CPC H01M 4/0407 (2013.01) [C22C 9/00 (2013.01); C25D 1/04 (2013.01); C25D 3/38 (2013.01); C25D 17/12 (2013.01); H01M 4/0404 (2013.01); H01M 4/66 (2013.01); H01M 4/661 (2013.01); H01M 10/02 (2013.01)] | 6 Claims |
1. A method of producing an electrolytic copper foil for a secondary battery, the method comprising:
preparing a plating solution containing copper, Total Organic Carbon (TOC), cobalt, and iron; and
applying a current density of 30 Ampere per Square Deci-metre (ASD) to 150 ASD under a temperature condition of 30° C. to 70° C. and performing electroplating by using a drum,
wherein a ratio of the TOC to the cobalt and the iron contained in the electrolytic copper foil follows Formula 1 below:
TOC/(cobalt+iron)=1.3 to 1.5 [Formula 1].
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