| 초록 |
In polymer electrolyte membrane fuel cells, mass transfer is a factor to consider to improve performance. In particular, the flow field of bipolar plates is an important factor for mass transfer, such as the supply of reactants and the removal of products. Various kind of porous materials have been studied as flow fields for improving mass transport and enhancing cell performance. Among them, metal foams have a three-dimensional pore structure and have advantages such as high porosity and good electrical conductivity. Copper foam is relatively inexpensive and can produce a variety of structures. In this study, the effects on copper foam structures such as thickness, area density, and pore size were identified. |
