A low-cost "water-in-salt" electrolyte for a 2.3 V high-rate carbon-based supercapacitor

doi:10.1039/c9ta00154a

	A low-cost "water-in-salt" electrolyte for a 2.3 V high-rate carbon-based supercapacitor
	Bu, Xudong 1,4; Su, Lijun 1,2; Dou, Qingyun 1,2; Lei, Shulai 1; Yan, Xingbin 1,2,3
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2019-04-07
卷号	7 期号:13 页码:7541-7547
关键词	Carbon Costs Electrolytes Inorganic compounds Sodium compounds Supercapacitor
ISSN号	2050-7488
DOI	10.1039/c9ta00154a
英文摘要	Aqueous electrolytes have shown extraordinary promise for safe electrochemical energy storage devices, but their widespread use is severely limited by the narrow electrochemical stability window (ESW). Here we demonstrate the great feasibility of using a superconcentrated sodium perchlorate aqueous solution as a low-cost water-in-salt electrolyte to construct a high-performance carbon-based supercapacitor (SC). The attractive features of this electrolyte including wide ESW and excellent conductivity enable the model SC to fully work at 2.3 volts with superior rate capability and outstanding cycling stability. This SC exhibits a comparable energy density, a higher power density and a much lower price compared to commercial non-aqueous SCs working at 2.7 volts, representing significant progress toward practical applications.
资助项目	National Natural Science Foundation of China[21573265] ; National Natural Science Foundation of China[21673263]
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000463819400023
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/31960]
专题	材料科学与工程学院
通讯作者	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, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100039, Peoples R China 3.Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 4.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Bu, Xudong,Su, Lijun,Dou, Qingyun,et al. A low-cost "water-in-salt" electrolyte for a 2.3 V high-rate carbon-based supercapacitor[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(13):7541-7547.
APA	Bu, Xudong,Su, Lijun,Dou, Qingyun,Lei, Shulai,&Yan, Xingbin.(2019).A low-cost "water-in-salt" electrolyte for a 2.3 V high-rate carbon-based supercapacitor.JOURNAL OF MATERIALS CHEMISTRY A,7(13),7541-7547.
MLA	Bu, Xudong,et al."A low-cost "water-in-salt" electrolyte for a 2.3 V high-rate carbon-based supercapacitor".JOURNAL OF MATERIALS CHEMISTRY A 7.13(2019):7541-7547.