Fuel cell apparatus having fuel cell stack and controller,...

Details Fuel cell apparatus having fuel cell stack and controller,... Fuel cell apparatus having fuel cell stack and controller,...

2005-12-15

2010-10-19

Ridley, Basia (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Fuel cell, subcombination thereof, or method of making or...

Process or means for control of operation

C429S457000

Reexamination Certificate

active

07816046

ABSTRACT:
A fuel cell apparatus includes a fuel cell stack of a plurality of fuel cells electrically connected in series with each other and a controller configured to control the fuel cell stack by using a part of electric power generated by the fuel cell stack. The controller is electrically connected in parallel with at least one of the fuel cells constituting the fuel cell stack, and short-circuit current of the at least one of the fuel cells is larger than that of at least one of the fuel cells constituting the fuel cell stack and not being electrically connected in parallel with the control means. With such a structure, a large electromotive force can be obtained by connecting the fuel cells in series and, simultaneously, the power generation characteristics of each fuel cell can be sufficiently utilized. Thus, the fuel cell apparatus having high power generation density can be provided.

REFERENCES:
patent: 5712052 (1998-01-01), Kawatsu
patent: 5771476 (1998-06-01), Mufford et al.
patent: 5879826 (1999-03-01), Lehman et al.
patent: 2005/0221147 (2005-10-01), Shioya et al.
S. J. Lee, et al., “Design and fabrication of a micro fuel cell array with “flip-flop” interconnection”, Journal of Power Sources, vol. 112, 2002, pp. 410-418.

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