Method and system for starting up fuel cell stack at subzero...

Details Method and system for starting up fuel cell stack at subzero... Method and system for starting up fuel cell stack at subzero...

2004-09-07

2009-08-11

Ryan, Patrick (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

C429S006000, C429S006000

Reexamination Certificate

active

07572529

ABSTRACT:
A method of starting up at a subzero temperature a solid polymer electrolyte fuel cell stack that is formed by stacking a plurality of layers of separators and membrane electrode assemblies having a solid polymer electrolyte membrane and electrodes. The method includes a step of using a solid polymer electrolyte fuel cell stack in which the separators are made from metal and have a cross-sectional waveform structure, and a space that is formed between at least a portion of the separators and separators that are placed adjacent to this portion of the separators is used as a coolant flow passage.

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