| 摘要 |
A secondary battery and a fabrication method of the secondary battery includes a battery unit having a positive electrode plate, a negative electrode plate and a separator interposed there between, a can for accommodating the battery unit, and a cap assembly having a cap cover, a safety vent and a gasket, where the end of the safety vent is bent inwards to be filled with the gasket provided along the outer periphery of the safety vent, so that the safety vent is inserted into the gasket in a secure manner.
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