Complex oxides, oxide-ion conductors, oxide-ion conducting films and electrochemical cells
AssigneeNGK Insulators, Ltd.
InventorsYoshihiko Yamamura, Kazuyuki Kaigawa, Shinji Kawasaki, Hiroaki Sakai
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Abstract
A complex oxide and an oxide-ion conductor made of the complex oxide are provided. The complex oxide has a basic composition of (Sm1-xAx)(Al1-yBy)O3, wherein “A” represents at least one element selected from the group consisting of barium, strontium and calcium, “B” represents an element selected from the group consisting of magnesium, iron and cobalt, x is a value in a range of 0.10 to 0.30, and y is a value in a range of 0 to 0.30.
Claims14
A complex oxide comprising a basic composition of (Sm1-xAx)(Al1-yBy)O3;
- wherein “A” represents at least one element selected from the group consisting of barium, strontium and calcium;
- wherein “B” represents at least one element selected from the group consisting of magnesium, iron and cobalt;
- wherein x=0.15 to 0.30;
- and
- wherein y=0 to 0.30.
An oxide-ion conductor comprising a basic composition of (Sm1-xAx)(Al1-yBy)O3;
- wherein “A” represents at least one element selected from the group consisting of barium, strontium and calcium;
- wherein “B” represents an element selected from the group consisting of magnesium, iron and cobalt;
- wherein x=0.15 to 0.30;
- and
- wherein y=0 to 0.30.
An electrochemical cell comprising a first electrode, a second electrode, an oxide-ion conducting portion and an intermediate layer;
- wherein said intermediate layer comprises a complex oxide having a basic composition of (Sm1-xAx)(Al1-yBy)O3, wherein “A” represents at least one element selected from the group consisting of barium, strontium and calcium, “B” represents at least one element selected from the group consisting of magnesium, iron and cobalt, x=0.10 to 0.30, and y=0 to 0.30;
- wherein said oxide ion conducting portion comprises an ion conductor having a composition that is different from said basic composition of said complex oxide;
- and
- wherein said intermediate layer is provided between said oxide-ion conducting portion and said first electrode.
Dependencies are inferred from the claim text.