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Physicochemical Properties of Li6V5O15 as the Cathode Material for Lithium-Ion Batteries

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Abstract

Lithium-vanadium oxide with the formal composition Li6V5O15, uniform microsctructure, and the particle size of 100 nm is synthesized by a solution method. The synthesized compound is characterized by the methods of X-ray diffraction analysis, Raman spectroscopy, and synchronous thermal analysis. The total electric conductivity is measured by the method of impedance spectroscopy and its electronic component is estimated by dc method. In the temperature range of 200–400°C, Li6V5O15 represents a mixed electronic- ionic conductor with predomination of the ionic component and is thermally stable up to 550°С. Preliminary tests of a laboratory model of electrochemical cell Li|LiPF6|Li6V5O15 are carried out.

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Authors and Affiliations

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

    M. S. Shchelkanova, G. Sh. Shekhtman, E. G. Vovkotrub & S. V. Plaksin

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  1. M. S. Shchelkanova
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  2. G. Sh. Shekhtman
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  3. E. G. Vovkotrub
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  4. S. V. Plaksin
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Correspondence to M. S. Shchelkanova.

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Original Russian Text © M.S. Shchelkanova, G.Sh. Shekhtman, E.G. Vovkotrub, S.V. Plaksin, 2018, published in Elektrokhimiya, 2018, Vol. 54, No. 9, pp. 806–812.

Published on the basis of materials of the First International Conference on Intelligent Technologies in Power Engineering, Yekaterinburg, 2017.

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Shchelkanova, M.S., Shekhtman, G.S., Vovkotrub, E.G. et al. Physicochemical Properties of Li6V5O15 as the Cathode Material for Lithium-Ion Batteries. Russ J Electrochem 54, 702–708 (2018). https://doi.org/10.1134/S1023193518090124

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  • DOI: https://doi.org/10.1134/S1023193518090124

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