Redox flow battery based on ion-sieving sulfonated polymer membranes

UK scientists have designed a new type of aqueous organic redox flow battery based on ion-exchange membranes made of a polymer of intrinsic microporosity. The battery showed a very low-capacity decay rate of 0.0335% per day for 2,100 charge-discharge cycles.A group of researchers in the United Kingdom has developed a redox flow battery (RFB) based on aqueous organic-based electrolytes which they claim is capable of operating with remarkable stability. The scientists used ion-exchange membranes with subnanometer ion transport pathways derived from polymers of intrinsic microporosity (PIMs), with ...

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