Redox flow battery based transmission system for increasing renewable energy utilisation and electric vehicle adoption

Abstract

The global urgency to decrease fossil fuel usage, calls to address the constraints in renewable energy(RE) based charging of electric vehicles(EV) and increase RE utilisation immediately. Here, we analyse using redox flow battery(RFB) in EVs’ in combination with a novel method of electrical energy transportation and storage. Suitability of RFB for use in the same is examined in comparison to Li-ion battery. Taking India as an example, financial viability analysis is done using budget allocated for the Green corridor project as a benchmark. The combined solution facilitates EV adoption, grid support initiatives and absorption of RE. While energy density of RFB electrolyte has increased significantly the simultaneous increase in viscosity is the major challenge in establishing the system proposed. The analysis demonstrates the need for focused research into developing low viscosity RFB electrolytes to attain the full potential of the technology.