Issue 3, 2019

Free-standing and highly conductive PEDOT nanowire films for high-performance all-solid-state supercapacitors

Abstract

Recently, flexible and portable supercapacitors (SCs) have attracted increasing interest. PEDOT is a promising electrode material due to its high electrical conductivity, excellent environmental stability and cycling stability; however, the electrochemical performance of free-standing PEDOT films has not been reported yet. Herein, a simple and low-cost modified self-assembled micellar soft-template method followed by vacuum-assisted filtration has been developed to synthesize flexible and free-standing PEDOT nanowire (NW) films with very high electrical conductivity (∼1340 S cm−1). The PEDOT NW film electrode with excellent flexibility exhibits excellent electrochemical performance (specific capacitance of 667.5 mF cm−2 at 1 mA cm−2 and good cycling stability). A flexible solid-state PEDOT NW film-based SC shows high specific capacitances of 413.5 mF cm−2 at 1 mA cm−2 and 306.0 mF cm−2 at 50 mA cm−2, an outstanding energy density of 48.3 μWh cm−2 at a power density of 0.22 mW cm−2 and a superior power density of 16.77 mW cm−2 at an energy density of 19.1 μWh cm−2. The desirable combination of excellent flexibility, high electrical conductivity, excellent electrochemical properties, and facile process scalability makes the PEDOT NW film particularly promising for portable and flexible electronics.

Graphical abstract: Free-standing and highly conductive PEDOT nanowire films for high-performance all-solid-state supercapacitors

Supplementary files

Article information

Article type
Paper
Submitted
11 Sep 2018
Accepted
07 Dec 2018
First published
07 Dec 2018

J. Mater. Chem. A, 2019,7, 1323-1333

Free-standing and highly conductive PEDOT nanowire films for high-performance all-solid-state supercapacitors

D. Ni, Y. Chen, H. Song, C. Liu, X. Yang and K. Cai, J. Mater. Chem. A, 2019, 7, 1323 DOI: 10.1039/C8TA08814D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements