Patent ID: 9373448
Filing Date: 2016-06-21
CPC Classification: H01G,Y02E,Y02T

Claim Text:
1. A method of manufacturing an electrolytic capacitor, said method comprising: preparing an anode including a dielectric film provided at a surface thereof; impregnating the anode with a first dispersion solution including first conductive polymer particles and a first solvent; and after said impregnating the anode with the first dispersion solution, impregnating the anode with a second dispersion solution including second conductive polymer particles and a second solvent, wherein: a pH value of the first dispersion solution is closer to 7 than a pH value of the second dispersion solution and is larger than the pH value of the second dispersion solution, the first dispersion solution and the second dispersion solution are respectively made by adjusting a pH value of a common mother liquid containing conductive polymer particles and a solvent, and during said impregnating the anode with the first dispersion solution, the first dispersion solution contacts the dielectric film.