(71h) A Kinetic Model for Redox Active Organic Cycling

Lower material costs of redox active organic molecules (ROMs) have led to their increased use in redox flow batteries. Quantification of their electrochemical performance is important for selecting high performing battery chemistries. While ROM stability can be quantified by decay kinetics, quantifying cyclability is imprecise, requiring ad hoc metrics like cycle life. Currently, no correlation has been identified between stability and cyclability, an additional challenge for molecular development. We developed a kinetic model to interpret cyclability through intrinsic parameters, which quantifies a relationship between cycle life and decay kinetics. With this model, we examined dialkoxyarene cyclability and potential degradation pathways to provide recommendations for improving cyclability.