Methods for producing fuel cell units and fuel cell stacks

Details Methods for producing fuel cell units and fuel cell stacks Methods for producing fuel cell units and fuel cell stacks

2005-05-17

2005-05-17

Bell, Bruce F. (Department: 1746)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S006000, C429S006000, C429S006000, C029S623200, C029S623300, C029S623500, C029S730000

Reexamination Certificate

active

06893767

ABSTRACT:
A method for producing a fuel cell unit including a membrane electrode assembly formed by a solid polymer electrolyte membrane and a pair of electrodes located at both sides of the solid polymer electrolyte membrane, and a pair of separators which hold the membrane electrode assembly. The method includes the steps of applying liquid sealant to one of a marginal portion of the solid polymer electrolyte membrane, the marginal portion being not covered by the pair of electrodes when assembled, and a surface of each of the pair of separators, the surface corresponding to the marginal portion of the solid polymer electrolyte membrane; holding the solid polymer electrolyte membrane with the pair of separators to perform temporary assembling; and solidifying the liquid sealant while maintaining a temporary assembling state.

REFERENCES:
patent: 5336570 (1994-08-01), Dodge, Jr.
patent: 5458989 (1995-10-01), Dodge
patent: 5464700 (1995-11-01), Steck et al.
patent: 5509942 (1996-04-01), Dodge
patent: 6699613 (2004-03-01), Inoue et al.
patent: 07-249417 (1995-09-01), None

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