Electrodes and electric double layer capacitance devices comprising an activated carbon cryogel
US8797717B2 · kind B2 · utility
53Cited by
52References
26Claims
0Family size
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Key dates
| Filing date | May 20, 2013 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | May 20, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24998
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present application is directed to electric double layer capacitance (EDLC) devices. In one aspect, the present application is directed to an electrode comprising an activated carbon cryogel having a tunable pore structure wherein: the surface area is at least 1500 m2/g as determined by nitrogen sorption at 77K and BET analysis; and the pore structure comprises 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. In another aspect, the present application is directed to an Electric Double Layer Capacitor (EDLC) device comprising an activated cryogel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.