Revealing and Mitigating Crossover-Driven Side Reactions in Ferrocyanide-Based Redox Flow Batteries.

ABSTRACT: There is an urgent need for new energy storage solutions that will support the decarbonization of the electricity grid. Aqueous organic redox flow batteries are low-cost, long-duration energy storage devices that are in the process of being commercialized for this application; however, their operational lifetime is limited by electrolyte decomposition and crossover. These degradation processes are generally studied separately, so the relationship between the two is poorly understood. Previously, it had been assumed that the main contribution to battery capacity fade was electrochemical degradation of the electrolytes. Using the on-line ¹H NMR crossover characterization method we developed previously, we reveal the first experimental evidence for crossover-driven side reactions i

SUBMITTER: Latchem EJ 

PROVIDER: S-EPMC12498410 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature