Mitigating self-discharge of carbon-based electrochemical capacitors by modifying their electric-double layer to maximize energy efficiency

doi:10.1016/j.jechem.2019.04.004

IMR OpenIR

	Mitigating self-discharge of carbon-based electrochemical capacitors by modifying their electric-double layer to maximize energy efficiency
	Wang, Yu-Zuo 1,2; Shan, Xu-Yi 2,3; Wang, Da-Wei 4; Cheng, Hui-Ming 2,5; Li, Feng 2,6
通讯作者	Wang, Da-Wei(da-wei.wang@unsw.edu.au) ; Cheng, Hui-Ming(cheng@imr.ac.cn) ; Li, Feng(fli@imr.ac.cn)
	2019-11-01
发表期刊	JOURNAL OF ENERGY CHEMISTRY
ISSN	2095-4956
卷号	38 页码:214-218
摘要	Self-discharge is a significant issue in electric double layer energy storage, which leads to a rapid voltage drop and low energy efficiency. Here, we attempt to solve this problem by changing the structure of the electric double layer into a de-solvated state, by constructing a nano-scale and ion-conductive solid electrolyte layer on the surface of a carbon electrode. The ion concentration gradient and potential field that drive the self-discharge are greatly restricted inside this electric double layer. Based on this understanding, a high-efficiency graphene-based lithium ion capacitor was built up, in which the self-discharge rate is reduced by 50% and the energy efficiency is doubled. The capacitor also has a high energy density, high power output and long life, and shows promise for practical applications. (C) 2019 The Author(s). Published by Elsevier B.V. and Science Press on behalf of Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences.
关键词	Electric double layer Self-discharge Graphene Lithium ion capacitor
资助者	National Natural Science Foundation of China ; Ministry of Science and Technology of China ; Strategic Priority Research Program of Chinese Academy of Science ; Key Research Program of Chinese Academy of Sciences ; Program for Guangdong Introducing Innovative and Enterpreneurial Teams ; Development and Reform Commission of Shenzhen Municipality
DOI	10.1016/j.jechem.2019.04.004
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51525206] ; National Natural Science Foundation of China[51521091] ; National Natural Science Foundation of China[51172239] ; Ministry of Science and Technology of China[2016YFA0200100] ; Ministry of Science and Technology of China[2016YFB0100100] ; Strategic Priority Research Program of Chinese Academy of Science[XDA22010602] ; Key Research Program of Chinese Academy of Sciences[KGZD-EWT06] ; Program for Guangdong Introducing Innovative and Enterpreneurial Teams ; Development and Reform Commission of Shenzhen Municipality
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering
WOS类目	Chemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000477704600029
出版者	ELSEVIER
引用统计	被引频次：32[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/134507
专题	中国科学院金属研究所
通讯作者	Wang, Da-Wei; Cheng, Hui-Ming; Li, Feng
作者单位	1.Northeastern Univ, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 3.China Aviat Lithium Battery Technol Co Ltd, Luoyang 471000, Henan, Peoples R China 4.Univ New South Wales, Sch Chem Engn, Sydney, NSW 2052, Australia 5.Tsinghua Univ, Shenzhen Geim Graphene Ctr, Tsinghua Berkeley Shenzhen Inst, Shenzhen 518055, Guangdong, Peoples R China 6.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yu-Zuo,Shan, Xu-Yi,Wang, Da-Wei,et al. Mitigating self-discharge of carbon-based electrochemical capacitors by modifying their electric-double layer to maximize energy efficiency[J]. JOURNAL OF ENERGY CHEMISTRY,2019,38:214-218.
APA	Wang, Yu-Zuo,Shan, Xu-Yi,Wang, Da-Wei,Cheng, Hui-Ming,&Li, Feng.(2019).Mitigating self-discharge of carbon-based electrochemical capacitors by modifying their electric-double layer to maximize energy efficiency.JOURNAL OF ENERGY CHEMISTRY,38,214-218.
MLA	Wang, Yu-Zuo,et al."Mitigating self-discharge of carbon-based electrochemical capacitors by modifying their electric-double layer to maximize energy efficiency".JOURNAL OF ENERGY CHEMISTRY 38(2019):214-218.