Biredox ionic liquids with solid-like redox density in the liquid state for high-energy supercapacitors.

@article{Mourad2017BiredoxIL,
  title={Biredox ionic liquids with solid-like redox density in the liquid state for high-energy supercapacitors.},
  author={El{\'e}onore Mourad and Laura Coustan and Pierre Lannelongue and Dodzi Zigah and Ahmad Mehdi and Andr{\'e} Vioux and Stefan A. Freunberger and Fr{\'e}d{\'e}ric Favier and Olivier Fontaine},
  journal={Nature materials},
  year={2017},
  volume={16 4},
  pages={
          446-453
        }
}
Kinetics of electrochemical reactions are several orders of magnitude slower in solids than in liquids as a result of the much lower ion diffusivity. Yet, the solid state maximizes the density of redox species, which is at least two orders of magnitude lower in liquids because of solubility limitations. With regard to electrochemical energy storage devices, this leads to high-energy batteries with limited power and high-power supercapacitors with a well-known energy deficiency. For such devices… 
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Ionic Liquids for Supercapacitor Applications
  • M. Salanne
  • Materials Science
    Topics in Current Chemistry
  • 2017
TLDR
In this review, the advantages and the inconvenience of using ionic liquids in supercapacitors are discussed and some innovative approaches using mixtures of Ionic liquids or redox-active ions will also be critically addressed.
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