Pouch-shaped battery case comprising crack prevention structure and method of manufacturing the same
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United States of America Patent
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Jul 19, 2022
Grant Date -
Jun 11, 2020
app pub date -
Jul 13, 2018
filing date -
Oct 17, 2017
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Disclosed are a pouch-shaped battery case including an upper case and a lower case sealed to one another, the upper case and the lower case made of a laminate sheet comprising a metal layer and a resin layer, at least one of the upper case and the lower case having a concave unit for receiving an electrode assembly, the upper case and the lower case being sealed at all corners thereof located along the outer edge of the concave unit, a middle of a first side surface of each of the upper case and the lower case having a non-sealed portion for gas discharge, the first side surface being adjacent to a second side surface of each of the upper case and the lower case through which an electrode terminal extends, a method of manufacturing the pouch-shaped battery case, and a sealing block for manufacturing the pouch-shaped battery case.
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