Electrochemical fuel cell stack with humidification section loca

Details Electrochemical fuel cell stack with humidification section loca Electrochemical fuel cell stack with humidification section loca

1994-03-15

1995-01-17

Skapars, Anthnoy

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 30, 429 34, H01M 804

Patent

active

053824784

ABSTRACT:
An electrochemical fuel cell stack has a humidification section located upstream from the electrochemically active section. The inlet fuel and oxidant streams are introduced into the humidification section without first being directed through the electrochemically active section. The upstream location of the humidification section in the stack enables the number of manifold openings in the active section to be reduced, thereby increasing the area available for the electrochemical reaction.

REFERENCES:
patent: 4973530 (1990-11-01), Vanderbergh et al.
patent: 5200278 (1993-04-01), Watkins et al.

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