Experimental Analysis of Operating Performance of PEM Fuel Cell(I)——Effect of Temperature on Performance of PEM Fuel Cell

The purpose of the paper is to test the impact of different operating temperature on the performance of proton exchange membrane fuel cell,create the systematic experimental data under different operating temperature,and theoretically research into the interrelationship between the temperatures.By the testing system of PEM fuel cell monomer,experiments with different cell temperature,different anode and cathode humidification temperatures have been carried out.Results of experimental data are transacted by origin software,applications to the cell polarization curves on the different temperatures was gained.Thus the pictures visually describe experimental results.Conclusions are drawn as follows:fixing all the other operating parameters in addition to the temperatures,the impacting sequence of the fuel cell temperature and the humidification temperature of the cathode and anode to fuel cell performance is also fixed.Under low current density,operating temperature does not affect fuel cell performance,but only geometric parameters do.There exists two transitional zones in the cell polarization curve,the transitional zones emerge by certain rules.There are mutual restricting relationships between the three operating temperatures of fuel cell.