Solid electrolytic capacitor
US4828738A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Nov 13, 1987 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Nov 13, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G9/028
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a solid electrolytic capacitor which comprises a first electrode comprising a valve action metal plate one surface of which is covered by an anodic oxidation film, a second electrode which faces the surface of the first electrode having the anodic oxidation film and a layer of a solid electrolyte which is placed between the first and second electrodes and comprises a salt of 7,7,8,8-tetracyanoquinodimethane with a cation of quinoline or isoquinoline the nitrogen atom of which is quarternarized with fluorinated alkyl groups, which has improved reliability at high temperature and increased capacitance, and decreases the formation of poisonous gas during pyrolysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.