Carbon foams for energy storage devices
US5529971A · kind A · utility
101Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1993 |
| Grant date | Jun 25, 1996 |
| Priority date | — |
| Expiry date | Mar 25, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A high energy density capacitor incorporating a variety of carbon foam electrodes is described. The foams, derived from the pyrolysis of resorcinol-formaldehyde and related polymers, are high density (0.1 g/cc-1.0 g/cc) electrically conductive and have high surface areas (400 m.sup.2 /g-1000 m.sup.2 /g). Capacitances on the order of several tens of farad per gram of electrode are achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.