Stackable high-temperature fuel cell

Details Stackable high-temperature fuel cell Stackable high-temperature fuel cell

2011-03-01

2011-03-01

Yuan, Dah-Wei D (Department: 1729)

Chemistry: electrical current producing apparatus, product, and

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

Grouping of fuel cells into stack or module

C429S452000, C429S465000, C429S469000

Reexamination Certificate

active

07897289

ABSTRACT:
The invention relates to stackable high-temperature fuel cells which are combined to form so-called fuel cell stacks and also can be connected to each other electrically conductively in series and/or in parallel. According to the set object, such high-temperature fuel cells are intended to form an electrically conductive connection between a cathode and an interconnector which, even at temperatures above 800° C. and also in the oxidising atmosphere prevailing during operation of fuel cells, have a sufficiently high electrical conductivity, a chemically and mechanically adequate strength or stability. The high-temperature fuel cells according to the invention are connected, on the anode-side, to a fuel supply and, on the cathode-side, to an oxidant supply. The cathode is connected electrically conductively by means of at least one resilient contact element to an interconnector. The resilient contact element has one or more regions which exert a compression force on regions of the interconnector, the contact element being formed from an electrically conductive ceramic material.

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Selcuk et al., “Elastic Properties of Ceramic Oxides Used in Solid Oxide Fuel Cells (SOFC),” Journal of the European Ceramic Society, vol. 17, pp. 1523-1532, 1997.

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