PROTON-CONDUCTING ELECTROLYTE

Title:

PROTON-CONDUCTING ELECTROLYTE

Document Type and Number:

WIPO Patent Application WO/2018/159584

Kind Code:

A1

Abstract:

[Problem] In electrolytes of solid oxide type cells, it is required that it be possible to simultaneously suppress both gas cross leakage and electron leakage. From the viewpoint of reducing the material cost and electrical resistance of an electrolyte, it is important that the electrolyte be a thin film and that expensive noble metals not be used. The present invention addresses the problem of providing: a proton-conducting thin film electrolyte capable of simultaneously suppressing gas cross leakage and electron leakage; a solid oxide cell using the proton-conducting thin film electrolyte; and a method for manufacturing the solid oxide cell. [Solution] The present invention provides a proton-conducting electrolyte using a proton-conducting oxide material, the proton-conducting electrolyte being characterized by having a first portion containing Me (Me = at least one among Ti, Mn, Fe, Co, Ni, and Cu) and a second portion having an Me content different from that of the first portion.

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Inventors:

SHIMADA HIROYUKI (JP)
YAMAGUCHI TOSHIAKI (JP)

Application Number:

PCT/JP2018/007159

Publication Date:

September 07, 2018

Filing Date:

February 27, 2018

Export Citation:

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Assignee:

AIST (JP)

International Classes:

H01M8/1246; H01B1/06; H01B1/08; H01M8/12

Domestic Patent References:

WO2017030023A1

2017-02-23

Foreign References:

JP2016031933A	2016-03-07
JP2012084460A	2012-04-26
JP2012221556A	2012-11-12
JP2016183094A	2016-10-20

Other References:

CHOI, SUNGMIN ET AL.: "Fabrication of anode-supported protonic ceramic fuel cell with Ba (Zr0.85Y0.15) O3-delta- Ba (Ce0.9Y0.1) O3-6 dual-layer electrolyte", INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol. 39, 2014, pages 12812 - 12818, XP029009796
F. ZHAOC.JINC. YANGS.WANGF. CHEN, JOURNAL OF POWER SOURCES, vol. 196, 2011, pages 688 - 691
S. NIKODEMSKIJ. TONGR. O'HAYRE, SOLID STATE IONICS, vol. 253, 2013, pages 201 - 210
Y. OKUYAMA1N. EBIHARAK. OKUYAMAY. MIZUTANI, ECS TRANSACTIONS, vol. 68, no. 1, 2015, pages 2545 - 2553
N. ITOM. LIJIMAK. KIMURAS. IGUCHI, JOURNAL OF POWER SOURCES, vol. 152, 2005, pages 200 - 203
See also references of EP 3591753A4

Attorney, Agent or Firm:

NISHIZAWA Toshio (JP)

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