Compact solid oxide fuel cell stack
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United States of America Patent
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Aug 14, 2012
Grant Date -
Jun 22, 2006
app pub date -
Dec 17, 2003
filing date -
Dec 17, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention relates to a solid oxide fuel cell stack comprising a plurality of tubular solid oxide fuel cells each comprising concentric inner and outer electrode layers sandwiching a concentric electrolyte layer. The fuel cells extend in the same direction and are arranged in a cluster with at least one fuel cell having an electrolyte layer with a different composition and different maximum operating temperature than another fuel cell in the cluster. The fuel cell having the electrolyte layer with a higher maximum operating temperature is located closer to the core of the cluster than the fuel cell having the electrolyte layer with a lower maximum operating temperature.
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