Conductive separator and electrolytic capacitor including the same
US7379289B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2004 |
| Grant date | May 27, 2008 |
| Priority date | — |
| Expiry date | Jan 4, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G9/151
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a highly conductive separator of which surface is coated with conductive polymer molecules, and provides an electrolytic capacitor having a low ESR characteristic using the separator. The conductive separator is formed by sticking the conductive polymer molecules to an insulating separator substrate by chemical oxidative polymerization, and the stuck amount of the conductive polymer molecules per basis weight of the separator substrate is set in the range of 3 to 30 g/m2. Conductive polymer molecules that are hardly de-doped can be formed in the electrolyte for driving by chemical oxidative polymerization, so that an electrolytic capacitor having high capacitance and low ESR can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.