In this thesis, we are looking for the temperature dependance of the polarization curve of a PEM fuel cell and the optimal temperature for the most efficient activity of a low temperature PEM fuel cell.
The measurements in this thesis were conducted at the Chemistry institute in Ljubljana and have been used to analyze the activation protocol of fuel cells and to find the temperature dependance of the polarization curves. Temperature has a big impact on the highest attainable voltage of a fuel cell, as well as an impact on the quality of electrode kinetics. The results show, that nor too high or too low temperatures result in less optimal performance of PEMFC. The voltage drop in measurements at 55 °C and 85°C reached around 20 % of the reference measurement value.
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