Kcf Technologies Co., Ltd.

Jeong Gil Lee

Seung Min Kim

Shan Hua Jin

Disclosed is a copper foil including a copper layer and having a tensile strength of 29 to 65 kgf/mm, a mean width of roughness profile elements (Rsm) of 18 to 148 &#x3bc;m and a texture coefficient bias [TCB(220)] of 0.52 or less.

Copper foil with minimized bagginess, wrinkle or tear, electrode including the same, secondary battery including the same and method for manufacturing the same

A high strength electrolytic copper foil preventing generation of folds, wrinkles, pleats, and breaks during a roll-to-roll (RTR) process, a method of manufacturing the same, and an electrode and a secondary battery which allow high productivity to be secured by being manufactured with such an electrolytic copper foil. The electrolytic copper foil includes a copper film including 99 weight % or more of copper and a protective layer on the copper film, wherein the electrolytic copper foil has a tensile strength of 45 to 65 kgf/mm.

Electrolytic copper foil having high tensile strength, electrode including the same, secondary battery including the same, and method of manufacturing the same

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Anyang-si, South Korea

Jeong Gil Lee