초록 ▼

Improvements to direct feed methanol fuel cells include new protocols for component formation. Catalyst-water repellent material is applied in formation of electrodes and sintered before application of ionomer. A membrane used in formation of an electrode assembly is specially pre-treated to improve

Improvements to direct feed methanol fuel cells include new protocols for component formation. Catalyst-water repellent material is applied in formation of electrodes and sintered before application of ionomer. A membrane used in formation of an electrode assembly is specially pre-treated to improve bonding between catalyst and membrane. The improved electrode and the pre-treated membrane are assembled into a membrane electrode assembly.

대표청구항 ▼

[ What is claimed is:] [1.] A method of forming a fuel cell, comprising:obtaining catalyst material of a type that catalyzes an electrochemical reaction;mixing said catalyst material with a material that has a tendency to repel water to form a catalyst ink;applying said catalyst ink to an electrode

[ What is claimed is:] [1.] A method of forming a fuel cell, comprising:obtaining catalyst material of a type that catalyzes an electrochemical reaction;mixing said catalyst material with a material that has a tendency to repel water to form a catalyst ink;applying said catalyst ink to an electrode backing material to form a catalyst-coated electrode;sintering said catalyst-coated electrode;cooling said catalyst-coated electrode after said sintering;applying an ionomer to said catalyst-coated electrode after said cooling, to form an electrochemical anode element or a electrochemical cathode element;pre-treating a solid electrolyte membrane in order to soften and swell said membrane; andhot press bonding said solid electrolyte membrane, which has been softened and swelled, between said anode element and said cathode element to form a membrane electrode assembly.