Development of Graphene Oxide/Polyaniline Inks for High Performance Flexible Microsupercapacitors via Extrusion Printing

被引:196
|
作者
Liu, Yuqing
Zhang, Binbin [1 ,2 ]
Xu, Qun [3 ]
Hou, Yuyang [1 ,2 ]
Seyedin, Shayan [4 ]
Qin, Si [4 ]
Wallace, Gordon G. [1 ,2 ]
Beirne, Stephen [1 ,2 ]
Razal, Joselito M. [4 ]
Chen, Jun [1 ,2 ]
机构
[1] Univ Wollongong, Intelligent Polymer Res Inst, Wollongong, NSW 2500, Australia
[2] Univ Wollongong, ARC Ctr Excellence Electromat Sci, Wollongong, NSW 2500, Australia
[3] Zhengzhou Univ, Coll Mat Sci & Engn, Zhengzhou 450052, Henan, Peoples R China
[4] Deakin Univ, Inst Frontier Mat, Geelong, Vic 3216, Australia
基金
澳大利亚研究理事会;
关键词
extrusion printing; graphene; microsupercapacitors; polyaniline; printable ink; SOLID-STATE MICROSUPERCAPACITORS; LASER-INDUCED GRAPHENE; MICRO-SUPERCAPACITORS; ENERGY-STORAGE; SENSOR NETWORKS; CARBON; NANOTUBE; FILMS; OXIDE; ELECTRODES;
D O I
10.1002/adfm.201706592
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Extrusion printing of interdigitated electrodes for flexible microsupercapacitors (fMSCs) offers an attractive route to the fabrication of flexible devices where cost, scalability, and processability of ink formulations are critical. In this work, highly concentrated, viscous, and water-dispersible inks are developed based on graphene oxide (GO)/polyaniline (PANi) composite for extrusion printing. The optimized GO/PANi-based all-solid-state symmetric fMSCs obtained by extrusion printing interdigitated microelectrodes can deliver outstanding areal capacitance of 153.6 mF cm(-2) and volumetric capacitance of 19.2 F cm(-3) at 5 mV s(-1). It is shown that by fabricating asymmetric fMSCs using the GO/PANi as positive electrode and a graphene-based negative electrode, the voltage window can be widened from 0.8 to 1.2 V and improvements can be achieved in energy density (from 3.36 to 4.83 mWh cm(-3)), power density (from 9.82 to 25.3 W cm(-3)), and cycling stability (from 75% to 100% capacitance retention over 5000 cycles) compared with the symmetric counterpart. The simple ink preparation and facile device fabrication protocols reported here make the scalable fabrication of extrusion printed fMSCs a promising technology.
引用
收藏
页数:12
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