Trip lite LiFeSO4F as cathode material for Li-ion batteries

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	Trip lite LiFeSO4F as cathode material for Li-ion batteries
	Dong, JP ; Yu, XQ ; Sun, Y ; Liu, L ; Yang, XQ ; Huang, XJ
刊名	JOURNAL OF POWER SOURCES
	2013
卷号	244 页码:716
关键词	Fluorosulphate Cathode material Lithium ion batteries Cation mixing
ISSN号	0378-7753
通讯作者	Huang, XJ (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
中文摘要	Monoclinic phase LiFeSO4F has a triplite like structure in which Li+/Fe2+ is fully mixing. Not 100% Li can be extracted from the lattice easily even at a rate of C/20, and the valence of Fe changes between ca +2 and +2.5 observed by XANES for a Li/LiFeSO4F cell cycled between 2.2 and 4.6 V. Two-phase reaction mechanism is verified by GITT due to the appearance of a flat plateau, and large polarization appears after more than 50% Li extracted from triplite-LiFeSO4F. A core shell model has been mentioned to explain its extreme polarization. In the fully mixing structure, there is no intact long-range pathway for Li+, so leading to sluggish kinetics effect and "inert" Li+ in the lattice. (C) 2012 Elsevier B.V. All rights reserved.
资助信息	Hi-tech Research and Development Program of China [2009AA033101]; Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies of the U.S. DOE [DE-AC02-98CH10886]; U.S. DOE
语种	英语
公开日期	2014-01-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57625]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Dong, JP,Yu, XQ,Sun, Y,et al. Trip lite LiFeSO4F as cathode material for Li-ion batteries[J]. JOURNAL OF POWER SOURCES,2013,244:716.
APA	Dong, JP,Yu, XQ,Sun, Y,Liu, L,Yang, XQ,&Huang, XJ.(2013).Trip lite LiFeSO4F as cathode material for Li-ion batteries.JOURNAL OF POWER SOURCES,244,716.
MLA	Dong, JP,et al."Trip lite LiFeSO4F as cathode material for Li-ion batteries".JOURNAL OF POWER SOURCES 244(2013):716.