0517 燃料電池用拡散層の性能評価方法と装置の開発研究(S49-1 水素貯蔵およびPEM燃料電池,S49 燃料電池技術)

概要

論文の詳細を見る
Gas Diffusion Layers (GDLs) of polymer electrolyte fuel cells (PEFCs) are exposed to high compression loads in the cell stack. The pore size distribution of GDL varies greatly depending on the compression load. It is essential to evaluate GDL properties under compression conditions typical of a fuel cell. In the present study, air permeability and pore diameter of GDLs were measured under controlled compression conditions. Through-plane permeability of the GDL with a micro porous layer (MPL) decreased significantly, however, in-plane permeability decreased slightly when compared to the GDL without MPL. Under moderate humidity conditions, the PEFC performance deteriorated slightly when using the GDL with MPL rather than without MPL. This indicates that the influence of in-plane air permeability of GDL was more significant on PEFC performance.
社団法人日本機械学会の論文
2007-09-07