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Flower-like SnS2 composite with 3D pyrolyzed bacterial cellulose as the anode for lithium-ion batteries with ultralong cycle life and superior rate capability

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Abstract

The enormous volume expansion during cycling and poor electron conductivity of SnS2 limit its cycling stability and high rate capability. Herein, flower-like SnS2 anchored on 3D carbon nanofiber structures were designed and synthesized by a simple hydrothermal method. Pyrolyzed bacterial cellulose as 3D carbon nanofibers can not only offer a continuous pathway of Li+ and electrons, but can also migrate the serious volume change of SnS2 during charging and discharging. The obtained composite shows a specific capacity of 408.8 mA h gāˆ’1 even after 1500 cycles at 10 A gāˆ’1, and almost no specific capacity decay after 20 cycles with a retention of 97.5%.

Graphical abstract: Flower-like SnS2 composite with 3D pyrolyzed bacterial cellulose as the anode for lithium-ion batteries with ultralong cycle life and superior rate capability

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Publication details

The article was received on 22 Sep 2018, accepted on 26 Nov 2018 and first published on 27 Nov 2018


Article type: Communication
DOI: 10.1039/C8DT03834A
Citation: Dalton Trans., 2018, Advance Article
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    Flower-like SnS2 composite with 3D pyrolyzed bacterial cellulose as the anode for lithium-ion batteries with ultralong cycle life and superior rate capability

    X. Liu, S. Li, J. Zai, Y. Jin, P. Zhan, Y. Huang, X. Tie, R. Qi and X. Qian, Dalton Trans., 2018, Advance Article , DOI: 10.1039/C8DT03834A

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