| abstract |
(57) [Abstract] [Problem] To separate aluminum anode and cathode electrode foils. Capacitors with a high capacity achievement ratio and excellent characteristics are sufficiently impregnated with a conductive polymer fine particle dispersion, a polymerizable monomer solution, an oxidizing agent solution, or a mixed solution in a capacitor element wound through a capacitor. The purpose is to gain. SOLUTION: A mixed solution 25 is supplied so as to pass from the lower end face 9 side of the capacitor element 7 to the upper end face 8 by pressure reduction or pressurization and impregnated in the capacitor element 7, thereby achieving a high capacity achievement rate and a loss characteristic. And an advantageous effect that a capacitor having excellent impedance characteristics can be obtained. |