ELECTRODE MATERIAL, AND CAPACITOR AND SECONDARY BATTERY USING SAID ELECTRODE MATERIAL

摘要

An electrode material that is used as an electrode in an electric double layer capacitor, a lithium ion capacitor, and a lithium secondary battery and has a reduced internal resistance for improving output is provided. The electrode material is characterized in that a metal is filled into pores in a surface portion at one surface of a powder molded body containing at least an active material powder and a metal film is formed on the one surface. The electrode material can be formed by performing a plating treatment on the powder molded body.