CURRENT COLLECTOR MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a current collector material capable of improving adhesiveness to an active material by modifying an aluminum surface which is a current collector material, and reducing electric resistance generated between the current collector and a film containing the active material.SOLUTION: The current collector material reduces electric resistance generated between the current collector and a film containing the active material by using a current collector material, comprising a zinc film on an aluminum surface to be used as a current collector. The current collector further modifies an aluminum surface after removing an oxide film on the aluminum surface which causes the internal resistance.