气候变化领域集成服务门户(CCPortal): FSI-inspired solvent and "full fluorosulfonyl" electrolyte for 4 v class lithium-metal batteries

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DOI	10.1039/c9ee02538c
	FSI-inspired solvent and "full fluorosulfonyl" electrolyte for 4 v class lithium-metal batteries
	Xue W.; Shi Z.; Huang M.; Feng S.; Wang C.; Wang F.; Lopez J.; Qiao B.; Xu G.; Zhang W.; Dong Y.; Gao R.; Shao-Horn Y.; Johnson J.A.; Li J.
发表日期	2020
ISSN	1754-5692
起始页码	212
结束页码	220
卷号	13 期号:1
英文摘要	High-voltage rechargeable lithium-metal batteries (LMBs) require electrolytes that are compatible with both the Li metal anode (LMA) and the metal-oxide cathode. Herein, by imitating the fluorosulfonyl imide group from a well-known LMA-compatible salt, lithium bis(fluorosulfonyl) imide (LiFSI), we come up with an organic solvent dimethylsulfamoyl fluoride (FSO2NC2H6), a fluorosulfonamide (FSA) with two methyl substituents, to develop a new "full fluorosulfonyl" (FFS) electrolyte. Remarkably, it enables a highly reversible LMA with an excellent initial coulombic efficiency (CE) ∼91%, and rapidly approaching 99% within only 10 cycles, with average CE outperforming the well-known LMA-compatible fluoroethylene carbonate (FEC)-based electrolyte. Furthermore, benefitting from its high anodic stability against the oxidative LiNi0.6Mn0.2Co0.2O2 (NMC622) and LiMn2O4 (LMO) surfaces, the LiNMC622 cell retains 89% of its original capacity after 200 cycles using a limited Li excess anode. This electrolyte design strategy opens a new avenue for exploring new medium-concentration organic electrolytes for 4 V class lithium-metal batteries (LMBs). © 2020 The Royal Society of Chemistry.
语种	英语
scopus关键词	Anodes; Electrolytes; Fluorine compounds; Lithium batteries; Lithium compounds; Manganese compounds; Nickel compounds; Anodic stabilities; Bis(fluorosulfonyl)imide; Design strategies; Fluoroethylene carbonates; Initial Coulombic efficiency; Lithium metals; Metal oxide cathodes; Organic electrolyte; Lithium; electrolyte; energy efficiency; fuel cell; solvent
来源期刊	Energy and Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162873
作者单位	Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
推荐引用方式 GB/T 7714	Xue W.,Shi Z.,Huang M.,et al. FSI-inspired solvent and "full fluorosulfonyl" electrolyte for 4 v class lithium-metal batteries[J],2020,13(1).
APA	Xue W..,Shi Z..,Huang M..,Feng S..,Wang C..,...&Li J..(2020).FSI-inspired solvent and "full fluorosulfonyl" electrolyte for 4 v class lithium-metal batteries.Energy and Environmental Science,13(1).
MLA	Xue W.,et al."FSI-inspired solvent and "full fluorosulfonyl" electrolyte for 4 v class lithium-metal batteries".Energy and Environmental Science 13.1(2020).