| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a porous electrode substrate for a solid polymer fuel cell which increases gas permeability, which is compact, and which is suitable for assembling a cell stack, and a manufacturing method of this electrode substrate. <P>SOLUTION: A method of producing the porous electrode substrate includes: a process of fabricating a precursor sheet by dispersing carbon short fibers, organic polymer short fibers and an organic polymer compound in a two-dimensional plane; a process of cleaning the precursor sheet with a solvent which dissolves the organic polymer short fibers but dose not dissolve the organic polymer compound; a process of impregnating a carbonizable resin into the precursor sheet after cleaning; and a process of carbonizing the precursor sheet impregnated with the carbonizable resin at temperatures of ≥1,000°C. <P>COPYRIGHT: (C)2009,JPO&INPIT |
