Electric double layer capacitance device
US7835136B2 · kind B2 · utility
80Cited by
21References
37Claims
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Key dates
| Filing date | Nov 15, 2007 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | May 22, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24998
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric double layer capacitance (EDLC) device is disclosed having an electrode containing an activated carbon cryogel with a tunable pore structure, the carbon cryogel having a surface area of at least 1500 m2/g as determined by nitrogen sorption at 77K and BET analysis, and the pore structure having a pore volume ranging from about 0.01 cc/g to about 0.25 cc/g for pores having a pore diameter of 0.6 to 1.0 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.