Polymer electrolyte membrane and fuel cell including the polymer electrolyte membrane
US7842410B2 · kind B2 · utility
1Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2006 |
| Grant date | Nov 30, 2010 |
| Priority date | — |
| Expiry date | Sep 2, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A solid acid including a carbon nanotube (CNT), a spacer group combined with the CNT and an ionically conductive functional group connected to the spacer group. A polymer electrolyte membrane may include the same composition, and may be used in a fuel cell. The polymer electrolyte membrane using the solid acid has excellent ionic conductivity and suppresses the cross-over of methanol. The polymer electrolyte membrane is used as an electrolyte membrane of a fuel cell, for example, a direct methanol fuel cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.