Performances of Layered LiNi0.5Co0.5O2 Prepared by Microwave\|solid Phase Compound Heat Method

Chem. J. Chinese Universities

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Performances of Layered LiNi_0.5Co_0.5O₂ Prepared by Microwave\|solid Phase Compound Heat Method

YANG Shu-Ting^1,2, YUE Hong-Yun^1,2, YIN Yan-Hong^1,2, YANG Jin-Xin^1,2, YANG Wei-Guang^1,2, WANG Hui^1,2

1. College of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453007;
2. New Material Research Center of Energy Source, Xinxiang 453007, China

Received:2005-11-10 Revised:1900-01-01 Online:2006-11-10 Published:2006-11-10
Contact: YANG Shu-Ting

Abstract

Abstract: Layered cathode materials for lithium ion batteries, LiNi_0.5Co_0.5O₂, was prepared by microwave-solid phase compound heat method using polyacrylamide(PAM) as template. The effects of calcination temperature and time on the electrochemical performance, crystal structure and morphology of the materials were studied by using cyclic voltammetry, XRD, SEM techniques and charge-discharge test. The results show that the discharge capacity reaches 154 mA·h/g for the material(with pure layer structure) calcined at 750 ℃ for 4 h. And it was still above 148 mA·h/g after ten cycles. At the same time, morphology of the material synthesized under the same conditions was sphere-like, which contributed to increasing the density of electrode.

Key words: Lithium ion battery, Layered cathode material, Microwave-solid phase calcination method, LiNi0.5Co0.5O2

CLC Number:

TrendMD:

YANG Shu-Ting^1,2, YUE Hong-Yun^1,2, YIN Yan-Hong^1,2, YANG Jin-Xin^1,2, YANG Wei-Guang^1,2, WANG Hui^1,2. Performances of Layered LiNi_0.5Co_0.5O₂ Prepared by Microwave\|solid Phase Compound Heat Method
[J]. Chem. J. Chinese Universities, doi: .

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Performances of Layered LiNi_0.5Co_0.5O₂ Prepared by Microwave\|solid Phase Compound Heat Method

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