A high performance all-solid-state flexible supercapacitor based on carbon nanotube fiber/carbon nanotubes/polyaniline with a double core-sheathed structure

作者：Liu, Jia-hua; Xu, Xiao-ying; Lu, Weibang; Xiong, Xinbo; Ouyang, Xing; Zhao, Changhui; Wang, Fei; Qin, Si-yin; Hong, Jiao-ling; Tang, Jiao-ning; Chen, Da-Zhu^*

来源：Electrochimica Acta, 2018, 283(Pt.1): 366-373.

DOI：10.1016/j.electacta.2018.06.158

• Carbon nanotube fiber
• Supercapacitors
• Electrophoretic deposition
• Polyaniline
• Flexibility

A new type of ternary carbon nanotube fiber (CNF)/three-dimensional (3D) porous carbon nanotubes (CNTs)/polyaniline (PANI) electrodes with a double core-sheathed architecture composed of CNF/CNTs and CNTs/PANI was fabricated via low-potential electrophoretic deposition of CNTs and subsequent electrochemical polymerization of PANI on the CNF surface. The resulting all-solid-state supercapacitor possesses a high specific capacitance of 67.31 mF cm(-2) at the current density of 0.5 mA cm(-2) and only a loss as less as 10% of its initial specific capacitance after 5000 charge-discharge cycles. Furthermore, it is capable of withstanding different bending deformations, and can maintain 99.8% capacitance, even after experiencing the bending of 180 degrees for 500 times, which manifests a significant application potential in the field of flexible electronic devices.

• 出版日期2018-9-1
• 单位深圳大学; 中国科学院苏州纳米技术与纳米仿生研究所