New cross-linked PVA based polymer electrolyte membranes for alkaline fuel cells

► Cheap and easy method for anion exchange membrane preparation for alkaline fuel cells. ► Anion exchange membranes prepared from a cross-linked poly(vinyl alcohol) (PVA) doped with KOH. ► Membranes exhibit long-term ionic conductivity and chemical stability (>50 days). ► Maximum power density in alkaline fuel cell of 72 mW/cm2 at room temperature.