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author:

Cai, Daoping (Cai, Daoping.) [1] (Scholars:蔡道平) | Zhuang, Yaxuan (Zhuang, Yaxuan.) [2] | Fei, Ban (Fei, Ban.) [3] | Zhang, Chaoqi (Zhang, Chaoqi.) [4] | Wang, Yaguang (Wang, Yaguang.) [5] | Chen, Qidi (Chen, Qidi.) [6] (Scholars:陈奇俤) | Zhan, Hongbing (Zhan, Hongbing.) [7] (Scholars:詹红兵)

Indexed by:

EI SCIE

Abstract:

Rational design and synthesis of advanced sulfur host materials has been regarded as an effective strategy to address the critical challenges of lithium-sulfur (Li-S) batteries including shuttle effect of lithium polysulfides (LiPSs), sluggish reaction kinetics, and huge volume change of sulfur. In this work, we demonstrate the rational construction of a multifunctional sulfur host grown on carbon cloth consisting of self-supported porous VN arrays coupled with MOF-derived N-doped carbon nanotubes embedded with tiny Co nanoparticles (named CC/VN/ Co@NCNTs). This unique electrode design possesses a series of advantages such as high electrical conductivity, strong physical/chemical confinement of LiPSs, favorable catalytic activity, fast reaction kinetics, effective volumetric accommodation, good mechanical stability and high sulfur loading. As expected, when evaluated as self-standing and binder-free cathode for Li-S batteries, the CC/VN/Co@NCNTs/S exhibits a high initial discharge capacity of 1130.4 mAh g(-1) at 0.1C and maintains 864.1 mAh g(-1) after 100 cycles, along with outstanding rate performance (625.3 mAh g(-1) at 5C) and superior long-term cycling stability with a low capacity decay rate of 0.063% per cycle at 1C for 500 cycles. Moreover, the CC/VN/Co@NCNTs/S delivers high reversible capacities of 847.6, 668.3, and 581.1 mAh g(-1) at 0.1C after 100 cycles at different high sulfur loadings of 2.8, 5.2, and 7.8 mg cm(-2), respectively. The present work might provide an effective strategy to directly construct multifunctional sulfur host materials on current collectors for high-performance Li-S batteries.

Keyword:

Flexible Lithium-sulfur batteries Multifunctional Sulfur hosts Transition metal nitrides

Community:

  • [ 1 ] [Cai, Daoping]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 2 ] [Zhuang, Yaxuan]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 3 ] [Fei, Ban]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 4 ] [Wang, Yaguang]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 5 ] [Chen, Qidi]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 6 ] [Zhan, Hongbing]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 7 ] [Zhang, Chaoqi]Catalonia Inst Energy Res IREC, Barcelona 08930, Spain
  • [ 8 ] [Zhang, Chaoqi]Univ Barcelona, Dept Elect & Biomed Engn, Barcelona 08028, Spain

Reprint 's Address:

  • 蔡道平 詹红兵

    [Cai, Daoping]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China;;[Zhan, Hongbing]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China

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Source :

CHEMICAL ENGINEERING JOURNAL

ISSN: 1385-8947

Year: 2022

Volume: 430

1 5 . 1

JCR@2022

1 3 . 4 0 0

JCR@2023

ESI Discipline: ENGINEERING;

ESI HC Threshold:66

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 44

SCOPUS Cited Count: 45

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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