POROUS ELECTRODE BASE MATERIAL AND PROCESS FOR PRODUCING THE SAME

摘要

An electrode base material for solid polymer fuel cell that overcomes the problems of prior art and is most suitable for use in assembling of an inexpensive compact cell stack; and a process for producing the electrode base material. There is provided a porous electrode base material of <= 150 mum thickness, comprising carbon staple fibers of 3 to 9 mum diameter dispersed in random directions within a substantially two-dimensional plane, these carbon staple fibers bound to each other by an amorphous resin carbide, further these carbon staple fibers crosslinked to each other by a filamentous resin carbide. It is also intended to provide an electrode base material for solid polymer fuel cell that overcomes the problems of prior art, realizing low cost, smooth supply and discharge of gas and water for use in reaction and exertion of cell performance. Thus, further, there is provided a porous electrode base material of <= 150 mum thickness, comprising carbon staple fibers of 3 to 9 mum diameter dispersed in random directions within a substantially two-dimensional plane, these carbon staple fibers bound to each other by an amorphous resin carbide, further these carbon staple fibers crosslinked to each other by a network resin carbide of <= 3 mum minimum fiber diameter.