Proton-conducting electrolyte and fuel cell using the same
US7560184B2 · kind B2 · utility
2Cited by
0References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 3, 2005 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | Jun 16, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention provides a proton-conducting electrolyte that has excellent proton-conducting properties, heat resistance, and chemical stability without containing any fluorine. The proton-conducting electrolyte contains polyamide sulfamidic acid in which a polyamide backbone has side chains of sulfamidic acid groups. The polyamide sulfamidic acid may be represented by the formula:where Ar1 and Ar2 are each an aromatic ring or a group containing an aromatic ring and n is the average degree of polymerization and is an integer between 100-300,000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.