Chemistry: electrical current producing apparatus – product – and – Having earth feature
Patent
1995-12-12
1998-05-19
Gorgos, Kathryn L.
Chemistry: electrical current producing apparatus, product, and
Having earth feature
429 33, 429 40, 429 45, 429 46, 429193, 204290R, 204242, H01M 810, H01M 486, H01M 490, H01M 618
Patent
active
057533857
ABSTRACT:
The use of vapor deposition techniques enables synthesis of the basic components of a solid oxide fuel cell (SOFC); namely, the electrolyte layer, the two electrodes, and the electrolyte-electrode interfaces. Such vapor deposition techniques provide solutions to each of the three critical steps of material synthesis to produce a thin film solid oxide fuel cell (TFSOFC). The electrolyte is formed by reactive deposition of essentially any ion conducting oxide, such as defect free, yttria stabilized zirconia (YSZ) by planar magnetron sputtering. The electrodes are formed from ceramic powders sputter coated with an appropriate metal and sintered to a porous compact. The electrolyte-electrode interface is formed by chemical vapor deposition of zirconia compounds onto the porous electrodes to provide a dense, smooth surface on which to continue the growth of the defect-free electrolyte, whereby a single fuel cell or multiple cells may be fabricated.
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A.F. Jankowski et al., Sputter Deposition Of Yttria-Stabilized Zirconia Onto A Porous Au Substrate, J. Vac. Sci. Technol. A 13(3), May/Jun. 1995.
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Jankowski Alan F.
Makowiecki Daniel M.
Rambach Glenn D.
Randich Erik
Carnahan L. E.
Gorgos Kathryn L.
Noguerda Alex
Regents of the University of California
Sartorio Henry P.
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