Redox flow batteries (RFBs) have garnered increasing attention for their potential to enable the widespread adoption of renewable electricity. However, a critical need associated with the continued development of this technology involves designing electrode-electrolyte interfaces that exhibit rapid, stable electron transfer kinetics. This targeted review outlines key challenges associated with measuring and enhancing the electron transfer kinetics of established and emerging flow battery active materials. We discuss several promising opportunities for advancing flow battery science and technology using the tools of applied electroanalysis and catalysis science. These challenges and opportunities are broadly relevant for future research directed at advancing the commercial adoption of RFBs for grid-scale energy storage.

氧化还原液流电池（RFB）的潜力使其能够广泛使用可再生电力，因此受到越来越多的关注。然而，与该技术的持续发展相关的关键需求涉及设计表现出快速，稳定的电子转移动力学的电极-电解质界面。这项有针对性的综述概述了与测量和增强已建立和正在出现的液流电池活性材料的电子转移动力学相关的主要挑战。我们讨论了使用应用电分析和催化科学工具推进液流电池科学和技术的一些有前途的机会。这些挑战和机遇与旨在促进将RFB商业化应用到电网规模储能的未来研究广泛相关。