Synthesis and Electrochemistry Characteristics of Layered Li[Li(1/3-x)Mn(2/3-x)NixCox]O2 (x = 0.1, 0.15, 0.2, 0.22, 0.25) Cathode Materials for Lithium Secondary Batteries

Abstract:

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Li[Li(1/3-x)Mn(2/3-x)NixCox]O2 (x=0.1, 0.15, 0.2, 0.22, 0.25) compounds were synthesized and studied by the X-ray diffraction method and electrochemical techniques. The XRD analysis showed that these compounds could be classified as the α-NaFeO2 structure type. Both a and c parameters decreased linearly, while c/a increased with the increase of Ni and Co content. The first discharge capacity increases with increasing lithium content at the 3a sites in the Li[Li(1/3-x)Mn(2/3-x)NixCox]O2. A Li[Li0.23Mn0.57Ni0.1Co0.1]O2 electrode delivers discharge capacities of 238 mAh/g at C/10 between 4.6V and 2.5V.

Info:

Periodical:

Advanced Materials Research (Volumes 197-198)

Edited by:

Huaiying Zhou, Tianlong Gu, Daoguo Yang, Zhengyi Jiang, Jianmin Zeng

Pages:

1092-1095

DOI:

10.4028/www.scientific.net/AMR.197-198.1092

Citation:

Z. F. Li et al., "Synthesis and Electrochemistry Characteristics of Layered Li[Li(1/3-x)Mn(2/3-x)NixCox]O2 (x = 0.1, 0.15, 0.2, 0.22, 0.25) Cathode Materials for Lithium Secondary Batteries", Advanced Materials Research, Vols. 197-198, pp. 1092-1095, 2011

Online since:

February 2011

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$35.00

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