Physical properties and electrochemical performance of LiMn2O4 cathode materials prepared by a precipitation method

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	Physical properties and electrochemical performance of LiMn2O4 cathode materials prepared by a precipitation method
	G. G. Wang; J. M. Wang; W. Q. Mao; H. B. Shao; J. Q. Zhang; C. N. Cao
	2005
发表期刊	Journal of Solid State Electrochemistry
ISSN	1432-8488
卷号	9 期号:7 页码:524-530
摘要	LiMn2O4 powder for lithium-ion batteries was prepared by a precipitation method, and the effects of calcination temperature on the physical properties and electrochemical performance of the samples were investigated by various methods. The results of X-ray diffraction (XRD) showed that the lattice parameter (a) and the unit cell volume (v) decrease with the increasing calcination temperature, and the LiMn2O4 sample calcined at 750 degrees C has smaller particle size and higher crystallinity than other samples. The results of the electrochemical experiments showed that the sample calcined at 750 degrees C has larger peak currents, higher initial capacity, and better cycling capability, because of its lower charge-transfer resistance and larger diffusion coefficient of Li+ ions than those of other samples.
部门归属	zhejiang univ, dept chem, hangzhou 310027, peoples r china. chinese state key lab corros & protect, shenyang 110015, peoples r china.;wang, jm (reprint author), zhejiang univ, dept chem, hangzhou 310027, peoples r china;wjm@cmsce.zju.edu.cn
关键词	Limn2o4 Precipitation Method Cyclic Voltammetry Electrochemical Impedance Spectroscopy Lithium Manganese Oxide Spinel Phase Sol-gel Pechini Process Ion Batteries Drying Method Electrodes Intercalation Graphite Diffusion
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35067
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. G. Wang,J. M. Wang,W. Q. Mao,et al. Physical properties and electrochemical performance of LiMn2O4 cathode materials prepared by a precipitation method[J]. Journal of Solid State Electrochemistry,2005,9(7):524-530.
APA	G. G. Wang,J. M. Wang,W. Q. Mao,H. B. Shao,J. Q. Zhang,&C. N. Cao.(2005).Physical properties and electrochemical performance of LiMn2O4 cathode materials prepared by a precipitation method.Journal of Solid State Electrochemistry,9(7),524-530.
MLA	G. G. Wang,et al."Physical properties and electrochemical performance of LiMn2O4 cathode materials prepared by a precipitation method".Journal of Solid State Electrochemistry 9.7(2005):524-530.