Boosting the cycling stability of hard carbon with NaODFB-based electrolyte at high temperature

doi:10.1016/j.mtchem.2022.100866

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Boosting the cycling stability of hard carbon with NaODFB-based electrolyte at high temperature
	Zhao, D.1,2,3; Lu, H.1,2; Li, S.1,2,3; Wang, P.1,2; Fan, X.2
刊名	Materials Today Chemistry
	2022-06-01
卷号	24
关键词	Carbon Cyclic voltammetry Metal ions Oxalic acid Seebeck effect Sodium-ion batteries Solid electrolytes Cycle stability Cycling stability Electrolyte formulation Hard carbon Highest temperature Interfacial film Optimisations Property Sodium difluoro(oxalate)borate Sodium ions
ISSN号	2468-5194
DOI	10.1016/j.mtchem.2022.100866
英文摘要	The optimization of electrolyte formulation and the resulting change in the properties of the solid electrolyte interfacial film (SEI) are the key to affecting the cycle stability of sodium ion batteries at high temperatures. Traditional sodium ion electrolytes are prone to decomposition at high temperatures, which leads to a rapid decline in battery performance. Herein, we use an effective strategy to construct a SEI film on hard carbon anodes by introducing self-developed synthetic sodium-difluoro(oxalate)borate (NaODFB)-based ethers electrolyte. This study aims to analyze the compatibility between NaODFB-based electrolyte and hard carbon by theoretical calculations and experimental analysis including Na/Cu cellsIn-suit EIS and cyclic voltammetry curves at different scan rates. The results indicate that the Na/HC cells with NaODFB-based electrolyte has excellent cycling stability at 55 °C. The battery delivers a high reversible capacity of 249.9 mAh/g at 100 mA/g due to the stable SEI riched in inorganic substances. This work provides guidance and ideas for the design of sodium-ion battery electrolyte at high temperatures in the future. © 2022 Elsevier Ltd
WOS研究方向	Chemistry ; Materials Science
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000820990100013
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/157955]
专题	石油化工学院电气工程与信息工程学院继续教育学院
作者单位	1.Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou; 730050, China; 2.School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou; 730050, China; 3.Gansu Engineering Laboratory of Electrolyte Material for Lithium-ion Battery, Baiyin; 730900, China
推荐引用方式 GB/T 7714	Zhao, D.,Lu, H.,Li, S.,et al. Boosting the cycling stability of hard carbon with NaODFB-based electrolyte at high temperature[J]. Materials Today Chemistry,2022,24.
APA	Zhao, D.,Lu, H.,Li, S.,Wang, P.,&Fan, X..(2022).Boosting the cycling stability of hard carbon with NaODFB-based electrolyte at high temperature.Materials Today Chemistry,24.
MLA	Zhao, D.,et al."Boosting the cycling stability of hard carbon with NaODFB-based electrolyte at high temperature".Materials Today Chemistry 24(2022).