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Enabling Sodium Batteries Using Lithium-Substituted Sodium Layered Transition Metal Oxide Cathodes

Authors

  • Donghan Kim,

    1. Electrochemical Energy Storage Technologies, Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave, Argonne, Illinois, USA
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  • Sun-Ho Kang,

    1. Electrochemical Energy Storage Technologies, Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave, Argonne, Illinois, USA
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  • Michael Slater,

    1. Electrochemical Energy Storage Technologies, Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave, Argonne, Illinois, USA
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  • Shawn Rood,

    1. Electrochemical Energy Storage Technologies, Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave, Argonne, Illinois, USA
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  • John T. Vaughey,

    1. Electrochemical Energy Storage Technologies, Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave, Argonne, Illinois, USA
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  • Naba Karan,

    1. X-ray Science Division, Advanced Photon Source, 9700 S. Cass Ave, Argonne National Laboratory, Argonne, Illinois, USA
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  • Mahalingam Balasubramanian,

    Corresponding author
    1. X-ray Science Division, Advanced Photon Source, 9700 S. Cass Ave, Argonne National Laboratory, Argonne, Illinois, USA
    • X-ray Science Division, Advanced Photon Source, 9700 S. Cass Ave, Argonne National Laboratory, Argonne, Illinois, USA.
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  • Christopher S. Johnson

    Corresponding author
    1. Electrochemical Energy Storage Technologies, Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave, Argonne, Illinois, USA
    • Electrochemical Energy Storage Technologies, Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave, Argonne, Illinois, USA
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Abstract

original image

Layered Na0.85Li0.17Ni0.21Mn0.64O2 is synthesized and evaluated as a cathode in Na batteries. The resulting P2 crystal structure allows for single-phase reversible Na intercalation reaction demonstrating 100 mAhg−1. The cathode can be discharged with high rate (65 mAhg−1 at 25 C rate). The presence of Li and the electronic ordering of Ni(II)/Mn(IV) in the transition metal layer is responsible for material stability.

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