Thermal stability of solid electrolyte interphase of lithium-ion batteries

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2018专题

	Thermal stability of solid electrolyte interphase of lithium-ion batteries
	Huang, Shiqiang; Cheong, Ling-Zhi; Wang, Deyu; Shen, Cai
刊名	APPLIED SURFACE SCIENCE
	2018
卷号	454 页码:61-67
关键词	In-situ Afm Atomic-force Microscopy Fluoroethylene Carbonate Direct Visualization Negative-electrode Silicon Anodes Graphite Anode Performance Interface Sei
英文摘要	Solid electrolyte interphase (SEI) is an electronically insulating and Li+-conducting layer formed on electrodes. It is still the most mysterious part of lithium ion batteries (LIBs). Understanding the nature of SEI is vital to suppress capacity loss, increase cycle life and improve safety of LIBs during cycling. Herein, we employ atomic force microscopy (AFM) technology, X-ray photoelectron spectroscopy (XPS) and Electrochemical Impedance Spectroscopy (EIS) to comprehensively study the evolution and thermal stability of SEI formed on highly oriented pyrolytic graphite (HOPG) surface in three type of electrolytes containing 1 M LiPF6 dissolved in a mixture of DMC/EC (1:1, V: V). Morphology, mechanical properties, chemical composition and resistance changes of SEI were systematic studied as a function of temperature. Our results show that both fluoroethylene carbonate (FEC) and lithium oxalyldifluoroborate (LiDFOB) additives can improve the thermal stability of SEI. This combined approach enables us to further understand the effects of temperature on SEI which will be helpful for designing of LIBs with enhanced performance.
学科主题	Materials Science
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/17184]
专题	2018专题
推荐引用方式 GB/T 7714	Huang, Shiqiang,Cheong, Ling-Zhi,Wang, Deyu,et al. Thermal stability of solid electrolyte interphase of lithium-ion batteries[J]. APPLIED SURFACE SCIENCE,2018,454:61-67.
APA	Huang, Shiqiang,Cheong, Ling-Zhi,Wang, Deyu,&Shen, Cai.(2018).Thermal stability of solid electrolyte interphase of lithium-ion batteries.APPLIED SURFACE SCIENCE,454,61-67.
MLA	Huang, Shiqiang,et al."Thermal stability of solid electrolyte interphase of lithium-ion batteries".APPLIED SURFACE SCIENCE 454(2018):61-67.