Sealing material for fuel cell
US6451468B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 7, 2000 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Dec 7, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A liquid resin composition (26) comprising A) an addition-polymerizable oligomer which has, as the backbone thereof, a linear polyisobutylene or perfluoropolyether structure and has an alkenyl group at least at each end, B) a hardener containing, in its molecule thereof, at least two hydrogen atoms each bonded to a silicon atom, and C) a hydrosilylation catalyst is three-dimensionally crosslinked to form a sealing layer in a unit cell (20) of a fuel cell assembly to thereby seal separators (24) and (25), a pair of electrodes (22) and (23), and an ion-exchange resin (21) as a solid electrolyte. Thus, each cell can be reduced in thickness and size to enable the fuel cell assembly to have a high output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.