Variable catalyst loading based on flow field geometry
US8227124B2 · kind B2 · utility
2Cited by
5References
6Claims
0Family size
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Key dates
| Filing date | Feb 18, 2011 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | Feb 18, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fuel cell including a membrane electrode assembly composed of a ionically conductive member sandwiched between a pair of electrodes. At least one of the electrodes including a catalyst loading characterized by catalytic activity that varies in proportion to the catalyst loading. Moreover, the fuel cell includes a flow path for supplying gaseous reactants to the electrodes and the catalyst loading is varied according to the flow path geometry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.