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Issue 42, 2016
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Exploration of Na7Fe4.5(P2O7)4 as a cathode material for sodium-ion batteries

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Abstract

A novel Na7Fe4.5(P2O7)4 compound was fabricated as a cathode for sodium-ion batteries by a mechanical milling assisted solid state method for the first time. The as-prepared material exhibits superior electrochemical performance based on half-cell testing. After uniform carbon coating, it exhibits lower electrochemical polarization, better conductivity and faster sodium ion diffusion kinetics. Benefiting from these advantages, the Na7Fe4.5(P2O7)4 was endowed with higher charge–discharge capacity, better cycle life and outstanding rate performance. The high rate capability and good cyclability of this material in non-aqueous electrolytes are advantageous for low-cost and safe battery systems.

Graphical abstract: Exploration of Na7Fe4.5(P2O7)4 as a cathode material for sodium-ion batteries

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Publication details

The article was received on 10 Jul 2016, accepted on 22 Sep 2016 and first published on 22 Sep 2016


Article type: Paper
DOI: 10.1039/C6TA05780B
Citation: J. Mater. Chem. A, 2016,4, 16531-16535
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    Exploration of Na7Fe4.5(P2O7)4 as a cathode material for sodium-ion batteries

    Y. Niu, M. Xu, B. Shen, C. Dai and C. M. Li, J. Mater. Chem. A, 2016, 4, 16531
    DOI: 10.1039/C6TA05780B

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