Fuel cell stack

Details Fuel cell stack Fuel cell stack

1995-08-17

1996-08-06

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 39, H01M 804

Patent

active

055432409

ABSTRACT:
A fuel cell stack is provided in which a reaction gas can be uniformly distributed among fuel cell units disposed within the stack. In particular, the fuel cell stack contains a plurality of fuel cell blocks which are stacked upon each other, and each fuel cell block contains a plurality of fuel cell units which are stacked upon each other. The reaction gas is supplied to each fuel cell block via an external manifold located outside the fuel cell stack. An internal manifold is located within each fuel cell block and receives the reaction gas from the external manifold. Subsequently, the internal manifold distributes the gas to each fuel cell unit. As a result, the fuel cell stack is able to uniformly distribute the reaction gas to each fuel cell unit, thereby increasing the efficient utilization of fuel.

REFERENCES:
patent: 4345009 (1982-08-01), Fahle et al.
patent: 4508793 (1985-04-01), Kumata et al.
patent: 4623596 (1986-11-01), Kamoshita
patent: 4706737 (1987-11-01), Taylor et al.
patent: 4714661 (1987-12-01), Kaun et al.
patent: 5376472 (1994-12-01), Hartvigsen et al.
patent: 5480738 (1996-01-01), Elangovan et al.

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