Polymer electrolyte membrane and method of making
US7285349B2 · kind B2 · utility
6Cited by
8References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2003 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Mar 13, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Polymer electrolyte membranes such as are used in fuel cells are provided along with methods of their manufacture. The polymer electrolyte membranes comprise polymers or blends of polymers having an equivalent weight of less than 1200 and a Tg of between 101° C. and 155° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.