Solid electrolytic capacitor
US7742281B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2007 |
| Grant date | Jun 22, 2010 |
| Priority date | — |
| Expiry date | Aug 14, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G9/15
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention is a solid electrolytic capacitor having a dielectric coating film, a solid electrolytic layer, and a cathode lead-out layer on a peripheral surface of an anode body in this order, in which the solid electrolytic layer is equipped with at least a first electrolytically polymerized layer and a second electrolytically polymerized layer formed by electrolytic polymerization of the same monomer, and the first electrolytically polymerized layer and the second electrolytically polymerized layer contain a different dopant. With this configuration, a solid electrolytic capacitor is provided that is superior in an ESR characteristic and also superior in heat resistance without deteriorating leakage current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.