Issue 2, 2014
From the journal:

Energy & Environmental Science

Improving the electrochemical performance of layered lithium-rich transition-metal oxides by controlling the structural defects

Jinlong Liu,a   Mengyan Hou,a   Jin Yi,a   Shaoshuai Guo,a   Congxiao Wanga  and  Yongyao Xia*a  

* 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

Abstract

We report the electrochemical properties of layered lithium-rich Li1.2Mn0.54Ni0.13Co0.13O2 cathode materials with various degrees of stacking faults, which are prepared via a facile molten-salt method using a variety of fluxes including KCl, Li2CO3, and LiNO3. The frequency of the stacking faults is highly dependent on the temperature and molten salt type used during the synthesis. A well-crystallized Li1.18Mn0.54Ni0.13Co0.13O2 nanomaterial with a larger amount of stacking faults synthesized at 800 °C for 10 h in an inactive KCl flux delivers a high reversible capacity of ∼310 mA h g−1 at room temperature, while the samples prepared in the chemically active fluxes with a smaller amount of stacking faults show poor electrochemical performance.

Graphical abstract: Improving the electrochemical performance of layered lithium-rich transition-metal oxides by controlling the structural defects

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Article information

DOI
https://doi.org/10.1039/C3EE41664J
Article type
Paper
Submitted
17 May 2013
Accepted
08 Nov 2013
First published
11 Nov 2013

Energy Environ. Sci., 2014,7, 705-714

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Improving the electrochemical performance of layered lithium-rich transition-metal oxides by controlling the structural defects

J. Liu, M. Hou, J. Yi, S. Guo, C. Wang and Y. Xia, Energy Environ. Sci., 2014, 7, 705 DOI: 10.1039/C3EE41664J

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