Crosslinkable sulfonated copolymer and fuel cell including polymeric composition of the same
US7964676B2 · kind B2 · utility
2Cited by
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14Claims
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Key dates
| Filing date | Nov 21, 2006 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Sep 12, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sulfonated copolymer including a crosslinking functional group and a fuel cell including a polymeric composition of the same are provided. The sulfonated copolymer including a crosslinking functional group can remarkably reduce methanol crossover and maintain superior dimensional stability and ionic conductivity by reducing swelling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.