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Cassettes for solid-oxide fuel cell stacks and methods of making the same

United States Patent

October 23, 2012
View the Complete Patent at the US Patent & Trademark Office
Solid-oxide fuel cell (SOFC) stack assembly designs are consistently investigated to develop an assembly that provides optimal performance, and durability, within desired cost parameters. A new design includes a repeat unit having a SOFC cassette and being characterized by a three-component construct. The three components include an oxidation-resistant, metal window frame hermetically joined to an electrolyte layer of a multi-layer, anode-supported ceramic cell and a pre-cassette including a separator plate having a plurality of vias that provide electrical contact between an anode-side collector within the pre-cassette and a cathode-side current collector of an adjacent cell. The third component is a cathode-side seal, which includes a standoff that supports a cathode channel spacing between each of the cassettes in a stack. Cassettes are formed by joining the pre-cassette and the window frame.
Weil; K. Scott (Richland, WA), Meinhardt; Kerry D. (Kennewick, WA), Sprenkle; Vincent L. (Richland, WA)
Battelle Memorial Institute (Richland, WA)
12/ 242,165
September 30, 2008
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with United States Government support under Contract DE-FC2602NT41246 awarded by the U.S. Department of Energy. The Government has certain rights in this invention.