Constructing surface-driven lithium ion storage structure for high performance hybrid capacitor

doi:10.1016/j.electacta.2018.12.172

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Constructing surface-driven lithium ion storage structure for high performance hybrid capacitor
	Li, Hongxia 1,2,4; Chen, Jiangtao 1; Yang, Bingjun 1,4; Wang, Kunjie 2; Zhang, Xu 1; Zhang, Tianyun 1,2; Zhang, Li 1,2; Liu, Weisheng 3; Yan, Xingbin 1
刊名	ELECTROCHIMICA ACTA
	2019-03-10
卷号	299 页码:163-172
关键词	Intercalation pseudocapacitive Niobium pentoxide Porous carbon Lithium ion hybrid capacitor
ISSN号	0013-4686
DOI	10.1016/j.electacta.2018.12.172
英文摘要	Because of the potential integration the high energy density of lithium ion batteries and high power output of electrochemical capacitors, lithium ions hybrid capacitors (LIHCs) have been emerged as one of the promising electrochemical energy storage devices. Developing suitable battery-type anodes and capacitive-type cathodes are important to achieve high-performance LIHCs. Herein, we construct an orthorhombic niobium pentoxide/carbon (T-Nb2O5/C) nanocomposite with surface-driven lithium ion storage merit via a facile pyrolysis of Nb-based coordination-polymer. The synthesized T-Nb2O5/C exhibits higher capacity and a much better rate capability compared to commercial Nb2O5. At the same time, benefiting from the host-guest chemistry, we synthesize a high-capacitance N-doped porous carbon cathode through annealing the mixture of beta-cyclodextrin and urea combined with a potassium hydroxide activation. As a consequence, an advanced LIHCs is built based on the above electrode materials, that delivers a high energy density (92Wh kg(-1)) and high power density (17.5 kW kg(-1)) within the wide potential window of 0-3.5 V. A superior cycling performance is also delivered by our device with 86% of the capacitance retention after 10 000 cycles at the 2 A g(-1), successfully bridging the performance gap between conventional batteries and supercapacitors. (C) 2019 Elsevier Ltd. All rights reserved.
资助项目	Independent Innovation Plan Foundations of Qingdao City of China[16-5-1-42-jch]
WOS研究方向	Electrochemistry
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000457551900019
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32039]
专题	石油化工学院机电工程学院理学院
通讯作者	Liu, Weisheng; Yan, Xingbin
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lab Clean Energy Chem & Mat, Lanzhou 730000, Peoples R China 2.Lanzhou Univ Technol, Sch Sci, Sch Mech & Elect Engn, Sch Petrochem Engn, Lanzhou 730050, Gansu, Peoples R China 3.Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Li, Hongxia,Chen, Jiangtao,Yang, Bingjun,et al. Constructing surface-driven lithium ion storage structure for high performance hybrid capacitor[J]. ELECTROCHIMICA ACTA,2019,299:163-172.
APA	Li, Hongxia.,Chen, Jiangtao.,Yang, Bingjun.,Wang, Kunjie.,Zhang, Xu.,...&Yan, Xingbin.(2019).Constructing surface-driven lithium ion storage structure for high performance hybrid capacitor.ELECTROCHIMICA ACTA,299,163-172.
MLA	Li, Hongxia,et al."Constructing surface-driven lithium ion storage structure for high performance hybrid capacitor".ELECTROCHIMICA ACTA 299(2019):163-172.