METAL FOIL WITH COATING LAYER AND METHOD FOR PRODUCING SAME, SECONDARY CELL ELECTRODE AND METHOD FOR PRODUCING SAME, AND LITHIUM ION SECONDARY CELL

摘要

Provided is an electrolytic copper foil for use in a collector having consistent Li secondary cell characteristics, that does not give rise to wrinkles in the collector used in an Li secondary cell, that does not rupture, and that has high cohesion to the active material and the collector. This metal foil (copper foil) with a coating layer is furnished with the coating layer on at least one side of an untreated metal film, the coating layer containing free metal particles.