Proton Exchange Membrane (PEM)

A Proton Exchange Membrane (PEM) is a special type of material used in fuel cells to generate electricity. It acts as a selective barrier that allows protons (positively charged particles) to pass through while blocking electrons and gases like hydrogen and oxygen. In a PEM fuel cell, hydrogen fuel is split into protons and electrons; the membrane lets protons move toward the oxygen side, creating an electrical flow that can power devices. PEMs are made from durable, conductive polymers that enable efficient and clean energy production, commonly used in transportation, portable power, and backup energy systems.