The boom in ultrathin electronic devices and the growing need for humanization greatly facilitated the development of wearable fexible microdevices.But the technology to deposit electrode material on fexible substrate...The boom in ultrathin electronic devices and the growing need for humanization greatly facilitated the development of wearable fexible microdevices.But the technology to deposit electrode material on fexible substrate is still in its infancy.Herein,the fexible symmetric micro-supercapacitors made of carbon nanotubes(CNTs)on commercial printing paper as electrode materials were fabricated by combining tetrahedral preparator auxiliary coating method and laser-cutting interdigital configuration technique on a large scale.The electrochemical performance of the obtained micro-supercapacitors can be controlled and tuned by simple choosing different models of tetrahedral preparatory to obtain CNTs film of different thicknesses.As expected,the micro-supercapacitor based on CNTs film can deliver an areal capacitance up to 4.56 m F/cm^(2) at current of 0.02 m A.Even if,micro-supercapacitor undergoes continuous 10000 cycles,the performance of device can still remain nearly 100%.The as-demonstrated tetrahedral preparator auxiliary coating method and laser-cutting interdigital configuration technique provide new perspective for preparing microelectronics in an economical way.The paper electrode appended by CNTs achieves steerable areal capacitance,showing broad application prospect in fabricating asymmetric micro-supercapacitor with fexible planar configurations in the future.展开更多
H+ doped polyaniline nanofibre(PH) was synthesized by interfacial polymerization and polyanilines doped with Li salt(PLI and PHLI) were prepared by immersing emeraldine base(EB) and H+ doped polyaniline in 1 mol/L LiP...H+ doped polyaniline nanofibre(PH) was synthesized by interfacial polymerization and polyanilines doped with Li salt(PLI and PHLI) were prepared by immersing emeraldine base(EB) and H+ doped polyaniline in 1 mol/L LiPF6/(EC-EMC-DMC),respectively.PH,PLI and PHLI were all characterized by scanning electron microscopy(SEM) and Fourier transform infrared(FT-IR) spectrometry.With 1 mol/L LiPF6/(EC-EMC-DMC) as electrolyte,PH,PHLI and PLI were used as the active materials of symmetric non-aqueous redox supercapacitors.PLI shows the highest initial specific capacitance of 120 F/g(47 F/g for PH and 66 F/g for PHLI) among three samples.After 500 cycles,the specific capacitance of PLI remains 75 F/g,indicating the good cycleability.展开更多
基金supported by the Important Directional Project of ' the Research and Exploration of Supercapacitor Storage System for Electric Vehicle' from Dalian Institute of Chemical Physics,Chinese Academy of Sciences,China~~
基金supported by the National Natural Science Foundation of China(No.51701002,No.51871001,No.51672001)。
文摘The boom in ultrathin electronic devices and the growing need for humanization greatly facilitated the development of wearable fexible microdevices.But the technology to deposit electrode material on fexible substrate is still in its infancy.Herein,the fexible symmetric micro-supercapacitors made of carbon nanotubes(CNTs)on commercial printing paper as electrode materials were fabricated by combining tetrahedral preparator auxiliary coating method and laser-cutting interdigital configuration technique on a large scale.The electrochemical performance of the obtained micro-supercapacitors can be controlled and tuned by simple choosing different models of tetrahedral preparatory to obtain CNTs film of different thicknesses.As expected,the micro-supercapacitor based on CNTs film can deliver an areal capacitance up to 4.56 m F/cm^(2) at current of 0.02 m A.Even if,micro-supercapacitor undergoes continuous 10000 cycles,the performance of device can still remain nearly 100%.The as-demonstrated tetrahedral preparator auxiliary coating method and laser-cutting interdigital configuration technique provide new perspective for preparing microelectronics in an economical way.The paper electrode appended by CNTs achieves steerable areal capacitance,showing broad application prospect in fabricating asymmetric micro-supercapacitor with fexible planar configurations in the future.
基金Project(2008AA03Z207) supported by the National Hi-tech Research and Development Program of China
文摘H+ doped polyaniline nanofibre(PH) was synthesized by interfacial polymerization and polyanilines doped with Li salt(PLI and PHLI) were prepared by immersing emeraldine base(EB) and H+ doped polyaniline in 1 mol/L LiPF6/(EC-EMC-DMC),respectively.PH,PLI and PHLI were all characterized by scanning electron microscopy(SEM) and Fourier transform infrared(FT-IR) spectrometry.With 1 mol/L LiPF6/(EC-EMC-DMC) as electrolyte,PH,PHLI and PLI were used as the active materials of symmetric non-aqueous redox supercapacitors.PLI shows the highest initial specific capacitance of 120 F/g(47 F/g for PH and 66 F/g for PHLI) among three samples.After 500 cycles,the specific capacitance of PLI remains 75 F/g,indicating the good cycleability.
