The invention discloses a preparation method of a fuel
cell membrane
electrode, which comprises the following steps: first catalyst
slurry is applied to a side A of a
proton exchange membrane by spraying; a transfer medium is coated with second catalyst
slurry and dried; the dried transfer medium is attached to the
proton exchange membrane spray-coated with the first catalyst
slurry, the side, spray-coated with the second catalyst slurry, of the transfer medium faces an uncoated side B of the
proton exchange membrane, the side A, spray-coated with the first catalyst slurry, of the proton exchange membrane is covered with a protective film, a
heat transfer printing process is adopted, and after
hot pressing, the transfer medium is peeled off to obtain a fuel
cell membrane
electrode. Throughspray
coating first and then
transfer printing, the problem that it is not easy to turn over and lay a membrane and the proton exchange membrane is easy to roll up in a single ultrasonic
spray coating method is avoided, the production efficiency is improved, the problem of high interface resistance between the catalytic layer and the proton exchange membrane in a single
transfer printing method is avoided, and the ohmic impedance loss is reduced.