H - Electricity – 01 – M
Patent
H - Electricity
01
M
319/22
H01M 4/66 (2006.01) C23C 16/02 (2006.01) C23C 16/40 (2006.01) C23C 20/08 (2006.01) C23C 24/08 (2006.01) H01M 4/88 (2006.01) H01M 8/02 (2006.01) H01M 8/24 (2006.01)
Patent
CA 1310061
18 ABSTRACT OF THE DISCLOSURE A dense, electronically conductive inter- connection layer 26 is bonded onto a porous, tubular, electronically conductive air electrode structure 16, optionally supported by a ceramic support 22, by (A) providing the air electrode surface, (B) forming on a selected portion of the electrode surface 24, without the use of pressure, particles of LaCrO3 doped with an element selected from the group consisting of Sr, Mg, Ca, Ba, Co, and mixtures thereof, where the particles have a deposit on their surface comprising calcium oxide and chromium oxide; (C) heating the particles with the oxide surface deposit in an oxidizing atmosphere at from 1,300°C to 1,550°C, without the application of pressure, to provide a dense, sintered, interconnection material 26 bonded to the air electrode 16, where calcium and chromium from the surface deposit are incorporated into the structure of the LaCrO3. A solid electrolyte layer 18 can be applied to the uncovered portion of the air electrode, and a fuel electrode 20 can be applied to the solid electrolyte, to provide an electro- chemical cell 10.
588779
Bowker Jeffrey C.
Singh Prabhakar
Bowker Jeffrey C.
Singh Prabhakar
Smart & Biggar
Westinghouse Electric Corporation
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