Abstract
Among all types of solid oxide fuel cells, the microtubular design demonstrated increased resistance to thermal cycling and a high power density (from 300 to 1000 W/kg and higher). Currently, one of the basic problems is the choice of a material to be used as the cathode; other problems are associated with the microstructure just within the cathodic layer of the microtubular solid-oxide fuel cells. This work is aimed at the studying of the power characteristics of microtubular solid-oxide fuel cells using Ba0.5Sr0.5Co0.75Fe0.2Mo0.05O3 – δ as a cathode material. A cathodic layer with a thickness of 65 µm, including 4 cathodic functional layers and 4 cathodic collecting ones, is optimal and allows reaching the power of a single microtubular solid-oxide fuel cell as high as 750–850 mW/cm2.
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This work was supported by the Russian Science Foundation, grant no. 21-79-30051.
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Translated by Yu. Pleskov
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Based on the materials reported at the Second School for Young Scientists “Electrochemical Devices: Processes, Materials, Technologies” (Novosibirsk, October 28–30, 2022).
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Lapushkina, E.Y., Sivtsev, V.P., Kovalev, I.V. et al. Optimization of the BSCFM5-Based Cathode Layer in the Microtubular Solid-Oxide Fuel Cells and the Study of Its Effect on the Power Characteristics. Russ J Electrochem 60, 50–56 (2024). https://doi.org/10.1134/S1023193524010063
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DOI: https://doi.org/10.1134/S1023193524010063