VO2 nano-sheet negative electrodes for lithium-ion batteries

被引:43
作者
Luebke, Mechthild [1 ,2 ]
Ding, Ning [2 ]
Powell, Michael J. [1 ]
Brett, Dan J. L. [3 ]
Shearing, Paul R. [3 ]
Liu, Zhaolin [2 ]
Darr, Jawwad A. [1 ]
机构
[1] UCL, Dept Chem, 20 Gordon St, London WC1H 0AJ, England
[2] ASTAR, Inst Mat Res & Engn IMRE, 2 Fusionopolis Way,Innovis 08-03, Singapore 138634, Singapore
[3] UCL, Dept Chem Engn, Electrochem Innovat Lab, Torrington Pl, London WC1E 7JE, England
基金
英国工程与自然科学研究理事会;
关键词
Continuous hydrothermal flow synthesis; Lithium ion battery; Vanadium oxide; Anode; High power; Pseudocapacitance; ELECTROCHEMICAL ENERGY-STORAGE; HYDROTHERMAL SYNTHESIS; HIGH-PERFORMANCE; HIGH-CAPACITY; ANODE MATERIAL; NANOWIRES; GRAPHENE; CATHODES; HYBRID; TIO2;
D O I
10.1016/j.elecom.2016.01.013
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Vanadium dioxide (VO2) nano-sheets were directly synthesized via a continuous hydrothermal process and were investigated as electrodes in a wide potential range of 0.05-3 V vs. Li/Li+. The nano-sheets showed excellent capacity retention, with a specific capacity of 350 mAh g(-1) at an applied current of 0.1 A g(-1) and 95 mAh g(-1) at 10 A g(-1). Further electrochemical testing suggested that a significant proportion of the charge storage in the cells was due to pseudocapacitive processes. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:56 / 60
页数:5
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