Co-doped YSZ electrolytes for solid oxide fuel cell stacks
AssigneeSaint-Gobain Ceramics & Plastics, Inc.
InventorsYeshwanth Narendar, Guangyong Lin, Aravind Mohanram
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Abstract
A solid oxide fuel cell electrolyte is fabricated by combining an yttria-stabilized zirconia powder with α-Al2O3 having a d50 particle size in a range of between about 10 nm and about 200 nm and Mn2O3 to form an electrolyte precursor composition, and then sintering the electrolyte precursor composition to thereby form the electrolyte. The α-Al2O3 and Mn2O3 can be present in the electrolyte precursor composition in an amount in a range of between about 0.25 mol % and about 5 mol %. The electrolyte can be a component of a solid oxide fuel cell of the invention.
Claims20
A method for forming an electrolyte of a solid oxide fuel cell, comprising the steps of:
- a) combining an yttria-stabilized zirconia powder with α-Al2O3 having a d50 particle size in a range of between about 10 nm and about 200 nm and Mn2O3 to form an electrolyte precursor composition;
- and
- b) sintering the electrolyte precursor composition to thereby form the electrolyte.
An electrolyte of a solid oxide fuel cell that is doped with α-Al2O3 and Mn2O3.
A solid oxide fuel cell that includes an electrolyte component doped with α-Al2O3 and Mn2O3.
Dependencies are inferred from the claim text.