Issue 26, 2014

A high performance hybrid asymmetric supercapacitor via nano-scale morphology control of graphene, conducting polymer, and carbon nanotube electrodes

Abstract

An asymmetric supercapacitor, exploiting ultra-high density aligned activated graphene flakes as the positive electrode and nm-scale conformal coating of a conducting polymer poly(ethylenedioxythiophene) on aligned carbon nanotubes as the negative electrode, is introduced. By complementary tailoring of the asymmetric electrodes, the layered device exhibits a wide 4 V electrochemical window, with the highest power density (149 kW Lāˆ’1) and energy density (113 Wh Lāˆ’1) reported thus far for carbon-based supercapacitors.

Graphical abstract: A high performance hybrid asymmetric supercapacitor via nano-scale morphology control of graphene, conducting polymer, and carbon nanotube electrodes

Supplementary files

Article information

Article type
Communication
Submitted
11 Apr 2014
Accepted
01 May 2014
First published
01 May 2014

J. Mater. Chem. A, 2014,2, 9964-9969

Author version available

A high performance hybrid asymmetric supercapacitor via nano-scale morphology control of graphene, conducting polymer, and carbon nanotube electrodes

Y. Zhou, N. Lachman, M. Ghaffari, H. Xu, D. Bhattacharya, P. Fattahi, M. R. Abidian, S. Wu, K. K. Gleason, B. L. Wardle and Q. M. Zhang, J. Mater. Chem. A, 2014, 2, 9964 DOI: 10.1039/C4TA01785D

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