Issue 73, 2014

Recent development of metal hydroxides as electrode material of electrochemical capacitors

Abstract

Electrochemical capacitors, also known as supercapacitors, are energy storage devices, characterized by rapid rates of charging and discharging and high power density. In recent years, electrochemical capacitors have attracted significant attention as ‘bridges’ for the power/energy gap between traditional capacitors and batteries/fuel cells. The integrated performance of an electrochemical capacitor is essentially determined by its electrode materials. This is a review of electrode materials for electrochemical capacitors, chiefly concerning transition metal hydroxides. In this work, we focused particularly on recently published reports using cheap metal hydroxides as electrode materials for electrochemical capacitors, based on classification of metal hydroxide by composition and microstructure. Some important experimental data on this issue are indicated and summarized. Furthermore, a brief discussion of future development, challenges, and opportunities in this area is also provided.

Graphical abstract: Recent development of metal hydroxides as electrode material of electrochemical capacitors

Article information

Article type
Review Article
Submitted
07 Jul 2014
Accepted
05 Aug 2014
First published
05 Aug 2014

RSC Adv., 2014,4, 38893-38917

Author version available

Recent development of metal hydroxides as electrode material of electrochemical capacitors

J. P. Cheng, J. Zhang and F. Liu, RSC Adv., 2014, 4, 38893 DOI: 10.1039/C4RA06738J

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