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Issue 20, 2013
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Cerium vanadate nanoparticles as a new anode material for lithium ion batteries

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Abstract

The most commonly used anode materials for lithium-ion batteries rely on graphite which bears the disadvantage that lithium dendrites may form because of the relatively low Li-insertion potentials. To avoid lithium dendrite formation, the ideal negative electrodes for forthcoming lithium-ion battery applications require a charge/discharge potential of ∼1 V versus Li+/Li for safety concerns. Here, we report on the use of the hydrothermally prepared tetragonal CeVO4 as a new anode material for LIBs. The potentials of reversible lithium insertion for the CeVO4 anode are about 1.0 and 1.5 V versus Li+/Li, and the capacity of the material is 210 mA h g−1 after 50 cycles at a current density of 10 mA g−1. The Li-ion insertion and extraction mechanism of CeVO4 has been elucidated on the basis of cyclic voltammetry and in situ X-ray diffraction investigations. A two-step reduction of V3+ to V2+ and V2+ to V+ is observed for the lithium insertion during the discharge process of the material, whereas the oxidation of V+ to V2+ and V2+ to V3+ is found to be fully reversible for the lithium extraction during the charge process.

Graphical abstract: Cerium vanadate nanoparticles as a new anode material for lithium ion batteries

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Publication details

The article was received on 07 Nov 2012, accepted on 01 Mar 2013 and first published on 01 Mar 2013


Article type: Paper
DOI: 10.1039/C3RA22795B
Citation: RSC Adv., 2013,3, 7403-7407
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    Cerium vanadate nanoparticles as a new anode material for lithium ion batteries

    H. Zhang, J. Shu, X. Wei, K. Wang and J. Chen, RSC Adv., 2013, 3, 7403
    DOI: 10.1039/C3RA22795B

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