Epoxy-crosslinked sulfonated poly (phenylene) copolymer proton exchange membranes
US7816482B1 · kind B1 · utility
13Cited by
9References
9Claims
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Key dates
| Filing date | Mar 26, 2009 |
| Grant date | Oct 19, 2010 |
| Priority date | — |
| Expiry date | Mar 26, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An epoxy-crosslinked sulfonated poly(phenylene) copolymer composition used as proton exchange membranes, methods of making the same, and their use as proton exchange membranes (PEM) in hydrogen fuel cells, direct methanol fuel cell, in electrode casting solutions and electrodes, and in sulfur dioxide electrolyzers. These improved membranes are tougher, have higher temperature capability, and lower SO2 crossover rates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.