Durable fuel cell with platinum cobalt alloy cathode catalyst and selectively conducting anode
US9564642B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Mar 7, 2013 |
| Grant date | Feb 7, 2017 |
| Priority date | — |
| Expiry date | Apr 22, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The degradation associated with repeated startup and shutdown of solid polymer electrolyte fuel cells comprising PtCo alloy cathode catalysts can be particularly poor. However, a marked and unexpected improvement in durability is observed as a result of incorporating a selectively conducting component in electrical series with the anode components in the fuel cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.