Catalyst complex for fuel cells and a method for manufacturing an electrode including the same

A method for manufacturing an electrode for fuel cells including a catalyst complex, the method comprising:

• preparing a first coated catalyst by coating a first catalyst with a first ionomer binder;
• preparing a second coated catalyst by coating a second catalyst with a second ionomer binder having an equivalent weight (EW) which is 92% or less of an equivalent weight (EW) of the first ionomer binder;
• preparing a catalyst ink by mixing the first coated catalyst, the second coated catalyst and a solvent;
• and
• manufacturing the electrode using the catalyst ink,
• wherein the first catalyst comprises a metal catalyst, and
• wherein the second catalyst comprises a metal oxide.

A method for manufacturing an electrode for fuel cells including a catalyst complex, the method comprising:

• preparing a first mixed solution comprising a first catalyst, a first ionomer binder, and a first solvent;
• preparing a second mixed solution comprising a second catalyst, a second ionomer binder, and a second solvent;
• preparing a second coated catalyst by performing drying and heat treatment of the second mixed solution;
• preparing a catalyst ink by mixing the first mixed solution and the second coated catalyst;
• and
• manufacturing the electrode using the catalyst ink,
• wherein the first catalyst comprises a metal catalyst, and
• wherein the second catalyst comprises a metal oxide.