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Arsenene, antimonene and bismuthene as anchoring materials for lithium-sulfur batteries: a computational study
  • Xiaotong Mao,
  • Lin Zhu,
  • Aiping Fu
Xiaotong Mao
Qingdao University

Corresponding Author:[email protected]

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Lin Zhu
Qingdao University
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Aiping Fu
State Key Laboratory of Bio-Fibers and Eco-Textiles
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Finding effective anchoring materials for the immobilization of soluble lithium polysulfides to suppress the shuttling effect has become the key to large-scale application of lithium-sulfur (Li–S) batteries. In this work, the potentials of group-VA two-dimensional (2D) materials including arsenene, antimonene and bismuthene (As, Sb and Bi monolayers) as Li-S battery cathode anchoring materials were systematically investigated by density functional theory (DFT) calculations. The adsorption energies of sulphur (S8) and various lithium polysulfides (Li2Sn, n = 8, 6, 4, 2, 1), as well as the diffusion energy barriers for long-chain Li2S4 and Li2S6 on these three monolayers were studied in detail. The calculated moderate adsorption energies of these monolayers to all polysulfides imply that they can effectively inhibit the shuttling effect. The favorable diffusion barriers for Li2S4 and Li2S6 ensure the efficient diffusion of polysulfides on monolayer surface. In addition, these 2D materials can keep a balance between the binding strength and the structural integrity of polysulfides. The presented merits demonstrate that As, Sb and Bi monolayers can be the promising cathode anchoring materials to improve the performance of Li-S batteries.
22 Dec 2020Submitted to International Journal of Quantum Chemistry
23 Dec 2020Submission Checks Completed
23 Dec 2020Assigned to Editor
31 Dec 2020Reviewer(s) Assigned
18 Jan 2021Review(s) Completed, Editorial Evaluation Pending
18 Jan 2021Editorial Decision: Revise Major
04 Mar 20211st Revision Received
10 Mar 2021Submission Checks Completed
10 Mar 2021Assigned to Editor
10 Mar 2021Reviewer(s) Assigned
10 Mar 2021Review(s) Completed, Editorial Evaluation Pending
10 Mar 2021Editorial Decision: Accept