High-performance carbon paper for fuel cell and preparation method and application thereof

Abstract

The invention discloses high-performance carbon paper for a fuel cell and a preparation method and application thereof. The method comprises the following steps: (1) adding fiber raw materials into water, stirring and mixing uniformly to obtain mixed slurry I; then sequentially adding a surfactant, polyoxyethylene and a polyvinyl alcohol solution into the mixed slurry I and stirring evenly to obtain mixed slurry II; then making the mixed slurry II into a wet paper web and drying to obtain a carbon paper precursor, wherein the fiber raw materials include viscose fiber, cellulose nanofiber and carbon fiber; and (2) dipping the carbon paper precursor into an ethanol solution of modified phenolic resin, drying, coating the carbon paper precursor with a hydrophobic coating, and performing hot pressing and heat treatment to obtain the high-performance carbon paper for the fuel cell. The carbon paper obtained by the method has better electrical conductivity and physical properties, and can beapplied to the field of fuel cells.

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