Nickel Fluoride Nanorods as Anode Materials for Li-Ion Hybrid Capacitors

doi:10.1021/acsanm.1c02140

	Nickel Fluoride Nanorods as Anode Materials for Li-Ion Hybrid Capacitors
	Jiao, Ai-Jun 2; Gao, Jian-Fei 2; He, Zheng-Hua 2; Hou, Jing-Feng 2; Kong, Ling-Bin 1,2
刊名	ACS APPLIED NANO MATERIALS
	2021-11-26
卷号	4 期号:11 页码:11601-11610
关键词	nickel fluoride nanorod anode cyclic stability kinetics Li-ion hybrid capacitors
DOI	10.1021/acsanm.1c02140
英文摘要	Lithium-ion hybrid capacitors (LIHCs) are considered as promising energy storage devices due to their high energy density of lithium-ion batteries and excellent power density of supercapacitors. The electrode material is the key to the performance of LIHCs. Therefore, a rod-like nanostructure of NiF2 with a clear morphology was prepared by a simple hydrothermal method. The nanorod structure of NiF2 shortens the transport distance of lithium ions and provides more active sites, thus showing excellent electrochemical performance. The specific capacity of the NR-NiF2 electrode can reach 379 mA h g(-1) after 500 cycles at 0.1 A g(-1) and remains at 61 mA h g(-1) after 10,000 cycles (a current density of 2 A g(-1)). Meanwhile, according to the fitting results of the peak current and sweep rate, b = 0.95 is obtained, indicating that the electrochemical behavior of the NR-NiF2 material is dominated by pseudocapacitance. Furthermore, the LIHCs of NR-NiF2//AC are constructed and exhibit a high energy density of 87 W h kg(-1)(at 96 W kg(-1)), a high power density of 6079 W kg(-1) (at 27 W h kg(-1)), and an excellent cycle stability (capacity retention of 69% after 5000 cycles at 1 A g(-1)). Hence, NiF2 nanorods with fast kinetic properties are a promising choice as an anode material for LIHCs.
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000752894100021
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/154980]
专题	材料科学与工程学院
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China;
推荐引用方式 GB/T 7714	Jiao, Ai-Jun,Gao, Jian-Fei,He, Zheng-Hua,et al. Nickel Fluoride Nanorods as Anode Materials for Li-Ion Hybrid Capacitors[J]. ACS APPLIED NANO MATERIALS,2021,4(11):11601-11610.
APA	Jiao, Ai-Jun,Gao, Jian-Fei,He, Zheng-Hua,Hou, Jing-Feng,&Kong, Ling-Bin.(2021).Nickel Fluoride Nanorods as Anode Materials for Li-Ion Hybrid Capacitors.ACS APPLIED NANO MATERIALS,4(11),11601-11610.
MLA	Jiao, Ai-Jun,et al."Nickel Fluoride Nanorods as Anode Materials for Li-Ion Hybrid Capacitors".ACS APPLIED NANO MATERIALS 4.11(2021):11601-11610.