Fuel cell with improved sealing between individual membrane assemblies and plate assemblies
US6165634A · kind A · utility
35Cited by
11References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1998 |
| Grant date | Dec 26, 2000 |
| Priority date | — |
| Expiry date | Oct 21, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fuel cell stack includes a plurality of fuel cells, each of which includes a membrane electrode assembly and a water transport plate, or a fluid flow plate fabricated from graphite. This plate and optionally a separator plate are held in assembled relationship with one another and with the membrane electrode assemblies by a fluoroelastomeric adhesive/sealant that is also coated on the external edges of these components to provide a water-tight seal to better contain the coolant fluid in the form of water provided in the fuel cell stack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.