Conductive carbonaceous fiber woven cloth and solid polymer-type fuel cell

摘要

The present invention provides a carbonaceous fiber woven fabric suitable for use as a gas diffusion layer material for solid polymer electrolyte fuel cells. Namely, the conductive carbonaceous fiber woven fabric of the present invention contains carbonaceous fiber yarns having a metric count of 16 to 120, a carbonaceous fiber content of at least 60% by weight, a weight per unit area of 50 to 150 g/m², a woven cloth thickness of 0.05 to 0.33 mm, and an in-plane volume resistivity of no more than 0.1 Omegacm.