Redox flow batteries: Status and perspective towards sustainable stationary energy storage

Redox-flow batteries, based on their particular ability to decouple power and energy, stand as prime candidates for cost-effective stationary storage, particularly in the case of long discharges and long storage times. Integration of renewables and subsequent need for energy storage is promoting effort on the development of mature and emerging redox-flow technologies. This review aims at providing a critical analysis of redox-flow technologies that can potentially fulfill cost requirements and enable large scale storage, mainly aqueous based systems. A comprehensive overview of the status of those technologies, including advantages and weaknesses, is presented. Compiled data on the market permeability, performance and cost should serve, together with the perspective included, to understand the different strategies to reach the successful implementation, from component development to innovative designs.

Automated summary

Redox-flow batteries are prime candidates for cost-effective stationary storage due to their ability to decouple power and energy, particularly in long discharge and storage scenarios. The integration of renewables is driving the development of mature and emerging redox-flow technologies, with this review providing a critical analysis of these technologies. The comprehensive overview of the status, advantages, and weaknesses of these technologies aims to facilitate understanding of different strategies for successful implementation.