Redox-flow batteries (RFBs) seem to be tailor-made for the storage of sustainably generated electrical energy and are, in particular combined with photovoltaics and wind farms, well suited for the establishment of smart grids, which are essential to render the ‘Energiewende’. Therefore, an all-organic symmetric RFB with a bipolar molecule containing two redox-active nitronyl nitroxide units, connected via a tetraethylene glycol chain, as a charge-storage material, was developed. The synthesized molecule was electrochemically characterized in detail and its potential as organic redox-active material for an application in a symmetric RFB was investigated in a static and in a pumped laboratory test cell as well.
- Tino Hagemann
- Jan Winsberg
- Ulrich S Schubert
