| 摘要 |
A rechargeable battery according to an exemplary embodiment of the present invention includes an electrode assembly, a case in which the electrode assembly is installed, and a cap assembly coupled to the opening of the case, and the cap assembly includes a cap plate that includes a first plate. The length and the width of the first plate are smaller than the length and the width of the case and larger than the length and the width of the opening of the case, and is coupled by welding to the opening of the case. |
