Proton conducting electrolytes with cross-linked copolymer additives for use in fuel cells
US8710108B2 · kind B2 · utility
0Cited by
3References
13Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 3, 2011 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Nov 22, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2383/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A proton conducting polymer electrolyte comprising a proton conducting ionomer cross-linked with an amount of a copolymer additive comprising cross-linking functional groups and other functional groups (e.g. proton carriers, chelating agents, radical scavengers) shows improved durability over the ionomer alone and provides for more stable inclusion of these other functional groups. The copolymer additive comprises at least two types of metal oxide monomers, one having cross-linking functional groups and the other having the other functional groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.