Issue 5, 2014

Hierarchical nanostructures of polypyrrole@MnO2 composite electrodes for high performance solid-state asymmetric supercapacitors

Abstract

A solid-state high performance flexible asymmetric supercapacitor (ASC) was fabricated. Its anode is based on organic–inorganic materials, where polypyrrole (PPy) is uniformly wrapped on MnO2 nanoflowers grown on carbon cloth (CC), and its cathode is made of activated carbon (AC) on CC. The ASC has an areal capacitance of 1.41 F cm−2 and an energy density of 0.63 mW h cm−2 at a power density of 0.9 mW cm−2. An energy storage unit fabricated using multiple ASCs can drive a light-emitting diode (LED) segment display, a mini motor and even a toy car after full charging. The high-performance ASCs have significant potential applications in flexible electronics and electrical vehicles.

Graphical abstract: Hierarchical nanostructures of polypyrrole@MnO2 composite electrodes for high performance solid-state asymmetric supercapacitors

Supplementary files

Article information

Article type
Paper
Submitted
02 Nov 2013
Accepted
15 Dec 2013
First published
02 Jan 2014

Nanoscale, 2014,6, 2922-2928

Hierarchical nanostructures of polypyrrole@MnO2 composite electrodes for high performance solid-state asymmetric supercapacitors

J. Tao, N. Liu, L. Li, J. Su and Y. Gao, Nanoscale, 2014, 6, 2922 DOI: 10.1039/C3NR05845J

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