Method of electrode fabrication for solid oxide electrochemical

Details Method of electrode fabrication for solid oxide electrochemical Method of electrode fabrication for solid oxide electrochemical

1990-02-01

1990-11-20

Pianalto, Bernard

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427115, 427123, 427125, 4271263, 427201, 427203, 427205, 427377, 4273833, 427423, B05D 100

Patent

active

049718304

ABSTRACT:
A process for fabricating cermet electrodes for solid oxide electrochemical cells by sintering is disclosed. First, a porous metal electrode is fabricated on a solid oxide cell, such as a fuel cell by, for example, sintering, and is then infiltrated with a high volume fraction stabilized zirconia suspension. A second sintering step is used to sinter the infiltrated zirconia to a high density in order to more securely attach the electrode to the solid oxide electrolyte of the cell. High performance fuel electrodes can be obtained with this process. Further electrode performance enhancement may be achieved if stabilized zirconia doped with cerium oxide, chromium oxide, titanium oxide, and/or praseodymium oxide for electronic conduction is used.

REFERENCES:
patent: 4490444 (1984-12-01), Isenberg
patent: 4582766 (1986-04-01), Isenberg et al.
patent: 4597170 (1986-07-01), Isenberg

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