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化学工业与工程 2008, Vol. 25 Issue (6) :471-474    DOI:
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制备条件对磷酸铁锂电化学性能的影响
刘晓亮;单忠强;张磊;田建华;
天津大学化工学院;
Effects of Experiment Conditions on Electrochemical Performance of Lithium Iron Phospho-Olivine
LIU Xiao-liang,SHAN Zhong-qiang,ZHANG Lei,TIAN Jian-hua(School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China)
(School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China

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摘要 采用辅助微波加热的方法,制得了粒子较细、粒径分布窄的LiFePO4/C化合物。利用X射线衍射(XRD)、扫描电镜(SEM)和透射电镜(TEM)对所得样品的晶体结构、表面形貌和粒径分布进行了分析研究。试验表明,采用该反应方法有利于控制产物的形貌和粒径。用LiFePO4/C作正极材料进行了电池的充放电和循环伏安测试,结果显示,材料中锂离子的充放电平台相对锂电极电位为3.5 V左右,首次放电量为151 mA.h/g,表现出了良好的循环性能和高倍率性能。
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作者相关文章
刘晓亮
单忠强
张磊
田建华
关键词锂离子电池   正极材料   磷酸铁锂   微波加热     
Abstract: The fine-particle electroactive material LiFePO_4/C was synthesized by microwave heating,and the samples were characterized by X-ray diffraction,SEM and TEM.The reaction conditions was favored for offering some control of the product morphology and particle size.The results of charge-discharge test and cyclic voltammetry of LiFePO_4/C showed a lithium insertion plateau was around 3.5 V vs Li, with a specific capacity of 151 mA·h/g.Excellent electrochemical reversibility and cycling stability were achieved.
Keywordslithium ion battery   cathode materials   lithium iron phosphate   microwave heating     
Received 2008-11-15; published 2008-11-15
引用本文:   
刘晓亮;单忠强;张磊;田建华;.制备条件对磷酸铁锂电化学性能的影响[J].  化学工业与工程, 2008,25(6): 471-474
LIU Xiao-liang,SHAN Zhong-qiang,ZHANG Lei,TIAN Jian-hua.Effects of Experiment Conditions on Electrochemical Performance of Lithium Iron Phospho-Olivine[J].  Chemcial Industry and Engineering, 2008,25(6): 471-474
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