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An oxalate cathode for lithium ion batteries with combined cationic and polyanionic redox

Author

Listed:
  • Wenjiao Yao

    (Chinese Academy of Sciences)

  • A. Robert Armstrong

    (University of St Andrews
    ALISTORE-ERI)

  • Xiaolong Zhou

    (Chinese Academy of Sciences)

  • Moulay-Tahar Sougrati

    (ALISTORE-ERI
    Université de Montpellier 2 Place Eugène Bataillon - CC 1502)

  • Pinit Kidkhunthod

    (111 University Avenue, Muang District)

  • Sarayut Tunmee

    (111 University Avenue, Muang District)

  • Chenghua Sun

    (Swinburne University of Technology)

  • Suchinda Sattayaporn

    (111 University Avenue, Muang District)

  • Philip Lightfoot

    (University of St Andrews)

  • Bifa Ji

    (Chinese Academy of Sciences)

  • Chunlei Jiang

    (Chinese Academy of Sciences)

  • Nanzhong Wu

    (Chinese Academy of Sciences)

  • Yongbing Tang

    (Chinese Academy of Sciences)

  • Hui-Ming Cheng

    (Tsinghua University)

Abstract

The growing demand for advanced lithium-ion batteries calls for the continued development of high-performance positive electrode materials. Polyoxyanion compounds are receiving considerable interest as alternative cathodes to conventional oxides due to their advantages in cost, safety and environmental friendliness. However, polyanionic cathodes reported so far rely heavily upon transition-metal redox reactions for lithium transfer. Here we show a polyanionic insertion material, Li2Fe(C2O4)2, in which in addition to iron redox activity, the oxalate group itself also shows redox behavior enabling reversible charge/discharge and high capacity without gas evolution. The current study gives oxalate a role as a family of cathode materials and suggests a direction for the identification and design of electrode materials with polyanionic frameworks.

Suggested Citation

  • Wenjiao Yao & A. Robert Armstrong & Xiaolong Zhou & Moulay-Tahar Sougrati & Pinit Kidkhunthod & Sarayut Tunmee & Chenghua Sun & Suchinda Sattayaporn & Philip Lightfoot & Bifa Ji & Chunlei Jiang & Nanz, 2019. "An oxalate cathode for lithium ion batteries with combined cationic and polyanionic redox," Nature Communications, Nature, vol. 10(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-11077-0
    DOI: 10.1038/s41467-019-11077-0
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