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Issue 3, 2016
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Carbon materials for high volumetric performance supercapacitors: design, progress, challenges and opportunities

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Abstract

Volumetric performance, a much more reliable and precise parameter for evaluating the charge-storage capacity of supercapacitors compared with gravimetric performance, has aroused more and more interest in recent years owing to the rapid development of miniaturized, portable and wearable electronic devices as well as electric vehicles. Various carbon materials are widely used as electrode materials in supercapacitors. However, their intrinsically low specific capacitance and relatively low bulk density lead to a relatively low volumetric performance, significantly limiting their future application. This critical review points out the crucial importance of volumetric performance and reviews recent achievements of high volumetric performances obtained through the rational design and development of novel carbon-based materials. Particular emphasis is focused on discussing the factors influencing the volumetric performance of carbon materials from a structural design point of view. We then make an in-depth summary of various promising approaches used to make significant research breakthroughs in recent years. Current challenges, future research directions and opportunities in this fascinating field of supercapacitors with high gravimetric and volumetric performances are also discussed.

Graphical abstract: Carbon materials for high volumetric performance supercapacitors: design, progress, challenges and opportunities

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Publication details

The article was received on 11 Oct 2015, accepted on 03 Dec 2015 and first published on 03 Dec 2015


Article type: Review Article
DOI: 10.1039/C5EE03109E
Energy Environ. Sci., 2016,9, 729-762

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    Carbon materials for high volumetric performance supercapacitors: design, progress, challenges and opportunities

    Q. Wang, J. Yan and Z. Fan, Energy Environ. Sci., 2016, 9, 729
    DOI: 10.1039/C5EE03109E

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