Integrated seal for a PEM fuel cell
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United States of America Patent
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-
Jul 27, 1999
Grant Date -
N/A
app pub date -
Nov 15, 1996
filing date -
Nov 15, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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