Electrolytic copper foil, electric component and battery including the same
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United States of America Patent
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Feb 20, 2018
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N/A
app pub date -
Mar 6, 2015
filing date -
Mar 6, 2015
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Abstract
Disclosed herein is an electrolytic copper foil in which an average diameter of a pore which is a region between surface elements protruding from a matte side is 1 mm to 100 nm. The electrolytic copper foil has high elongation while maintaining low roughness and high strength and thus may be used in a current collector of a medium-large size lithium ion secondary battery and a semiconductor packaging substrate, and the like, for tape automated bonding (TAB) which is used in a tape carrier package (TCP).
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