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Synthesis of porous Li2MnO3-LiNi1/3Co1/3Mn1/3O2 nanoplates via colloidal crystal template

Published online by Cambridge University Press:  22 May 2013

Yong Jiang ,
Hua Zhuang ,
Qiliang Ma ,
Zheng Jiao ,
Haijiao Zhang ,
Ruizhe Liu ,
Yuliang Chu  and
Bing Zhao
Yong Jiang
Affiliation:
School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
Hua Zhuang
Affiliation:
School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
Qiliang Ma*
Affiliation:
School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
Zheng Jiao
Affiliation:
School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
Haijiao Zhang
Affiliation:
School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
Ruizhe Liu
Affiliation:
School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
Yuliang Chu
Affiliation:
Instrumental Analysis and Research Center, Shanghai University, Shanghai 200444, China
Bing Zhao*
Affiliation:
School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

The porous Li1.2Ni0.13Co0.13Mn0.54O2 nanoplate is prepared by colloidal crystal template assembled by the poly (methyl methacrylate) (PMMA) beads. Scanning electron microscopy and transmission electron microscopy results show that the nanoplates of porous solid solution cathodes are composed of nanoparticles with a size range of 30 nm, which interweave together forming an open porous structure. Electrochemical tests show that porous Li1.2Ni0.13Co0.13Mn0.54O2 cathode could deliver higher discharge capacity than that of bulk Li1.2Ni0.13Co0.13Mn0.54O2 cathode at all C-rates. The enhanced structural stability reflected by high ratios of integrated Intensity I(003)/I(104) and lattice parameters c/a, high specific surface area, a fast reaction and ionic diffusion kinetics of the nanoplates are considered attributable to the improved electrochemical properties.

Type
Articles
Information
Journal of Materials Research , Volume 28 , Issue 11 , 14 June 2013 , pp. 1505 - 1511
Copyright
Copyright © Materials Research Society 2013 

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References

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