Laminated fluid flow field assembly for electrochemical fuel cel

Details Laminated fluid flow field assembly for electrochemical fuel cel Laminated fluid flow field assembly for electrochemical fuel cel

1993-03-01

1994-04-05

Willis, Jr., Prince

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 38, 429 39, H01M 804

Patent

active

053003705

ABSTRACT:
A laminated fluid flow field assembly for an electrochemical fuel cell comprises a separator layer and a stencil layer. The separator layer is formed of electrically conductive, substantially fluid impermeable sheet material. The stencil layer is formed of electrically conductive sheet material, and has a fluid inlet and at least one opening extending between its major surfaces and in fluid communication with the fluid inlet. The separator layer and the stencil layer are consolidated along one of their major surfaces. In operation, the separator layer and the stencil layer cooperate to form an open-faced channel for conducting pressurized fluid introduced at the fluid inlet.

REFERENCES:
patent: 4988583 (1991-01-01), Watkins et al.
patent: 5108849 (1992-04-01), Watkins et al.
patent: 5230966 (1993-07-01), Voss et al.
Interim Report: "New Membrane-Catalyst For Solid Polymer Electrolyte Systems", P.O. No. 9-X53-D6272-1, Prepared for University of California, Los Alamos National Laboratory, General Electrical Company, 1984.
Product Description: "GRAFOIL Flexible Graphite Quick Reference Grade Guide", UCAR Carbon Company, Inc., 1991.

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