Pouch exterior for secondary battery, pouch-type secondary battery using the pouch exterior, and method of manufacturing the pouch-type secondary battery
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United States of America Patent
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Mar 19, 2024
Grant Date -
Mar 4, 2021
app pub date -
Nov 12, 2020
filing date -
Sep 12, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed are a pouch exterior capable of easily mounting an electrode assembly at an accurate position between accommodating parts, having an integrated form to minimize sealing parts contacting the air and to increase a lifetime of a battery, capable of preventing a rupture of the pouch exterior in an assembly process, and capable of increasing an energy density of a cell, a pouch-type secondary battery using the pouch exterior, and a method of manufacturing the pouch-type secondary battery. A pouch exterior for a secondary battery, according to the present disclosure, includes two corresponding accommodating parts configured to mount an electrode assembly therebetween and symmetrically formed at both sides by disposing a protruding part therebetween, and is folded along two folding lines outside a center pan of the protruding part by vertically mounting a side surface of the electrode assembly on the protruding part, such that folded parts surround side edges of the electrode assembly.
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