2 2 2 SURFACE-TREATED ELECTROLYTIC COPPER FOIL FOR LITHIUM-ION SECONDARY CELL ELECTRODE FOR LITHIUM-ION SECONDARY CELL IN WHICH SAME IS USED AND LITHIUM-ION SECONDARY CELL

摘要

An object of the present invention is to provide a surface-treated electrolytic copper foil for a lithium ion secondary battery which prevents peeling of an active material by improving the anti-curl property during heating of the copper foil, an electrode for a lithium ion secondary battery using the same, Thereby providing a battery. (Solution) The maximum potential in the first platelet potential region of the surface oxide film measured at room temperature after heating at 180 占 폚 for 1 hour was -800 占 or less (vs. SCE) at both surfaces of the glossy surface and the matte surface Surface treated electrolytic copper foil for a lithium ion secondary battery, an electrode for a lithium ion secondary battery using the same, and a lithium ion secondary battery.