Pouch Type Secondary Battery and Production Method Thereof
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United States of America Patent
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Issued Date -
May 6, 2021
app pub date -
Oct 29, 2020
filing date -
Oct 31, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
Provided are the system and method of molding a gas collection portion of a battery pouch, and more particularly, the system and method of molding a gas collection portion to collect gas in a portion where an electrode tab welding portion of a battery pouch is disposed. In the system and method of molding the gas collection portion of the battery pouch according to the present disclosure, the electrode tab welding portion may also be molded when the battery pouch is molded, and the gas generated in the battery cell may thus be collected in a space formed between the pouch inclined surfaces, thereby preventing or delaying venting of the battery pouch.
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