Carbon-coated Li4Ti5O12 Anode Materials Synthesized Using H2TiO3 as Ti Source

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	Carbon-coated Li4Ti5O12 Anode Materials Synthesized Using H2TiO3 as Ti Source
	L. J. Gong; Y. X. Chen; H. J. Yu; H. B. Liu; C. F. Li; Z. Q. Liu
	2014
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	30 期号:11 页码:1092-1095
摘要	Two low-cost synthesis routes have been developed to fabricate carbon-coated Li4Ti5O12 by using H2TiO3 instead of anatase TiO2 as Ti source through solid-state reaction process. One route is a direct solid mixture of H2TiO3, Li2CO3 and pitch followed by high-temperature solid-state reaction. The other includes mixture of H2TiO3 and Li2CO3 with pitch dissolved in furanidine under vacuum and the same solid-state reaction procedure is followed after the mixture is totally dried. Microstructural investigations indicate that H2TiO3 exhibits secondary aggregates morphology with primary particle sizes of 10-20 nm. Carbon-coating layers with thickness of 2-3 nm have been observed on Li4Ti5O12 synthesized by the two routes. Cyclic performance, rate capability and electrochemical impedance spectrum of the two Li4Ti5O12/C composites have been performed, which indicate that Li4Ti5O12/C obtained by furanidine-assisted mixture exhibits better electrochemical performance than Li4Ti5O12/C synthesized by direct solid mixture. The possible reasons have been discussed. The low-cost synthesis routes of Li4Ti5O12/C using H2TiO3 as Ti source are expected to be more competitive than the traditional one for practical applications.
部门归属	[gong, lijun ; chen, yuxi ; yu, hongjiang ; liu, hongbo] hunan univ, coll mat sci & engn, changsha 410082, hunan, peoples r china. [li, caifu ; liu, zhi-quan] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; chen, yx (reprint author), hunan univ, coll mat sci & engn, changsha 410082, hunan, peoples r china. ; yxchen@hnu.edu.cn ; zqliu@imr.ac.cn
关键词	Lithium-ion Batteries Anode Materials Electrode Electrochemical Performance Microstructure Lithium-ion Batteries Performance
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73230
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. J. Gong,Y. X. Chen,H. J. Yu,et al. Carbon-coated Li4Ti5O12 Anode Materials Synthesized Using H2TiO3 as Ti Source[J]. Journal of Materials Science & Technology,2014,30(11):1092-1095.
APA	L. J. Gong,Y. X. Chen,H. J. Yu,H. B. Liu,C. F. Li,&Z. Q. Liu.(2014).Carbon-coated Li4Ti5O12 Anode Materials Synthesized Using H2TiO3 as Ti Source.Journal of Materials Science & Technology,30(11),1092-1095.
MLA	L. J. Gong,et al."Carbon-coated Li4Ti5O12 Anode Materials Synthesized Using H2TiO3 as Ti Source".Journal of Materials Science & Technology 30.11(2014):1092-1095.