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

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

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	Mechanism of aluminum corrosion in LiFSI-based electrolyte at elevated temperatures
	LI, Chun-lei; ZENG, Shuang-wei; WANG, Peng; LI, Zhao-juan; YANG, Li; ZHAO, Dong-ni; WANG, Jie; LIU, Hai-ning; LI, Shi-you
第一作者	LI, Chun-lei
	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.
DOI	10.1016/S1003-6326(21)65588-7
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/34342
专题	盐湖资源与化学实验室
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.

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