The ion-exchange membrane electrolyzer differs from the diaphragm-free electrolyzer by incorporating an ion-exchange membrane between the anode and cathode. The type of membrane is selected based on different materials suited for various applications and operating environments. Initially applied in the chlor-alkali industry, ion-exchange membrane electrolyzers have in recent years been adopted in other fields, such as water treatment, organic electrosynthesis, industrial hydrogen production, electrolysis of sodium chloride to produce chlorine-based disinfectants, and acid-base recovery via solution electrolysis.