Polymer electrolyte membrane and method of producing the same
US7858260B2 · kind B2 · utility
3Cited by
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7Claims
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Key dates
| Filing date | May 17, 2006 |
| Grant date | Dec 28, 2010 |
| Priority date | — |
| Expiry date | Oct 28, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A polymer electrolyte membrane for use in a fuel cell and a method of producing a polymer electrolyte membrane. The method includes preparing a phosphate monomer solution by dissolving an initiator and a phosphate monomer containing at least one phosphoric acid group and at least one unsaturated bond in a solvent, impregnating a porous polymer matrix with the phosphate monomer solution, polymerizing the impregnated phosphate monomer, and impregnating the result of polymerization with a phosphoric acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.