ABSTRACT
Redox flow batteries have recently gained a great deal of research interest. They are a promising technology for large-scale energy storage for various grid applications, including renewable integration and grid transmission and delivery services. Compared with other traditional solid-state batteries, redox flow batteries have several unique advantages, such as the decoupling of energy and power, high safety, and modular design. In this chapter, after a brief introduction of the working mechanism and history of redox flow batteries, various redox chemistries, including those recently developed, are reviewed in detail. We then discuss the cell-level components of electrolytes, electrode, and membranes. The chapter is closed with our view of the future research and development directions.
