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SORFC system with non-noble metal electrode compositions

  • US 8,053,136 B2
  • Filed: 01/07/2011
  • Issued: 11/08/2011
  • Est. Priority Date: 09/10/2003
  • Status: Active Grant
First Claim
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1. A solid oxide regenerative fuel cell, comprising:

  • a ceramic electrolyte;

    a first electrode which is adapted to be positively biased when the fuel cell operates in a fuel cell mode and in an electrolysis mode;

    a second electrode which is adapted to be negatively biased when the fuel cell operates in the fuel cell mode and in the electrolysis mode; and

    a first device which provides a sufficient reducing atmosphere to the second electrode when the fuel cell operates in the electrolysis mode to prevent the second electrode from oxidizing;

    wherein the second electrode comprises less than 1 mg/cm2 of noble metal.

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