We offer proton exchange membrane which is necessary in allowing the passage of ions to the anode and cathode sides of the fuel cell. Our membrane is available in different thickness, 1 mil, 2 mil, 5 mil, and 7 mil. We offer our membrane in its dry state or if you prefer we can pre-treat the membrane in smaller sizes.
These films are used as separators in electrochemical cells requiring high ionic conductivity, for example in fuel cells and water electrolyzers. Product names include: N115, N117.
DuPont dispersion-casts or extrudes its Nafion-brand membranes of perfluorosulfonic acid polymer/polytetrafluoroethylene (PTFE) copolymer. For example, its NRE-211 and NRE-212 films, in thicknesses of 25 to 51 m, function to selectively transport positively charged ions across the cell junction in a Proton Exchange Membrane (PEM) fuel cell.