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Enhancing lithium–sulphur battery performance by strongly binding the discharge products on amino-functionalized reduced graphene oxide

Author

Listed:
  • Zhiyu Wang

    (Carbon Research Laboratory, Liaoning Key Lab for Energy Materials and Chemical Engineering, State Key Lab of Fine Chemicals, Dalian University of Technology
    School of Chemical and Biomedical Engineering, Nanyang Technological University)

  • Yanfeng Dong

    (Carbon Research Laboratory, Liaoning Key Lab for Energy Materials and Chemical Engineering, State Key Lab of Fine Chemicals, Dalian University of Technology)

  • Hongjiang Li

    (Carbon Research Laboratory, Liaoning Key Lab for Energy Materials and Chemical Engineering, State Key Lab of Fine Chemicals, Dalian University of Technology)

  • Zongbin Zhao

    (Carbon Research Laboratory, Liaoning Key Lab for Energy Materials and Chemical Engineering, State Key Lab of Fine Chemicals, Dalian University of Technology)

  • Hao Bin Wu

    (School of Chemical and Biomedical Engineering, Nanyang Technological University)

  • Ce Hao

    (Carbon Research Laboratory, Liaoning Key Lab for Energy Materials and Chemical Engineering, State Key Lab of Fine Chemicals, Dalian University of Technology)

  • Shaohong Liu

    (Carbon Research Laboratory, Liaoning Key Lab for Energy Materials and Chemical Engineering, State Key Lab of Fine Chemicals, Dalian University of Technology)

  • Jieshan Qiu

    (Carbon Research Laboratory, Liaoning Key Lab for Energy Materials and Chemical Engineering, State Key Lab of Fine Chemicals, Dalian University of Technology)

  • Xiong Wen (David) Lou

    (School of Chemical and Biomedical Engineering, Nanyang Technological University)

Abstract

Lithium–sulphur batteries are one very appealing power source with high energy density. But their practical use is still hindered by several issues including short lifespan, low efficiency and safety concern from the lithium anode. Polysulphide dissolution and insulating nature of sulphur are generally considered responsible for the capacity degradation. However, the detachment of discharge products, that is, highly polar lithium sulphides, from nonpolar carbon matrix (for example, graphene) has been rarely studied as one critical factor. Here we report the strongly covalent stabilization of sulphur and its discharge products on amino-functionalized reduced graphene oxide that enables stable capacity retention of 80% for 350 cycles with high capacities and excellent high-rate response up to 4 C. The present study demonstrates a feasible and effective strategy to solve the long-term cycling difficulty for lithium–sulphur batteries and also helps to understand the capacity decay mechanism involved.

Suggested Citation

  • Zhiyu Wang & Yanfeng Dong & Hongjiang Li & Zongbin Zhao & Hao Bin Wu & Ce Hao & Shaohong Liu & Jieshan Qiu & Xiong Wen (David) Lou, 2014. "Enhancing lithium–sulphur battery performance by strongly binding the discharge products on amino-functionalized reduced graphene oxide," Nature Communications, Nature, vol. 5(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms6002
    DOI: 10.1038/ncomms6002
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    Cited by:

    1. Marcin Kaczmarzyk & Michał Musiał, 2021. "Parametric Study of a Lunar Base Power Systems," Energies, MDPI, vol. 14(4), pages 1-31, February.
    2. Xie, Yanping & Zhao, Hongbin & Cheng, Hongwei & Hu, Chenji & Fang, Wenying & Fang, Jianhui & Xu, Jiaqiang & Chen, Zhongwei, 2016. "Facile large-scale synthesis of core–shell structured sulfur@polypyrrole composite and its application in lithium–sulfur batteries with high energy density," Applied Energy, Elsevier, vol. 175(C), pages 522-528.

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