Effect of sulfolane on the morphology and chemical composition of the solid electrolyte interphase layer in lithium bis(oxalato) borate-based electrolyte

ISL OpenIR > 青海盐湖研究所知识仓储

	Effect of sulfolane on the morphology and chemical composition of the solid electrolyte interphase layer in lithium bis(oxalato) borate-based electrolyte
	Yu, Tao 1; Liu, Jinliang 1; Zhang, Hongming 1; Li, Shiyou 1; Cui, Xiaoling 1; Feng, Huixia 1; Zhao, Yangyu 1; Liu, Haining2 ; Li, Faqiang 2
	2014
发表期刊	SURFACE AND INTERFACE ANALYSIS
卷号	46 期号:1 页码:48-55
关键词	Sulfolane Lithium Bis(Oxalate)Borate Solid Electrolyte Interphase Electrolyte Lithium-ion Battery
摘要	To discuss the source of sulfolane (SL) in decreasing the interface resistance of Li/mesophase carbon microbeads cell with lithium bis(oxalate)borate (LiBOB)-based electrolyte, the morphology and the composition of the solid electrolyte interphase (SEI) layer on the surface of carbonaceous anode material have been investigated. Compared with the cell with 0.7moll(-1) LiBOB-ethylene carbonate/ethyl methyl carbonate (EMC) (1:1, v/v) electrolyte, the cell with 0.7moll(-1) LiBOB-SL/EMC (1:1, v/v) electrolyte shows better film-forming characteristics in SEM (SEI) spectra. According to the results obtained from Fourier transform infrared spectroscopy, XPS, and density functional theory calculations, SL is reduced to Li2SO3 and LiO2S(CH2)(8)SO2Li through electrochemical processes, which happens prior to the reduction of either ethylene carbonate or EMC. It is believed that the root of impedance reduction benefits from the rich existence of sulfurous compounds in SEI layer, which are better conductors of Li+ ions than analogical carbonates. Copyright (c) 2013 John Wiley & Sons, Ltd.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/5726
专题	青海盐湖研究所知识仓储中国科学院青海盐湖研究所盐湖资源与化学实验室
作者单位	1.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China 2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China
推荐引用方式 GB/T 7714	Yu, Tao,Liu, Jinliang,Zhang, Hongming,et al. Effect of sulfolane on the morphology and chemical composition of the solid electrolyte interphase layer in lithium bis(oxalato) borate-based electrolyte[J]. SURFACE AND INTERFACE ANALYSIS,2014,46(1):48-55.
APA	Yu, Tao.,Liu, Jinliang.,Zhang, Hongming.,Li, Shiyou.,Cui, Xiaoling.,...&Li, Faqiang.(2014).Effect of sulfolane on the morphology and chemical composition of the solid electrolyte interphase layer in lithium bis(oxalato) borate-based electrolyte.SURFACE AND INTERFACE ANALYSIS,46(1),48-55.
MLA	Yu, Tao,et al."Effect of sulfolane on the morphology and chemical composition of the solid electrolyte interphase layer in lithium bis(oxalato) borate-based electrolyte".SURFACE AND INTERFACE ANALYSIS 46.1(2014):48-55.