Winding-type electric storage device
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United States of America Patent
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Nov 24, 2015
Grant Date -
Jan 10, 2013
app pub date -
Apr 17, 2012
filing date -
Jul 6, 2011
priority date (Note) -
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Abstract
A winding-type electric storage device may prevent swaying or movement of an electrode assembly. The winding-type electric storage device includes a flat electrode assembly, which includes a core, and a case in which the electrode assembly is housed, the core including first and second curved sections which are disposed so that the inner circumferential surfaces thereof face to each other, and each of which is at least in part composed of a material stacked into two or more plies, and first and second opposed sections which connect the mutually-opposed first ends and second ends of the first and second curved sections to each other.
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