Catalyst coated electrolyte membrane, fuel cell including the same, method of preparing the catalyst coated electrolyte membrane

A method of preparing a catalyst coated electrolyte membrane, the method comprising:

• preparing an anode catalyst layer transfer membrane by coating an anode catalyst layer forming composition on a support and then drying the coated composition;
• preparing a cathode catalyst layer transfer membrane by coating a cathode catalyst layer forming composition on a support and then drying the coated composition;
• pre-treating a Na+-electrolyte membrane to obtain an H+-electrolyte membrane;
• pre-heating the anode catalyst layer transfer membrane, the cathode catalyst layer transfer membrane, and the H+-electrolyte membrane under an atmospheric pressure;
• and
• sequentially stacking and hot pressing the preheated anode catalyst layer transfer membrane, the preheated H+-electrolyte membrane, and the preheated cathode catalyst layer transfer membrane to respectively transfer the preheated anode catalyst layer and the preheated cathode catalyst layer to opposite surfaces of the H+-electrolyte membrane.

A method of preparing a catalyst coated electrolyte membrane, comprising:

• preheating one or more electrode catalyst layer transfer membranes and an H+-electrolyte membrane under an atmospheric pressure;
• layering the preheated H+-electrolyte membrane with the one or more preheated electrode catalyst layer transfer membranes, wherein one or more electrode catalyst layers of the respective electrode catalyst layer transfer membranes contact the H+-electrolyte membrane;
• and
• hot pressing the layered membranes to transfer the one or more electrode catalyst layers to the H+-electrolyte membrane.