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

Claim 2:
3. A method for fabricating the membrane electrode assembly with high-efficiency water and heat management for the DEFC according to claim 1, comprising gradually fabricating the membrane electrode assembly on an inner surface and an outer surface of the proton-exchange membrane, and comprising the following steps:
a step 1), coating a catalyst layer slurry on the inner surface of the proton-exchange membrane to form the anode catalyst layer, attaching a convex surface A1 of a nanoimprint mold A on the anode catalyst layer, heat-drying, and separating the nanoimprint mold A to obtain the anode catalyst layer of the concave and ordered design;
a step 2), uniformly coating a diffusion layer solution on an inner surface of the anode catalyst layer to form the anode diffusion layer with a smooth outer surface, and heat-drying, wherein an inner surface of the anode diffusion layer is in contact with the anode catalyst layer of the concave and ordered design, and is convex;
a step 3), coating the catalyst layer slurry on the outer surface of the proton-exchange membrane to form the cathode catalyst layer, attaching a concave surface B2 of a nanoimprint mold B on 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 4), 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.