Electrochemical fuel cell elements having improved compression over channels
US7687183B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 25, 2004 |
| Grant date | Mar 30, 2010 |
| Priority date | — |
| Expiry date | Jan 28, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrically conductive element and a related assembly are provided for use in an electrochemical cell. The electrically conductive separator plate has an upper boundary and a lower boundary. The upper boundary has at least one land formed therein, where the land has a surface defining a first plane and the lower boundary defines a second plane. The first plane extends towards said second plane, so as to intersect with said second plane at an angle greater than zero. An assembly further comprises a compliant layer which substantially conforms to the angled land surfaces, thereby enhancing contact pressure between and across a plurality of components in the compliant layer. A method of assembling such a separator assembly in a fuel cell is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.