Journal
JOURNAL OF POWER SOURCES
Volume 350, Issue -, Pages 87-93Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2017.03.070
Keywords
Lithium-ion battery; Effective synergy; TiO2-B; VS2; Nanowire arrays
Funding
- National Basic Research Program of China [2014CB643506, 2013CB922104]
- Natural Science Foundation of Hubei Province [ZRZ2015000203]
- Technology Creative Project of Excellent Middle & Young Team of Hubei Province [T201511]
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Heterogeneous nanostructured materials are currently studied as promising electrode materials for lithium-ion batteries (LIBs) due to effective synergy. Herein, we report on TiO2-B@VS2 heterogeneous nanowire arrays (TVNAs) as additives-free anodes for LIBs. The VS2 is a two-dimensional (2D) material with intrinsically metallic nature. Importantly, this layered 2D material offers a large interlayer spacing for facile intercalation of lithium-ions and possesses a high theoretical capacity. The TVNAs electrode shows a reversible capacity of 365.4 mA h g(-1) after 500 cycles at a current density of 1 C (335 mA g-1), being significantly superior than the pure TiO2-B nanowire arrays (TNAs) electrode (192.7 mA h g(-1),). Impressively, the TVNAs electrode delivers a high rate capacity of 171.2 mA h g(-1) at 10 C rate. The merits of the TVNAs electrode could be ascribed to the outstanding structural stability of the TNAs and the high capacity and conductivity of VS2.(C) 2017 Published by Elsevier B.V.
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