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Author:

Liu, Shiqi (Liu, Shiqi.) | Zhang, Xu (Zhang, Xu.) | Yan, Pengfei (Yan, Pengfei.) (Scholars:闫鹏飞) | Cheng, Renfei (Cheng, Renfei.) | Tang, Yushu (Tang, Yushu.) | Cui, Min (Cui, Min.) | Wang, Boya (Wang, Boya.) | Zhang, Liqiang (Zhang, Liqiang.) | Wang, Xiaohui (Wang, Xiaohui.) | Jiang, Yuyuan (Jiang, Yuyuan.) | Wang, Lin (Wang, Lin.) | Yu, Haijun (Yu, Haijun.) (Scholars:尉海军)

Indexed by:

EI Scopus SCIE PubMed

Abstract:

The development of silicon-based anode materials is important for improving the energy density of current lithium ion batteries. However, there are still strong demands for these materials with better cycle stability and higher reversible capacity. Here, a kind of dual bond restricted MXene-Si-CNT composite anode materials with enhanced electrochemical performance is reported. These dual bonds have been clearly revealed by an X-ray photoelectron spectroscopy technique and also proven by theoretical calculations with spontaneous reaction energy values (-0.190 and -0.429 eV/atom for Ti-Si and C-Si bonds, respectively). The cycle stability of the composites, prepared by a facile ball-milling synthetic method, can obviously be improved because of the existence of these dual bonds and the multidimensional constructed architecture. The MXene-Si-CNT composite with 60 wt % silicon possesses the best overall performance, with similar to 80% capacity retention after 200 cycles, and achieves 841 mAh g(-1) at 2 A g(-1). This approach demonstrates a promising strategy to exploit high-performance anode materials and lessens the immanent negative effect of silicon-based materials. Furthermore, it is significant to extend this method to other anode materials with serious volumetric change problems during the cycling process.

Keyword:

composite anode binding energy dual bonds MXene-Si-CNT lithium ion batteries

Author Community:

  • [ 1 ] [Liu, Shiqi]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Educ Minist China, Beijing 100124, Peoples R China
  • [ 2 ] [Zhang, Xu]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Educ Minist China, Beijing 100124, Peoples R China
  • [ 3 ] [Cui, Min]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Educ Minist China, Beijing 100124, Peoples R China
  • [ 4 ] [Wang, Boya]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Educ Minist China, Beijing 100124, Peoples R China
  • [ 5 ] [Wang, Lin]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Educ Minist China, Beijing 100124, Peoples R China
  • [ 6 ] [Yu, Haijun]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Educ Minist China, Beijing 100124, Peoples R China
  • [ 7 ] [Yan, Pengfei]Beijing Univ Technol, Inst Microstruct & Properties Adv Mat, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 8 ] [Jiang, Yuyuan]Beijing Univ Technol, Inst Microstruct & Properties Adv Mat, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 9 ] [Cheng, Renfei]Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
  • [ 10 ] [Wang, Xiaohui]Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
  • [ 11 ] [Tang, Yushu]China Univ Petr, Dept Mat Sci & Engn, State Key Lab Heavy Oil Proc, Beijing 102249, Changping, Peoples R China
  • [ 12 ] [Zhang, Liqiang]China Univ Petr, Dept Mat Sci & Engn, State Key Lab Heavy Oil Proc, Beijing 102249, Changping, Peoples R China

Reprint Author's Address:

  • 尉海军

    [Yu, Haijun]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Educ Minist China, Beijing 100124, Peoples R China

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Source :

ACS NANO

ISSN: 1936-0851

Year: 2019

Issue: 8

Volume: 13

Page: 8854-8864

1 7 . 1 0 0

JCR@2022

ESI Discipline: CHEMISTRY;

ESI HC Threshold:166

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count: 91

SCOPUS Cited Count: 93

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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