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Computer Modeling of Lithium Intercalation and Deintercalation in a Silicene Channel

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Abstract—

The sequential intercalation/deintercalation of Li+ in a silicene channel was studied by molecular dynamics. The maximum density of 0.063 Li atoms per 1 Si atom in the channel was achieved when the slit volume increased by 24%. A flat 13-atomic lithium cluster was found to form at an early stage of intercalation, which was destroyed further during the process. The character of the motion of the Li+ ion during the cycling was analyzed. The self-diffusion coefficients of lithium atoms in both processes were determined. The number of Li atoms leaving the channel and their residence time in the channel after the appearance of the next ion during deintercalation in the system was determined.

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ACKNOWLEDGMENTS

This study was financially supported by the Russian Science Foundation (project no. 16-13-00061).

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Authors and Affiliations

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

    A. E. Galashev & K. A. Ivanichkina

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  1. A. E. Galashev
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  2. K. A. Ivanichkina
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Correspondence to A. E. Galashev.

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Translated by L. Smolina

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Galashev, A.E., Ivanichkina, K.A. Computer Modeling of Lithium Intercalation and Deintercalation in a Silicene Channel. Russ. J. Phys. Chem. 93, 765–769 (2019). https://doi.org/10.1134/S0036024419040137

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  • DOI: https://doi.org/10.1134/S0036024419040137

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