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Two-dimensional layered transition metal disulphides for effective encapsulation of high-capacity lithium sulphide cathodes

Author

Listed:
  • Zhi Wei Seh

    (Stanford University)

  • Jung Ho Yu

    (Stanford University)

  • Weiyang Li

    (Stanford University)

  • Po-Chun Hsu

    (Stanford University)

  • Haotian Wang

    (Stanford University)

  • Yongming Sun

    (Stanford University)

  • Hongbin Yao

    (Stanford University)

  • Qianfan Zhang

    (School of Materials Science and Engineering, Beihang University)

  • Yi Cui

    (Stanford University
    Stanford Institute for Materials and Energy Science, SLAC National Accelerator Laboratory)

Abstract

Fully lithiated lithium sulphide (Li2S) is currently being explored as a promising cathode material for emerging energy storage applications. Like their sulphur counterparts, Li2S cathodes require effective encapsulation to reduce the dissolution of intermediate lithium polysulphide (Li2Sn, n=4–8) species into the electrolyte. Here we report, the encapsulation of Li2S cathodes using two-dimensional layered transition metal disulphides that possess a combination of high conductivity and strong binding with Li2S/Li2Sn species. In particular, using titanium disulphide as an encapsulation material, we demonstrate a high specific capacity of 503mAhg -1 Li 2 S under high C-rate conditions (4C) as well as high areal capacity of 3.0 mAh cm−2 under high mass-loading conditions ( 5 .3mg Li 2 S cm -2 ). This work opens up the new prospect of using transition metal disulphides instead of conventional carbon-based materials for effective encapsulation of high-capacity electrode materials.

Suggested Citation

  • Zhi Wei Seh & Jung Ho Yu & Weiyang Li & Po-Chun Hsu & Haotian Wang & Yongming Sun & Hongbin Yao & Qianfan Zhang & Yi Cui, 2014. "Two-dimensional layered transition metal disulphides for effective encapsulation of high-capacity lithium sulphide cathodes," Nature Communications, Nature, vol. 5(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms6017
    DOI: 10.1038/ncomms6017
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    Cited by:

    1. Jie Lei & Xiao-Xiang Fan & Ting Liu & Pan Xu & Qing Hou & Ke Li & Ru-Ming Yuan & Ming-Sen Zheng & Quan-Feng Dong & Jia-Jia Chen, 2022. "Single-dispersed polyoxometalate clusters embedded on multilayer graphene as a bifunctional electrocatalyst for efficient Li-S batteries," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Lee, Won Yeol & Jin, En Mei & Cho, Jung Sang & Kang, Dong-Won & Jin, Bo & Jeong, Sang Mun, 2020. "Freestanding flexible multilayered Sulfur–Carbon nanotubes for Lithium–Sulfur battery cathodes," Energy, Elsevier, vol. 212(C).
    3. Yuzhao Liu & Xiangyu Meng & Zhiyu Wang & Jieshan Qiu, 2022. "Development of quasi-solid-state anode-free high-energy lithium sulfide-based batteries," Nature Communications, Nature, vol. 13(1), pages 1-11, December.

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