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SOLID ELECTROLYTIC MEMBER, SOLID OXIDE TYPE FUEL CELL, WATER ELECTROLYSIS DEVICE, HYDROGEN PUMP AND METHOD FOR MANUFACTURING SOLID ELECTROLYTIC MEMBER
PROBLEM TO BE SOLVED: To provide a large-size solid electrolytic member which shows a high proton conductivity even in a temperature region of about 700°C or under.SOLUTION: A solid electrolytic member comprises: an electrolyte layer including a metal oxide having a perovskite type crystal structure; and an anode layer including NiO and a metal oxide, in which the content of NiO in a region A ranging from a surface of the anode on an opposite side layer to the electrolyte layer to 5 μm in a thickness direction is lower than that in a region B of up to 70% from the center of the anode layer in the thickness direction toward opposing ends in the thickness direction. The metal oxide is a metal oxide represented by the following formula [1], or a mixture or solid solution of a metal oxide represented by the formula [1]: ABMO[1] (where A, B and M represent at least one element selected from a particular element group, a is a number that satisfies 0.85≤a≤1; b is a number that satisfies 0.50≤b<1; c is a number that satisfies c=1-b; δ is an oxygen deficiency amount).SELECTED DRAWING: Figure 1
【課題】７００℃程度以下の温度域でも高いプロトン伝導性を示し、かつ大型の固体電解質部材の提供。【解決手段】電解質層はペロブスカイト型結晶構造を有する金属酸化物を含む層であり、アノード層はＮｉＯ及び金属酸化物を含む層であり、かつ、アノード層の電解質層とは反対側の表面から厚み方向に５μｍまでの領域ＡにおけるＮｉＯの含有率が、アノード層の厚み方向の中央部から厚み方向の両端部に向かって７０％までの領域ＢにおけるＮｉＯの含有率よりも低く、金属酸化物は式［１］で表される金属酸化物又は式［１］で表される金属酸化物の混合物もしくは固溶体である固体電解質部材。ＡａＢｂＭｃＯ３−δ式［１］（Ａ、ＢおよびＭは特定の元素群より選ばれた少なくとも１種の元素を示し、ａは０．８５≦ａ≦１を満たす数、ｂは０．５０≦ｂ＜１を満たす数、ｃはｃ＝１−ｂを満たす数、δは酸素欠損量）【選択図】図１
SOLID ELECTROLYTIC MEMBER, SOLID OXIDE TYPE FUEL CELL, WATER ELECTROLYSIS DEVICE, HYDROGEN PUMP AND METHOD FOR MANUFACTURING SOLID ELECTROLYTIC MEMBER
PROBLEM TO BE SOLVED: To provide a large-size solid electrolytic member which shows a high proton conductivity even in a temperature region of about 700°C or under.SOLUTION: A solid electrolytic member comprises: an electrolyte layer including a metal oxide having a perovskite type crystal structure; and an anode layer including NiO and a metal oxide, in which the content of NiO in a region A ranging from a surface of the anode on an opposite side layer to the electrolyte layer to 5 μm in a thickness direction is lower than that in a region B of up to 70% from the center of the anode layer in the thickness direction toward opposing ends in the thickness direction. The metal oxide is a metal oxide represented by the following formula [1], or a mixture or solid solution of a metal oxide represented by the formula [1]: ABMO[1] (where A, B and M represent at least one element selected from a particular element group, a is a number that satisfies 0.85≤a≤1; b is a number that satisfies 0.50≤b<1; c is a number that satisfies c=1-b; δ is an oxygen deficiency amount).SELECTED DRAWING: Figure 1
【課題】７００℃程度以下の温度域でも高いプロトン伝導性を示し、かつ大型の固体電解質部材の提供。【解決手段】電解質層はペロブスカイト型結晶構造を有する金属酸化物を含む層であり、アノード層はＮｉＯ及び金属酸化物を含む層であり、かつ、アノード層の電解質層とは反対側の表面から厚み方向に５μｍまでの領域ＡにおけるＮｉＯの含有率が、アノード層の厚み方向の中央部から厚み方向の両端部に向かって７０％までの領域ＢにおけるＮｉＯの含有率よりも低く、金属酸化物は式［１］で表される金属酸化物又は式［１］で表される金属酸化物の混合物もしくは固溶体である固体電解質部材。ＡａＢｂＭｃＯ３−δ式［１］（Ａ、ＢおよびＭは特定の元素群より選ばれた少なくとも１種の元素を示し、ａは０．８５≦ａ≦１を満たす数、ｂは０．５０≦ｂ＜１を満たす数、ｃはｃ＝１−ｂを満たす数、δは酸素欠損量）【選択図】図１
SOLID ELECTROLYTIC MEMBER, SOLID OXIDE TYPE FUEL CELL, WATER ELECTROLYSIS DEVICE, HYDROGEN PUMP AND METHOD FOR MANUFACTURING SOLID ELECTROLYTIC MEMBER
固体電解質部材、固体酸化物型燃料電池、水電解装置、水素ポンプ及び固体電解質部材の製造方法
KANDA RYOKO (author) / NODA YOHEI (author) / HIGASHINO TAKAHIRO (author) / HIRAIWA CHIHIRO (author) / TAWARAYAMA HIROMASA (author) / MASHIMA MASATOSHI (author) / AWAZU TOMOYUKI (author)
2018-09-06
Patent
Electronic Resource
Japanese
IPC:
H01M
Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie
,
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
/
C04B
Kalk
,
LIME
/
C25B
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS
,
Elektrolytische oder elektrophoretische Verfahren für die Herstellung von Verbindungen oder von nichtmetallischen Elementen
/
H01B
CABLES
,
Kabel
| European Patent Office | 2018
| European Patent Office | 2020
| European Patent Office | 2018
| European Patent Office | 2018
| European Patent Office | 2020