| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a secondary battery that maintains a curved state of a case by minimizing a deformation of the case in the curved state.SOLUTION: A secondary battery according to an embodiment of the present invention includes: an electrode assembly performing charging and discharging; a case accommodating the electrode assembly; a cap plate sealing an opening of the case; and an electrode terminal provided at the cap plate and electrically connected to the electrode assembly. The case includes: a first curved surface part curved toward the center of the electrode assembly; a second curved surface part curved so as to be apart from the center; and a reinforcing plate coupled to the first curved surface part.</p> |
