Effects of soluble products decomposed from chelato-borate additives on formation of solid electrolyte interface layers

doi:10.1016/j.jpowsour.2022.231451

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	Effects of soluble products decomposed from chelato-borate additives on formation of solid electrolyte interface layers
	Wang, Peng 1,2; Cui, Xiaoling 1,2; Zhao, Dongni 1,2; Yan, De 3; Ding, Hao 1,2; Dong, Hong 1,2; Wang, Jie 1,2; Wu, Shumin 1,2; Li, Shiyou 1,2
刊名	Journal of Power Sources
	2022-07-01
卷号	535
关键词	Electrodes Ethylene Lithium compounds Lithium-ion batteries Negative ions Seebeck effect Solid electrolytes Solid-State Batteries Electrode surfaces Film formation mechanism Film formations Formation mechanism Interface layer Oxalato Salt additive Solid electrolyte interfaces Solid products Soluble product
ISSN号	0378-7753
DOI	10.1016/j.jpowsour.2022.231451
英文摘要	The prevailing account attributes the positive effects of boron-based additives on solid electrolyte interface (SEI) layers to its solid products by prior decomposition. However, this study proves the BOF2− anion, a soluble product of film formation additive of lithium difluoro(oxalato)borate, plays a crucial role in improving the SEI layer. Specifically, BOF2− suppresses the excessive decomposition of salt anions by aggregating on the electrode surface. Meanwhile, it catalyzes the reduction of ethylene carbonate, leading to improving the stability of the interface. In the end, ultrasound shaking is used to generate more BOF2− anion and increase the cycle performance of cells at a high rate as excepted. This work helps to understand the effects of soluble products on the SEI forming process and provides new insights for improving the stability of electrode electrolyte interfaces. © 2022 Elsevier B.V.
语种	英语
出版者	Elsevier B.V.
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158507]
专题	石油化工学院
作者单位	1.College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou; 730050, China; 3.School of Materials and Energy, Lanzhou University, Lanzhou; 730000, China
推荐引用方式 GB/T 7714	Wang, Peng,Cui, Xiaoling,Zhao, Dongni,et al. Effects of soluble products decomposed from chelato-borate additives on formation of solid electrolyte interface layers[J]. Journal of Power Sources,2022,535.
APA	Wang, Peng.,Cui, Xiaoling.,Zhao, Dongni.,Yan, De.,Ding, Hao.,...&Li, Shiyou.(2022).Effects of soluble products decomposed from chelato-borate additives on formation of solid electrolyte interface layers.Journal of Power Sources,535.
MLA	Wang, Peng,et al."Effects of soluble products decomposed from chelato-borate additives on formation of solid electrolyte interface layers".Journal of Power Sources 535(2022).