Integrated seal for a PEM fuel cell

Details Integrated seal for a PEM fuel cell Integrated seal for a PEM fuel cell

1996-11-15

1999-07-27

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 38, H01M 802

Patent

active

059288078

ABSTRACT:
The invention provides a polymer electrolyte fuel cell with distributor plates which are made of an elastic, plastically deformable material, particularly of graphite foil, and which have integrated gas or liquid ducts. In order to seal off the gas or liquid spaces with respect to one another in a simple and reasonably priced manner, elevated portions are integrated in the distributor plates made of an elastic, plastically deformable material. The distributor plates with an integrated seal can be produced by stamping using a stamping tool having corresponding elevations for forming the gas or liquid ducts and corresponding indentations for forming the sealing arrangement.

REFERENCES:
patent: 4751153 (1988-06-01), Roth
patent: 5284718 (1994-02-01), Chow et al.
patent: 5292600 (1994-03-01), Kaufman
patent: 5514487 (1996-05-01), Washington et al.

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