Internal proton exchange membrane humidification and cooling...

Details Internal proton exchange membrane humidification and cooling... Internal proton exchange membrane humidification and cooling...

2006-09-22

2009-12-29

Mayes, Melvin C (Department: 1793)

Chemistry: electrical current producing apparatus, product, and

With heat exchange feature

C429S006000, C429S006000, C429S072000, C429S081000, C429S082000, C429S089000

Reexamination Certificate

active

07638235

ABSTRACT:
A bipolar plate for a fuel cell including pores extending between cooling fluid flow channels and reactant gas flow channels defined by the plate. Pervaporation membranes cover the pores and selectively allow water in the cooling fluid flowing down the cooling fluid flow channels to pervaporate through the membrane and humidify the reactant gas flowing down the reactant gas flow channels. In one embodiment, the bipolar plate includes two stamped unipolar plates secured together.

REFERENCES:
patent: 4824741 (1989-04-01), Kunz
patent: 5176966 (1993-01-01), Epp et al.
patent: 5776624 (1998-07-01), Neutzler
patent: 6316135 (2001-11-01), Breault et al.
patent: 6794077 (2004-09-01), Yi et al.
patent: 2004/0072043 (2004-04-01), Hashimoto et al.
patent: 2007/0082245 (2007-04-01), Druenert

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