Ionic liquid-based electrolyte with dual-functional LiDFOB additive toward high-performance LiMn2O4 batteries

doi:10.1007/s11581-016-1966-9

QIBEBT-IR > 仿生与固态能源系统研究组

	Ionic liquid-based electrolyte with dual-functional LiDFOB additive toward high-performance LiMn2O4 batteries
	Qin, Bingsheng 1; Zhang, Shu1 ; Hu, Zhenglin 1; Liu, Zhihong 1; Zhang, Junnan 2; Zhao, Jianghui 1; Xiong, Junwei 3; Cui, Guanglei1
	2017-06-01
发表期刊	IONICS
卷号	23 期号:6 页码:1399-1406
摘要	Manganese oxide-based cathodes are one of the most promising lithium-ion battery (LIB) cathode materials due to their cost-effectiveness, high discharge voltage plateau (above 4.0 V vs. Li/Li+), superior rate capability, and environmental benignity. However, these batteries using conventional LiPF6-based electrolytes suffer from Mn dissolution and poor cyclic capability at elevated temperature. In this paper, the ionic liquid (IL)-based electrolytes, consisting of 1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfon)imidate (PYR1,4-TFSI), propylene carbonate (PC), lithium bis(trifluoromethanesulfon)imide (LiTFSI), and lithium oxalyldifluoroborate (LiDFOB) additive, were explored for improving the high temperature performance of the LiMn2O4 batteries. It was demonstrated that LiTFSI-ILs/PC electrolyte associated with LiDFOB addition possessed less Mn dissolution and Al corrosion at the elevated temperature in LiMn2O4/Li batteries. Cyclic voltammetry and electrochemical impedance spectroscopy implied that this kind of electrolyte also contributed to the formation of a highly stable solid electrolyte interface (SEI), which was in accordance with the polarization measurement and the Li deposition morphology of the symmetric lithium metal cell, thus beneficial for improving the cycling performance of the LiMn2O4 batteries at the elevated temperature. Cyclic voltammetry and electrochemical impedance spectroscopy implied that the cells using this kind of electrolyte exhibited better interfacial stability, which was further verified by the polarization measurement and the Li deposition morphology of the symmetric lithium metal cell, thus beneficial for improving the cycling performance of the LiMn2O4 batteries at the elevated temperature. These unique characteristics would endow this kind of electrolyte a very promising candidate for the manganese oxide-based batteries.
文章类型	Article
关键词	Ionic Liquid-based Electrolyte Limn2o4 Batteries Dual-functional Additive Solid Electrolyte Interface
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1007/s11581-016-1966-9
关键词[WOS]	LITHIUM SECONDARY BATTERIES ; ELECTRICAL ENERGY-STORAGE ; THERMAL-STABILITY ; ELECTROCHEMICAL IMPEDANCE ; RECHARGEABLE BATTERIES ; LINI0.5MN1.5O4 SPINEL ; ELEVATED-TEMPERATURES ; POLYMER ELECTROLYTE ; CATHODE MATERIALS ; GRAPHITE
收录类别	SCI
语种	英语
WOS研究方向	Chemistry ; Electrochemistry ; Physics
项目资助者	National Program on the National High Technology Research and Development Program of China (863 program)(2013AA050905) ; Key Project of Natural Science Foundation of Shandong Province(ZR2015QZ01) ; "135" Projects Fund of CAS-QIBEBT Director Innovation Foundation ; Qingdao Institute of Bioenergy and Bioprocess Technology Director Technology Foundation
WOS类目	Chemistry, Physical ; Electrochemistry ; Physics, Condensed Matter
WOS记录号	WOS:000402066200007
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/9647
专题	仿生与固态能源系统研究组
作者单位	1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao Ind Energy Storage Res Inst, Qingdao 266101, Peoples R China 2.Shandong WINA Green Power Technol Co Ltd, Res Inst Technol, Weifang 262700, Peoples R China 3.Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Peoples R China
推荐引用方式 GB/T 7714	Qin, Bingsheng,Zhang, Shu,Hu, Zhenglin,et al. Ionic liquid-based electrolyte with dual-functional LiDFOB additive toward high-performance LiMn2O4 batteries[J]. IONICS,2017,23(6):1399-1406.
APA	Qin, Bingsheng.,Zhang, Shu.,Hu, Zhenglin.,Liu, Zhihong.,Zhang, Junnan.,...&Cui, Guanglei.(2017).Ionic liquid-based electrolyte with dual-functional LiDFOB additive toward high-performance LiMn2O4 batteries.IONICS,23(6),1399-1406.
MLA	Qin, Bingsheng,et al."Ionic liquid-based electrolyte with dual-functional LiDFOB additive toward high-performance LiMn2O4 batteries".IONICS 23.6(2017):1399-1406.