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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

 
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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.

RFB PROTOTYPE

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