Adjusting the solvation structure with tris(trimethylsilyl)borate additive to improve the performance of LNCM half cells

doi:10.1016/j.jechem.2021.09.022

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Adjusting the solvation structure with tris(trimethylsilyl)borate additive to improve the performance of LNCM half cells
	Wang, Jie 1,2,3; Dong, Hong 1,2,3; Wang, Peng 1,2,3; Fu, Xiao-Lan 1,2,3; Zhang, Ning-Shuang 1,2,3; Zhao, Dong-Ni 1,2,3; Li, Shi-You 1,2,3; Cui, Xiao-Ling 1,2,3
刊名	JOURNAL OF ENERGY CHEMISTRY
	2022-04-01
卷号	67 页码:55-64
关键词	Lithium-ion battery Solvation structure Tris(trimethylsilyl)borate Si-containing additive LiNi0.8Co0.1Mn0.1O2 Cathode electrolyte interface film
ISSN号	2095-4956
DOI	10.1016/j.jechem.2021.09.022
英文摘要	Tris(trimethylsilyl)borate (TMSB) has been intensively studied to improve the performances of lithium-ion batteries. However, it is still an interesting issue needed to be resolved for the research on the Li+ solvation structure affected by TMSB additive. Herein, the electrochemical tests, quantum chemistry calculations, potential-resolved in-situ electrochemical impedance spectroscopy measurements and surface analyses were used to explore the effects of Li+ solvation structure with TMSB additive on the formation of the cathode electrolyte interface (CEI) film in LiNi0.8Co0.1Mn0.1O2/Li half cells. The results reveal that the TMSB additive is easy to complex with Li+ ion, thus weaken the intermolecular force between Li+ ions and ethylene carbonate solvent, which is benefit for the cycle performance. Besides, the changed Li+ solvation structure results in a thin and dense CEI film containing compounds with Si-O and B-O bonds which is favorable to the transfer of Li+ ions. As a result, the performances of the LNCM811/Li half cells are effectively improved. This research provides a new idea to construct a high-performance CEI film by adjusting the Li+ solvation structures. (C) 2021 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000721496800007
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/154770]
专题	石油化工学院
作者单位	1.Lanzhou Univ Technol, Sch Petrochem Technol, Lanzhou 730050, Gansu, Peoples R China; 2.Gansu Key Lab Low Carbon Energy & Chem Engn, Lanzhou 730050, Gansu, Peoples R China; 3.Gansu Engn Lab Electrolyte Mat Lithium Ion Batter, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jie,Dong, Hong,Wang, Peng,et al. Adjusting the solvation structure with tris(trimethylsilyl)borate additive to improve the performance of LNCM half cells[J]. JOURNAL OF ENERGY CHEMISTRY,2022,67:55-64.
APA	Wang, Jie.,Dong, Hong.,Wang, Peng.,Fu, Xiao-Lan.,Zhang, Ning-Shuang.,...&Cui, Xiao-Ling.(2022).Adjusting the solvation structure with tris(trimethylsilyl)borate additive to improve the performance of LNCM half cells.JOURNAL OF ENERGY CHEMISTRY,67,55-64.
MLA	Wang, Jie,et al."Adjusting the solvation structure with tris(trimethylsilyl)borate additive to improve the performance of LNCM half cells".JOURNAL OF ENERGY CHEMISTRY 67(2022):55-64.