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Engineering Na+-layer spacings to stabilize Mn-based layered cathodes for sodium-ion batteries

Author

Listed:
  • Wenhua Zuo

    (Xiamen University)

  • Xiangsi Liu

    (Xiamen University)

  • Jimin Qiu

    (Peking University Shenzhen Graduate School)

  • Dexin Zhang

    (Xiamen University)

  • Zhumei Xiao

    (Xiamen University)

  • Jisheng Xie

    (Xiamen University)

  • Fucheng Ren

    (Xiamen University)

  • Jinming Wang

    (Xiamen University)

  • Yixiao Li

    (Xiamen University)

  • Gregorio F. Ortiz

    (University of Córdoba)

  • Wen Wen

    (Chinese Academy of Sciences)

  • Shunqing Wu

    (Xiamen University)

  • Ming-Sheng Wang

    (Xiamen University)

  • Riqiang Fu

    (National High Magnetic Field Laboratory)

  • Yong Yang

    (Xiamen University
    Xiamen University)

Abstract

Layered transition metal oxides are the most important cathode materials for Li/Na/K ion batteries. Suppressing undesirable phase transformations during charge-discharge processes is a critical and fundamental challenge towards the rational design of high-performance layered oxide cathodes. Here we report a shale-like NaxMnO2 (S-NMO) electrode that is derived from a simple but effective water-mediated strategy. This strategy expands the Na+ layer spacings of P2-type Na0.67MnO2 and transforms the particles into accordion-like morphology. Therefore, the S-NMO electrode exhibits improved Na+ mobility and near-zero-strain property during charge-discharge processes, which leads to outstanding rate capability (100 mAh g−1 at the operation time of 6 min) and cycling stability (>3000 cycles). In addition, the water-mediated strategy is feasible to other layered sodium oxides and the obtained S-NMO electrode has an excellent tolerance to humidity. This work demonstrates that engineering the spacings of alkali-metal layer is an effective strategy to stabilize the structure of layered transition metal oxides.

Suggested Citation

  • Wenhua Zuo & Xiangsi Liu & Jimin Qiu & Dexin Zhang & Zhumei Xiao & Jisheng Xie & Fucheng Ren & Jinming Wang & Yixiao Li & Gregorio F. Ortiz & Wen Wen & Shunqing Wu & Ming-Sheng Wang & Riqiang Fu & Yon, 2021. "Engineering Na+-layer spacings to stabilize Mn-based layered cathodes for sodium-ion batteries," Nature Communications, Nature, vol. 12(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-25074-9
    DOI: 10.1038/s41467-021-25074-9
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    Cited by:

    1. Fang Fu & Xiang Liu & Xiaoguang Fu & Hongwei Chen & Ling Huang & Jingjing Fan & Jiabo Le & Qiuxiang Wang & Weihua Yang & Yang Ren & Khalil Amine & Shi-Gang Sun & Gui-Liang Xu, 2022. "Entropy and crystal-facet modulation of P2-type layered cathodes for long-lasting sodium-based batteries," Nature Communications, Nature, vol. 13(1), pages 1-12, December.

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