Fuel cell membrane electrode with catalyst layer with groove structure and preparation method of fuel cell membrane electrode

The invention discloses a fuel cell membrane electrode with a catalyst layer with a groove structure and a preparation method, and belongs to the technical field of proton exchange membrane fuel cell membrane electrode preparation, a polytetrafluoroethylene membrane with an adjustable groove structure is used as a back bottom membrane, and uniformly dispersed catalyst slurry is coated on the back bottom membrane to form a catalyst layer structure, so that the catalyst layer structure is formed. And carrying out hot-pressing transfer printing on the catalyst layer to the proton exchange membrane. The catalyst layer has a uniformly distributed groove structure, and the gas diffusion capability of the membrane electrode catalyst layer is greatly improved, so that the electrochemical performance of the proton exchange membrane fuel cell is effectively improved. 本发明公开了一种具有沟槽结构催化层的燃料电池膜电极及制备方法，属于质子交换膜燃料电池膜电极制备技术领域，通过使用可调沟槽结构的聚四氟乙烯膜作为背底膜，将分散均匀的催化剂浆料涂敷于背底膜上形成催化层结构，再将催化层热压转印至质子交换膜上。本发明催化层拥有均匀分布的沟槽结构，极大改善了膜电极催化层气体扩散能力，