SECONDARY BATTERY
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United States of America Patent
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Issued Date -
Oct 26, 2017
app pub date -
Mar 17, 2017
filing date -
Apr 25, 2016
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A secondary battery includes: an electrode assembly; a case accommodating the electrode assembly; and a cap assembly coupled to a top portion of the case. The cap assembly includes a safety vent and a cap-up. The cap-up has grooves on a surface thereof. The safety vent includes a downwardly protruding portion, is under the cap-up, and is electrically connected to the electrode assembly at the protruding portion.
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