Written by an industry-leading scientist, Proton Exchange Membrane Fuel Cells explains the theoretical foundations of PEM fuel cells in relation to practical design and operation to not only help beginners grasp the essentials, but also guide industry professionals in tackling technical challenges. Useful to scientists, researchers, students, academics, and practicing engineers, the book covers the fundamentals, materials, components, modules, system architecture, applications, and current developmental status; offers real-world examples; and provides insight into advancing this sustainable clean technology.