Solid electrolyte type fuel cell and method for producing the sa

Details Solid electrolyte type fuel cell and method for producing the sa Solid electrolyte type fuel cell and method for producing the sa

1992-07-15

1994-08-30

Springer, David B.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

H01M 812

Patent

active

053427033

ABSTRACT:
A solid electrolyte type fuel cell having decreased internal resistance and increased output and improved fuel utilization efficiency is provided. The fuel cell includes an air electrode substrate made of a perovskite series complexed oxide having the following composition of a formula (La.sub.1-y A.sub.y)MO.sub.3, wherein A is at least one element selected from alkaline earth metals, M is manganese or cobalt, and y is 0.ltoreq.y.ltoreq.0.4, a zirconia solid electrolyte film containing manganese or cobalt solid soluted at at least the neighborhood of the interface thereof with the air electrode substrate, and a fuel electrode film formed on the solid electrolyte film at a surface opposite to the air electrode substrate. The fuel cell does not include a highly resistive layer made of a compound containing lanthanum and zirconium at the interface between the air electrode substrate and the solid electrolyte film. Methods for producing the fuel cell are also disclosed.

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