| 摘要 |
PURPOSE: A secondary battery is provided to maintain a gap between a positive electrode, a separator and a negative electrode by pressing an electrode assembly, thereby restraining cell swelling and improving the assembility of a case and the electrode assembly. CONSTITUTION: A secondary battery comprises an electrode assembly, a case, and a retainer(60) in the case surrounding the electrode assembly. The retainer comprises a first retainer surrounding a part of the electrode assembly, a second retainer surrounding another part of the electrode assembly, and a connection part connecting the first retainer and the second retainer. The secondary battery additionally comprises a current collecting lead taps electrically connecting the terminal of the secondary battery and the electrode assembly.
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