基于TEABF_4/PAN-b-PEG-b-PAN柔性超级电容器的性能研究
|
摘要
采用溶液浇注法,以丙烯腈(AN)和聚乙二醇(PEG)制备了聚丙烯腈(PAN)-b-聚乙二醇-b-聚丙烯腈三嵌段共聚物(PAN-b-PEG-b-PAN),以其作为聚合物基体,以四乙基四氟硼酸铵(TEABF_4)为电解质盐,采用二甲基甲酰胺(DMF)作为增塑剂,制备了TEABF_4/PAN-b-PEG-b-PAN凝胶聚合物电解质。以活性炭作为电极制备柔性超级电容器,通过形貌表征和电化学性能测试探究TEABF_4与PAN-b-PEG-b-PAN的最佳质量配比。结果表明:当TEABF_4与PAN-b-PEG-b-PAN质量比为0.5时其性能最佳,电导率可达5.2×10-2S/cm、比电容为96.18F/g、能量密度为90.30Wh/Kg,5000次循环电容保持率为89%。
Using the method of casting with solution,with a triblock copolymer design of poly(acrylonitrile)-bpoly(ethylene glycol)-b-poly(acrylonitrile)(PAN-b-PEG-b-PAN)for a gel polymer electrolyte(GPE),four ethyl ammonium tetrafluoroborate(TEABF_4)as the electrolyte salt,two methyl formamide(DMF)as plasticizer for preparing TEABF_4/PAN-b-PEG-b-PAN gel polymer electrolyte for flexible supercapacitor based on activated carbon electrode.The performance of flexible supercapacitors under different TEABF_4 and PAN-b-PEG-b-PAN mass ratio was explored.The results show that when the mass ratio of TEABF_4 and PAN-b-PEG-b-PAN was 0.5,it had the best performance.The conductivity can reach 5.2×10-2 S/cm,the specific capacitance was 96.18 F/g,the energy density was 90.30 Wh/Kg,and the capacitance retention of 5000 cycles charge and discharge was about 89%.
Using the method of casting with solution,with a triblock copolymer design of poly(acrylonitrile)-bpoly(ethylene glycol)-b-poly(acrylonitrile)(PAN-b-PEG-b-PAN)for a gel polymer electrolyte(GPE),four ethyl ammonium tetrafluoroborate(TEABF_4)as the electrolyte salt,two methyl formamide(DMF)as plasticizer for preparing TEABF_4/PAN-b-PEG-b-PAN gel polymer electrolyte for flexible supercapacitor based on activated carbon electrode.The performance of flexible supercapacitors under different TEABF_4 and PAN-b-PEG-b-PAN mass ratio was explored.The results show that when the mass ratio of TEABF_4 and PAN-b-PEG-b-PAN was 0.5,it had the best performance.The conductivity can reach 5.2×10-2 S/cm,the specific capacitance was 96.18 F/g,the energy density was 90.30 Wh/Kg,and the capacitance retention of 5000 cycles charge and discharge was about 89%.
引文
[1]Yang Y,Cao B,Li H,et al.A flexible polycation-type aniondominated conducting polymer as potential all-solid-state supercapacitor film electrolyte[J].Chemical Engineering Journal,2017,330:753-756.
[2]Vijayakumar V,Anothumakkool B,Arun T A T,et al.An allsolid-state-supercapacitor possessing a non-aqueous gel polymer electrolyte prepared using a UV-assisted in situ polymerization strategy[J].J Mater Chem A,2017:10.1039.C7TA01514C.
[3]Pandey G P,Liu T,Hancock C,et al.Thermostable gel polymer electrolyte based on succinonitrile and ionic liquid for high-performance solid-state supercapacitors[J].Journal of Power Sources,2016,328:510-519.
[4]Le H T T,Ngo D T,Kalubarme R S,et al.Composite gel polymer electrolyte based on poly(vinylidene fluoride-hexafluoropropylene)(PVDF-HFP)with modified aluminum-doped lithium lanthanum titanate(A-LLTO)for high-performance lithium rechargeable batteries[J].ACS Applied Materials&Interfaces,2016,8(32):20710-20719.
[5]Li H,Lin C E,Shi J L,et al.Preparation and characterization of safety PVDF/P(MMA-co-PEGMA)active separators by studying the liquid electrolyte distribution in this kind of membrane[J].Electrochimica Acta,2014,115:317-325.
[6]Yang L,Hu J,Lei G,et al.Ionic liquid-gelled polyvinylidene fluoride/polyvinyl acetate polymer electrolyte for solid supercapacitor[J].Chemical Engineering Journal,2014,258:320-326.
[7]Hsueh M F,Huang C W,Wu C A,et al.The synergistic effect of nitrile and ether functionalities for gel electrolytes used in supercapacitors[J].The Journal of Physical Chemistry C,2013,117(33):16751-16758.
[8]刘慧.PAN基季铵盐凝胶聚合物电解质的制备及其在超级电容器中的应用[D].广州:广州大学,2016.
[9]Xia L,Yu L,Hu D,et al.Electrolytes for electrochemical energy storage[J].Materials Chemistry Frontiers,2017,1(4):584-618.
[10]Perera K,Vidanapathirana K.Impedance spectroscopy,DC polarization,XRD and SEM studies on an ionic liquid based gel polymer electrolyte to be used for dye sensitized solar cells[J].Materials Discovery,2017,7:30-33.
[11]Luo X,Liao Y,Xie H,et al.Enhancement of cyclic stability for high voltage lithium ion battery at elevated temperature by using polyethylene-supported poly(methyl methacrylate-butyl acrylate-acrylonitrile-styrene)based novel gel electrolyte[J].Electrochimica Acta,2016,220:47-56.
