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Conductive porous vanadium nitride/graphene composite as chemical anchor of polysulfides for lithium-sulfur batteries

Author

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  • Zhenhua Sun

    (Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences)

  • Jingqi Zhang

    (Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences)

  • Lichang Yin

    (Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences)

  • Guangjian Hu

    (Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences)

  • Ruopian Fang

    (Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences)

  • Hui-Ming Cheng

    (Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences
    Tsinghua-Berkeley Shenzhen Institute, Tsinghua University)

  • Feng Li

    (Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences)

Abstract

Although the rechargeable lithium–sulfur battery is an advanced energy storage system, its practical implementation has been impeded by many issues, in particular the shuttle effect causing rapid capacity fade and low Coulombic efficiency. Herein, we report a conductive porous vanadium nitride nanoribbon/graphene composite accommodating the catholyte as the cathode of a lithium–sulfur battery. The vanadium nitride/graphene composite provides strong anchoring for polysulfides and fast polysulfide conversion. The anchoring effect of vanadium nitride is confirmed by experimental and theoretical results. Owing to the high conductivity of vanadium nitride, the composite cathode exhibits lower polarization and faster redox reaction kinetics than a reduced graphene oxide cathode, showing good rate and cycling performances. The initial capacity reaches 1,471 mAh g−1 and the capacity after 100 cycles is 1,252 mAh g−1 at 0.2 C, a loss of only 15%, offering a potential for use in high energy lithium–sulfur batteries.

Suggested Citation

  • Zhenhua Sun & Jingqi Zhang & Lichang Yin & Guangjian Hu & Ruopian Fang & Hui-Ming Cheng & Feng Li, 2017. "Conductive porous vanadium nitride/graphene composite as chemical anchor of polysulfides for lithium-sulfur batteries," Nature Communications, Nature, vol. 8(1), pages 1-8, April.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms14627
    DOI: 10.1038/ncomms14627
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    Cited by:

    1. Tian, Xiaohui & Cheng, Yunnian & Zhou, Yingke & Zhang, Bingyin & Wang, Guiru, 2023. "Long-cycling and high-loading lithium-sulfur battery enabled by free-standing three-dimensional porous NiCo2O4 nanosheets," Applied Energy, Elsevier, vol. 334(C).
    2. Zhang, Ziyu & Ding, Tao & Zhou, Quan & Sun, Yuge & Qu, Ming & Zeng, Ziyu & Ju, Yuntao & Li, Li & Wang, Kang & Chi, Fangde, 2021. "A review of technologies and applications on versatile energy storage systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 148(C).
    3. Byong-June Lee & Chen Zhao & Jeong-Hoon Yu & Tong-Hyun Kang & Hyean-Yeol Park & Joonhee Kang & Yongju Jung & Xiang Liu & Tianyi Li & Wenqian Xu & Xiao-Bing Zuo & Gui-Liang Xu & Khalil Amine & Jong-Sun, 2022. "Development of high-energy non-aqueous lithium-sulfur batteries via redox-active interlayer strategy," Nature Communications, Nature, vol. 13(1), pages 1-11, December.

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