ELECTROLYTIC COPPER FOIL FOR SECONDARY BATTERY AND METHOD FOR PRODUCING SAME

摘要

The present invention relates to an electrolytic copper foil for a secondary battery, and a method of producing the same, and more particularly, to an electrolytic copper foil for a secondary battery, which exhibits a little change in a physical property caused by a difference in a crosshead speed when tensile strength and an elongation percentage of the electrolytic copper foil are measured, thereby achieving excellent charging and discharging characteristics of a battery and preventing exfoliation of an active material. and a method of producing the same. According to one aspect of the present invention, an exemplary embodiment of the present invention includes an electrolytic copper foil for a secondary battery produced from a plating solution containing Total Organic Carbon (TOC), cobalt, and iron by using a drum, in which a ratio of the TOC to the cobalt and the iron contained in the electrolytic copper foil follows Formula 1 below.