Anion binder for solid alkaline fuel cell, method of preparing the same and membrane-electrode assembly

摘要

The present invention concerns the preparation of an anion binder for a solid alkaline fuel cell which enhances durability to electrochemical reactions and makes the production of electrode slurry easy. A method of preparing an anion binder for a solid alkaline fuel cell includes: (A) mixing an electrolytic monomer of quaternary ammonium salts having a cation group, a bisacrylicamide crosslinking agent having a tertiary amino group, and water together by stirring; (B) mixing the mixture with a photoinitiator; (C) interposing the solution between polyethylene terephthalate films and irradiating the solution with ultraviolet light for crosslinking and polymerization; and (D) pulverizing crosslinked polymerized resin to a nano size.

主权项

1. A method of preparing an anion binder for a solid alkaline fuel cell, the method comprising:
(A) mixing an electrolytic monomer of quaternary ammonium salts having a cation group, a bisacrylicamide crosslinking agent having a tertiary amino group, and water together by stirring; (B) mixing the mixture with a photoinitiator; (C) interposing the solution between polyethylene terephthalate films and irradiating the solution with ultraviolet light for crosslinking and polymerization; and (D) pulverizing crosslinked polymerized resin to a nano size, wherein (D) comprises:
(D1) primarily pulverizing the crosslinked polymerized resin to a size of 40 to 60 μm by a grinding pulverizer; and(D2) dispersing and secondarily pulverizing the powder obtained in the primary pulverization to a size of 150 to 250 nm by a wet pulverizer.