Flower-like NiCo-carbonate Hydroxides for High-performance Solid-state Hybrid Supercapacitor

doi:10.1002/elan.202100542

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Flower-like NiCo-carbonate Hydroxides for High-performance Solid-state Hybrid Supercapacitor
	Wang, Jingruo 1,2; Zhang, Deyi 1,2; She, Wenna 1,2; Gao, Shiyao 1,2; Wang, Kunjie 1,2; Wang, Yi 1,2; Han, Zhiyong 2; Chen, Xuefu 2; Li, Lan 2
刊名	ELECTROANALYSIS
	2022
关键词	NiCo-carbonate hydroxides solid-state supercapacitor hybrid supercapacitor
ISSN号	1040-0397
DOI	10.1002/elan.202100542
英文摘要	Compared to the traditional transition metal layered double hydroxides, transition metal layered carbonate double hydroxides (TMC-LDHs) possess superior electrochemical performance in theory. But TMC-LDHs have not received its deserved attention, especially for application in the energy storage field. In this work, a flower-like TMC-LDH (Ni0.75Co0.25(CO3)(0.125)(OH)(2), NCCO) material was successfully prepared by hydrothermal method, which exhibits a high specific capacity of 306.8 mAh g(-1) (0.52 mAh cm(-2)) at 0.5 A g(-1) with capacity retention of 70.5 % after 2000 cycles. The solid-state hybrid supercapacitor device NCCO//PVA/KOH//IHPC based on the prepared NCCO material and an interconnected hierarchical porous carbon (IHPC) delivers a high specific energy of 50.96 Wh kg(-1) at a specific power of 1.06 kW kg(-1), and a high specific energy of 36.39 Wh kg(-1) still can be delivered at a high specific power of 10.49 kW kg(-1). More than 181.2 % of initial specific capacity is retained after 12000 cycles. The specific energy, energy retention under large specific power, and the cycle stability of the assembled device are better than most of the solid-state hybrid supercapacitors that have been reported. These results demonstrate the promising prospect of the TMC-LDH material in the practical application in advanced solid-state supercapacitors.
WOS研究方向	Chemistry ; Electrochemistry
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000740723900001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/154863]
专题	石油化工学院
作者单位	1.Lanzhou Univ Technol, Key Lab Low Carbon Energy & Chem Engn Gansu Prov, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jingruo,Zhang, Deyi,She, Wenna,et al. Flower-like NiCo-carbonate Hydroxides for High-performance Solid-state Hybrid Supercapacitor[J]. ELECTROANALYSIS,2022.
APA	Wang, Jingruo.,Zhang, Deyi.,She, Wenna.,Gao, Shiyao.,Wang, Kunjie.,...&Li, Lan.(2022).Flower-like NiCo-carbonate Hydroxides for High-performance Solid-state Hybrid Supercapacitor.ELECTROANALYSIS.
MLA	Wang, Jingruo,et al."Flower-like NiCo-carbonate Hydroxides for High-performance Solid-state Hybrid Supercapacitor".ELECTROANALYSIS (2022).