Proton Exchange Membrane (PEM) Fuel Cells

Proton Exchange Membrane (PEM) fuel cells are devices that generate electricity by combining hydrogen fuel with oxygen from the air. Inside, hydrogen flows over a catalyst, releasing protons (positive particles) and electrons. The membrane allows only protons to pass through, creating a flow of electrons that generate electricity. The electrons travel through a circuit to power devices, then recombine with protons and oxygen to produce water as the only byproduct. PEM fuel cells are efficient, produce clean energy with only water and heat as emissions, and are used in applications like vehicles and portable power systems.