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Alkaline earth metal vanadates as sodium-ion battery anodes

Author

Listed:
  • Xiaoming Xu

    (Wuhan University of Technology)

  • Chaojiang Niu

    (Wuhan University of Technology)

  • Manyi Duan

    (Sichuan Normal University)

  • Xuanpeng Wang

    (Wuhan University of Technology)

  • Lei Huang

    (Wuhan University of Technology)

  • Junhui Wang

    (Wuhan University of Technology)

  • Liting Pu

    (Wuhan University of Technology)

  • Wenhao Ren

    (Wuhan University of Technology)

  • Changwei Shi

    (Wuhan University of Technology)

  • Jiasheng Meng

    (Wuhan University of Technology)

  • Bo Song

    (School of Optical-Electrical Computer Engineering, University of Shanghai for Science and Technology)

  • Liqiang Mai

    (Wuhan University of Technology)

Abstract

The abundance of sodium resources indicates the potential of sodium-ion batteries as emerging energy storage devices. However, the practical application of sodium-ion batteries is hindered by the limited electrochemical performance of electrode materials, especially at the anode side. Here, we identify alkaline earth metal vanadates as promising anodes for sodium-ion batteries. The prepared calcium vanadate nanowires possess intrinsically high electronic conductivity (> 100 S cm−1), small volume change ( 300 mAh g−1), with an average voltage of ∼1.0 V. The specific sodium-storage mechanism, beyond the conventional intercalation or conversion reaction, is demonstrated through in situ and ex situ characterizations and theoretical calculations. This work explores alkaline earth metal vanadates for sodium-ion battery anodes and may open a direction for energy storage.

Suggested Citation

  • Xiaoming Xu & Chaojiang Niu & Manyi Duan & Xuanpeng Wang & Lei Huang & Junhui Wang & Liting Pu & Wenhao Ren & Changwei Shi & Jiasheng Meng & Bo Song & Liqiang Mai, 2017. "Alkaline earth metal vanadates as sodium-ion battery anodes," Nature Communications, Nature, vol. 8(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-00211-5
    DOI: 10.1038/s41467-017-00211-5
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