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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 15    No. 3    June 2005

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Optimized synthesis technology of LiFePO4 for Li-ion battery
QU Tao(曲 涛), TIAN Yan-wen(田彦文), 
DING Yang(丁 扬),  ZHONG Can-yun(钟参云), ZHAI Yu-chun(翟玉春)

School of Materials and Metallurgy, North-Eastern University, 
Shenyang 110004, China

Abstract:The influence of factors of the carbon black content, sintering temperature, sintering time, molar ratio of Li to Fe, as well as the electrochemical properties of LiFePO4 for lithium ion battery were studied. The only technology was obtained by using range analysis through Latin orthogonal experiment of L44(16). The results show that the optimization synthesis technology of LiFePO4 is content of 5% doping carbon, sintering temperature of 700℃, molar ratio of Li to Fe of 1.03∶1 and sintering time of 16h. The optimized cathode synthesis techniques can make LiFePO4 have good electrochemical properties.

 

Key words: lithium ion battery; cathode material; LiFePO4; orthogonal test

ISSN 1672-7029
CN 43-1423/U

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