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Issue 9, 2010
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Energy storage in electrochemical capacitors: designing functional materials to improve performance

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Abstract

Electrochemical capacitors, also known as supercapacitors, are becoming increasingly important components in energy storage, although their widespread use has not been attained due to a high cost/performance ratio. Fundamental research is contributing to lowered costs through the engineering of new materials. Currently the most viable materials used in electrochemical capacitors are biomass-derived and polymer-derived activated carbons, although other carbon materials are useful research tools. Metal oxides could result in a step change for electrochemical capacitor technology and is an exciting area of research. The selection of an appropriate electrolyte and electrode structure is fundamental in determining device performance. Although there are still many uncertainties in understanding the underlying mechanisms involved in electrochemical capacitors, genuine progress continues to be made. It is argued that a large, collaborative international research programme is necessary to fully develop the potential of electrochemical capacitors.

Graphical abstract: Energy storage in electrochemical capacitors: designing functional materials to improve performance

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Article information


Submitted
24 Mar 2010
Accepted
21 Jun 2010
First published
02 Aug 2010

Energy Environ. Sci., 2010,3, 1238-1251
Article type
Perspective

Energy storage in electrochemical capacitors: designing functional materials to improve performance

P. J. Hall, M. Mirzaeian, S. I. Fletcher, F. B. Sillars, A. J. R. Rennie, Gbolahan. O. Shitta-Bey, G. Wilson, A. Cruden and R. Carter, Energy Environ. Sci., 2010, 3, 1238
DOI: 10.1039/C0EE00004C

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