Shuttle suppression in room temperature sodium-sulfur batteries using ion selective polymer membranes

Abstract

A sodiated Nafion-coating on a porous polypropylene backbone was used as a cation selective separator for room temperature sodium-sulfur batteries. The capacity of the cells after 20 cycles could be enhanced by 75% to 350 mA h gsulfur−1 using the new separator. © 2014 Royal Society of Chemistry.