Designing a Zn(BF4)2-Based Ionic Liquid Electrolyte to Realize Superior Energy Density in a Carbon-Based Zinc-Ion Hybrid Capacitor

doi:10.1002/celc.202100003

CORC > 兰州理工大学 > 兰州理工大学

	Designing a Zn(BF4)2-Based Ionic Liquid Electrolyte to Realize Superior Energy Density in a Carbon-Based Zinc-Ion Hybrid Capacitor
	Zhang, Li 1,2; Wang, Gaowei 1,2; Feng, Jianze 1; Ma, Quanhu 1,2; Liu, Ziqiang 1,2; Yan, Xingbin 1,3
刊名	ChemElectroChem
	2021-04-01
卷号	8 期号:7 页码:1289-1297
关键词	Carbon Charging (batteries) Electrolytic capacitors Energy storage Ionic liquids Supercapacitor Zinc Capacity retention Charging/discharging Comprehensive performance Coulombic efficiency Cycling stability Energy storage technologies High energy densities Ionic liquid electrolytes
ISSN号	2196-0216
DOI	10.1002/celc.202100003
英文摘要	Carbon-based zinc-ion hybrid capacitors (C-ZIHCs), inheriting the merits from supercapacitors and batteries, exhibit promise in energy-storage technologies. However, unsatisfactory energy density still hinders their practical applications for most reported C-ZIHCs. We report a novel Zn(BF4)2/[EMIM]BF4 electrolyte to construct C-ZIHCs with a high energy density. The Zn(BF4)2/[EMIM]BF4 electrolyte features high reductive/oxidative stability, which guarantees no significant dendrites and side reactions to corrode the Zn anode during the charging/discharging process, and achieves ultrafast Zn plating/stripping with a high coulombic efficiency (>99 %) and unprecedented cycling stability (over 1200 h). By virtue of the excellent properties of the electrolyte, C-ZIHCs is built to exhibit a high average output voltage (1.9 V), a high energy/power density (220 Wh kg−1/9.5 KW kg−1), and a long cycle life (95 % capacity retention after 20000 cycles). Herein, we report the use of Zn salt-based ionic liquid as an electrolyte to construct C-ZIHCs, which provides a new opportunity for the development of C-ZIHCs with excellent comprehensive performance. © 2021 Wiley-VCH GmbH
WOS研究方向	Electrochemistry
语种	英语
出版者	John Wiley and Sons Inc
WOS记录号	WOS:000619541400001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150941]
专题	兰州理工大学
作者单位	1.Laboratory of Clean Energy Chemistry and Materials State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics Chinese Academy of Sciences, Lanzhou; 730000, China; 2.Department of Physics School of Science, Lanzhou University of Technology, Lanzhou; 730050, China; 3.Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian; 116000, China
推荐引用方式 GB/T 7714	Zhang, Li,Wang, Gaowei,Feng, Jianze,et al. Designing a Zn(BF4)2-Based Ionic Liquid Electrolyte to Realize Superior Energy Density in a Carbon-Based Zinc-Ion Hybrid Capacitor[J]. ChemElectroChem,2021,8(7):1289-1297.
APA	Zhang, Li,Wang, Gaowei,Feng, Jianze,Ma, Quanhu,Liu, Ziqiang,&Yan, Xingbin.(2021).Designing a Zn(BF4)2-Based Ionic Liquid Electrolyte to Realize Superior Energy Density in a Carbon-Based Zinc-Ion Hybrid Capacitor.ChemElectroChem,8(7),1289-1297.
MLA	Zhang, Li,et al."Designing a Zn(BF4)2-Based Ionic Liquid Electrolyte to Realize Superior Energy Density in a Carbon-Based Zinc-Ion Hybrid Capacitor".ChemElectroChem 8.7(2021):1289-1297.