Separator comprising adhesive coating parts having different tack strengths and electrode assembly comprising the same
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United States of America Patent
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Nov 12, 2019
Grant Date -
Feb 1, 2018
app pub date -
Sep 2, 2016
filing date -
Sep 2, 2015
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Abstract
The present invention relates to a jelly-roll type electrode assembly comprising: a sheet-like positive electrode; a sheet-like negative electrode; and a separator which is interposed between the positive electrode and the negative electrode, and which includes a first adhesive coating part and a second adhesive coating part formed on a first surface of a sheet-like porous substrate, and a third adhesive coating part formed on a second surface which is the opposite surface to the first surface, wherein the first adhesive coating part and the second adhesive coating part have different tack strength from each other.
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