Redox flow technology

volterion redox flow batteries are based on a stack construction (power unit) and a tank filled with electrolyte (storage unit) which were developed by Fraunhofer UMSICHT. During the charging process the electrical energy is converted into chemical energy and stored in the electrolyte. During the discharging process the reaction is reversed so that the electrical energy can be withdrawn again. The technology has been designed for the application of different electrolytes.


In comparison to existing constructions the novel design with completely weldable components and significant material reduction enables the production of considerably more compact, more cost-efficient, and more efficient stacks. The welding of the stack components is fully automated.


volterion modules can be customized to individual requirements and are equipped with a complete plant and control technology (plug and play).


Compact volterion-stack