Layered Solid-Electrolyte Membranes Based on Zirconia: Production Technology

O. Yu. Zadorozhnaya O. Yu. Zadorozhnaya , E. A. Agarkova E. A. Agarkova , O. V. Tiunova O. V. Tiunova , Yu. K. Napochatov Yu. K. Napochatov
Российский электрохимический журнал
Abstract / Full Text

A solid electrolyte membrane is a key part of a solid oxide fuel cell (SOFC). This paper presents the results of our study of the effects of particle size of the starting powders, composition of organic additives in suspension, and process parameters on the quality of three-layer ceramic sheets of solid electrolyte with dimensions of 100 × 100 mm and a thickness of 0.15 mm, made by casting on a moving tape. The inner layer was 10Sc1YSZ (10 mol % Sc2O3, 1 mol % Y2O3, 89 mol % ZrO2)—a material with the highest oxygen ion conductivity among zirconia-based solid solutions. 6ScSZ was chosen for the outer layers (6 mol % Sc2O3, 94 mol % ZrO2). The three-layer architecture of the solid electrolyte membranes allows the improvement of the mechanical characteristics while maintaining the required functional properties (primarily, anion conductivity). This study is devoted to optimization of the production technology of these layered membranes by tape casting.

Author information
  • NEVZ-CERAMICS, 630049, Novosibirsk, Russia

    O. Yu. Zadorozhnaya & Yu. K. Napochatov

  • Moscow Institute of Physics and Technology (National Research University), 117303, Dolgoprudnyi, Moscow oblast, Russia

    E. A. Agarkova

  • Tomsk Polytechnic University, 634050, Tomsk, Russia

    O. V. Tiunova

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