Energy storage in electrochemical capacitors: designing functional materials to improve performance
- 2 August 2010
- journal article
- perspective
- Published by Royal Society of Chemistry (RSC) in Energy & Environmental Science
- Vol. 3 (9), 1238-1251
- https://doi.org/10.1039/c0ee00004c
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.Keywords
This publication has 136 references indexed in Scilit:
- Energy-storage technologies and electricity generationEnergy Policy, 2008
- R&D considerations for the performance and application of electrochemical capacitorsElectrochimica Acta, 2007
- Performance of templated mesoporous carbons in supercapacitorsElectrochimica Acta, 2007
- Pseudocapacitive behaviour of RuO2 in a proton exchange ionic liquidElectrochemistry Communications, 2006
- Effects of electrochemical-deposition method and microstructure on the capacitive characteristics of nano-sized manganese oxideElectrochimica Acta, 2006
- Electrolytic conductivity of four imidazolium-based room-temperature ionic liquids and the effect of a water impurityThe Journal of Chemical Thermodynamics, 2005
- Phase transition and decomposition temperatures, heat capacities and viscosities of pyridinium ionic liquidsThe Journal of Chemical Thermodynamics, 2005
- Effects of heteroatoms on electrochemical performance of electrode materials for lithium ion batteriesElectrochimica Acta, 2002
- Activated carbons and double layer capacitanceElectrochimica Acta, 1996
- Organic aerogels from the polycondensation of resorcinol with formaldehydeJournal of Materials Science, 1989