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Madec, L., Bouvree, A., Blanchard, P., Cougnon, C., Brousse, T., Lestriez, B., Guyomard, D. & Gaubicher, J. (2012) In situ redox functionalization of composite electrodes for high power-high energy electrochemical storage systems via a non-covalent approach. Energy Environ. Sci. 5 5379–5386. 
Added by: Laurent Cournède (2016-03-10 21:28:40)
Type de référence: Article
DOI: 10.1039/c1ee02490f
Numéro d'identification (ISBN etc.): 1754-5692
Clé BibTeX: Madec2012
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Catégories: ST2E
Mots-clés: black, capacitors, carbon nanotubes, chemistry, Li-ion batteries, Lithium batteries, negative electrodes, performance, polymers, surfaces
Créateurs: Blanchard, Bouvree, Brousse, Cougnon, Gaubicher, Guyomard, Lestriez, Madec
Collection: Energy Environ. Sci.
Consultations : 8/434
Indice de consultation : 2%
Indice de popularité : 0.5%
Résumé     
The growing demand for new global resources of clean and sustainable energy emerges as the greatest challenge in today's society. For numerous applications such as hybrid vehicles, electrochemical storage systems simultaneously require high energy and high power. For this reason, intensive researches focus on proposing alternative devices to conventional Li battery and supercapacitors. Here, we report a proof of concept based on non-covalent redox functionalization of composite electrodes that may occur either during the calendar life or during the device functioning. The active material, a multi-redox pyrene derivative, is initially contained in the electrolyte. No additional benchmarking step is therefore required, and it can, in principle, be readily applied to any type of composite electrode (supercapacitors, battery, semi-solid flow cell etc.). Accordingly, a practical carbon fiber electrode that is 10 mg cm(-2) loaded can deliver up to 130 kW kg(electrode)(-1) and 130 Wh kg(electrode)(-1) with negligible capacity loss over the first 60 000 charge/discharge cycles.
Added by: Laurent Cournède  
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