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Issue 28, 2018
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Ionic liquid electrolytes supporting high energy density in sodium-ion batteries based on sodium vanadium phosphate composites

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Abstract

Sodium-ion batteries (SIBs) are widely considered as alternative, sustainable, and cost-effective energy storage devices for large-scale energy storage applications. In this work, an easily fabricated sodium vanadium phosphate–carbon composite (NVP@C) cathode material shows a good rate capability, and long cycle life (89% capacity retention after 5000 cycles at a rate of 10C) with an ionic liquid electrolyte for room temperature sodium metal batteries. The electrochemical performance of a full-cell sodium ion battery with NVP@C and hard carbon electrodes was also investigated at room temperature with an ionic liquid electrolyte. The battery exhibited 368 W h kg−1 energy density and 75% capacity retention after 100 cycles, outperforming the organic electrolyte-based devices.

Graphical abstract: Ionic liquid electrolytes supporting high energy density in sodium-ion batteries based on sodium vanadium phosphate composites

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Publication details

The article was received on 15 Jan 2018, accepted on 14 Mar 2018 and first published on 14 Mar 2018


Article type: Communication
DOI: 10.1039/C8CC00365C
Citation: Chem. Commun., 2018,54, 3500-3503
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    Ionic liquid electrolytes supporting high energy density in sodium-ion batteries based on sodium vanadium phosphate composites

    C. V. Manohar, T. C. Mendes, M. Kar, D. wang, C. Xiao, M. Forsyth, S. Mitra and D. R. MacFarlane, Chem. Commun., 2018, 54, 3500
    DOI: 10.1039/C8CC00365C

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