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

doi:10.1016/j.mtchem.2022.100866

	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.1
	2022-06
发表期刊	Materials Today Chemistry
ISSN	2468-5194
卷号	24
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
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
DOI	10.1016/j.mtchem.2022.100866
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Multidisciplinary ; Materials Science, Multidisciplinary
WOS记录号	WOS:000820990100013
出版者	Elsevier Ltd
EI入藏号	20221311851115
EI主题词	Ethers
EI分类号	531.1 Metallurgy ; 701.1 Electricity: Basic Concepts and Phenomena ; 702.1.2 Secondary Batteries ; 801.4.1 Electrochemistry ; 803 Chemical Agents and Basic Industrial Chemicals ; 804 Chemical Products Generally ; 804.1 Organic Compounds
来源库	WOS
引用统计	被引频次：6[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/157955
专题	电气工程与信息工程学院石油化工学院继续教育学院
通讯作者	Zhao, D.
作者单位	1.Lanzhou Univ Technol, Sch Petrochem Technol, Lanzhou 730050, Peoples R China; 2.Key Lab Low Carbon Energy & Chem Engn Gansu Prov, Lanzhou 730050, Peoples R China; 3.Gansu Engn Lab Electrolyte Mat Lithiumion Battery, Baiyin 730900, Peoples R China
第一作者单位	兰州理工大学
通讯作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
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).