Title: Investigations on new Fe–Mn redox couple based aqueous redox flow battery
Abstract: A new class of redox flow batteries involving Fe3+/Fe2+ and Mn3+/Mn2+ redox couples in the anolyte and catholyte, respectively being investigated. The proposed novel design of Fe–Mn redox flow battery exhibits significant Coulombic efficiency of around 96%, at a current density of 7 mA cm−2. The Fe–Mn cell shows good capacity retention even after 100 cycles with the coulombic efficiency retaining at ∼95%. Further, high concentration anolyte and catholyte was used which helps to improve the practical energy density of the system (>40 Wh L−1). The overall cost of the system is expected to be significantly lower than the existing redox flow battery systems. Thus, the low-cost and eco-friendly nature of these active species make this flow battery to be a potential candidate for large scale electricity storage applications which further facilitates the full utilisation of the intermittent renewable energy resources.
Publication Year: 2020
Publication Date: 2020-04-15
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 23
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