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

Jianwei Ben; Zhiyuan Song; Xinke Liu; Wei Lü; Xiaohua Li

doi:10.1186/s11671-020-03379-w

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

Nanoscale Res Lett. 2020 Jul 22;15(1):151. doi: 10.1186/s11671-020-03379-w.

Authors

Jianwei Ben^{1

2}, Zhiyuan Song³, Xinke Liu⁴, Wei Lü³, Xiaohua Li⁵

Affiliations

¹ College of Materials Science and Engineering, College of Electronics and Information Engineering, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen University - Hanshan Normal University postdoctoral workstation, Shenzhen University, Shenzhen, 518060, China. benjianwei@ciomp.ac.cn.
² College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China. benjianwei@ciomp.ac.cn.
³ Key Laboratory of Advanced Structural Materials, Ministry of Education &Advanced Institute of Materials Science, Changchun University of Technology, Changchun, 130012, China.
⁴ College of Materials Science and Engineering, College of Electronics and Information Engineering, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen University - Hanshan Normal University postdoctoral workstation, Shenzhen University, Shenzhen, 518060, China.
⁵ College of Materials Science and Engineering, College of Electronics and Information Engineering, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen University - Hanshan Normal University postdoctoral workstation, Shenzhen University, Shenzhen, 518060, China. lxh@szu.edu.cn.

Abstract

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/H₂SO₄ 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. In present work, we fabricated PVA/CNT/PANI flexible film as supercapacitor electrodes with excellent electrochemical performance and flexibility.

Keywords: Carbon nanotube; Flexibility; Polyaniline; Polyvinyl alcohol; Supercapacitor.

Abstract

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