温度对PEM燃料电池性能的影响

目的研究质子交换膜燃料电池运行中的电池温度、两极加湿温度对电池性能的影响．方法运用质子交换膜电池单体的测试系统进行了不同工作温度、气体加湿温度对电池性能影响的测试实验．结果得到了3个温度在实验条件下。在一定范围、一定间隔内的所有数据组合．结论固定除温度外的所有操作参数条件下。电池工作温度、阴极和阳极的加湿温度对电池性能的影响顺序也是固定的；低电流工作下．电池性能不受操作温度的影响，只与其几何参数有关；电池的极化曲线中存在两个过渡区，过渡区是在一定范围内出现的．实验结果对质子交换膜燃料电池结构的优化和设计具有重要的指导意义．

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.