ELECTRODE MATERIAL, ELECTRODE AND SECONDARY BATTERY

摘要

An electrode material for a secondary battery, which realizes a lowered contact resistance between the electrode material and an active material layer, is provided. A collector (electrode material) includes: a substrate 1a including a metal foil; and a conductive material 1b, wherein the conductive material 1b contains a carbon black having a BET specific surface area of 300 m 2 /g or less and an attached amount of the carbon black per unit area on the surface of the substrate 1a is 400 mg/m 2 or less.