Quantum-chemical modeling of lithiation–delithiation of infinite fibers [SinCm]k (k = ∞) for n = 12–16 and m = 8–19 and small silicon clusters
- Authors: Zyubina T.S.1, Zyubin A.S.1, Dobrovol’skii Y.A.1, Volokhov V.M.1
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Affiliations:
- Institute of Problems of Chemical Physics
- Issue: Vol 61, No 13 (2016)
- Pages: 1677-1687
- Section: Article
- URL: https://journal-vniispk.ru/0036-0236/article/view/167010
- DOI: https://doi.org/10.1134/S0036023616130040
- ID: 167010
Cite item
Abstract
In the framework of the search for promising anode materials for lithium-ion batteries and with the aim of studying the behavior of silicon–carbon composites during cycling, quantum-chemical modeling of the structure, stability, and electronic properties of silicon-coated carbon fibers has been performed. Calculations of loose infinite nanofibers [SinCm]k (k = ∞) for n = 12–16 and m = 8–19 have been performed by the density functional theory method with inclusion of gradient correction and periodic boundary conditions. It has been demonstrated that infinite nanofibers SinCm have a large number of voids, promising for the accumulation of lithium without noticeable changes in lattice parameters, and a near-zero gap. The lithiation–delithiation of the Si21 cluster and infinite nanofibers [Si16C19] for Li: Si = 1: 1, 2: 1, 3: 1, and 4: 1 has been modeled.
About the authors
T. S. Zyubina
Institute of Problems of Chemical Physics
Email: zyubin@icp.ac.ru
Russian Federation, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432
A. S. Zyubin
Institute of Problems of Chemical Physics
Author for correspondence.
Email: zyubin@icp.ac.ru
Russian Federation, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432
Yu. A. Dobrovol’skii
Institute of Problems of Chemical Physics
Email: zyubin@icp.ac.ru
Russian Federation, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432
V. M. Volokhov
Institute of Problems of Chemical Physics
Email: zyubin@icp.ac.ru
Russian Federation, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432
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