N,N-二甲基吡咯烷鎓类离子盐在超级电容器中应用
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摘要
两步法合成了N,N-二甲基吡咯烷鎓双(三氟甲基磺酰)亚胺(DMPTFSI)、N,N-二甲基吡咯烷鎓四氟硼酸盐(DMPBF4)二种离子盐,研究了这两种离子盐在乙腈中电导率性能。对所制备出超级电容器进行3. 0V,100C,15 000周循环充放电性能研究,发现N,N-二甲基吡咯烷鎓四氟硼酸盐(DMPBF4)体系电解液在电容及内阻方面表现突出。
Two kinds of ionic salts, N,N-dimethylpyrrolidinium bistriflimide( DMPTFSI), N,N-dimethylpyrrolidinium tetrafluoroborate( DMPBF4) were synthesized by two-step method. The conductivity of these two ionic salts in acetonitrile was studied. 15000 charging-discharging cycles performance of supercapacitors prepared by these two kinds of ionic salts under 3. 0 V,100 C was studied. The electrolyte prepared by DMPBF4 showed excellent performance in capacity and internal resistance.
Two kinds of ionic salts, N,N-dimethylpyrrolidinium bistriflimide( DMPTFSI), N,N-dimethylpyrrolidinium tetrafluoroborate( DMPBF4) were synthesized by two-step method. The conductivity of these two ionic salts in acetonitrile was studied. 15000 charging-discharging cycles performance of supercapacitors prepared by these two kinds of ionic salts under 3. 0 V,100 C was studied. The electrolyte prepared by DMPBF4 showed excellent performance in capacity and internal resistance.
引文
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[3]Palm R,Kurig H,Romann T,et al.Application of Some Carbon Fabrics as Outstanding Supercapacitor Electrode Materials in Acetonitrile Based Electrolyte[J].Journal of the Electrochemical Society,2017,164(2):A453-A460.
[4]Wu X.Effect of the Electrolyte on Capacitive Behavior of Supercapacitor Electrodes[J]Journal of Nanoelectronics&Optoelectronics,2018,13(1):144-149.
[5]Batisse N.A self-standing hydrogel neutral electrolyte for high voltage and safe flexible supercapacitors[J].Journal of Power Sources,2017,348:168-174.
[6]Thangavel R,Kannan A G,Ponraj R,et al.High-energy green supercapacitor driven by ionic liquid electrolytes as an ultra-high stable next-generation energy storage device[J].Journal of Power Sources,2018,383:102-109.
[7]Salanne M.Ionic Liquids for Supercapacitor Applications[J].Topics in Current Chemistry》,2017,375(3):63
[8]Daraghmeh A,Hussain S,Saadeddin I,et al.A Study of Carbon Nanofibers and Active Carbon as Symmetric Supercapacitor in Aqueous Electrolyte:A Comparative Study[J].Nanoscale Research Letters,2017,12(1):639.
[9]焦琛,张卫珂,苏方远,等.超级电容器电极材料与电解液的研究进展[J].新型炭材料,2017,32(2):106-115.
[10]张庆国,兰亚林,张鑫源,等.超级电容器混合型电解液(EMIES+Li Cl O_4)的热力学和电化学性质[J].电子元件与材料,2017,36(4):64-70.
[11]邴雪峰,王际童,乔文明,等.电解液对活性炭基超级电容器低温性能的影响[J].电源技术,2016,40(11):2201-2205.
[12]左飞龙,陈照荣,傅冠生,等.超级电容器低温有机电解液研究[J].电源技术,2016,40(10):2023-2025.
[13]金振兴,田源,张庆国,等.1-丁基-3-甲基眯唑离子液体在超级电容器中的应用[J].电子元件与材料,2010,29(9):66-69.
[14]Devarajan T,Higashiya S,Dangler C,et al.Novel ionic liquid electrolyte for electrochemical double layer capacitors[J].Electrochemistry Communications,2009,11:680-683.
[15]Grahame D C.The Electrical Double Layer and the Theory of Electrocapillarity.[J]Chemical Reviews,1947,41(3),441-501.
[16]Fichett B D,Knepp T N,Conboy J C.1-Alkyl-3-methylimidazolium Bis(perfluoroalkylsulfonyl)imide Water-Immiscible Ionic Liquids:The Effect of Water on Electrochemical and Physical Properties[J].Journal of The Electrochemical Societ,2004.151(7):E219-E225.
[17]Zhu Q,Song Y,Zhu X F,et al.Ionic Liquid-based Electrolytesfor Capacitors Applications[J].Journal of electroanalytical chemistry,2007,601:229-236.
[18]Lazzari M,Soavi F,Mastragostino M.High voltage,asymmetric EDLCs based on xerogel carbon and hydrophobic IL electrolytes[J].Jourual of Power Sources,2008,178(1):490-496.
[19]刘志祥、董国君,张密林.双电层电容器的制备及性能[J].电源技术,2001,25(6):413-415.
[20]McEwen A B,Ngo H L,Le Compte k,et al.Electrochemical Properties of Imidazolium Salt Electrolytes For Electrochemical Capacitor Applications[J]Journal of The Electrochemical Societ,1999.146(5):1687-1695.