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MoS2 Covered SnS Nanosheets as anode material for lithium ion batteries with high capacity and long cycle life

Abstract

A designed hierarchical nanostructure consisting of SnS nanosheets and ultrathin MoS2 nanosheets were achieved by a facile hydrothermal process with assistant of the fluoride and glucose. In this unique architecture, on one hand, SnS and MoS2 nanosheets can greatly reduce the Li-ion and electrons diffusion distance in over electrode. On the other hand, MoS2 nanosheets and amorphous carbon can not only prevent the direct exposure of SnS to the electrolyte but also maintain the structural stability of the electrode. In addition, the MoS2 nanosheets can offer more active sites for lithium ions hosting, which resulting in higher capacity. In the end, when evaluated as anode material for LIBs, this SnS/MoS2-C composite exhibited a stable cycling performance (989.7 mA h g-1 at 0.2 A g-1 after 60 cycles), superior rate capability (675 mA h g-1 even at 5.0 A g-1) and a long cycle life (718 mA h g-1 at 2.0 A g-1 after 700 cycles). Therefore, this SnS/MoS2-C composite is expected to be a prosing candidate as anode for next generation high-performance LIBs.

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Publication details

The article was received on 21 Sep 2017, accepted on 29 Nov 2017 and first published on 30 Nov 2017


Article type: Paper
DOI: 10.1039/C7TA08346G
Citation: J. Mater. Chem. A, 2017, Accepted Manuscript
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    MoS2 Covered SnS Nanosheets as anode material for lithium ion batteries with high capacity and long cycle life

    Q. pan, F. Zheng, Y. Wu, X. Ou, C. Yang, X. Xiong and M. Liu, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA08346G

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