COVER ASSEMBLY OF SECONDARY BATTERY AND SECONDARY BATTERY
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United States of America Patent
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Issued Date -
Feb 11, 2021
app pub date -
Jul 28, 2020
filing date -
Aug 7, 2019
priority date (Note) -
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Abstract
A cover assembly of a secondary battery. The cover assembly includes: a cover plate including a gas vent; a gas exhaust valve configured to seal the gas vent and deform in response to an increase in temperature to get out of a state of sealing the gas vent; and a sealing part arranged between the gas exhaust valve and the cover plate and surrounding the gas vent for sealing a gap between the gas exhaust valve and the cover plate.
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