公开(公告)号：US20210025067A1

公开(公告)日：2021-01-28

申请号：US16959360

申请日：2019-01-25

Applicant: KCF Technologies Co., Ltd.

Inventor： Seung Min KIM ,  Joong Kyu AN ,  Shan Hua JIN

IPC: C25D1/04 ,  C25D3/38 ,  H01M4/66 ,  H01M10/052

Abstract: The present invention relates to: an electrolytic copper foil having high dimensional stability and texture stability in a high temperature environment of a process for manufacturing an Li secondary battery; and a manufacturing method therefor. The electrolytic copper foil of the present invention has a thermal expansion coefficient of 17.1-22 μm/(m·° C.) in a temperature region of 30-190° C., has a variation of full width at half maximum of the (220) plane of 0.81-1.19 according to heat treatment for 30 minutes at 190° C., and has a weight deviation of 5% or less in the transverse direction.