CLAD MATERIAL FOR BATTERY COLLECTORS, AND ELECTRODE

摘要

PROBLEM TO BE SOLVED: To provide a clad material for battery collectors, which makes possible to suppress the formation of a large warp while suppressing the increase in the contact resistance with an active material.SOLUTION: A clad material 1 for collectors (clad material for battery collectors) comprises a double layer structure arranged by bonding an Al layer 11 disposed on a surface 1a and made of an Al-based alloy, and a Cu layer 12 disposed on a surface 1b, and formed from a Cu-based alloy together by rolling. The rate of the thickness t2 of the Al layer 11 to the total thickness (t1) of the Al layer 11 and the Cu layer 12 is 35% or less.