Anion-exchange membranes (AEMs) often dehydrate and lose ionic conductivity in ferric chloride solutions used in all-iron or iron−chromium redox flow batteries (RFB). This work studies the change in material and ionic transport properties of three AEMs with similar concentrations of ion exchange sites and hydration numbers upon exposure to ferric chloride/hydrochloric acid solutions.

Read more here: DOI 10.1021/acs.iecr.9b04592



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