Dual Functions of Carbon in Li4Ti5O12/C Microspheres

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	Dual Functions of Carbon in Li4Ti5O12/C Microspheres
	L. Wen; Z. Y. Wu; H. Z. Luo; R. S. Song; F. Li
	2015
发表期刊	Journal of the Electrochemical Society
ISSN	0013-4651
卷号	162 期号:2 页码:A3038-A3044
摘要	Spinel Li4Ti5O12 has become an alternative material to replace graphite anodes in terms of solving safety issues and improving battery life-time. Unfortunately, as Li4Ti5O12 is an insulator, the low electrical conductivity becomes a major drawback, as it is unfavorable to higher rate capability. In addition to the low electronic conductivity, severe gassing during charge/discharge cycles is a critical but often-overlooked problem of Li4Ti5O12 batteries. Li4Ti5O12/C microspheres were prepared by assembling the nano-Li4Ti5O12 (50-300 nm) with pitch derived pyrolytic carbon. It was found that the coated carbon in Li4Ti5O12/C microspheres can effectively inhibit gassing and Mn deposition in LiMn2O4//Li4Ti5O12 battery. Carbon can also significantly improve rate capability and cycling performance comparedwith that of Li4Ti5O12 microspheres without carbon due to stable interface and superior electronic conductivity. (C) The Author(s) 2014. Published by ECS. All rights reserved.
部门归属	[wen, lei ; song, rensheng ; li, feng] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [wu, zeyi] shenzhen kingrunning energy mat co ltd, shenzhen 518000, peoples r china. [luo, hongze] csir, za-0001 pretoria, south africa. ; wen, l (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. ; fli@imr.ac.cn
关键词	Lithium-ion Batteries Electrochemical Properties Spinel Li4ti5o12 Anatase Tio2 Performance Electrode Composite Storage Anode Temperature
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/321006/73441
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. Wen,Z. Y. Wu,H. Z. Luo,et al. Dual Functions of Carbon in Li4Ti5O12/C Microspheres[J]. Journal of the Electrochemical Society,2015,162(2):A3038-A3044.
APA	L. Wen,Z. Y. Wu,H. Z. Luo,R. S. Song,&F. Li.(2015).Dual Functions of Carbon in Li4Ti5O12/C Microspheres.Journal of the Electrochemical Society,162(2),A3038-A3044.
MLA	L. Wen,et al."Dual Functions of Carbon in Li4Ti5O12/C Microspheres".Journal of the Electrochemical Society 162.2(2015):A3038-A3044.