Maximization of Spatial Charge Density: An Approach to Ultrahigh Energy Density of Capacitive Charge Storage

doi:10.1002/anie.202005270

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Maximization of Spatial Charge Density: An Approach to Ultrahigh Energy Density of Capacitive Charge Storage
	Ma HY 4; Chen HW 4; Wu MM 4; Chi FY 4; Liu F(刘峰)1; Bai JX 2,3; Cheng HH 2,3; Li C 4; Qu LT 2,3,4
刊名	ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
	2020-07-07
页码	10
关键词	capacitive energy storage in situ Raman spectroscopy ion sieving effect spatial charge density zinc ion hybrid capacitor
ISSN号	1433-7851
DOI	10.1002/anie.202005270
英文摘要	Capacitive energy storage has advantages of high power density, long lifespan, and good safety, but is restricted by low energy density. Inspired by the charge storage mechanism of batteries, a spatial charge density (SCD) maximization strategy is developed to compensate this shortage by densely and neatly packing ionic charges in capacitive materials. A record high SCD (ca. 550 C cm(-3)) was achieved by balancing the valance and size of charge-carrier ions and matching the ion sizes with the pore structure of electrode materials, nearly five times higher than those of conventional ones (ca. 120 C cm(-3)). The maximization of SCD was confirmed by Monte Carlo calculations, molecular dynamics simulations, and in situ electrochemical Raman spectroscopy. A full-cell supercapacitor was further constructed; it delivers an ultrahigh energy density of 165 Wh L(-1)at a power density of 150 WL(-1)and retains 120 Wh L(-1)even at 36 kW L-1, opening a pathway towards high-energy-density capacitive energy storage.
分类号	一类
WOS关键词	RAMAN-SPECTROSCOPY ; DOPED GRAPHENE ; SUPERCAPACITORS ; PERFORMANCE ; ELECTROLYTES ; DESOLVATION ; RANGE ; OXIDE ; IONS
WOS研究方向	Chemistry
语种	英语
WOS记录号	WOS:000546158900001
资助机构	National Key R&D Program of China[2016YFA0200200] ; National Key R&D Program of China[2017YFB1104300] ; NSFC[51673026] ; NSFC[51433005] ; NSFC[21674056] ; NSFC-MAECI[51861135202]
其他责任者	Liu, Feng ; Qu, Liangti
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/84750]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 2.Tsinghua Univ, Dept Mech Engn, Minist Educ China, Key Lab Adv Mat Proc Technol, Beijing 100084, Peoples R China; 3.Tsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R China 4.Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China;
推荐引用方式 GB/T 7714	Ma HY,Chen HW,Wu MM,et al. Maximization of Spatial Charge Density: An Approach to Ultrahigh Energy Density of Capacitive Charge Storage[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2020:10.
APA	Ma HY.,Chen HW.,Wu MM.,Chi FY.,刘峰.,...&Qu LT.(2020).Maximization of Spatial Charge Density: An Approach to Ultrahigh Energy Density of Capacitive Charge Storage.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,10.
MLA	Ma HY,et al."Maximization of Spatial Charge Density: An Approach to Ultrahigh Energy Density of Capacitive Charge Storage".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020):10.