Ion membrane for flow battery

Can ion exchange membranes improve redox flow batteries?

FLOW BATTERY - Researchers have developed a new class of ion exchange membranes, designed to enhance the efficiency and durability of redox flow batteries (RFBs).

Are ion conductive membranes suitable for flow batteries?

The structure-performance relationship of ion conductive membranes in flow batteries. The current limitation and future directions for ion conductive membranes. Flow batteries are one of the most promising techniques for stationary energy storage applications, benefiting from their high safety, high efficiency and long cycle life.

Are size-selective ion-exchange membranes effective in flow batteries?

To overcome this issue, here we report size-selective ion-exchange membranes prepared by sulfonation of a spirobifluorene-based microporous polymer and demonstrate their efficient ion sieving functions in flow batteries.

What is an ion conducting membrane (ICM)?

An ion conducting membrane (ICM) is necessary to separate the anolyte and catholyte, while conducting charge-balanced ions to form a complete electric circuit simultaneously. However, the commonly used commercial perfluorinated sulfonated ion exchange membranes suffer from low selectivity and high cost.

Why do redox flow batteries have membranes?

The membranes show dual transport of cations and hydroxide ions, which enhances the performance of a range of redox flow batteries in terms of energy efficiencies, power densities, and operational current densities, surpassing the limits of previously reported membranes.

What is an ion conductive membrane?

As a key component of flow batteries, an ion conductive membrane (ICM) plays a vital role in isolating active species from anolyte and catholyte, while transferring charge careers to complete the internal circuit.