| abstract |
The present invention is intended to provide an excellent chemical stability capable of withstanding a strong oxidizing environment by inhibiting the elution of an additive in a strong acid environment in the operation of a fuel cell, and is soluble in various widely used organic solvents, and is highly processable. It is excellent, and can be mixed with an ionic polymer and an additive, and can suppress phase separation during film formation, and can suppress the formation of a sea-phase phase separation structure or the occurrence of leakage of nitrogen-containing additives during film formation. A polymer electrolyte composition excellent in proton conductivity, excellent mechanical strength, and physical durability under low humidification conditions, and a polymer electrolyte membrane, a membrane electrode assembly, and a solid polymer fuel using the same The polymer electrolyte composition of the present invention contains at least a polymer electrolyte composition containing an ionic polymer (A) and a nitrogen-containing additive (B), characterized in that the nitrogen-containing additive (B) has a specific structure. Expression. Further, the polymer electrolyte membrane, the membrane electrode assembly, and the polymer electrolyte fuel cell of the present invention are characterized by using the polymer electrolyte composition. |