Mixed ionic conductor

H - Electricity – 01 – B

Patent

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Details

H01B 1/08 (2006.01) C01G 15/00 (2006.01) C01G 23/00 (2006.01) C01G 25/00 (2006.01) G01N 27/409 (2006.01) H01M 8/02 (2006.01) H01M 8/12 (2006.01)

Patent

CA 2516809

A mixed ionic conductor of the present invention includes a perovskite oxide of Ba, Ce, and In. The perovskite oxide is a crystalline compound expressed by Ba(Ce1-x In x)p O3, where x is 0.4 to 0.6 and p is 1 to 1.02. An electrochemical device of the present invention includes the mixed ionic conductor as a solid electrolyte. In the electrochemical device, electrons generated by an oxidation-reduction reaction are drawn in the thickness direction of the solid electrolyte. With this configuration, the present invention can provide a mixed ionic conductor that has high conductivity and high reliability, and an electrochemical device using the mixed ionic conductor.

L'invention concerne un conducteur mixte constitué d'un oxyde du type pérovskite contenant du Ba, Ce et In. Cet oxyde du type pérovskite est un composé cristallin de formule Ba(Ce¿1-x?In¿x?)¿p?O¿3? (dans laquelle x est compris dans la plage allant de 0,4 à 0,6 et p est compris dans la plage allant de 1 à 1,02). L'invention concerne également un dispositif électrochimique comprenant ce conducteur mixte sous forme d'électrolyte solide, ledit dispositif électrochimique présentant une structure telle que les électrons générés par la réaction d'oxydo-réduction sont transportés dans la direction de l'épaisseur de l'électrolyte solide. On obtient ainsi un conducteur mixte présentant une conductivité et une fiabilité élevées ainsi qu'un dispositif électrochimique comprenant ledit conducteur mixte.

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