Patent ID: 11862830
Assignee: JIANGSU UNIVERSITY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 5:
6. A method for fabricating the membrane electrode assembly with high-efficiency water and heat management for the DEFC according to claim 1, comprising fabricating the membrane electrode assembly through step-by-step dip coating on an anode support tube, and comprising the following steps:
a step 1), uniformly coating a diffusion layer solution on an outer side of the anode support tube to form the anode diffusion layer, attaching a concave surface A2 of a nanoimprint mold A on the anode diffusion layer, heat-drying, and separating the nanoimprint mold A to obtain the anode diffusion layer of a convex and ordered design;
a step 2), coating a catalyst layer slurry on a surface of the anode diffusion layer to form the anode catalyst layer with a smooth outer surface, and heat-drying, wherein an inner surface of the anode catalyst layer is in contact with the surface of the anode diffusion layer of the convex and ordered design, and is concave;
a step 3), hot-pressing an activated proton-exchange membrane tightly on the outer surface of the anode catalyst layer;
a step 4), coating the catalyst layer slurry on a surface of the proton-exchange membrane to form the cathode catalyst layer, attaching a concave surface B2 of a nanoimprint mold B to the cathode catalyst layer, heat-drying, and separating the nanoimprint mold B to obtain the cathode catalyst layer of the convex and ordered design; and
a step 5), coating the diffusion layer solution on an outer surface of the cathode catalyst layer to form the cathode diffusion layer with a smooth outer surface, and heat-drying, wherein an inner surface of the cathode diffusion layer is in contact with the cathode catalyst layer of the convex and ordered design, and is concave.