Electrochemical Properties of Li-Riched Li[Li0.2Co0.4Mn 0.4]O2 Cathode Material for Lithium Ion Batteries

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The Li[Li0.2Co0.4Mn0.4]O2 cathode material was prepared by a sol-gel method. The X-ray diffraction (XRD) spectroscopic showed that the material was a solid solution of LiCoO2 and Li2MnO3. The material showed a reversible discharge capacity of 155.6 mAhg−1 in the voltage window of 2.0-4.3 V after percharge to 4.6 V. While the material cycled in the same voltage window without precharge could only deliver capacity of 77.6 mAhg−1. This high capacity was attributed to the loss of oxygen and structural rearrangement in the precharge process.

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Periodical:

Advanced Materials Research (Volumes 347-353)

Edited by:

Weiguo Pan, Jianxing Ren and Yongguang Li

Pages:

3658-3661

Citation:

Z. Li et al., "Electrochemical Properties of Li-Riched Li[Li0.2Co0.4Mn 0.4]O2 Cathode Material for Lithium Ion Batteries", Advanced Materials Research, Vols. 347-353, pp. 3658-3661, 2012

Online since:

October 2011

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$38.00

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