Journal of Inorganic Materials ›› 2015, Vol. 30 ›› Issue (12): 1339-1344.DOI: 10.15541/jim20150345

• Orginal Article • Previous Articles    

VS2 Nanosheets: A Potential Anode Materiral for Li-ion Batteriers

LIU Jian-Zhe1, 2, GUO Peng-Fei1   

  1. (1. Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, School of Physics and Electronic Science, and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan 410082, China; 2. Zhejiang Dongjing Bright Opto Co., Ltd, Jinhua, Zhejiang 321017, China)
  • Received:2015-07-22 Published:2015-10-10 Online:2015-11-24
  • Supported by:
    Foundation item: Hunan Provincial Innovation Foundation for Postgraduate (CX2014B127)

Abstract:

The flower-like VS2 nanosheets were synthesized by a one-step solvothermal method. The X-ray diffraction, Raman, SEM, and TEM studies showed the growth mechanism of VS2 flowers in detail. These experimental results indicate that the reaction temperature and time have the direct effect on the formation of VS2 nanosheets. As anode material for Li-ion batteries, the VS2 nanosheets exhibit an initial discharge and charge capacity are 195.4 and 90.6 mAh/g at current density of 200 mA/g. High Coulombic efficiency over 98% and improved rate capacity are achieved for the VS2 nanosheets. All results suggest that the VS2 nanosheets can be utilized as a promising anode material for Li-ion batteries with high power density and fast charge/discharge rates.

Key words: VS2, nanosheets, Li- ions batteries, anode materials

CLC Number: