Method of making polyaniline solid electrolyte capacitor
US5223002A · kind A · utility
8Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1991 |
| Grant date | Jun 29, 1993 |
| Priority date | — |
| Expiry date | Oct 31, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/435
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Highly conducting polyaniline is produced in situ in a tantalum capacitor by subjecting an excess of monomeric aniline to a solution having a low concentration of ammonium persulfate reagent. The monomer is oxidized by the reagent in preference to the polymer, so that the presence of excess monomer protects the polymer as it is produced against further oxidation to a less conductive species.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.