Japan Fine Ceramics Co., Ltd.

Masaki Yanagawa

Hitoshi Takamura

Akira Hatakeyama

Provided is a method for easily producing a thin-membrane solid electrolyte body. A molded body () of a first ceramic is prepared, and the molded body () is fired in a first temperature range to prepare a porous body (). A thin membrane-shaped molded body () composed of a second ceramic containing a solid electrolyte is prepared on at least a part of a surface of the porous body (). A dense body () is prepared by firing the thin membrane-shaped molded body (). As a result, a solid electrolyte body () including the porous body () as a support and the dense body () of a thin membrane-shaped electrolyte integrally formed with at least a part of the surface of the porous body (), is produced.

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Masaki Yanagawa