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Efficient storage mechanisms for building better supercapacitors

Salanne, Mathieu and Rotenberg, Benjamin and Naoi, Katsuhiko and Kaneko, Katsumi and Taberna, Pierre-Louis and Grey, Clare P. and Dunn, Bruce and Simon, Patrice Efficient storage mechanisms for building better supercapacitors. (2016) Nature Energy, 1. 1-10. ISSN 2058-7546

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Official URL: http://dx.doi.org/10.1038/NENERGY.2016.70

Abstract

Supercapacitors are electrochemical energy storage devices that operate on the simple mechanism of adsorption of ions from an electrolyte on a high-surface-area electrode. Over the past decade, the performance of supercapacitors has greatly improved, as electrode materials have been tuned at the nanoscale and electrolytes have gained an active role, enabling more efficient storage mechanisms. In porous carbon materials with subnanometre pores, the desolvation of the ions leads to surprisingly high capacitances. Oxide materials store charge by surface redox reactions, leading to the pseudocapacitive effect. Understanding the physical mechanisms underlying charge storage in these materials is important for further development of supercapacitors. Here we review recent progress, from both in situ experiments and advanced simulation techniques, in understanding the charge storage mechanism in carbon- and oxide-based supercapacitors. We also discuss the challenges that still need to be addressed for building better supercapacitors.

Item Type:Article
Additional Information:Thanks to Springer editor. The definitive version is available at http://www.springer.com/fr/ The original PDF of the article can be found at Nature Energy website : http://www.nature.com/nenergy/
HAL Id:hal-01486991
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Commissariat à l'Energie Atomique et aux énergies alternatives - CEA (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
French research institutions > Institut National de la Recherche en Informatique et en Automatique - INRIA (FRANCE)
Other partners > Tokyo University of Agriculture and Technology - TUAT (JAPAN)
Other partners > University of Cambridge (UNITED KINGDOM)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Université de Picardie Jules Verne (FRANCE)
Other partners > Shinshu University (JAPAN)
Other partners > University of California-Los Angeles - UCLA (USA)
Other partners > Université Paris-Sud 11 (FRANCE)
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Deposited By: cirimat webmestre
Deposited On:10 Mar 2017 15:49

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