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Issue 48, 2012
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General synthesis of xLi2MnO3·(1 − x)LiMn1/3Ni1/3Co1/3O2 nanomaterials by a molten-salt method: towards a high capacity and high power cathode for rechargeable lithium batteries

Jinlong Liu,a  Long Chen,a  Mengyan Hou,a  Fei Wang,a  Renchao Cheb  and  Yongyao Xia*a 
Author affiliations

* Corresponding authors

a Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, Fudan University, Shanghai 200433, People's Republic of China
E-mail: yyxia@fudan.edu.cn
Fax: +86-21-51630318

b Advanced Materials Laboratory, Department of Material Science, Fudan University, Shanghai 200433, People's Republic of China

Abstract

Well-crystallized and high-performance xLi2MnO3·(1 − x)LiMn1/3Ni1/3Co1/3O2 (x = 0.3, 0.5, and 0.7) structurally integrated nanomaterials are prepared by a facile molten-salt strategy. The effects of heat-treatment temperature, time, and the molar ratio of KCl flux to reaction precursor on the particle size as well as the electrochemical properties are explored. Our results demonstrate that a 0.5Li2MnO3·0.5LiMn1/3Ni1/3Co1/3O2 electrode delivers a high reversible capacity of 313 mA h g−1 with significant enhancement in the initial coulombic efficiency (87%) at room temperature, exhibits superior rate capability and shows improved electrochemical properties over a wide temperature range, in particular at low temperature.

Graphical abstract: General synthesis of xLi2MnO3·(1 − x)LiMn1/3Ni1/3Co1/3O2 nanomaterials by a molten-salt method: towards a high capacity and high power cathode for rechargeable lithium batteries

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Publication details

The article was received on 28 Jul 2012, accepted on 12 Oct 2012 and first published on 12 Oct 2012


Article type: Paper
DOI: 10.1039/C2JM35026B
Citation: J. Mater. Chem., 2012,22, 25380-25387
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    General synthesis of xLi2MnO3·(1 − x)LiMn1/3Ni1/3Co1/3O2 nanomaterials by a molten-salt method: towards a high capacity and high power cathode for rechargeable lithium batteries

    J. Liu, L. Chen, M. Hou, F. Wang, R. Che and Y. Xia, J. Mater. Chem., 2012, 22, 25380
    DOI: 10.1039/C2JM35026B

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