DualFlow develops a radically new energy conversion and storage concept that combines water electrolysis, battery storage and co-production of decarbonized chemicals into one single hybrid technology using water soluble redox mediators as energy transfer vectors.
What is a redox dual-flow battery?
A redox dual-flow battery is distinct from a traditional redox flow battery (RFB) in that the former includes a secondary energy platform, in which the pre-charged electrolytes can be discharged in external catalytic reactors through decoupled redox-mediated hydrogen evolution reaction (HER) and oxygen evolution reaction (OER).
What is dualflow & how does it work?
The EU-funded DualFlow project will introduce a radically new energy conversion and storage concept. The breakthrough idea involves combining battery storage, hydrogen generation and production of useful chemicals into a single hybrid system using water-soluble redox mediators as energy transfer vectors.
The performances of the vanadium-manganese RFB were evaluated and compared to a conventional vanadium-vanadium system. Catalytic reactors were designed to carry out the chemical discharge of the electrolytes toward redox-mediated water splitting. The essential prerequisite for the redox dual-flow battery is to select suitable redox mediators.
Who invented the flow battery system?
The principle of the flow battery system was first proposed by L. H. Thaller of the National Aeronautics and Space Administration in 1974, focusing on the Fe/Cr system until 1984.
This technology strategy assessment on flow batteries, released as part of the Long-Duration Storage Shot, contains the findings from the Storage Innovations (SI) 2030 strategic initiative.
What is a dual-circuit RFB?
The dual-circuit RFB has the advantage of offering two discharging modes and to store energy beyond the energy capacity of the electrolytes in the form of renewable hydrogen energy storage.