METHOD FOR FABRICATING GAS-DIFFUSION ELECTRODE AND METHOD FOR FABRICATING ELECTROCHEMICAL DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a method for forming a catalyst layer having a high gas permeability on the surface of a gas-diffusion electrode comprising carbon sheets. SOLUTION: A catalyst layer is formed on the surface of the carbon sheets by applying a dispersion liquid containing a catalyst and fibrous carbon to the carbon sheets by means of the spray-dry method, dropping method, or the like. Herewith, a catalyst layer of high gas permeability is formed, so that the energy efficiency of an electrochemical device using such a gas-diffusion electrode can be enhanced.