| 摘要 |
A lithium secondary battery having an electrode assembly including a first electrode plate, a second electrode plate, and a separator interposed between the first electrode plate and the second electrode plate. A case receives the electrode assembly and a cap assembly is coupled to the case to seal the case. The cap assembly includes a cap plate adapted to permit the insertion of electrolyte into the case, the cap plate including at least one recess. An insulation case located between the electrode assembly and the cap assembly is formed with at least one protrusion on an exterior-facing surface. The protrusion is adapted to be coupled to the recess to integrate the insulation case and the cap plate.
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