Fabrication of Woodceramics Separator for Disk Type Polymer Electrolyte Fuel Cell

Abstract

In the present research, the woodceramics separator for a disk type polymer electrolyte fuel cell (PEFC) was fabricated to develop a new application of woodceramics. The woodceramics could be suitable for the material because the separator of the disk type PEFC required not only high conductivity but also high gas permeability. A cotton paper was adopted as a raw material. It was confirmed that the disk type PEFC using the woodceramics separator generated an electric power. It was, furthermore, found that the output characteristics of the PEFC were influenced by the degree of impregnation for phenolic resin used in the fabrication process of the separator. It was also pointed out that the optimum degree of impregnation was about 28 wt%.