface may include a first groove formed along a lengthwise direction of the cap plate and positioned more closely to the first side surface than to the second side surface. |
