| 摘要 |
A secondary battery includes an electrode assembly realized by layering and/or winding an anode, a cathode, and a separator; a case having a space into which the electrode assembly is inserted; and a cap assembly including a cap plate connected to the case inside of which the electrode assembly is mounted, a gasket insulating the cap plate from the case, and a safety assembly having a shock absorbing unit extending into the case from the gasket or the cap plate and that has a space for absorbing pressure, and having a vent member supported in a distal end of the shock absorbing unit and that is damaged when an internal pressure of the secondary battery exceeds a predetermined pressure.
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