| 초록 |
The GDL plays an important role that determines the performance of the fuel cell. It is a medium through which hydrogen and oxygen are transferred and serves as a passage through which water generated by the electrochemical reaction is discharged. The GDL tissue undergoes a compressive loading during the stacking process. This leads to changes in fiber content, porosity and resin content due to compressive load, which affects the mechanical, chemical and electrical properties of GDL and ultimately determines fuel cell performance. In this study, the geometry of GDL was modeled according to the compression ratios. We predicted the effective properties according to the change of GDL carbon fiber content, matrix content, pore porosity. Predicting the effective material properties of the material according to the compression ratios can not only consider the stacking direction of the material during the stack assembling process. |
