Electrochemical Properties of Solid Solutions
in the Li₈Zr_1-xCe_xO₆ System

M. I. Pantyukhina^z, M. S. Shchelkanova, and S. V. Plaksin

Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia

Received September 6, 2011

Abstract—Li₈Zr_1–xCe_xO₆ solid solutions based on lithium zirconate Li₈ZrO₆ were obtained by solid-state
synthesis in an inert atmosphere. Their transport properties (the electron component of the total conductivity,
the temperature and concentration dependences of conductivity, and the activation energies) were studied by
impedance spectroscopy. The practical stability of the ceramic samples of Li₈Zr_1–xCe_xO₆ solid solutions (x =
0–0.07) at 473–573 K against melted lithium was studied.

Keywords: lithium-conducting solid electrolytes, LSE, stability against metallic lithium, electric conductivity,
lithium zirconate, solid solution, doping

DOI: 10.1134/S1023193513020146

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