Proton exchange membrane fuel cell with stepped channel bipolar plate
US9786928B2 · kind B2 · utility
0Cited by
12References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2012 |
| Grant date | Oct 10, 2017 |
| Priority date | — |
| Expiry date | Apr 1, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fuel cell stack includes a membrane electrode assembly and a bipolar plate. The bipolar plate has a corrugated portion defined by an adjacent pair of proximal and distal peak portions and a sidewall segment connecting the peak portions. The sidewall segment and membrane electrode assembly at least partially define a flow channel. The sidewall segment includes a shoulder portion defining a step spaced away from the peak portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.