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Optimization of Technology for Synthesis of Li4Ti5O12 Anode Materials for Lithium-Ion Batteries

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Abstract

A technique was developed for the synthesis of single-phase lithium titanate of composition Li4Ti5O12 with tetraethoxytitanium as a precursor and citric acid as a complexing agent. The processes occurring during the solution and solid-phase synthesis of Li4Ti5O12 were investigated by the methods of X-ray phase analysis, differential scanning calorimetry, and scanning electron microscopy. The phase composition of the products formed at different temperatures was determined depending on the synthesis technique. It was found that the phase formation of lithium titanate is accompanied by the formation of an intermediate phase Li2TiO3 enriched in lithium.

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ACKNOWLEDGMENTS

The characterization of materials was carried out at the Shared Access Centre “Composition of Compounds” of the Institute of High Temperature Electrochemistry of the Ural Branch of the RAS.

Funding

The work was carried out within the framework of the budget plan of the Institute of High-Temperature Electrochemistry of the Ural Branch of the Russian Academy of Sciences on the topic AAAA-A19-119020190042-7.

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Authors and Affiliations

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

    S. V. Pershina, B. D. Antonov & A. S. Farlenkov

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  1. S. V. Pershina
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  2. B. D. Antonov
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  3. A. S. Farlenkov
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Correspondence to S. V. Pershina.

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Additional information

Translated from Zhurnal Prikladnoi Khimii, No. 1, pp. 34–41, January, 2021 https://doi.org/10.31857/S0044461821010059

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Pershina, S.V., Antonov, B.D. & Farlenkov, A.S. Optimization of Technology for Synthesis of Li4Ti5O12 Anode Materials for Lithium-Ion Batteries. Russ J Appl Chem 94, 30–37 (2021). https://doi.org/10.1134/S1070427221010055

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  • DOI: https://doi.org/10.1134/S1070427221010055

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