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Issue 13, 2017
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Facile synthesis of nanoporous Li1+xV1−xO2@C composites as promising anode materials for lithium-ion batteries

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Abstract

Recently, a layered material with composition Li1+xV1−xO2 has been discovered as a promising alternative anode material to graphite due to its high volumetric capacity and low operation potential. Herein, we demonstrate a mild and cost-effective synthetic methodology to construct a novel nanoporous anode material (P-LVO@C), comprising Li1+xV1−xO2 nanocrystals embedded in a porous carbon matrix. The thermal decomposition of organic materials, including a triblock copolymer (P123) and citric acid, in a N2 atmosphere is the source of the nanoporous carbon in the porous composite material, while citric acid also plays a crucial role in maintaining the reductive environment of the synthetic medium. Due to the novel composition of Li1+xV1−xO2 (x ≥ 0.03), as well as its porous structure and well-integrated conductive framework, our P-LVO@C has great applicability as a high performance anode material for lithium-ion batteries. Our P-LVO@C composite electrode shows high reversible capacity with an excellent cycling performance (100 cycles) and good capacity retention (82%) at a higher rate (0.48C).

Graphical abstract: Facile synthesis of nanoporous Li1+xV1−xO2@C composites as promising anode materials for lithium-ion batteries

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Publication details

The article was received on 26 Dec 2016, accepted on 28 Feb 2017 and first published on 20 Mar 2017


Article type: Paper
DOI: 10.1039/C6CP08827A
Citation: Phys. Chem. Chem. Phys., 2017,19, 9156-9163
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    Facile synthesis of nanoporous Li1+xV1−xO2@C composites as promising anode materials for lithium-ion batteries

    P. Mei, M. Pramanik, J. Lee, T. Takei, Y. Ide, Md. S. A. Hossain, J. H. Kim and Y. Yamauchi, Phys. Chem. Chem. Phys., 2017, 19, 9156
    DOI: 10.1039/C6CP08827A

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