[12]Zhong X,Tang J,Cao L,et al.Cross-linking of polymer and ionic liquid as high-performance gel electrolyte for flexible solid-state supercapacitors[J].Electrochimica Acta,2017,244:112-118.
[13]Yadav N,Mishra K,Hashmi S A.Optimization of porous polymer electrolyte for quasi-solid-state electrical double layer supercapacitor[J].Electrochimica Acta,2017,235:570-582.
[14]Feng E,Ma G,Sun K,et al.Superior performance of an active electrolyte enhanced supercapacitor based on a toughened porous network gel polymer[J].New Journal of Chemistry,2017,41(5):1986-1992.
[15]Yang C,Ji X,Fan X,et al.Flexible aqueous Li-ion battery with high energy and power densities[J].Advanced Materials,2017:1701972.
[16]薛景元,侯博,莫岩,等.PVDF-HFP基凝胶电解质用于LiNi0.5Co0.2Mn0.3O2三元正极锂离子电池[J].材料导报,2017,31(12):6-10.
[17]Peng X,Liu H,Yin Q,et al.A zwitterionic gel electrolyte for efficient solid-state supercapacitors[J].Nature communications,2016,7:11782.
[18]Ortega P F R,Trigueiro J P C,Silva G G,et al.Improving supercapacitor capacitance by using a novel gel nanocomposite polymer electrolyte based on nanostructured SiO2,PVDF and imidazolium ionic liquid[J].Electrochimica Acta,2016,188:809-817.
[2]Vijayakumar V,Anothumakkool B,Arun T A T,et al.An allsolid-state-supercapacitor possessing a non-aqueous gel polymer electrolyte prepared using a UV-assisted in situ polymerization strategy[J].J Mater Chem A,2017:10.1039.C7TA01514C.
[3]Pandey G P,Liu T,Hancock C,et al.Thermostable gel polymer electrolyte based on succinonitrile and ionic liquid for high-performance solid-state supercapacitors[J].Journal of Power Sources,2016,328:510-519.
[4]Le H T T,Ngo D T,Kalubarme R S,et al.Composite gel polymer electrolyte based on poly(vinylidene fluoride-hexafluoropropylene)(PVDF-HFP)with modified aluminum-doped lithium lanthanum titanate(A-LLTO)for high-performance lithium rechargeable batteries[J].ACS Applied Materials&Interfaces,2016,8(32):20710-20719.
[5]Li H,Lin C E,Shi J L,et al.Preparation and characterization of safety PVDF/P(MMA-co-PEGMA)active separators by studying the liquid electrolyte distribution in this kind of membrane[J].Electrochimica Acta,2014,115:317-325.
[6]Yang L,Hu J,Lei G,et al.Ionic liquid-gelled polyvinylidene fluoride/polyvinyl acetate polymer electrolyte for solid supercapacitor[J].Chemical Engineering Journal,2014,258:320-326.
[7]Hsueh M F,Huang C W,Wu C A,et al.The synergistic effect of nitrile and ether functionalities for gel electrolytes used in supercapacitors[J].The Journal of Physical Chemistry C,2013,117(33):16751-16758.
[8]刘慧.PAN基季铵盐凝胶聚合物电解质的制备及其在超级电容器中的应用[D].广州:广州大学,2016.
[9]Xia L,Yu L,Hu D,et al.Electrolytes for electrochemical energy storage[J].Materials Chemistry Frontiers,2017,1(4):584-618.
[10]Perera K,Vidanapathirana K.Impedance spectroscopy,DC polarization,XRD and SEM studies on an ionic liquid based gel polymer electrolyte to be used for dye sensitized solar cells[J].Materials Discovery,2017,7:30-33.
[11]Luo X,Liao Y,Xie H,et al.Enhancement of cyclic stability for high voltage lithium ion battery at elevated temperature by using polyethylene-supported poly(methyl methacrylate-butyl acrylate-acrylonitrile-styrene)based novel gel electrolyte[J].Electrochimica Acta,2016,220:47-56.
[12]Zhong X,Tang J,Cao L,et al.Cross-linking of polymer and ionic liquid as high-performance gel electrolyte for flexible solid-state supercapacitors[J].Electrochimica Acta,2017,244:112-118.
[13]Yadav N,Mishra K,Hashmi S A.Optimization of porous polymer electrolyte for quasi-solid-state electrical double layer supercapacitor[J].Electrochimica Acta,2017,235:570-582.
[14]Feng E,Ma G,Sun K,et al.Superior performance of an active electrolyte enhanced supercapacitor based on a toughened porous network gel polymer[J].New Journal of Chemistry,2017,41(5):1986-1992.
[15]Yang C,Ji X,Fan X,et al.Flexible aqueous Li-ion battery with high energy and power densities[J].Advanced Materials,2017:1701972.
[16]薛景元,侯博,莫岩,等.PVDF-HFP基凝胶电解质用于LiNi0.5Co0.2Mn0.3O2三元正极锂离子电池[J].材料导报,2017,31(12):6-10.
[17]Peng X,Liu H,Yin Q,et al.A zwitterionic gel electrolyte for efficient solid-state supercapacitors[J].Nature communications,2016,7:11782.
[18]Ortega P F R,Trigueiro J P C,Silva G G,et al.Improving supercapacitor capacitance by using a novel gel nanocomposite polymer electrolyte based on nanostructured SiO2,PVDF and imidazolium ionic liquid[J].Electrochimica Acta,2016,188:809-817.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |