Method of producing interconnectors for solid oxide electrolyte fuel cells
AssigneeOsaka Gas Co., Ltd.
InventorsMasamichi Ippommatsu, Hirokazu Sasaki, Shoji Otoshi, Minoru Suzuki, Atsuko Kajimura
Life of this patent
Estimating the term…
Abstract
The invention relates to a method of producing interconnectors for solid oxide electrolyte fuel cells (SOFC). The method of the invention is characterized in that a compact thin film to serve as an interconnector is formed on a substrate by the laser ablation method. By this method, interconnectors made of a compact thin film highly accurate in composition can be produced with high productivity.
Claims7
A method of producing interconnectors for solid oxide electrolyte fuel cells comprising:
- placing a target made of an alkaline earth metal-doped LaCrO.sub.3 oxide face to face with a substrate, said alkaline earth metal-doped LaCrO.sub.3 oxide having an A site-to-B site composition ratio of 1:1 to 0.9:1;
- heating said substrate to a temperature between 700.degree. and 1,050.degree. C.;
- and
- focusing strong pulse laser beams on said target, thereby depositing elements of said target on said substrate for forming a thin film of an alkaline earth metal-doped LaCrO.sub.3 oxide on said substrate.
A method of producing interconnectors for solid oxide electrolyte fuel cells comprising:
- placing a target face to face with a substrate;
- heating said substrate to a temperature between 700.degree. and 1,050.degree. C.;
- and
- focusing strong pulse laser beams on said target, thereby depositing elements of said target on said substrate for forming a thin film on said substrate, said thin film and said target being a same material.
A method as claimed in 3, wherein the substrate is made of an LaMnO.sub.3 oxide.
A method of producing interconnectors for solid oxide electrolyte fuel cells comprising:
- placing a target made of an LaCrO.sub.3 oxide face to face with a substrate, said LaCrO.sub.3 oxide having an A site-to-B site composition ratio of 1:1 to 0.9:1;
- heating said substrate to a temperature between 700.degree. and 1,050.degree. C.;
- and
- focusing strong pulse laser beams on said target, thereby depositing elements of said target on said substrate for forming a thin film of an LaCrO.sub.3 oxide on said substrate.
A method as claimed in 6, wherein the substrate is made of an LaMnO.sub.3 oxide.
Dependencies are inferred from the claim text.