Solid electrolytic capacitor and manufacturing method

Abstract

An electrolytic capacitor with low ESR even in the high frequency range, and the manufacturing method thereof are provided. The solid electrolytic capacitor includes anode foil, a cathode body, and an electrolyte layer. The anode foil id formed of valve action metal, and dielectric oxide film is formed on a surface thereof. The cathode body includes cathode foil formed of valve action metal and a conductive layer formed a surface of the cathode foil. The electrolyte layer intervenes between the anode foil and the cathode foil, and includes electrolytic solution and conductive polymers. The electrolytic solution includes phosphoric acid compound having alkyl groups with the carbon number of 1 to 10.

Dependencies are inferred from the claim text.