Bipolar plate fabrication

Details Bipolar plate fabrication Bipolar plate fabrication

2007-08-21

2007-08-21

Johnson, Jonathan (Department: 1725)

Metal fusion bonding

Process

With shaping

C228S215000, C228S235200, C228S183000, C029S890042

Reexamination Certificate

active

10738481

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.

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patent: 6503653 (2003-01-01), Rock
patent: 56-89343 (1981-07-01), None

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