| abstract |
An object of the present invention is to provide an electrolytic capacitor excellent in reliability such as low ESR, large capacitance, and high withstand voltage, and a method for manufacturing the same. A capacitor element formed by winding an anode foil on which a dielectric oxide film is formed and a cathode foil subjected to surface enlargement treatment through a separator, and a driving element impregnated in the capacitor element An electrolytic solution, a bottomed outer case containing the capacitor element, and a sealing material that seals an opening of the outer case, the conductive polymer fine particles adhere to the fiber surface of the separator, and the separator The conductive polymer fine particles are filled between the fibers, and the conductive polymer fine particles adhere to the surfaces of the anode foil and the cathode foil. [Selection] Figure 1 |