Sumitomo Electric Industries, Limited

Kyoto University

Akiko Kuramitsu

Atsushi Yamaguchi

Masatoshi Majima

Naho Mizuhara

Chihiro Hiraiwa

Tetsuya Uda

Donglin Han

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&#xb0; C. to 1000&#xb0; 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.

Solid electrolyte, method for manufacturing solid electrolyte, solid electrolyte laminate, method for manufacturing solid electrolyte laminate, and fuel cell

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Kyoto, Japan

Akiko Kuramitsu