In Situ Observation of Electrolyte-Concentration-Dependent Solid Electrolyte Interphase on Graphite in Dimethyl Sulfoxide

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	In Situ Observation of Electrolyte-Concentration-Dependent Solid Electrolyte Interphase on Graphite in Dimethyl Sulfoxide
	Liu, Xing-Rui 1,2; Wang, Lin 1,2; Wan, Li-Jun 1; Wang, Dong 1
刊名	ACS APPLIED MATERIALS & INTERFACES
	2015-05-13
卷号	7 期号:18 页码:9573-9580
关键词	graphite anode dimethyl sulfoxide solid electrolyte interphase in situ atomic force microscopy
英文摘要	High lithium salt concentration strategy has been recently reported to be an effective method to enable various organic solvents as electrolyte of batteries. Here, we utilize in situ atomic force microscopy (AFM) to investigate the interfacial morphology on the graphite electrode in dimethyl sulfoxide (DMSO)-based electrolyte of various concentrations. The significant differences in interfacial features of the graphite in electrolytes of different concentrations. are revealed. In the concentrated electrolyte, stable films form primarily at the step edges and defects on the graphite surface after initial electrochemical cycling. On the other hand, in the dilute electrolyte; DMSO-solvated lithium ions constantly intercalate into graphite layers, and serious decomposition of solvent accompanied by structural deterioration of the graphite surface is observed. The in situ AFM results provide direct evidence for the concentration-dependent interface reactions between graphite electrode and DMSO-based electrolyte.
收录类别	SCI
语种	英语
公开日期	2015-11-02
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/28100]
专题	化学研究所_分子纳米结构与纳米技术实验室
作者单位	1.Chinese Acad Sci, CAS Key Lab Mol Nanostruct & Nanotechnol, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xing-Rui,Wang, Lin,Wan, Li-Jun,et al. In Situ Observation of Electrolyte-Concentration-Dependent Solid Electrolyte Interphase on Graphite in Dimethyl Sulfoxide[J]. ACS APPLIED MATERIALS & INTERFACES,2015,7(18):9573-9580.
APA	Liu, Xing-Rui,Wang, Lin,Wan, Li-Jun,&Wang, Dong.(2015).In Situ Observation of Electrolyte-Concentration-Dependent Solid Electrolyte Interphase on Graphite in Dimethyl Sulfoxide.ACS APPLIED MATERIALS & INTERFACES,7(18),9573-9580.
MLA	Liu, Xing-Rui,et al."In Situ Observation of Electrolyte-Concentration-Dependent Solid Electrolyte Interphase on Graphite in Dimethyl Sulfoxide".ACS APPLIED MATERIALS & INTERFACES 7.18(2015):9573-9580.