Ion-conductive copolymers containing one or more ion-conducting oligomers
US7504461B2 · kind B2 · utility
1Cited by
9References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 11, 2005 |
| Grant date | Mar 17, 2009 |
| Priority date | — |
| Expiry date | Jul 24, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention provides ion-conductive copolymers that can be used to fabricate proton exchange membranes (PEM's), catalyst coated proton exchange membranes (CCM's) and membrane electrode assemblies (MEA's) which are useful in fuel cells and their application in electronic devices, power sources and vehicles. The ion-conductive copolymers comprise one or more ion-conductive oligomers randomly positioned in a polymeric backbone that is not ion-conductive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.