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

doi:10.1002/sia.5347

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Effect of sulfolane on the morphology and chemical composition of the solid electrolyte interphase layer in lithium bis(oxalato)borate-based electrolyte
	Yu, Tao 2; Liu, Jinliang 2; Zhang, Hongming 2; Li, Shiyou 2; Cui, Xiaoling 2; Feng, Huixia 2; Zhao, Yangyu 2; Liu, Haining 1; Li, Faqiang 1
刊名	Surface and Interface Analysis
	2014
卷号	46 期号:1 页码:48-55
关键词	Anodes Carbonation Density functional theory Electrolytes Ethylene Fourier transform infrared spectroscopy Lithium compounds Lithium-ion batteries Morphology Oxalic acid Reduction Seebeck effect Solid-State Batteries Chemical compositions Electrochemical process Interface resistance Lithium bis(oxalate)borate Lithium bis(oxalato)borate Solid electrolyte interphase Solid electrolyte interphase layer (SEI) Sulfolane
ISSN号	01422421
DOI	10.1002/sia.5347
英文摘要	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 0.7 mol l-1 LiBOB-ethylene carbonate/ethyl methyl carbonate (EMC) (1: 1, v/v) electrolyte, the cell with 0.7 mol l-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 Li 2SO3 and LiO2S(CH2) 8SO2Li 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 © 2013 John Wiley & Sons, Ltd.
WOS研究方向	Chemistry
语种	英语
出版者	John Wiley and Sons Ltd, Southern Gate, Chichester, West Sussex, PO19 8SQ, United Kingdom
WOS记录号	WOS:000328071600008
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113604]
专题	石油化工学院教务处（创新创业学院）
作者单位	1.Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, China 2.College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, 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.