锂离子电池正极材料Li［CoxLi 1/3-x/3Mn2/3-2x/3］O2的制备与表征

J4 ›› 2009, Vol. 47 ›› Issue (4): 823-826.

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Synthesis and Characterizations of Li［Co_xLi _{1/3-x/3}Mn_2/3-2x/3］O₂Cathode Materials for Lithium Secondary Batteries

CHEN Hong^1,2, XU Chun yan^3, WEI Ying jin^1, WANG Chun zhong^1

1. College of Materials Science and Engineering, Jilin University, Changchun 130012, China|2. College of Physics, Beihua University, Jilin |132013, Jilin Province, China|3. Xiangfan 525 Pump Industry Co Ltd, Xiangfan |441021, Hubei Province, China

Received:2008-11-12 Online:2009-07-26 Published:2009-08-24
Contact: WANG Chun zhong E-mail:wcz@jlu.edu.cn

Abstract

Abstract:

Li［Co_xLi _{1/3-x/3}Mn_2/3-2x/3］O₂(x=0.1,0.2,0.3,0.4,0.5) cathode materials were synthesized by means of the citric acid\|based sol\|gel method. Their structures and electrochemical properties were investigated via XRD, Raman, FTIR and electrochemical charge\|discharge cycling. The results show that the material with x=0.5 exhibited the highest reversible capacity and the best capacity retention. 

Key words: lithium secondary battery, Li［Co_xLi _{1/3-x/3}Mn_2/3-2x/3］O₂, Raman spectrum, FTIR

CLC Number:

TG156

CHEN Gong, XU Chun-Yan, WEI Yang-Jin, WANG Chun-Zhong-. Synthesis and Characterizations of Li［Co_xLi _{1/3-x/3}Mn_2/3-2x/3］O₂Cathode Materials for Lithium Secondary Batteries[J].J4, 2009, 47(4): 823-826.

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Synthesis and Characterizations of Li［Co_xLi _{1/3-x/3}Mn_2/3-2x/3］O₂Cathode Materials for Lithium Secondary Batteries

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Synthesis and Characterizations of Li［CoxLi 1/3-x/3Mn2/3-2x/3］O2Cathode Materials for Lithium Secondary Batteries

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Synthesis and Characterizations of Li［Co_xLi _{1/3-x/3}Mn_2/3-2x/3］O₂Cathode Materials for Lithium Secondary Batteries