Title:
SOLID ELECTROLYTE MEMBER, SOLID OXIDE FUEL CELL, WATER ELECTROLYSIS DEVICE, HYDROGEN PUMP, AND METHOD FOR PRODUCING SOLID ELECTROLYTE MEMBER
Document Type and Number:
WIPO Patent Application WO/2018/230248
Kind Code:
A1
Abstract:
Provided is a proton-conductive solid electrolyte member having a structure in which an electrolyte layer is layered on an anode layer. The electrolyte layer contains a metal oxide having a perovskite crystal structure, the anode layer contains NiO and the metal oxide, the metal oxide is a metal oxide represented by formula [1] or a mixture or a solid solution of the metal oxide represented by formula [1], and the difference between the thermal expansion coefficient of the electrolyte layer in contact with the anode layer and the thermal expansion coefficient of the anode layer is 2.5 × 10-6K-1 or less. Formula [1]: AaBbMcO3-δ1 (in the formula, A represents at least one element selected from the group consisting of Ba, Ca, and Sr, B represents at least one element selected from the group consisting of Ce and Zr, M represents at least one element selected from the group consisting of Y, Yb, Er, Ho, Tm, Gd, In, and Sc, a satisfies 0.85 ≤ a ≤ 1, b satisfies 0.50 ≤ b < 1, c satisfies c = 1 – b, and δ1 is the oxygen deficiency amount).
Inventors:
HIRAIWA CHIHIRO (JP)
KANDA RYOKO (JP)
HIGASHINO TAKAHIRO (JP)
MAJIMA MASATOSHI (JP)
KANDA RYOKO (JP)
HIGASHINO TAKAHIRO (JP)
MAJIMA MASATOSHI (JP)
Application Number:
PCT/JP2018/019093
Publication Date:
December 20, 2018
Filing Date:
May 17, 2018
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H01M8/1213; C01B3/56; C04B35/488; C04B35/50; C25B9/23; H01B1/06; H01B1/08; H01M4/86; H01M8/12; H01M8/1253; H01M8/126
Domestic Patent References:
| WO2016076078A1 | 2016-05-19 | |||
| WO2017014069A1 | 2017-01-26 |
Foreign References:
| JP2007087747A | 2007-04-05 | |||
| JPH10228911A | 1998-08-25 | |||
| JP2017071831A | 2017-04-13 |
Attorney, Agent or Firm:
NAKATA Motomi et al. (JP)
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