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Electrochemical Characteristics of Fuel Cells with CaZr0.9Y0.1O3 – δ Electrolyte Film Supported by Nickel–Cermet Anode

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Abstract

Electrochemical characteristics of fuel cells containing CaZr0.9Y0.1O3 – δ film supported by Ni–CaZr0.95Sc0.05O3 – δ anode are studied. It is shown that the diffusion of nickel from the electrode-support favors the increase in electronic conductivity of the electrolyte. It is found that to provide sufficiently high transport numbers of ions, the thickness of the CZY electrolyte film should not be smaller than 4 µm. The polarization losses on the anode are concluded to be the main reason for the lower power of fuel cells with thin-film electrolyte.

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ACKNOWLEDGMENTS

This study was carried out with the use of instruments of the Center of Collective Use “Composition of Substances” of the Institute of High-Temperature Electrochemistry of the Ural Branch of the Russian Academy of Sciences. We are grateful to A.A. Terekhin for measuring gas–tightness of samples.

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Authors and Affiliations

  1. Institute of High Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, 620137, Yekaterinburg, Russia

    V. M. Kuimov, A. Sh. Khaliullina, A. A. Pankratov, B. D. Antonov & L. A. Dunyushkina

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  1. V. M. Kuimov
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  2. A. Sh. Khaliullina
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  3. A. A. Pankratov
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  4. B. D. Antonov
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  5. L. A. Dunyushkina
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Correspondence to V. M. Kuimov.

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Translated by T. Safonova

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Kuimov, V.M., Khaliullina, A.S., Pankratov, A.A. et al. Electrochemical Characteristics of Fuel Cells with CaZr0.9Y0.1O3 – δ Electrolyte Film Supported by Nickel–Cermet Anode. Russ J Electrochem 55, 672–679 (2019). https://doi.org/10.1134/S1023193519070061

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  • DOI: https://doi.org/10.1134/S1023193519070061

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