Mechanism of aluminum corrosion in LiFSI-based electrolyte at elevated temperatures

doi:10.1016/S1003-6326(21)65588-7

IR > 石油化工学院

	Mechanism of aluminum corrosion in LiFSI-based electrolyte at elevated temperatures
	LI, Chun-lei1 ; ZENG, Shuang-wei 1; WANG, Peng 1; LI, Zhao-juan 1; YANG, Li1 ; ZHAO, Dong-ni1 ; WANG, Jie 1; LIU, Hai-ning 2; LI, Shi-you1
	2021-05
发表期刊	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN	1003-6326
卷号	31 期号:5 页码:1439-1451
摘要	Lithium bis(fluorosulfonyl)imide (LiFSI) is a promising replacement for lithium hexafluorosphate due to its excellent properties. A solution to the corrosion of aluminum (Al) current collectors by LiFSI at elevated temperatures is essential. The mechanisms of Al corrosion in LiFSI-based electrolyte at 45 degrees C were studied with density functional theory calculations and spectroscopic investigations. It is found that the irregular, loose and unprotected AlF3 materials caused by the dissolution of co-generated Al(FSI)(3) can exacerbate Al corrosion with the increase of temperature. Lithium bis(oxalate)borate (LiBOB) can effectively inhibit the Al corrosion with a robust and protective interphase; this can be attributed to the interfacial interactions between the Al foil and electrolyte. Boron-containing compounds promote the change from AlF3 to LiF, which further reinforces interfacial stability. This work allows the design of an interface to Al foil using LiFSI salt in lithium-ion batteries.
关键词	lithium-ion batteries LiFSI-based electrolyte lithium bis(oxalate)borate (LiBOB) corrosion inhibition elevated temperatures interfacial film
DOI	10.1016/S1003-6326(21)65588-7
收录类别	EI ; SCOPUS ; SCIE ; CSCD
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000660035300007
出版者	ELSEVIER
EI入藏号	20212510535243
EI主题词	Boron compounds
EI分类号	531.2 Metallography - 535.1 Metal Rolling - 539.1 Metals Corrosion - 539.2 Corrosion Protection - 702 Electric Batteries and Fuel Cells - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 922.1 Probability Theory
来源库	WOS
引用统计	被引频次：13[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/148937
专题	石油化工学院马克思主义学院
通讯作者	LI, Shi-you
作者单位	1.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China; 2.Chinese Acad Sci, Qinghai Inst Salt Lake, 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	LI, Chun-lei,ZENG, Shuang-wei,WANG, Peng,et al. Mechanism of aluminum corrosion in LiFSI-based electrolyte at elevated temperatures[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2021,31(5):1439-1451.
APA	LI, Chun-lei.,ZENG, Shuang-wei.,WANG, Peng.,LI, Zhao-juan.,YANG, Li.,...&LI, Shi-you.(2021).Mechanism of aluminum corrosion in LiFSI-based electrolyte at elevated temperatures.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,31(5),1439-1451.
MLA	LI, Chun-lei,et al."Mechanism of aluminum corrosion in LiFSI-based electrolyte at elevated temperatures".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 31.5(2021):1439-1451.