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

IR > 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, Shiyou1,2 ; Yang, Li1,2 ; Wang, Peng 1,2; Li, Zhaojuan 1,2; Li, Wenbo 1,2; Liu, Haining 3; Cui, Xiaoling1,2
	2020-09-30
发表期刊	Journal of Power Sources
ISSN	03787753
卷号	471
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.
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
DOI	10.1016/j.jpowsour.2020.228426
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
WOS类目	Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号	WOS:000551511800017
出版者	Elsevier B.V.
EI入藏号	20202708884301
EI主题词	Boron compounds
EI分类号	801.4 Physical Chemistry - 802.2 Chemical Reactions - 803 Chemical Agents and Basic Industrial Chemicals - 804.1 Organic Compounds
来源库	Compendex
分类代码	801.4 Physical Chemistry - 802.2 Chemical Reactions - 803 Chemical Agents and Basic Industrial Chemicals - 804.1 Organic Compounds
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/115713
专题	石油化工学院马克思主义学院
通讯作者	Cui, Xiaoling
作者单位	1.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China; 2.Gansu Engn Lab Cathode Mat Lithium Ion Battery, Lanzhou 730050, Peoples R China; 3.Chinese Acad Sci, Qinghai Inst Salt Lake, CAS Key Lab Comprehens & Highly Efficient Utiliza, Xininig 810008, Peoples R China
第一作者单位	石油化工学院
通讯作者单位	石油化工学院
第一作者的第一单位	石油化工学院
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).