ORGANIC NON-AQUEOUS REDOX FLOW BATTERY
Efficient storage of electricity remains one of the greatest challenges faced by the scientific community in the quest for clean energy. Redox-Flow-Batteries (RFBs), in which the energy is stored in liquid electrolyte solutions that flow through a battery of electrochemical cells during charge and discharge, is one of the promising technologies. Organic RFBs are a promising alternative to the expensive metal base batteries. Yet, these suffer from low efficiency and robustness, small open circuit potential (OCV), and cross-contamination. The goal of this project is to develop symmetric RFBs in the electrolyte are stable and photoactive heterocyclic carbenium with large OCV
H-CELL AS RFB MODEL
We study the electrochemical stability of our electrolytes by bulk electrolysis charge/ discharge cycling using a three-electrode cell. The custom-made H-cell with a porous glass frit to separate both compartments served as model redox flow cell setup.
We use a non-aqueous media which provides large open circuit potential (our electrolyte has a OCV > 2V). The symmetrical nature of our electrolyte results in no cross-contamination, long cyclability, and the use of cheap porous membranes. Using our RFB prototype we study the viability of our electrolyte ions for NAORFB.
Work in progress
Prof. Gianetti and Dr. Moutet have co-founded a company named CarbeniumTec which goal is to develop further organic redox flow battery for long duration storage.