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Effect of β-Cyclodextrin on Electrochemical Properties of LiMn2O4 Synthesized by Solid-State Combustion Synthesis

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Abstract:

Spinel LiMn2O4 cathode material was rapidly prepared by solid-state combustion synthesis which used lithium carbonate and manganese carbonate as raw materials and β-cyclodextrin as a fuel. The effects of amount of β-cyclodextrin and calcination temperature on their structure and electrochemical properties were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), galvanostatic charge-discharge test and cyclic voltammetry (CV). The optimal synthesis conditions were found to be 5 wt% β-cyclodextrin. Under these conditions, high-purity spinel LiMn2O4 was obtained, and its discharge specific capacity was 110.5 mAh/g in the first cycle and still retained at 99.9 mAh/g after 40 cycles.

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Periodical:

Advanced Materials Research (Volumes 785-786)

Pages:

797-802

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.785-786.797

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Online since:

September 2013

Authors:

Hong Li Bai, Xian Yan Zhou, Can Can Peng, Bin Li, Zhi Fang Zhang, Ming Wu Xiang, Jun Ming Guo*

Keywords:

Electrochemical Performance, Lithium-Ion Battery, Solid-State Combustion Synthesis, Spinel LiMn2O4, β-Cyclodextrin

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

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