Sulfonated polymer composition for forming fuel cell electrodes
US7790314B2 · kind B2 · utility
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1Claims
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Key dates
| Filing date | Jun 5, 2009 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Jun 5, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A membrane electrode assembly for a fuel cell is described. The materials for the membrane electrode assembly are formed from sulfonated polymers. A polymer dispersion ink containing the sulfonated polymer and a mixture of solvents is used to form the electrodes on the exchange membrane. The dispersion ink allows for the electrodes to be formed directly on the exchange membrane without significantly dissolving the exchange membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.