Constructing High-Performance Li-ion Capacitors via Cobalt Fluoride with Excellent Cyclic Stability as Anode and Coconut Shell Biomass-Derived Carbon as Cathode Materials

doi:10.1002/slct.202102420

	Constructing High-Performance Li-ion Capacitors via Cobalt Fluoride with Excellent Cyclic Stability as Anode and Coconut Shell Biomass-Derived Carbon as Cathode Materials
	Jiao, Ai-Jun 2; Gao, Jian-Fei 2; He, Zheng-Hua 2; Li, Feng-Feng 2; Kong, Ling-Bin 1,2
刊名	CHEMISTRYSELECT
	2021-08-27
卷号	6 期号:32 页码:8349-8360
关键词	Anode Biochar Cathode Cobalt fluoride Lithium-ion capacitor
ISSN号	2365-6549
DOI	10.1002/slct.202102420
英文摘要	The Lithium-ion capacitor (LIC) is a potential candidate for the next generation of energy storage devices due to high power density, high energy density and excellent cycle stability. Nonetheless, the problem of matching optimization is still faced for LIC. Many different approaches are explored to find a balance between the two storage mechanisms so that high performance LICs can be obtained. Here, CoF2, prepared by solvothermal method, showed reversible specific capacity of 307 mAh g(-1) after 900 cycles at 0.1 A g(-1) and 81 mAh g(-1) after 10,000 cycles at 4 A g(-1). Meanwhile, coconut shell is used as precursor for preparing natural porous carbon as cathode materials of LIC. The coconut shell biomass carbon (CSBC-5), outstanding specific surface area (2767 m(2) g(-1)), holds a capacity of 120 mAh g(-1) after 1000 cycles at 1 A g(-1). The LIC, CoF2 as anode and CSBC-5 as cathode, shows excellent cycle stability (65 % capacity retention after 5000 cycles), higher energy density of 82 Wh kg(-1) (at power density of 190 W kg(-1)) and higher power density of 3800 W kg(-1)(at energy density of 50 Wh kg(-1)). Therefore, the material of CoF2 is a promising choice for the future anode and promotes the development of LIC.
WOS研究方向	Chemistry
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000690904200021
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148682]
专题	材料科学与工程学院
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, 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. Constructing High-Performance Li-ion Capacitors via Cobalt Fluoride with Excellent Cyclic Stability as Anode and Coconut Shell Biomass-Derived Carbon as Cathode Materials[J]. CHEMISTRYSELECT,2021,6(32):8349-8360.
APA	Jiao, Ai-Jun,Gao, Jian-Fei,He, Zheng-Hua,Li, Feng-Feng,&Kong, Ling-Bin.(2021).Constructing High-Performance Li-ion Capacitors via Cobalt Fluoride with Excellent Cyclic Stability as Anode and Coconut Shell Biomass-Derived Carbon as Cathode Materials.CHEMISTRYSELECT,6(32),8349-8360.
MLA	Jiao, Ai-Jun,et al."Constructing High-Performance Li-ion Capacitors via Cobalt Fluoride with Excellent Cyclic Stability as Anode and Coconut Shell Biomass-Derived Carbon as Cathode Materials".CHEMISTRYSELECT 6.32(2021):8349-8360.