PEM Fuel Cell Basics and Computational Modeling
Fuel cells directly produce power through the electrochemical reaction of a fuel and oxygen. A typical setup places the fuel and oxidizer streams on opposite sides of a semipermeable barrier (Figure 3.1). In the most popular type of fuel cell, Proton Exchange Membrane or Polymer Electrolyte Membrane (PEM) fuel cells, this barrier is, as the names imply, a polymer electrolyte that is permeable to protons (H+ atoms). It is, however, impermeable to electrons. This means that electrons are compelled to travel around the membrane through wires, creating an electrical current that can be utilized.
Ü. Ö. Köylü et al., "PEM Fuel Cell Basics and Computational Modeling," Hydrogen Energy and Vehicle Systems, CRC Press, Jan 2012.
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