Fuel cell bipolar separator plate and current collector assembly and method of manufacture
US7279016B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 2004 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Jan 22, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fuel cell bipolar separator plate of variable length is formed from a sheet having a fixed width. The sheet is passed through a tool a predetermined distance and a pattern of ribs is formed on a central portion of the sheet with the tool to define a segment along the length of the sheet. The ribs define a fuel flow path on a first side of the sheet and an oxidant flow path on an opposed second side of the sheet. The sheet is passed through a tool a predetermined distance and the steps of forming the pattern on the sheet and passing the sheet through the tool are repeated until the sheet possesses a desired length, at which point the sheet is cut to a desired length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.