Research on Potentiostatic Accelerated Test Method for Fuel Cell Metal Bipolar Plate

Abstract

In order to test the performance of metal bipolar plates more accurately and accurately, it is necessary to further study and discuss its accelerated test methods. Based on the electrochemical corrosion mechanism and the high potential state existing in the fuel cell, this paper focuses on the feasibility of accelerating the evaluation of the performance of the metal bipolar plate by changing the electrochemical parameters. As shown in the experiment, the method of " potentiostatic i-t curve versus time integrating" proposed in this paper can more accurately quantitatively analyze the long-term corrosion resistance of samples under different working conditions. The combination of high potential and accelerated solution has a significant acceleration effect. The metal corrosion can be accelerated by raising the test potential, and the surface topography changes under different corrosion stages of the metal can be observed in a short time.