Composite fuel cell membranes
US5654109A · kind A · utility
38Cited by
41References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1995 |
| Grant date | Aug 5, 1997 |
| Priority date | — |
| Expiry date | Jun 30, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A bilayer or trilayer composite ion exchange membrane suitable for use in a fuel cell. The composite membrane has a high equivalent weight thick layer in order to provide sufficient strength and low equivalent weight surface layers for improved electrical performance in a fuel cell. In use, the composite membrane is provided with electrode surface layers. The composite membrane can be composed of a sulfonic fluoropolymer in both core and surface layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.