e-journal

Conducting-polymer-based supercapacitor devices and electrodes

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a b s t r a c t
Supercapacitor electrodes and devices that utilise conducting polymers are envisaged to bridge the
gap between existing carbon-based supercapacitors and batteries to form units of intermediate specific
energy. This review looks at the major conducting polymer materials, namely, polyaniline, polypyrrole,
polythiophene and derivatives of polythiophene, as well as composites of these materials with carbon
nanotubes and inorganic battery materials. Various treatments of the conducting polymer materials to
improve their properties are considered and comparisons are made with other supercapacitor materials
such as carbon and with inorganic battery materials. Conducting polymers are pseudo-capacitive materials,
which means that the bulk of the material undergoes a fast redox reaction to provide the capacitive
response and they exhibit superior specific energies to the carbon-based supercapacitors (double-layer
capacitors). In general conducting polymers are more conductive than the inorganic battery materials
and consequently have greater power capability. On the downside, conducting polymers swell and contract
substantially on charge and discharge, respectively. Consequently, cycle-life is poor compared with
carbon-based supercapacitors which generally only charge via adsorption and desorption of ions (giving
typically a few thousand cycles for conducting polymers compared with >500 000 cycles for carbon-based
devices).
Keywords: Supercapacitor, Ultracapacitor, Conducting polymer, Cycle-life, Specific energy, Specific power

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Informasi Detail

Judul Seri

Journal of Power Sources

No. Panggil

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Penerbit

: Elsevier B.V. All rights reserved., 2010

Deskripsi Fisik

Journal of Power Sources 196 (2011) 1–12

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

yuli/agus

Versi lain/terkait

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