Flow fields of polymer electrolyte membrane fuel cells (PEMFCs) are used to feed reactant gases over the surface of catalyst layer homogeneously and remove byproduct, water. PEM fuel cells refer to proton exchange membrane (PEM) or polymer electrolyte membrane (PEM) fuel cells where a proton conductive membrane is used as the electrolyte and at the same time as the separator in the electrochemical cell to separate the anode from the cathode. PEM fuel cells have been developed for automotive usage and the large, quick load changes required. Electrolyzer output can quickly rise and fall with intermittent power from a windmill or solar system, as seen in Figure 11.19 This report evaluates a new family of pyridine containing aromatic polyether sulfones as polymer electrolytes for high temperature polymer electrolyte…

Optimization of the flow field design would improve homogeneity of the gas distribution and pressure drop values resulting in higher power density values.

Polymer electrolyte membrane (PEM) electrolysis is the electrolysis of water in a cell equipped with a solid polymer electrolyte (SPE) that is responsible for the conduction of protons, separation of product gases, and electrical insulation of the electrodes. A significant advantage of PEM electrolyzers and fuel cells is their extremely rapid response time over a large load range.