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Metal chloride perovskite thin film based interfacial layer for shielding lithium metal from liquid electrolyte

Author

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  • Yi-Chen Yin

    (Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China
    University of Science and Technology of China)

  • Qian Wang

    (University of Science and Technology of China)

  • Jing-Tian Yang

    (University of Science and Technology of China)

  • Feng Li

    (Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China)

  • Guozhen Zhang

    (Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China
    University of Science and Technology of China)

  • Chen-Hui Jiang

    (University of Science and Technology of China)

  • Hong-Sheng Mo

    (University of Science and Technology of China)

  • Ji-Song Yao

    (University of Science and Technology of China)

  • Kun-Hua Wang

    (University of Science and Technology of China)

  • Fei Zhou

    (Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China)

  • Huan-Xin Ju

    (PHI China Analytical Laboratory, CoreTech Integrated Limited)

  • Hong-Bin Yao

    (Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China
    University of Science and Technology of China)

Abstract

Fabricating a robust interfacial layer on the lithium metal anode to isolate it from liquid electrolyte is vital to restrain the rapid degradation of a lithium metal battery. Here, we report that the solution-processed metal chloride perovskite thin film can be coated onto the lithium metal surface as a robust interfacial layer to shield the lithium metal from liquid electrolyte. Via phase analysis and density functional theory calculations, we demonstrate that the perovskite layer can allow fast lithium ion shuttle under a low energy barrier of 0.45 eV without the collapse of framework. Such perovskite modification can realize stable cycling of LiCoO2|Li cells with an areal capacity of 2.8 mAh cm−2 using thin lithium metal foil (50 μm) and limited electrolyte (20 μl mAh−1) for over 100 cycles at 0.5 C. The metal chloride perovskite protection strategy could open a promising avenue for advanced lithium metal batteries.

Suggested Citation

  • Yi-Chen Yin & Qian Wang & Jing-Tian Yang & Feng Li & Guozhen Zhang & Chen-Hui Jiang & Hong-Sheng Mo & Ji-Song Yao & Kun-Hua Wang & Fei Zhou & Huan-Xin Ju & Hong-Bin Yao, 2020. "Metal chloride perovskite thin film based interfacial layer for shielding lithium metal from liquid electrolyte," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-15643-9
    DOI: 10.1038/s41467-020-15643-9
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