The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 23, 2018

Filed:

Mar. 26, 2013
Applicants:

Sumitomo Electric Industries, Ltd., Osaka-shi, Osaka, JP;

Kyoto University, Kyoto-shi, Kyoto, JP;

Inventors:

Chihiro Hiraiwa, Itami, JP;

Masatoshi Majima, Itami, JP;

Atsushi Yamaguchi, Itami, JP;

Naho Mizuhara, Itami, JP;

Tetsuya Uda, Kyoto, JP;

Donglin Han, Kyoto, JP;

Akiko Kuramitsu, Kyoto, JP;

Assignees:

SUMITOMO ELECTIC INDUSTRIES, LTD., Osaka-shi, Osaka, JP;

KYOTO UNIVERSITY, Kyoto-shi, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/12 (2016.01); C04B 35/48 (2006.01); H01B 1/12 (2006.01); H01M 8/1253 (2016.01); H01M 4/88 (2006.01); C04B 35/486 (2006.01); C04B 35/626 (2006.01); H01M 8/124 (2016.01);
U.S. Cl.
CPC ...
H01M 8/12 (2013.01); C04B 35/48 (2013.01); C04B 35/486 (2013.01); C04B 35/6261 (2013.01); H01B 1/122 (2013.01); H01M 4/8889 (2013.01); H01M 4/8896 (2013.01); H01M 8/1253 (2013.01); C04B 2235/3215 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/661 (2013.01); C04B 2235/761 (2013.01); C04B 2235/786 (2013.01); C04B 2235/9607 (2013.01); H01M 2008/1293 (2013.01); H01M 2300/0077 (2013.01); Y02E 60/525 (2013.01); Y02P 70/56 (2015.11);
Abstract

Provided is a solid electrolyte made of yttrium-doped barium zirconate having hydrogen ion conductivity, a doped amount of yttrium being 15 mol % to 20 mol %, and a rate of increase in lattice constant at 100° C. to 1000° C. with respect to temperature changes being substantially constant. Also provided is a method for manufacturing the solid electrolyte. This solid electrolyte can be formed as a thin film, and a solid electrolyte laminate can be obtained by laminating electrode layers on this solid electrolyte. This solid electrolyte can be applied to an intermediate temperature operating fuel cell.


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