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author:

Yang, Wenjuan (Yang, Wenjuan.) [1] | Luo, Ningjing (Luo, Ningjing.) [2] | Zheng, Cheng (Zheng, Cheng.) [3] (Scholars:郑琤) | Huang, Shuping (Huang, Shuping.) [4] (Scholars:黄淑萍) | Wei, Mingdeng (Wei, Mingdeng.) [5] (Scholars:魏明灯)

Indexed by:

EI Scopus SCIE

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.

Keyword:

electrochemical properties expanded (001) planes Li-ion batteries N-doped carbon S vanadium disulfide

Community:

  • [ 1 ] [Yang, Wenjuan]Fuzhou Univ, Fujian Prov Key Lab Electrochem Energy Storage Ma, Fuzhou 350002, Fujian, Peoples R China
  • [ 2 ] [Luo, Ningjing]Fuzhou Univ, Fujian Prov Key Lab Electrochem Energy Storage Ma, Fuzhou 350002, Fujian, Peoples R China
  • [ 3 ] [Zheng, Cheng]Fuzhou Univ, Fujian Prov Key Lab Electrochem Energy Storage Ma, Fuzhou 350002, Fujian, Peoples R China
  • [ 4 ] [Huang, Shuping]Fuzhou Univ, Fujian Prov Key Lab Electrochem Energy Storage Ma, Fuzhou 350002, Fujian, Peoples R China
  • [ 5 ] [Wei, Mingdeng]Fuzhou Univ, Fujian Prov Key Lab Electrochem Energy Storage Ma, Fuzhou 350002, Fujian, Peoples R China
  • [ 6 ] [Wei, Mingdeng]Fuzhou Univ, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Fujian, Peoples R China
  • [ 7 ] [Wei, Mingdeng]Changzhou Univ, Jiangsu Collaborat Innovat Ctr Photovolta Sci & E, Changzhou 213164, Peoples R China

Reprint 's Address:

  • 黄淑萍 魏明灯

    [Huang, Shuping]Fuzhou Univ, Fujian Prov Key Lab Electrochem Energy Storage Ma, Fuzhou 350002, Fujian, Peoples R China;;[Wei, Mingdeng]Fuzhou Univ, Fujian Prov Key Lab Electrochem Energy Storage Ma, Fuzhou 350002, Fujian, Peoples R China;;[Wei, Mingdeng]Fuzhou Univ, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Fujian, Peoples R China;;[Wei, Mingdeng]Changzhou Univ, Jiangsu Collaborat Innovat Ctr Photovolta Sci & E, Changzhou 213164, Peoples R 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 Discipline: MATERIALS SCIENCE;

ESI HC Threshold:236

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 72

SCOPUS Cited Count: 65

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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