Hybrid GDLによる撥水パターンのセル内配置が液水分布に与える影響

抄録

A polymer Electrolyte Fuel Cell (PEFC) has higher power density than other fuel cells and has been partially put into practical use. However, there are many problems and one of most important tasks is the management of water distribution inside PEFC. To realize this management, we can use Hybrid GDL. There are hydrophobic and hydrophilic area alternately on Hybrid GDL. We know Hybrid GDL causes higher performance of PEFC, but we don’t know about the detail why Hybrid GDL do so. Therefore, we visualized inside PEFC with Hybrid GDL during operating by using X-ray CT machine. From these results, we investigated how configuration of Hybrid GDL inside PEFC affects water distribution.