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All fullerene-based cells for non-aqueous redox flow batteries

Jochen Friedl, Maria. A. Lebedeva, Kyriakos Porfyrakis, Ulrich Stimming*,and Thomas W. Chamberlain*,§

†School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK

‡Department of Materials, University of Oxford, 16 Parks Road, Oxford, OX1 3PH, UK

§Institute of Process Research and Development, School of Chemistry, University of Leeds, Leeds, LS2 9JT, UK

graphsbstrcat fullerene

Redox flow batteries have the potential to revolutionize our use of intermittent sustainable energy sources such as solar and wind power by storing the energy in liquid electrolytes. Our concept study utilizes a novel electrolyte system, exploiting derivatised fullerenes as both analyte and catholyte species in a series of battery cells, including a symmetric, single species system which alleviates the common problem of membrane crossover. The prototype multi electron system, utilizing molecular based charge carriers, made from inexpensive, abundant and sustainable materials, principally, C and Fe, demonstrates remarkable current and energy densities and promising long-term cycling stability. The stability of the derivatised fullerenes is assed post-cycling by Matrix Assisted Laser Desorption/Ionization.


Last modified: Thu, 14 Dec 2017 09:38:55 GMT