Lithium storage in commercial MoS2 in different potential ranges

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	Lithium storage in commercial MoS2 in different potential ranges
	Fang, XP ; Hua, CX ; Guo, XW ; Hu, YS ; Wang, ZX ; Gao, XP ; Wu, F ; Wang, JZ ; Chen, LQ
刊名	ELECTROCHIMICA ACTA
	2012
卷号	81 页码:155
关键词	CATHODE MATERIALS ELECTROCHEMICAL PERFORMANCE FACILE SYNTHESIS ION BATTERIES ELECTRODE INTERCALATION NANOSHEETS CELLS TIS2
ISSN号	0013-4686
通讯作者	Wang, ZX: Chinese Acad Sci, Inst Phys, Lab Solid State Ion, Beijing 100190, Peoples R China.
中文摘要	Transition metal sulfides are regarded as another type of high-performance anode materials following the transition metal oxides for lithium ion batteries. However, the lithium storage mechanisms of these sulfides are complicated. This work is intended to evaluate the electrochemical performances of molybdenum disulfide (MOS2)and find out its lithium storage mechanism at different lithium insertion stages. It is found that although the MOS2 shows excellent cycling stability in different voltage ranges, its structural transition is irreversible in the initial cycling. In contrast to the traditional beliefs, metallic Mo is found inert and Li2S/S is the redox couple in a deeply discharged MOS2/Li cell (0.01 V vs. Li/Li+). The metallic Mo nanoparticles are believed to be responsible for the enhanced cycling stability of the cell and act as the electronically conducting phase in the capacitive energy storage on the interfaces or grain boundaries of Mo/Li2Sx, nanocomposite. In addition, the Mo/Li2S nanocomposite can be used as a cathode material for lithium-sulfur batteries. (c) 2012 Elsevier Ltd. All rights reserved.
收录类别	SCI
资助信息	National 973 Program of China [2009CB220100]; National 863 Program [2009AA033101]; Open Foundation of Beijing Key Laboratory of Environment Science and Engineering; China-Australia Sci-Tech Collaboration Foundation (NSFC) [51011120044]
语种	英语
公开日期	2013-09-18
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/40905]
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	Fang, XP,Hua, CX,Guo, XW,et al. Lithium storage in commercial MoS2 in different potential ranges[J]. ELECTROCHIMICA ACTA,2012,81:155.
APA	Fang, XP.,Hua, CX.,Guo, XW.,Hu, YS.,Wang, ZX.,...&Chen, LQ.(2012).Lithium storage in commercial MoS2 in different potential ranges.ELECTROCHIMICA ACTA,81,155.
MLA	Fang, XP,et al."Lithium storage in commercial MoS2 in different potential ranges".ELECTROCHIMICA ACTA 81(2012):155.