Charge dynamics and untapped redox potential in a Mn<sup>1+</sup> - based electrode.

ORAL

Abstract

Manganese hexacyanomanganate (MnHCMn) with an unusual Mn1+ charged valence state has recently been identified as a promising sodium ion anode material, in spite of what appears to be an unfavorable closed-shell electron configuration. I will present an analysis of MnHCMn charge dynamics with bulk- and surface-sensitive soft X-ray absorption spectroscopy (sXAS) and resonant inelastic X-ray scattering (RIXS) at the Mn L3 edge. A charge transfer collective mode is observed, and found to represent the likely energy of the next charging redox plateau, which is yet unachieved in redox experiments. This reveals a unique capability that RIXS can provide for strongly correlated battery electrode materials, and suggests a significant untapped potential for MnHCMn anodes.

*D. Sar acknowledges fellowship support from Natron Energy.

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Presenters

  • Divyanshi Sar

    • New York University

Authors

  • Divyanshi Sar

    • New York University

  • S. Alexander Breitweiser

    • New York University

  • Ruimin Qiao

    • Natron Energy

  • Ali Firouzi

    • Natron Energy

  • Lin Miao

    • New York University

  • Rourav Basak

    • New York University

  • Shahrokh Motallebi

    • Natron Energy

  • Christian Valencia

    • Natron Energy

  • Mai Fujimoto

    • Natron Energy

  • Colin Wessells

    • Natron Energy

  • Hannah Israel

    • Natron Energy

  • Yi-De Chuang

    • Advanced Light Source, Lawrence Berkeley National Laboratory
    • Natron Energy

  • Wanli Yang

    • Lawrence Berkeley National Laboratory
    • Natron Energy

  • Lewis A Wray

    • Physics, New York University
    • New York University
    • Natron Energy