Fuel cell stack having coolant passage whose lower area has...

Details Fuel cell stack having coolant passage whose lower area has... Fuel cell stack having coolant passage whose lower area has...

2006-11-14

2010-10-26

Yuan, Dah-Wei (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S006000, C429S006000

Reexamination Certificate

active

07820315

ABSTRACT:
A fuel cell stack having stacked unit fuel cells, each having a pair of separators between which a membrane electrode assembly is provided, which includes an anode and a cathode. Each separator has protruding lines arranged vertically in a zigzag manner, which protrude in a direction going away from the membrane electrode assembly. A space between the anode and the protruding lines of the separator facing the anode is used as a fuel gas passage. A space between the cathode and the protruding lines of the separator facing the cathode is used as an oxidant gas passage. At least part of the separators are each arranged in close contact with another separator so that a coolant passage through which a coolant flows horizontally is formed between both separators. A lower area of the coolant passage has a larger flow resistance than that of an upper area thereof.

REFERENCES:
patent: 5547776 (1996-08-01), Fletcher et al.
patent: 2003/0203260 (2003-10-01), Lee
patent: 2003/0215695 (2003-11-01), Suzuki et al.
patent: 5-144451 (1993-06-01), None
patent: 6-251778 (1994-09-01), None
patent: 7-122280 (1995-05-01), None
patent: 07-320755 (1995-12-01), None
patent: 2000-223137 (2000-08-01), None
patent: 2002-75416 (2002-03-01), None
patent: 2003-338300 (2003-11-01), None
Japanese Office Action for Application No. 2005-331232, dated Aug. 17, 2010.

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