气候变化领域集成服务门户(CCPortal): A flame-retardant polymer electrolyte for high performance lithium metal batteries with an expanded operation temperature

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DOI	10.1039/d1ee00049g
	A flame-retardant polymer electrolyte for high performance lithium metal batteries with an expanded operation temperature
	Xiang J.; Zhang Y.; Zhang B.; Yuan L.; Liu X.; Cheng Z.; Yang Y.; Zhang X.; Li Z.; Shen Y.; Jiang J.; Huang Y.
发表日期	2021
ISSN	17545692
起始页码	3510
结束页码	3521
卷号	14 期号:6
英文摘要	Polymer electrolytes with high ionic conductivity, good interfacial stability and safety are in urgent demand for practical rechargeable lithium metal batteries (LMBs). Herein we propose a novel flame-retardant polymerized 1,3-dioxolane electrolyte (PDE), which isin situformedviaa multifunctional tris(pentafluorophenyl)borane (TB) additive. Thein situformed PDE not only affords an integrated battery structure with stabilized electrode-electrolyte interface, but also achieves good flame retardancy, significantly expanded operating temperature limit and improved oxidative stability. Moreover, TB also contributes to a highly stable LiF-rich solid electrolyte interphase (SEI). In addition, the PDE has good compatibility with electrodes and polypropylene (PP) separator, hardly increasing the thickness of the battery, and the amount of additive TB is small, so there is no loss of gravimetric or volumetric energy density due to the polymerization. Based on thein situformed PDE, Li-S batteries without the addition of LiNO3demonstrate excellent cycle stability (>500 cycles) and a wide operating temperature (−20 to 50 °C); the high voltage Li-LiNi0.6Co0.2Mn0.2O2and Li-LiFePO4batteries both exhibit excellent electrochemical performance (>1200 cycles). In addition, the ultrasonic imaging technique developed by our group also demonstrates no gas generation inside pouch cells using PDE. This work provides a facile and practical approach to design a highly stable polymer electrolyte for high performance LMBs. © The Royal Society of Chemistry 2021.
英文关键词	Additives; Electrodes; Lithium batteries; Lithium compounds; Lithium sulfur batteries; Nitrogen compounds; Polypropylenes; Solid electrolytes; Temperature; Ultrasonic imaging; Electrochemical performance; Electrode-electrolyte interfaces; Flame retardant polymers; Interfacial stabilities; Operating temperature; Solid electrolyte interphase; Tris(pentafluorophenyl) borane; Volumetric energy densities; Polyelectrolytes; electrochemistry; electrolyte; equipment component; flame retardant; fuel cell; performance assessment; polymer; polymerization; ultrasonics
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190642
作者单位	State Key Laboratory of Material Processing and Die and Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China; School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
推荐引用方式 GB/T 7714	Xiang J.,Zhang Y.,Zhang B.,et al. A flame-retardant polymer electrolyte for high performance lithium metal batteries with an expanded operation temperature[J],2021,14(6).
APA	Xiang J..,Zhang Y..,Zhang B..,Yuan L..,Liu X..,...&Huang Y..(2021).A flame-retardant polymer electrolyte for high performance lithium metal batteries with an expanded operation temperature.Energy & Environmental Science,14(6).
MLA	Xiang J.,et al."A flame-retardant polymer electrolyte for high performance lithium metal batteries with an expanded operation temperature".Energy & Environmental Science 14.6(2021).