Direct dimethyl ether fuel cells
US6777116B1 · kind B1 · utility
11Cited by
9References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1999 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Feb 24, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Low temperature fuel cells, e.g. solid polymer fuel cells, can operate directly on a fuel comprising dimethyl ether with dimethyl ether being oxidized at the fuel cell anode. Being highly soluble in water, dimethyl ether can be supplied as a liquid aqueous fuel solution. As a fuel, dimethyl ether provides similar power characteristics as methanol but typically with a greater Faradaic efficiency in liquid feed solid polymer fuel cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.