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author:

Yang, Wenjuan (Yang, Wenjuan.) [1] | Luo, Ningjing (Luo, Ningjing.) [2] | Zheng, Cheng (Zheng, Cheng.) [3] | Huang, Shuping (Huang, Shuping.) [4] | Wei, Mingdeng (Wei, Mingdeng.) [5]

Indexed by:

EI

Abstract:

In the present work, a hierarchical composite of rose-like VS2@S/N-doped carbon (VS2@SNC) with expanded (001) planes is successfully fabricated through a facile synthetic route. Notably, the d-spacing of (001) planes is expanded to 0.92 nm, which is proved to dramatically reduce the energy barrier for Li+ diffusion in the composite of VS2@SNC by density functional theory calculation. On the other hand, the S/N-doped carbon in the composite greatly promotes the electrical conductivity and enhances the structural stability. In addition, the hierarchical structure of VS2@SNC facilitates rapid electrolyte diffusion and increases the contact area between the electrode and electrolyte simultaneously. Benefiting from the merits mentioned above, the VS2@SNC electrode exhibits excellent electrochemical properties, such as a large reversible capacity of 971.6 mA h g−1 at 0.2 A g−1, an extremely high rate capability of 772.1 mA h g−1 at 10 A g−1, and a remarkable cycling stability up to 600 cycles at 8 A g−1 with a capacity of 684.5 mA h g−1, making it a promising candidate as an anode material for lithium-ion batteries. © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keyword:

Anodes Density functional theory Electrochemical electrodes Electrochemical properties Electrolytes Ions Lithium-ion batteries Stability Sulfur compounds Superconducting materials Vanadium compounds

Community:

  • [ 1 ] [Yang, Wenjuan]Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, Fuzhou; Fujian; 350002, China
  • [ 2 ] [Luo, Ningjing]Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, Fuzhou; Fujian; 350002, China
  • [ 3 ] [Zheng, Cheng]Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, Fuzhou; Fujian; 350002, China
  • [ 4 ] [Huang, Shuping]Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, Fuzhou; Fujian; 350002, China
  • [ 5 ] [Wei, Mingdeng]Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, Fuzhou; Fujian; 350002, China
  • [ 6 ] [Wei, Mingdeng]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou; Fujian; 350002, China
  • [ 7 ] [Wei, Mingdeng]Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou; 213164, China

Reprint 's Address:

  • [huang, shuping]fujian provincial key laboratory of electrochemical energy storage materials, fuzhou university, fuzhou; fujian; 350002, china

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Source :

Small

ISSN: 1613-6810

Year: 2019

Issue: 51

Volume: 15

1 1 . 4 5 9

JCR@2019

1 3 . 0 0 0

JCR@2023

ESI HC Threshold:236

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 72

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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