Fuel cell stacks for ultra-high efficiency power systems

Details Fuel cell stacks for ultra-high efficiency power systems Fuel cell stacks for ultra-high efficiency power systems

1998-11-02

2000-07-04

Valentine, Donald R.

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

429 16, 429 17, 429 20, 429 24, 429 31, 429 33, H01M 800, H01M 814, H01M 804, H01M 818, H01M 810

Patent

active

060836369

ABSTRACT:
A system and method for producing electricity with a fuel cell power system. The power system includes an assembly of fuel cell stacks that operate at different temperatures, which vary between two or more of the fuel cell stacks. The fuel cell stack can have multiple temperature regions formed axially along the stack, or a plurality of spatially separated fuel cell stacks can be employed to heat a reactant from an input temperature to a desired temperature. The fuel cell stacks have operating temperatures in the range between about 20.degree. C. and about 2000.degree. C.

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