Solid oxide fuel cell

Details Solid oxide fuel cell Solid oxide fuel cell

2005-06-09

2010-06-29

Mayes, Melvin C (Department: 1793)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S010000, C429S006000, C427S115000, C252S062200, C029S623500

Reexamination Certificate

active

07745031

ABSTRACT:
SOFC cell comprising a metallic support1ending in a substantially pure electron conducting oxide, an active anode layer2consisting of doped ceria, ScYSZ, Ni—Fe alloy, an electrolyte layer3consisting of co-doped zirconia based on oxygen ionic conductor, an active cathode layer5and a layer of a mixture of LSM and a ferrite as a transition layer6to a cathode current collector7of single phase LSM. The use of a metallic support instead of a Ni—YSZ anode support increases the mechanical strength of the support and secures redox stability of the support. The porous ferrite stainless steel ends in a pure electron conducting oxide so as to prevent reactivity between the metals in the active anode which tends to dissolve into the ferrite stainless steel causing a detrimental phase shift from ferrite to austenite structure.

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