Solid oxide fuel cells, and air electrode and electrical interco

Details Solid oxide fuel cells, and air electrode and electrical interco Solid oxide fuel cells, and air electrode and electrical interco

1990-10-22

1992-09-01

Dixon, Jr., William R.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 30, 429 40, H01M 810

Patent

active

051438011

ABSTRACT:
In one aspect of the invention, an air electrode material for a solid oxide fuel cell comprises Y.sub.1-a Q.sub.a MnO.sub.3, where "Q" is selected from the group consisting of Ca and Sr or mixtures thereof and "a" is from 0.1 to 0.8. Preferably, "a" is from 0.4 to 0.7. In another aspect of the invention, an electrical interconnection material for a solid oxide fuel cell comprises Y.sub.1-b Ca.sub.b Cr.sub.1-c Al.sub.c O.sub.3, where "b" is from 0.1 to 0.6 and "c" is from 0 to 9.3. Preferably, "b" is from 0.3 to 0.5 and "c" is from 0.05 to 0.1. A composite solid oxide electrochemical fuel cell incorporating these materials comprises:

REFERENCES:
patent: 4767518 (1988-08-01), Maskalick
patent: 4894297 (1990-01-01), Singh et al.
patent: 5035962 (1991-07-01), Jenson

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