Pouch type secondary battery having safety vent
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United States of America Patent
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Sep 19, 2017
Grant Date -
Mar 19, 2015
app pub date -
Nov 25, 2014
filing date -
May 2, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention relates to a pouch type secondary battery. The pouch type secondary battery includes an electrode assembly, and a pouch type case in which the electrode assembly is accommodated, the pouch type case comprising a sealing part disposed on an edge thereof. The sealing part includes an inner sealing part forming a closed curve to protect the electrode assembly against the outside, and an outer sealing part defining a gas flow path between the inner and outer sealing parts to surround a peripheral portion of the inner sealing part, the outer sealing part having a safety vent.
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