Influences of Additives on the Formation of a Solid Electrolyte Interphase on MnO Electrode Studied by Atomic Force Microscopy and Force Spectroscopy

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	Influences of Additives on the Formation of a Solid Electrolyte Interphase on MnO Electrode Studied by Atomic Force Microscopy and Force Spectroscopy
	Zhang, J ; Yang, XC ; Wang, R ; Dong, WL ; Lu, W ; Wu, XD ; Wang, XP ; Li, H ; Chen, LW
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2014
卷号	118 期号:36 页码:20756
ISSN号	1932-7447
通讯作者	Lu, W (reprint author), Chinese Acad Sci, Suzhou Inst Nanotech & NanoBion, I Lab, Suzhou 215123, Jiangsu, Peoples R China.
中文摘要	The solid electrolyte interphase (SEI) that forms on electrodes largely defines the performances of lithium ion batteries (LIBs), such as cycling performance, shelf life, and safety. Additives in the electrolyte can modify the properties of the SEI and thus efficiently improve the performances of LIBs. However, the effects of additives on the mechanical properties, structure, and stability of the SEI have rarely been studied directly. In this paper, we report the influence of vinylene carbonate (VC) and lithium bis(oxalate)borate (LiBOB) additives on the mechanical properties of SEI films formed on MnO electrodes using atomic force microscopy (AFM) and force spectroscopy. The results show that the SEI formed from VC additive is thick and soft and partially decomposes upon charging. LiBOB forms thin, stiff, and electrochemically stable SEI films, but the stiff SEI may not be favorable for adapting the volume change of the electrodes. The VC and LiBOB mixed additive combines the advantages of the two components and produces stable SEI with moderate thickness and stiffness. This work also demonstrates that the AFM-force spectroscopy method is effective in investigating the structure and mechanical properties of SEI films.
资助信息	Strategic Priority Research Program of the CAS [XDA09010600]; National Basic Research Program of China [2010CB934700]; National Natural Science Foundation of China [21273273, 21103222]; Sci. & Tech. Project of Suzhou [ZXJ2012002]; CAS; Jiangsu Provincial Natural Science Foundation [BK20130006]
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59245]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Zhang, J,Yang, XC,Wang, R,et al. Influences of Additives on the Formation of a Solid Electrolyte Interphase on MnO Electrode Studied by Atomic Force Microscopy and Force Spectroscopy[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2014,118(36):20756.
APA	Zhang, J.,Yang, XC.,Wang, R.,Dong, WL.,Lu, W.,...&Chen, LW.(2014).Influences of Additives on the Formation of a Solid Electrolyte Interphase on MnO Electrode Studied by Atomic Force Microscopy and Force Spectroscopy.JOURNAL OF PHYSICAL CHEMISTRY C,118(36),20756.
MLA	Zhang, J,et al."Influences of Additives on the Formation of a Solid Electrolyte Interphase on MnO Electrode Studied by Atomic Force Microscopy and Force Spectroscopy".JOURNAL OF PHYSICAL CHEMISTRY C 118.36(2014):20756.