Hybrid gel polymer electrolyte based on 1-methyl-1-Propylpyrrolidinium Bis(Trifluoromethanesulfonyl) imide for flexible and shape-variant lithium secondary batteries

doi:10.1016/j.memsci.2020.119018

	Hybrid gel polymer electrolyte based on 1-methyl-1-Propylpyrrolidinium Bis(Trifluoromethanesulfonyl) imide for flexible and shape-variant lithium secondary batteries
	Ravi, Muchakayala 1; Kim, Sanghoon 2; Ran, Fen3,4 ; Kim, Dong Soo 5; Lee, Yong Min 6; Ryou, Myung-Hyun 1
	2021-03-01
发表期刊	Journal of Membrane Science
ISSN	03767388
卷号	621
摘要	Lithium ion conducting polymer electrolytes with broad electrochemical stability, good mechanical strength, high thermal stability, and easy processability are necessary for all-solid-state and shape-variant lithium secondary batteries. Hybrid gel polymer electrolytes incorporating an ionic liquid have been attracting attention for application in solid-state lithium secondary batteries owing to their superior thermal properties compared to conventional electrolyte systems. In this study, a variety of polymer electrolytes based on poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP), lithium bis(trifluoromethanesulfonyl) imide (LiTFSI), and 1-methyl-1-propylpyrrolidinium bis(trifluoromethanesulfonyl) imide (PMPyrrTFSI) are prepared, and an in-depth study of their composition dependence and electrical properties is conducted to develop the optimum composition. The composition dependent ionic conductivity of the polymer electrolyte increases with increasing LiTFSI and PMPyrrTFSI and reaches a maximum value of 6.93 × 10−4 S cm−1 at room temperature (25 °C) when the polymer electrolyte contains 30 wt% LiTFSI and 60 wt% PMPyrrTFSI. In addition, the optimized gel polymer electrolytes consisting of PVdF-HFP/LiTFSI/PMPyrrTFSI (70/30/60 by weight, i.e., 70PVdF-HFP/30LiTFSI/60PMPyrrTFSI) look transparent and exhibit high mechanical stability and excellent thermal stability up to 420 °C. Finally, the lithium iron phosphate (LiFePO4)/lithium metal solid-state cells coupled with the optimized gel polymer electrolyte are prepared, and their discharge characteristics are studied. The 70PVdF-HFP/30LiTFSI/60PMPyrrTFSI based solid-state cell delivered a maximum discharge capacity of 151 mAh g−1 at room temperature with a good rate capability and cycling performance. © 2020 Elsevier B.V.
关键词	Conducting polymers Fluorine compounds Ionic liquids Iron compounds Lithium compounds Lithium-ion batteries Mechanical stability Solid electrolytes Solid-State Batteries Thermodynamic stability Bis(trifluoromethane sulfonyl)imide Composition dependence Discharge characteristics Electrochemical stabilities Gel polymer electrolytes Lithium iron phosphates Lithium secondary batteries Poly(vinylidene fluoride-co-hexafluoropropylene)
DOI	10.1016/j.memsci.2020.119018
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Engineering ; Polymer Science
WOS类目	Engineering, Chemical ; Polymer Science
WOS记录号	WOS:000609149800005
出版者	Elsevier B.V.
EI入藏号	20210109725234
EI主题词	Polyelectrolytes
EI分类号	641.1 Thermodynamics - 708.2 Conducting Materials - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 815.1.1 Organic Polymers
来源库	Compendex
引用统计	被引频次：28[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/147175
专题	材料科学与工程学院
通讯作者	Lee, Yong Min; Ryou, Myung-Hyun
作者单位	1.Hanbat Natl Univ, Dept Chem & Biol Engn, 125 Dongseo Daero, Daejeon 34158, South Korea; 2.Chonnam Natl Univ, Dept Mech Design Engn, 50 Daehak Ro, Yeosu 59626, Chonnam, South Korea; 3.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730500, Peoples R China; 4.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730500, Peoples R China; 5.Hanbat Natl Univ, Dept Creat Convergence Engn, Daejeon 34158, South Korea; 6.Daegu Gyeongbuk Inst Sci & Technol DGIST, Dept Energy Sci & Engn, 333 Techno Jungang Daero, Dalseong Gun 42988, Daegu, South Korea
推荐引用方式 GB/T 7714	Ravi, Muchakayala,Kim, Sanghoon,Ran, Fen,et al. Hybrid gel polymer electrolyte based on 1-methyl-1-Propylpyrrolidinium Bis(Trifluoromethanesulfonyl) imide for flexible and shape-variant lithium secondary batteries[J]. Journal of Membrane Science,2021,621.
APA	Ravi, Muchakayala,Kim, Sanghoon,Ran, Fen,Kim, Dong Soo,Lee, Yong Min,&Ryou, Myung-Hyun.(2021).Hybrid gel polymer electrolyte based on 1-methyl-1-Propylpyrrolidinium Bis(Trifluoromethanesulfonyl) imide for flexible and shape-variant lithium secondary batteries.Journal of Membrane Science,621.
MLA	Ravi, Muchakayala,et al."Hybrid gel polymer electrolyte based on 1-methyl-1-Propylpyrrolidinium Bis(Trifluoromethanesulfonyl) imide for flexible and shape-variant lithium secondary batteries".Journal of Membrane Science 621(2021).