| abstract |
An electrolytic capacitor having a negative electrode which exhibits a high capacity is provided. 1. A negative electrode comprising a conductive substrate, a negative electrode having a conductive polymer layer provided on a surface of the conductive substrate, a base made of a valve metal, and a dielectric layer made of an oxide of the valve metal provided on the surface of the base, And an ion conductive electrolyte filled in the space, wherein a voltage is applied between the anode and the cathode so that the ion conductive electrolyte is in contact with the ion conductive electrolyte, And the conductive polymer layer of the negative electrode develops a redox capacity. |