Tailoring interfacial architecture of high-voltage cathode with lithium difluoro(bisoxalato) phosphate for high energy density battery

doi:10.1016/j.jpowsour.2020.228006

IR > 石油化工学院

	Tailoring interfacial architecture of high-voltage cathode with lithium difluoro(bisoxalato) phosphate for high energy density battery
	Zhao, Dongni1 ; Wang, Jie 1; Lu, Hongli 1; Wang, Peng 1; Liu, Haining 3; Li, Shiyou1,2
	2020-04-30
发表期刊	Journal of Power Sources
ISSN	03787753
卷号	456
摘要	The development of high energy density and power density battery is of increasing importance for new generation energy storage system. However, interface instability between cathode and electrolyte remains a challenge for taking advantage of battery consistency. The use of commercial LiPF6-based electrolyte still has the limitations in optimizing interface stability to reduce material performance degradation. Here, self-developed synthetic lithium difluorobis (oxalato) phosphate (LiDFBOP) additive acts as "interface modifier" is adopted in the traditional electrolyte system. The resulting optimized electrolyte formulation exhibits improved electrochemical properties and self-discharge inhibition at high temperatures. Time-of-flight secondary ion mass spectrometry (TOF-SIMS) and density functional theory (DFT) calculation is applied to detect the LiDFBOP effect mechanism and distribution of main components of the interface film. It can be demonstrated that the participation of LiDFBOP can lead to a change in the composition of the interface film, which increases the number of components that facilitate the transport of lithium ions. The analytical means for additive effect obtained from this work offer a new opportunity to make an in-depth analysis of film components between cathode and electrolyte. © 2020 Elsevier B.V.
关键词	Additives Cathodes Electric discharges Electrolytes Ions Lithium-ion batteries Polymer blends Secondary emission Secondary ion mass spectrometry Electrode-electrolyte interfaces Electrolyte formulation Energy storage systems Functional additives High voltage cathode High-energy density batteries Interfacial architecture Time of flight secondary ion mass spectrometry
DOI	10.1016/j.jpowsour.2020.228006
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:000523640600015
出版者	Elsevier B.V., Netherlands
EI入藏号	20201108305797
EI主题词	Density functional theory
EI分类号	701.1 Electricity: Basic Concepts and Phenomena ; 803 Chemical Agents and Basic Industrial Chemicals ; 817.1 Polymer Products ; 922.1 Probability Theory
来源库	Compendex
分类代码	701.1 Electricity: Basic Concepts and Phenomena - 803 Chemical Agents and Basic Industrial Chemicals - 817.1 Polymer Products - 922.1 Probability Theory
引用统计	被引频次：34[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/115562
专题	石油化工学院
通讯作者	Li, Shiyou
作者单位	1.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China; 2.Gansu Engn Lab Electrolyte Mat Lithium Ion Batter, Lanzhou 730050, Peoples R China; 3.Chinese Acad Sci, Qinghai Inst Salt Lakes, CAS Key Lab Comprehens & Highly Efficient Utiliza, Xining 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	Zhao, Dongni,Wang, Jie,Lu, Hongli,et al. Tailoring interfacial architecture of high-voltage cathode with lithium difluoro(bisoxalato) phosphate for high energy density battery[J]. Journal of Power Sources,2020,456.
APA	Zhao, Dongni,Wang, Jie,Lu, Hongli,Wang, Peng,Liu, Haining,&Li, Shiyou.(2020).Tailoring interfacial architecture of high-voltage cathode with lithium difluoro(bisoxalato) phosphate for high energy density battery.Journal of Power Sources,456.
MLA	Zhao, Dongni,et al."Tailoring interfacial architecture of high-voltage cathode with lithium difluoro(bisoxalato) phosphate for high energy density battery".Journal of Power Sources 456(2020).