Electrolytic capacitor and method for producing the same

Details Electrolytic capacitor and method for producing the same Electrolytic capacitor and method for producing the same

1998-10-27

2000-07-11

Kincaid, Kristine

Electricity: electrical systems and devices

Electrolytic systems or devices

Solid electrolytic capacitor

361525, 361529, 29 2503, 252500, H01G 900, H01G 902

Patent

active

060882182

ABSTRACT:
The present invention provides a method for producing an electrolytic capacitor including a porous body of a valve metal, an oxide film on a surface of the valve metal, and a conductive polymer layer on a surface of the oxide film. The step of forming the conductive polymer layer on the surface of the oxide film includes the steps of dipping the porous body in a monomer solution; lifting the porous body from the monomer solution and dipping the porous body in an oxidizing solution; and lifting the porous body from the oxidizing solution and allowing the porous body to stand. In the step of dipping the porous body in the oxidizing solution, a period for which the porous body is dipped in the oxidizing solution is equal to or shorter than a period in which 30% of the monomer contained in pores of the porous body diffuses and flows into the oxidizing solution. Alternatively, the volume of the oxidizing solution can be less than three times that of the porous body. The above method can be performed by replacing the monomer solution and the oxidizing solution with each other. Furthermore, a temperature of the porous body is maintained at a low temperature (e.g., 10.degree. C. or less) in the step of dipping the porous body in the oxidizing solution.

REFERENCES:
patent: 4697001 (1987-09-01), Walker et al.
patent: 4943892 (1990-07-01), Tsuchiya et al.
patent: 5119274 (1992-06-01), Kinuta et al.
patent: 5187650 (1993-02-01), Kudoh et al.
patent: 5424907 (1995-06-01), Kojima et al.
patent: 5455736 (1995-10-01), Nishiyama et al.
patent: 5473503 (1995-12-01), Sakata et al.
patent: 5567209 (1996-10-01), Kobayashi et al.

Affiliated with

Also associated with

Rating

Electrolytic capacitor and method for producing the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrolytic capacitor and method for producing the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrolytic capacitor and method for producing the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-548191