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Three-dimensional atomic-scale observation of structural evolution of cathode material in a working all-solid-state battery

Author

Listed:
  • Yue Gong

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Yuyang Chen

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Qinghua Zhang

    (Chinese Academy of Sciences)

  • Fanqi Meng

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Jin-An Shi

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Xinyu Liu

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Xiaozhi Liu

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Jienan Zhang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Hao Wang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Jiangyong Wang

    (Shantou University, Shantou)

  • Qian Yu

    (Zhejiang University)

  • Ze Zhang

    (Zhejiang University)

  • Qiang Xu

    (DENSsolutions)

  • Ruijuan Xiao

    (Chinese Academy of Sciences)

  • Yong-Sheng Hu

    (Chinese Academy of Sciences)

  • Lin Gu

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    Collaborative Innovation Center of Quantum Matter)

  • Hong Li

    (Chinese Academy of Sciences)

  • Xuejie Huang

    (Chinese Academy of Sciences)

  • Liquan Chen

    (Chinese Academy of Sciences)

Abstract

Most technologically important electrode materials for lithium-ion batteries are essentially lithium ions plus a transition-metal oxide framework. However, their atomic and electronic structure evolution during electrochemical cycling remains poorly understood. Here we report the in situ observation of the three-dimensional structural evolution of the transition-metal oxide framework in an all-solid-state battery. The in situ studies LiNi0.5Mn1.5O4 from various zone axes reveal the evolution of both atomic and electronic structures during delithiation, which is found due to the migration of oxygen and transition-metal ions. Ordered to disordered structural transition proceeds along the , , directions and inhomogeneous structural evolution along the direction. Uneven extraction of lithium ions leads to localized migration of transition-metal ions and formation of antiphase boundaries. Dislocations facilitate transition-metal ions migration as well. Theoretical calculations suggest that doping of lower valence-state cations effectively stabilize the structure during delithiation and inhibit the formation of boundaries.

Suggested Citation

  • Yue Gong & Yuyang Chen & Qinghua Zhang & Fanqi Meng & Jin-An Shi & Xinyu Liu & Xiaozhi Liu & Jienan Zhang & Hao Wang & Jiangyong Wang & Qian Yu & Ze Zhang & Qiang Xu & Ruijuan Xiao & Yong-Sheng Hu & L, 2018. "Three-dimensional atomic-scale observation of structural evolution of cathode material in a working all-solid-state battery," Nature Communications, Nature, vol. 9(1), pages 1-8, December.
  • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-05833-x
    DOI: 10.1038/s41467-018-05833-x
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    Cited by:

    1. Chuanlai Liu & Franz Roters & Dierk Raabe, 2024. "Role of grain-level chemo-mechanics in composite cathode degradation of solid-state lithium batteries," Nature Communications, Nature, vol. 15(1), pages 1-18, December.

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