Patent ID: 9627144
Date: 2017-04-18
CPC Classifications: H01G

Claim:
1. A solid electrolytic capacitor, comprising: a solid electrolytic layer; and a dielectric layer on which the solid electrolytic layer is formed, wherein the solid electrolytic layer is formed by a process comprising applying and drying a conductive-polymer solution comprising a conductive polymer on the dielectric layer, the dielectric layer is formed by a process comprising oxidizing a surface of an anode metal, when particle size distributions of the conductive polymer are measured by a dynamic light-scattering method using a test conductive-polymer solution comprising 1 mass % of the conductive polymer, among one or a plurality of peaks of the particle size distributions, a volume average particle size in the distribution including a peak of the smallest particle size is smaller than 26 nm, and when a test stacked aluminum electrolytic capacitor comprising the solid electrolytic layer and a test dielectric layer is formed, the test stacked aluminum electrolytic capacitor has a rate of exhibited capacitance of no less than 70%, wherein the solid electrolytic layer is formed by applying and drying the conductive-polymer solution on the test dielectric layer and the test dielectric layer is formed by oxidizing a surface of aluminum having an electrical capacitance of 95 μF/cm