Bipolar plate fabrication
US7258263B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2003 |
| Grant date | Aug 21, 2007 |
| Priority date | — |
| Expiry date | May 3, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49371
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for making a current collector plate includes providing a first sheet of material having a first bonding face and a first outer face. A second sheet of material is provided having a second bonding face and a second outer face. A work area is defined on at least one of the first bonding face and the second bonding face. The first and second sheets are bonded together at a bonding area which is different from the work area. The bonded first and second sheet is placed into a die having a pattern defining at least one flow channel. Fluid is injected between the first and second sheets thereby causing at least one of the first and second sheets to project outward at the work area causing at least one flow channel to be formed in the work area as defined by the die pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.