Multi-zone voltage fuel cell

Details Multi-zone voltage fuel cell Multi-zone voltage fuel cell

2004-08-25

2010-02-09

Yuan, Dah-Wei D (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S006000, C429S006000

Reexamination Certificate

active

07659023

ABSTRACT:
The present invention is directed to an electrochemical fuel cell. The configuration of the fuel cell stack provides a multiple-legged current flow path therethrough. Electrically isolated zones are formed in the cells and one coupled in a serial manner. This configuration provides incremental voltage summing such that additional power converting element are not needed to match the stack output to the load.

REFERENCES:
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patent: 5190834 (1993-03-01), Kendall
patent: 6280870 (2001-08-01), Eisman et al.
patent: 6372376 (2002-04-01), Fronk et al.
patent: 2005/0100771 (2005-05-01), Vyas et al.
patent: WO 0195416 (2001-12-01), None
S.J. Lee et al., “Design with fabrication of a micro fuel cell array with ‘flip-flip’ interconnection,” Journal of Power Sources 112 (2002), pp. 410-418.
C. Hebling, “Technology and Markets of Micro Fuel Cell Systems,” undated (2 pages).

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