Patent ID: 6995970

Claim:
A method of making an electrochemical capacitor electrode comprising a collector having an electronic conductivity and a porous layer having an electronic conductivity, the method comprising: a coating liquid preparing step of preparing a porous layer forming coating liquid containing a solid component including a porous particle having an electronic conductivity and a binder adapted to bind the porous particle, a liquid adapted to dissolve or disperse the binder, and an aggregate made of the solid component, such that the aggregate has a degree of dispersion of 10 to 200 μm in the coating liquid; a porous layer forming step of applying the porous layer forming coating liquid onto a surface of the collector and then removing the liquid so as to form the porous layer; and a pressing step of pressing the aggregate against the collector by pressing the collector and the porous layer, so as to form a depression and a projection on the surface of the collector formed with the porous layer.