Electrolytic copper foil
AssigneeChang Chun Petrochemical Co., Ltd.
InventorsKuei-Sen Cheng, Chyen-Fu Lin, Jui-Chang Chou, Chih-Sheng Lu
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Abstract
An electrolytic copper foil, which is particularly suitable for the application of a lithium ion secondary battery, has a shiny side and a matte side with a roughness of less than 2 μm. Based on the total sum of the texture coefficients of a (111) surface, a (200) surface, a (220) surface and a (311) surface of the electrolytic copper foil, the sum of the texture coefficients of the (220) surface and the (311) surface of the electrolytic copper foil is greater than 60%.
Claims10
An electrolytic copper foil, comprising a shiny side and a matte side with a roughness of less than 2 μm, wherein based on a total sum of texture coefficients of a (111) surface, a (200) surface, a (220) surface and a (311) surface of the electrolytic copper foil, a sum of texture coefficients of the (220) surface and the (311) surface of the electrolytic copper foil is greater than 60%.
Dependencies are inferred from the claim text.