Organic red/ox flow batteries

In cooperation with University of Chemistry and technology Prague, R&D group of prof. Kosek (http://www.kosekgroup.cz/ ) has developed a new system of batteries suitable for medium-term energy storage. This system is one of the so-called flow batteries, which are widely used for temporary energy storage in places where regular energy supply to the power grid cannot be guaranteed. Such places are, for example, solar and wind power plants, which have production peaks directly dependent on natural influences. Electrolytes based on vanadium compounds are widely used for flow systems at this moment. However, these materials are among the critical imported materials, so attention was paid to promising and highly stable organic substances available from renewable sources.

Subsequently, this concept was optimized. 1,000 kg of the newly developed electrolyte was successfully prepared and subsequently tested for 1 year for electrical energy storage at the La Plana solar and wind farm near Zaragoza, Spain.

Currently, a follow-up cooperation is underway with the company PINFLOW https://www.pinflowes.com/  for the implementation of electrical energy storage in flow batteries in the conditions of medium-sized renewable energy sources in the Czech Republic.