Preparation and Properties of Lithium(trifluoromethanesulfonyl) - (trifluoroethoxysulfonyl) imide as Conducting Salt for Nonaqueous Electrolyte Solutions

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	Preparation and Properties of Lithium(trifluoromethanesulfonyl) - (trifluoroethoxysulfonyl) imide as Conducting Salt for Nonaqueous Electrolyte Solutions
	Liu, CY ; Zhang, H ; Zheng, LP ; Xu, F ; Feng, WF ; Nie, J ; Huang, XJ ; Zhou, ZB
刊名	CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
	2014
卷号	35 期号:8 页码:1771
关键词	Lithium-ion battery Nonaqueous electrolyte Lithium(trifluoromethanesulfonyl) (trifluoroethoxysulfonyl) imide {Li[TFO-TFSI]} Al foil corrosion
ISSN号	0251-0790
通讯作者	Nie, J (reprint author), Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Minist Educ, Key Lab Large Format Battery Mat & Syst, Wuhan 430074, Peoples R China.
中文摘要	A novel lithium salt, lithium(trifluoromethanesulfonyl) (trifluoroethoxysulfonyl) imide {Li [(CF3SO2) (CF3CH2OSO2) N], Li[TEO-TEST]}, and the corresponding nonaqueous electrolytes of 1. 0 mol/L Li[TFO-TESI] in a mixture of ethylene carbonate/ethyl methyl carbonate(EC/EMC, 3 : 7, volume ratio) were prepared. The structure, composition and purity of the as-prepared Li [TEO-TESI] were confirmed by nuclear magnetic resonance spectroscopy (NMR), infrared spectroscopy (IR), mass spectrometry (MS), elemental analysis(EA), and ion chromatography(IC). The thermal properties of Li [TEO-TEST] and its nonaqueous electrolytes, 1. 0 mol/L Li[TEO-TEST]-EC/EMC (3 : 7), were characterized by differential scanning calorimetry(DSC) and thermogravimetric analysis(TGA). The fundamental properties of nonaqueous electrolyte solution of Li [TEO-TEST] were characterized by electrochemical impedance spectroscopy (EIS), cyclic voltammetry(CV), chronoamperometry and scanning electron microscope(SEM). The nonaqueous electrolytes of Li[TEO-TESI] shows excellent electrochemical stability, and does not corrode Al below 4. 2 V. Both Li/synthetic graphite and synthetic graphite/LiCoO2 cells using Li[TEO-TEST] show good cycling performances at room temperature, and the graphite/LiCoO2 cells using Li [TEO-TEST] shows much better capacity retention after 100 cycles than those using LiPF6.
资助信息	National Natural Science Foundation of China [51172083]
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/58953]
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	Liu, CY,Zhang, H,Zheng, LP,et al. Preparation and Properties of Lithium(trifluoromethanesulfonyl) - (trifluoroethoxysulfonyl) imide as Conducting Salt for Nonaqueous Electrolyte Solutions[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2014,35(8):1771.
APA	Liu, CY.,Zhang, H.,Zheng, LP.,Xu, F.,Feng, WF.,...&Zhou, ZB.(2014).Preparation and Properties of Lithium(trifluoromethanesulfonyl) - (trifluoroethoxysulfonyl) imide as Conducting Salt for Nonaqueous Electrolyte Solutions.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,35(8),1771.
MLA	Liu, CY,et al."Preparation and Properties of Lithium(trifluoromethanesulfonyl) - (trifluoroethoxysulfonyl) imide as Conducting Salt for Nonaqueous Electrolyte Solutions".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 35.8(2014):1771.