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Seaweed-Liked WS2/rGO Enabling Ultralong Cycling Life and Enhanced Rate Capability for Lithium-Ion Batteries

1
College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, China
2
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
*
Authors to whom correspondence should be addressed.
Nanomaterials 2019, 9(3), 469; https://doi.org/10.3390/nano9030469
Received: 15 February 2019 / Revised: 10 March 2019 / Accepted: 15 March 2019 / Published: 20 March 2019
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Abstract

WS2 is considered as a potential anode material for lithium ion batteries (LIBs) with superior theoretical capacity and stable structure with two-dimensional which facilitates to the transportation and storage of lithium ion. Nevertheless, the commercial recognition of WS2 has been impeded by the intrinsic properties of WS2, including poor electrical conductivity and large volume expansion. Herein, a seaweed-liked WS2/reduced graphene oxide (rGO) composites has been fabricated through a procedure involving the self-assembling of WO42−, hexadecyl trimethyl ammonium ion with graphene oxide (GO) and the subsequent thermal treatment. The WS2/rGO nanocomposite exhibited the outstanding electrochemical property with a stable and remarkable capacity (507.7 mAh·g−1) at 1.0 A·g−1 even after 1000 cycles. This advanced electrochemical property is due to its seaweed-liked feature which can bring in plentiful active sites, ameliorate the stresses arisen from volume variations and increase charge transfer rate. View Full-Text
Keywords: WS2/rGO composites; seaweed-liked structure; anode; ultralong cycling life; Lithium ion batteries WS2/rGO composites; seaweed-liked structure; anode; ultralong cycling life; Lithium ion batteries
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Huang, Y.; Jiang, Y.; Ma, Z.; Zhang, Y.; Zheng, X.; Yan, X.; Deng, X.; Xiao, W.; Tang, H. Seaweed-Liked WS2/rGO Enabling Ultralong Cycling Life and Enhanced Rate Capability for Lithium-Ion Batteries. Nanomaterials 2019, 9, 469.

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