Thermal conductivity and temperature profiles of the micro porous layers used for the polymer electrolyte membrane fuel cell

Considering a MPL thermal conductivity of 0.1 W K−1 m−1, a MPL thickness of 45 μm, a current density of 10 kA m−2 (1.0 A cm−2), liquid water (production and sorption), and a 30 μm membrane it was found that the MPL is responsible for a temperature increase of up to 2 °C. This contribution can be lowered by integrating the MPL into the porous transport layer.