Electric copper foil, and current collector for lithium secondary battery and lithium secondary battery including the same
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United States of America Patent
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Feb 9, 2021
Grant Date -
Apr 27, 2017
app pub date -
Aug 22, 2016
filing date -
Oct 21, 2015
priority date (Note) -
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Abstract
An electric copper foil is applied as a current collector for a lithium secondary battery, and in a peak curve with respect to a (111) plane appearing on an X-ray diffraction analysis graph (a graph in which an X-axis variable is a diffraction angle 2θ and a Y-axis variable is an intensity of a diffracted X-ray) in a state where the electric copper foil is not thermally treated, the electric copper foil has a full width at half maximum (FWHM) of 0.08 or above and 0.15 or below.
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