Carbon electrodes and energy storage device made thereof
US5659457A · kind A · utility
24Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1995 |
| Grant date | Aug 19, 1997 |
| Priority date | — |
| Expiry date | Apr 7, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrode for an energy storage device uses a protonated polymer that is imbedded with an electroactive metal and coated onto activated carbon. Protonated poly(4-vinylpyridine) is coated onto particles of activated carbon that have high surface area, and the coating is then imbedded with a metal that exhibits electroactive behavior. In one embodiment, ruthenium is plated onto the poly(4-vinylpyridine) to create the electrode. Optionally, a coating of an ionically conductive negatively charged polymer is applied over the ruthenium-imbedded coating. The improved electrode is used to make a capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.