Secondary battery
Number of patents in Portfolio can not be more than 2000
United States of America
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Mar 18, 2025
Grant Date -
Oct 20, 2022
app pub date -
Apr 13, 2022
filing date -
Apr 13, 2022
priority date (Note) -
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Abstract
The secondary battery includes an electrode assembly to which an electrode lead is attached; a case configured to receive the electrode assembly therein; a lead film configured to surround a part of an outer surface of the electrode lead and interposed between the electrode lead and the case; a vent region formed in at least a part of the case; and a vent member inserted into the vent region and configured to contain linear low-density polyethylene having a poly dispersity index (PDI) of 4 or less, wherein the vent member has a maximum sealing strength of less than 6 kgf/15 mm at 100° C. or above and a maximum sealing strength of 6 kgf/15 mm or more at room temperature to 60° C.
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