| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing a solid electrolytic capacitor that can be improved in electrostatic capacitance. SOLUTION: After a capacitor element is formed by winding an anode foil having an oxidized coating film on its surface and a cathode foil having a coating film composed of a metal nitride, metal carbide, metal carbide-nitride, or carbon or indium tin oxide on its surface with a separator in between, restorative formation is performed on the element. Thereafter, the element is dipped in a ketone-based solution containing polyimide silicone at a rate of 0.05-20 wt.%. After the element is pulled up from the solution, a solvent is vaporized at a temperature of 40-100°C and the element is heat-treated at a temperature of 150-200°C. Successively, a solid electrolyte layer is formed by dipping the element in the mixed solution of a polymerizable monomer and an oxidizing agent, and causing the polymerization reaction of a conductive polymer in the element. Finally, the solid electrolytic capacitor is formed by housing the element in an encapsulating case and sealing the opened end section of the case with sealing rubber. COPYRIGHT: (C)2005,JPO&NCIPI
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