Spraying Method of Fuel Cell Proton Exchange Membrane Catalyst

Usually, the catalyst of the fuel cell proton exchange membrane is generally coated on the proton exchange membrane by screen printing, that is, the mixed catalyst slurry is coated on the drum, and the proton exchange membrane is provided with a 200-250 mesh wire mesh, so that After rolling, the catalyst can be rolled on the proton exchange membrane. In this method, due to the large pore size of the metal wire mesh, the catalyst can be coated on the proton exchange membrane through the metal wire mesh without being sufficiently pulverized and mixed, and the combination of the catalyst and the proton exchange membrane is not uniform, resulting in the electrochemical performance of the fuel cell. The effect is often less stable.

Our company provides a method for spraying fuel cell proton exchange membrane catalyst. Using this method, the catalyst coated on the proton exchange membrane is fully mixed and the coating is uniform, which ensures the stable electrochemical performance and good electrochemical effect of the fuel cell. The membrane electrode prepared by the ultrasonic coating method has a high degree of automation, high efficiency and low manufacturing cost, which can meet the production expansion. Utilization of platinum in membranes sprayed with ultrasonics is about 90%, reducing material consumption by up to 50% and reducing overspray, saving expensive catalyst inks.