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Issue 34, 2013
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A Na3V2(PO4)3 cathode material for use in hybrid lithium ion batteries

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Abstract

A NASICON-structure Na3V2(PO4)3 cathode material prepared by carbothermal reduction method is employed in a hybrid-ion battery with Li-involved electrolyte and anode. The ion-transportation mechanism is firstly investigated in this complicated system for an open three-dimensional framework Na3V2(PO4)3. Ion-exchange is greatly influenced by the standing time, for example, the 1 hour battery presents a specific capacity of 128 mA h gāˆ’1 while the 24 hour battery exhibits a value of 148 mA h gāˆ’1 with improved rate and cycling performances over existing literature reported Li-ion batteries. In the hybrid-ion system, an ion-exchange process likely takes place between the two Na(2) sites in the rhombohedral structure. NaLi2V2(PO4)3 could be produced by ion-transportation since the Na+ in the Na(1) site is stationary and the three Na(2) sites could be used to accommodate the incoming alkali ions; LixNayV2(PO4)3 would come out when the vacant site in Na(2) was occupied depending on the applied voltage range. The reported methodology and power characteristics are greater than those previously reported.

Graphical abstract: A Na3V2(PO4)3 cathode material for use in hybrid lithium ion batteries

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Publication details

The article was received on 03 Jun 2013, accepted on 19 Jun 2013 and first published on 23 Jul 2013


Article type: Paper
DOI: 10.1039/C3CP52308J
Citation: Phys. Chem. Chem. Phys., 2013,15, 14357-14363
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    A Na3V2(PO4)3 cathode material for use in hybrid lithium ion batteries

    W. Song, X. Ji, C. Pan, Y. Zhu, Q. Chen and C. E. Banks, Phys. Chem. Chem. Phys., 2013, 15, 14357
    DOI: 10.1039/C3CP52308J

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