Quinone and viologen derivatives for aqueous redox flow battery electrolytes

摘要

Vanadium redox flow batteries,with several MWh-scale installations worldwide[1],proved to be a safe,reliable and long-lasting energy storage technology.However,high and fluctuating price of vanadium stimulate the seek for alternative active compounds.Organic redox couples are particularly attractive[2,3] as their relevant properties can be tailored by modification of their chemical structure.Moreover,they can be produced at high volumes and low costs e.g.,from oil residues.