Fuel cell using non-linear positive temperature coefficient...

Details Fuel cell using non-linear positive temperature coefficient... Fuel cell using non-linear positive temperature coefficient...

2006-09-19

2006-09-19

Ruthkosky, Mark (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

C429S047000

Reexamination Certificate

active

07108931

ABSTRACT:
A fuel cell (200) includes a membrane electrode assembly (210) located together with a layer of porous, z-axis electrically conductive, non-linear positive temperature coefficient (NPTC) material (250). The NPTC material (250) operates to selectively limit the amount of electrons collected from localized areas of the membrane electrode assembly (210) in order to reduce hot spots.

REFERENCES:
patent: 5910378 (1999-06-01), Debe et al.
patent: 6291568 (2001-09-01), Lussey
patent: 6495069 (2002-12-01), Lussey et al.
patent: 6756142 (2004-06-01), Muthuswamy et al.
patent: 05-089900 (1993-04-01), None

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