Anion exchange membrane electrolysis
Anion exchange membrane (AEM) electrolysis is the electrolysis of water that utilises a semipermeable membrane that conducts hydroxide ions (OH−) called an anion exchange membrane. Like a proton-exchange membrane (PEM), the membrane separates the products, provides electrical insulation between electrodes, and conducts ions.
Source: Wikipedia — Anion exchange membrane electrolysis (CC BY-SA 4.0)