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Insight into the Camel-to-Bell Transition of Differential Capacitance in Ionic Liquid-Based Supercapacitors

文献类型：期刊论文

作者Gan, Zhongdong2,3; Wang, Yanlei2,4; Lu, Yumiao2; Qin, Jingyu1,2; Nie, Yi2,5; He, Hongyan2,4
刊名CHEMELECTROCHEM
出版日期2022-08-12
卷号9期号:15页码:8
关键词charging mechanism electrical double layer ionic liquids molecular dynamics simulations supercapacitor
ISSN号2196-0216
DOI10.1002/celc.202200274
英文摘要Understanding ionic liquid (IL)-electrode interface is of great significance to the design of electrochemical systems. Herein, the electrical double layer (EDL) structure and charging process of the supercapacitor with ILs were investigated by engineering the cation-anion and IL-electrode interaction through molecular dynamics simulations coupled with the constant potential method. A camel-to-bell shape transition of differential capacitance was identified when the cation-anion or IL-electrode interaction decreased, manifesting the sensitive responses of EDL structure and charging mechanism to the varying interactions. Moreover, the identified camel-to-bell transition could lead to the rise of differential capacitance and energy density in the low working voltage. These findings can help guide the molecular design for high-performance IL-based supercapacitors and other electrochemical devices where the IL-electrode interfaces are crucial.
WOS关键词ELECTRICAL DOUBLE-LAYER ; MOLECULAR INSIGHTS ; CARBON SUPERCAPACITORS ; SIMPLE EXTENSION ; ENERGY-STORAGE ; GLASSY-CARBON ; LENGTH SCALE ; MODEL ; DYNAMICS ; CHARGE
资助项目National Key R&D Program of China[2021YFB3802600] ; National Natural Science Foundation of China[22078322] ; National Natural Science Foundation of China[21922813] ; National Natural Science Foundation of China[22178344] ; Youth Innovation Promotion Association of CAS[2021046] ; Youth Innovation Promotion Association of CAS[Y2021022] ; Fund of State Key Laboratory of Multiphase Complex Systems[MPCS-2021-A-10] ; Project of State Key Laboratory of Treatments and Recycling for Organic Effluents by Adsorption in Petroleum and Chemical Industry, Soochow University[SDHY2114]
WOS研究方向Electrochemistry
语种英语
WOS记录号WOS:000835485400001
出版者WILEY-V C H VERLAG GMBH
资助机构National Key R&D Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of CAS ; Fund of State Key Laboratory of Multiphase Complex Systems ; Project of State Key Laboratory of Treatments and Recycling for Organic Effluents by Adsorption in Petroleum and Chemical Industry, Soochow University
源URL[http://ir.ipe.ac.cn/handle/122111/54406]  
专题中国科学院过程工程研究所
通讯作者Wang, Yanlei; He, Hongyan
作者单位1.Soochow Univ, State Key Lab Treatments & Recycling Organ Efflue, Suzhou 215123, Peoples R China
2.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst, CAS Key Lab Green Proc & Engn,Inst Proc Engn, Beijing 100190, Peoples R China
3.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Zhengzhou Inst Emerging Ind Technol, Zhengzhou 450000, Peoples R China
推荐引用方式
GB/T 7714		 Gan, Zhongdong,Wang, Yanlei,Lu, Yumiao,et al. Insight into the Camel-to-Bell Transition of Differential Capacitance in Ionic Liquid-Based Supercapacitors[J]. CHEMELECTROCHEM,2022,9(15):8.
APA Gan, Zhongdong,Wang, Yanlei,Lu, Yumiao,Qin, Jingyu,Nie, Yi,&He, Hongyan.(2022).Insight into the Camel-to-Bell Transition of Differential Capacitance in Ionic Liquid-Based Supercapacitors.CHEMELECTROCHEM,9(15),8.
MLA Gan, Zhongdong,et al."Insight into the Camel-to-Bell Transition of Differential Capacitance in Ionic Liquid-Based Supercapacitors".CHEMELECTROCHEM 9.15(2022):8.

入库方式： OAI收割

来源：过程工程研究所

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