METHOD FOR MAKING A GAS-DIFFUSION LAYER.

摘要

The invention relates to a gas-diffusion layer comprising the following series of steps: supplying an ink containing at least solid carbon-based elements, a solvent and a film-forming agent; depositing the ink onto a substrate using a printing technique, so as to form a film; and fritting the film at a temperature between 200°C and 500°C so as to form the gas-diffusion layer. The ink contains at least ground carbon fibers, wherein the weight percent of the ground carbon fibers is between 5% and 75%, and the total weight percent is calculated from all the elements contained in the ink, except for the solvent.