| 摘要 |
Provided is a secondary battery that improves the coupling force between a collector and a cap plate to reduce a electrolyte leakage. The secondary battery includes a case, an electrode assembly inserted in the case, an electrode terminal of a collector connected to a non-coating portion of the electrode assembly, a gasket disposed on the upper portion of the electrode terminal, and a cap plate including a protrusion disposed on a lower surface and passing through the gasket and extending down to the collector. |
