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US 12,388,091 B2Granted
Solid oxide fuel cell and manufacturing method of the same
AssigneeTaiyo Yuden Co., Ltd.
InventorsXinyu Li, Chie Kawamura
Life of this patent
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Abstract
A solid oxide fuel cell includes a support of which a main component is a metal, and an anode supported by the support, wherein the anode includes a first oxide having electron conductivity, wherein the first oxide is perovskite type oxide expressed as a composition formula ABO3, wherein “A” of the composition formula includes at least one of Ca, Sr, Ba and La, wherein “B” of the composition formula includes at least Cr.
Claims12
A solid oxide fuel cell comprising:
- a support of which a main component is a metal;
- an anode supported by the support;
- and
- a mixed layer provided between the support and the anode,
- wherein the anode includes a first oxide which is LaCrO3-based perovskite of which an A site is only La and of which a B site is only Cr and Ti and a second oxide having oxygen ion conductivity,
- wherein the support, the mixed layer and the anode are sintered bodies which are obtained by arranging a powder material of a LaCrO3-based material and a powder metal material for the mixed layer mixed together with a width in a stacking direction, on a powder metal material for the support, and arranging a powder material including the first oxide on the powder material of a LaCrO3-based material and a powder metal material for the mixed layer, and sintering the powder metal material for the support, the powder material of a LaCrO3-based material and the powder metal material for the mixed layer, and the powder material including the first oxide,
- wherein the LaCrO3-based material of the mixed layer is LaCrO3-based perovskite of which an A site is only La and of which a B site is only Cr or only Cr and Ti,
- wherein the anode forms an electrode bone structure with the first oxide and the second oxide having oxygen ion conductivity,
- wherein the bone structure contains no metallic component, is spatially continuously formed, and includes pores and catalysts, and
- wherein each of the catalysts is carried on a surface exposed to each of the pores,
- wherein an ohmic resistance of the solid oxide fuel cell as a whole is 0.26 Ω·cm2 or less, and
- wherein a reaction resistance of the anode is 0.28 Ω·cm2 or less.
9 more elements
Dependencies are inferred from the claim text.