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Layered Solid-Electrolyte Membranes Based on Zirconia: Production Technology

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Abstract

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.

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Funding

This study was financially supported by the Russian Scientific Foundation (grant no. 17-79-30071 “Development of scientifically sound ways of optimization of the power and weight and size characteristics of SOFC batteries of planar design and creation of a fuel processor for highly efficient transport and stationary power plants.”)

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Authors and Affiliations

  1. NEVZ-CERAMICS, 630049, Novosibirsk, Russia

    O. Yu. Zadorozhnaya & Yu. K. Napochatov

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

    E. A. Agarkova

  3. Tomsk Polytechnic University, 634050, Tomsk, Russia

    O. V. Tiunova

Authors
  1. O. Yu. Zadorozhnaya
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  2. E. A. Agarkova
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  3. O. V. Tiunova
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  4. Yu. K. Napochatov
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Corresponding author

Correspondence to O. Yu. Zadorozhnaya.

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The authors declare that they have no conflict of interest.

Additional information

Translated by L. Smolina

Published on the basis of materials of the 5th All-Russia Conference “Fuel Cells and Power Plants Based on Them” (with international participation), Suzdal, 2018.

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Zadorozhnaya, O.Y., Agarkova, E.A., Tiunova, O.V. et al. Layered Solid-Electrolyte Membranes Based on Zirconia: Production Technology. Russ J Electrochem 56, 124–131 (2020). https://doi.org/10.1134/S1023193520020123

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  • DOI: https://doi.org/10.1134/S1023193520020123

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