Effects of the oxidation treatment with K2FeO4 on the physical properties and electrochemical performance of a natural graphite as electrode material for lithium ion batteries

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	Effects of the oxidation treatment with K2FeO4 on the physical properties and electrochemical performance of a natural graphite as electrode material for lithium ion batteries
	W. Q. Mao; J. M. Wang; Z. H. Xu; Z. X. Niu; J. Q. Zhang
	2006
发表期刊	Electrochemistry Communications
ISSN	1388-2481
卷号	8 期号:8 页码:1326-1330
摘要	A natural graphite was modified by the solution oxidation with K2FeO4, and the physicochemical properties of the oxidated graphite were investigated by various physical techniques and electrochemical methods. The results of SEM, EDAX and Raman spectra showed that after the oxidation treatment with K2FeO4, some mesoscopic pores/channels and thin oxide layer are introduced in the surface of graphite. The results of electrochemical experiments indicated that the oxidated graphite displays much larger reversible capacity, better electrochemical-cycling stability and much lower electrochemical and diffusion polarizations than pristine natural graphite. The maximum reversible capacities of pristine natural graphite and the oxidated graphite are 244 and 363 mAh/g, respectively. (c) 2006 Elsevier B.V. All rights reserved.
部门归属	zhejiang univ, dept chem, hangzhou 310027, zhejian prov, peoples r china. chinese state key lab corros & protect, shenyang 110015, peoples r china.;wang, jm (reprint author), zhejiang univ, dept chem, yugu rd, hangzhou 310027, zhejian prov, peoples r china;wjm@cmsce.zju.edu.cn
关键词	Natural Graphite K2feo4 Raman Spectra Reversible Capacity Eis Anode Material Potassium Ferrate(Vi) Intercalation Impedance Iron Behavior Carbons Oxidant
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34402
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. Q. Mao,J. M. Wang,Z. H. Xu,et al. Effects of the oxidation treatment with K2FeO4 on the physical properties and electrochemical performance of a natural graphite as electrode material for lithium ion batteries[J]. Electrochemistry Communications,2006,8(8):1326-1330.
APA	W. Q. Mao,J. M. Wang,Z. H. Xu,Z. X. Niu,&J. Q. Zhang.(2006).Effects of the oxidation treatment with K2FeO4 on the physical properties and electrochemical performance of a natural graphite as electrode material for lithium ion batteries.Electrochemistry Communications,8(8),1326-1330.
MLA	W. Q. Mao,et al."Effects of the oxidation treatment with K2FeO4 on the physical properties and electrochemical performance of a natural graphite as electrode material for lithium ion batteries".Electrochemistry Communications 8.8(2006):1326-1330.