Solid polyelectrolyte membrane for fuel cells, and method for producing it
US6242123A · kind A · utility
36Cited by
3References
31Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 30, 1998 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Sep 30, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A solid polyelectrolyte membrane for a fuel cell, comprises a synthetic resin comprising main chains and side chains, the main chains having a copolymer structure of a first olefin hydrocarbon and an olefin perfluorocarbon, the side chains having a sulfonic acid group containing crosslinked copolymer structure of a second olefin hydrocarbon and a diolefin hydrocarbon. The solid polyelectrolyte membrane is an inexpensive, solid polyelectrolyte membrane for fuel cells, of which the water content is controlled so that it does not cause too much wetting of electrode catalysts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.