Targeted research on the single role of lithium Bis(oxalate)borate in the film-forming process through a novel lithium salt-free electrolyte system

doi:10.1016/j.jpowsour.2020.228426

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Targeted research on the single role of lithium Bis(oxalate)borate in the film-forming process through a novel lithium salt-free electrolyte system
	Li, Shiyou 2,3; Yang, Li 2,3; Wang, Peng 2,3; Li, Zhaojuan 2,3; Li, Wenbo 2,3; Liu, Haining 1; Cui, Xiaoling 2,3
刊名	Journal of Power Sources
	2020-09-30
卷号	471
关键词	Lithium compounds Oxalic acid Photoelectron spectroscopy Quantum chemistry Reduction Scanning electron microscopy Solid electrolytes Attenuated total reflectance Electrochemical impedance spectra Film forming mechanism Lithium bis(oxalate)borate Quantum chemical calculations Solid electrolyte interphase film Surface film formations X ray photo-electron diffraction
ISSN号	03787753
DOI	10.1016/j.jpowsour.2020.228426
英文摘要	A blank comparison group of lithium salt-free electrolyte system, replacing the lithium salt of electrolyte with a redox shuttle agent, is constructed to give targeted research on the single role of lithium bis(oxalate)borate (LiBOB) salt, especially of bis(oxalate)borate anions (BOB−) in the film-forming process. By combining and comparing all available studies, such as attenuated total reflectance (IR-ATR), X-Ray photoelectron diffraction spectrum (XPS), electrochemical impedance spectrum (EIS), scanning electron microscopy (SEM) tests and quantum chemical calculation, the formation mechanism of the solid electrolyte interphase (SEI) film is proposed. Results reveal that the prior reduction of BOB− anions can postpone the reduction potential and hinder the decomposition rate of carbonate solvents, but promote the formation of a dense, conductive and effective SEI film. This work provides a novel way to investigate the film-forming mechanism and has guiding significance for revealing the effect of other kinds of lithium salts on the surface film formation. © 2020 Elsevier B.V.
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	Elsevier B.V.
WOS记录号	WOS:000551511800017
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115713]
专题	石油化工学院马克思主义学院
作者单位	1.CAS Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lake, Chinese Academy of Sciences, Xininig; 810008, China 2.College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou; 730050, China; 3.Gansu Engineering Laboratory of Cathode Material for Lithium-ion Battery, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Li, Shiyou,Yang, Li,Wang, Peng,et al. Targeted research on the single role of lithium Bis(oxalate)borate in the film-forming process through a novel lithium salt-free electrolyte system[J]. Journal of Power Sources,2020,471.
APA	Li, Shiyou.,Yang, Li.,Wang, Peng.,Li, Zhaojuan.,Li, Wenbo.,...&Cui, Xiaoling.(2020).Targeted research on the single role of lithium Bis(oxalate)borate in the film-forming process through a novel lithium salt-free electrolyte system.Journal of Power Sources,471.
MLA	Li, Shiyou,et al."Targeted research on the single role of lithium Bis(oxalate)borate in the film-forming process through a novel lithium salt-free electrolyte system".Journal of Power Sources 471(2020).