Cathode material containing bimetal-doped barium cobaltite-based perovskite and bi-directional proton conductive fuel cell containing the same
AssigneeKorea Advanced Institute of Science and Technology
InventorsKang Taek LEE, Se Eun OH, Dong Yeon KIM
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Abstract
A cathode material comprises bimetal-doped barium cobaltite-based perovskite and a bi-directional protonic ceramic fuel cell comprising the same. In a cathode material according to an embodiment, barium cobaltite is doped with scandium (Sc) and tantalum (Ta), and the cathode material is represented by the following Formula 1: BaScxTa0.2−xCo0.8O3−δ [Formula 1] where X is 0.001<X<0.199, δ is 0<δ<2.
Claims8
A cathode material comprising a bimetal-doped barium cobaltite-based perovskite in which barium cobaltite is doped with scandium (Sc) and tantalum (Ta) and which is represented by following Formula 1:
- BaScxTa0.2−xCo0.8O3−δ [Formula 1]
- where X is 0.001<X<0.199, δ is 0<δ<2.
A method for manufacturing a cathode material comprising:
- mixing a barium precursor, a scandium precursor, a tantalum precursor, and a cobalt precursor respectively and ball milling the mixture to prepare a mixed pulverized product;
- pelletizing the mixed pulverized product to prepare a green compact;
- and
- sintering and pulverizing the green compact to prepare a bimetal-doped barium cobaltite-based perovskite powder in which barium cobaltite is doped with scandium (Sc) and tantalum (Ta) and which is represented by following Formula 1:
- BaScxTa0.2−xCo0.8O3−δ [Formula 1]
- where X is 0.001<X<0.199, δ is 0<δ<2.
Dependencies are inferred from the claim text.