Advanced Materials for Vanadium Redox Flow Batteries: Major Obstacles and Optimization Strategies

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 21, 2025

Abstract Electrochemical energy storage (EES) demonstrates significant potential for large‐scale applications in renewable storage. Among these systems, vanadium redox flow batteries (VRFB) have garnered considerable attention due to their promising prospects widespread utilization. The performance and economic viability of VRFB largely depend on critical components, including membranes, electrodes, electrolytes. However, as the fundamental materials ion conduction, often struggle effectively balance proton transfer while preventing crossover, enhancing long‐term stability, reducing manufacturing costs. Additionally, inherent structural limitations surface property defects electrode significantly impact improvement V 2+ /V 3+ electrochemical reaction kinetics enhancement power density. Furthermore, composition concentration electrolyte play a crucial role determining cost VRFB, well its density cycling performance. This review analyzes summarizes each component, reviews evaluates latest research advancements material modification, optimization, processes components over past 5 years. Moreover, comprehensive assessment environmental sustainability, feasibility, is presented, aiming provide strategic guidance commercialization VRFB.

Language: Английский

Simply designed sulfonated polybenzimidazole membranes for iron-chromium redox flow battery

Journal of Membrane Science, Journal Year: 2025, Volume and Issue: unknown, P. 123745 - 123745

Published: Jan. 1, 2025

Language: Английский