Fabrication and Electrochemical Performance of PVA/CNT/PANI Flexible Films as Electrodes for Supercapacitors

• Published in: Nanoscale research letters Vol. 15; no. 1; p. 151
• Main Authors: Ben, Jianwei, Song, Zhiyuan, Liu, Xinke, Lü, Wei, Li, Xiaohua
• Format: Journal Article
• Language: English
• Published: New York Springer US 22-07-2020; Springer Nature B.V; SpringerOpen
• Subjects: Capacitance; Carbon nanotube; Carbon nanotubes; Charge transport; Chemistry and Materials Science; Electrochemical analysis; Electrochemistry; Electrode materials; Electrodes; Electrons; Energy storage; Fabrication; Flexibility; Materials Science; Molecular Medicine; Nano Express; Nanochemistry; Nanoscale Science and Technology; Nanotechnology; Nanotechnology and Microengineering; Nanotubes; Polyaniline; Polyanilines; Polyvinyl alcohol; Portable equipment; Stretchability; Sulfuric acid; Supercapacitor; Supercapacitors; Wearable technology; Carbon nanotube; Supercapacitor; Polyvinyl alcohol; Polyaniline; Flexibility
• ISSN: 1556-276X; 1931-7573; 1556-276X
• DOI: 10.1186/s11671-020-03379-w

The flexible and rechargeable energy storage device with excellent performance is highly desired due to the demands of portable and wearable devices. Herein, by integrating the bendability and stretchability of Polyvinyl alcohol (PVA), pseudocapacitance of Polyaniline (PANI), and the charge transport ability of carbon nanotubes (CNTs), PVA/CNT/PANI flexible film was fabricated as supercapacitor electrodes with excellent electrochemical performance and flexibility. Full-solid supercapacitor is prepared based on PVA/H
2
SO
4
gel electrolyte and as-prepared film electrodes. The device achieves an areal capacitance of 196.5 mF cm
-2
with high cycling stability. The flexible properties of PVA, the conductivity of CNT, and the pseudo-capacitance of PANI contribute to the superior performance. Present work develops a facile and effective way for preparing flexible electrode materials.
Graphical Abstract
In present work, we fabricated PVA/CNT/PANI flexible film as supercapacitor electrodes with excellent electrochemical performance and flexibility.