Fuel cell and metallic separator with varied bead seal width and angle
US11011758B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2017 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | Sep 30, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power generation cell (fuel cell) includes a membrane electrode assembly and first and second metallic separators arranged respectively on opposite sides of the membrane electrode assembly. An oxygen containing gas supply passage, a communication passage bead section (bead seal) that surrounds the oxygen containing gas supply passage, and a bridge section are disposed on the first metallic separator. At a location where the bridge section is disposed, the width of a root section of the communication passage bead section is greater than the width of the root section of the communication passage bead section at other locations thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.