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Structural water and disordered structure promote aqueous sodium-ion energy storage in sodium-birnessite

Author

Listed:
  • Xiaoqiang Shan

    (University of New Hampshire)

  • Fenghua Guo

    (University of New Hampshire)

  • Daniel S. Charles

    (University of New Hampshire)

  • Zachary Lebens-Higgins

    (Binghamton University)

  • Sara Abdel Razek

    (Binghamton University)

  • Jinpeng Wu

    (Lawrence Berkeley National Laboratory)

  • Wenqian Xu

    (Argonne National Laboratory)

  • Wanli Yang

    (Lawrence Berkeley National Laboratory)

  • Katharine L. Page

    (Spallation Neutron Source, Oak Ridge National Laboratory)

  • Joerg C. Neuefeind

    (Spallation Neutron Source, Oak Ridge National Laboratory)

  • Mikhail Feygenson

    (Spallation Neutron Source, Oak Ridge National Laboratory
    Forschungszentrum Juelich GmbH)

  • Louis F. J. Piper

    (Binghamton University)

  • Xiaowei Teng

    (University of New Hampshire)

Abstract

Birnessite is a low-cost and environmentally friendly layered material for aqueous electrochemical energy storage; however, its storage capacity is poor due to its narrow potential window in aqueous electrolyte and low redox activity. Herein we report a sodium rich disordered birnessite (Na0.27MnO2) for aqueous sodium-ion electrochemical storage with a much-enhanced capacity and cycling life (83 mAh g−1 after 5000 cycles in full-cell). Neutron total scattering and in situ X-ray diffraction measurements show that both structural water and the Na-rich disordered structure contribute to the improved electrochemical performance of current cathode material. Particularly, the co-deintercalation of the hydrated water and sodium-ion during the high potential charging process results in the shrinkage of interlayer distance and thus stabilizes the layered structure. Our results provide a genuine insight into how structural disordering and structural water improve sodium-ion storage in a layered electrode and open up an exciting direction for improving aqueous batteries.

Suggested Citation

  • Xiaoqiang Shan & Fenghua Guo & Daniel S. Charles & Zachary Lebens-Higgins & Sara Abdel Razek & Jinpeng Wu & Wenqian Xu & Wanli Yang & Katharine L. Page & Joerg C. Neuefeind & Mikhail Feygenson & Louis, 2019. "Structural water and disordered structure promote aqueous sodium-ion energy storage in sodium-birnessite," Nature Communications, Nature, vol. 10(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-12939-3
    DOI: 10.1038/s41467-019-12939-3
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    Cited by:

    1. Zhaoheng Liang & Fei Tian & Gongzheng Yang & Chengxin Wang, 2023. "Enabling long-cycling aqueous sodium-ion batteries via Mn dissolution inhibition using sodium ferrocyanide electrolyte additive," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    2. Kangkang Ge & Hui Shao & Encarnacion Raymundo-Piñero & Pierre-Louis Taberna & Patrice Simon, 2024. "Cation desolvation-induced capacitance enhancement in reduced graphene oxide (rGO)," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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