Perfluorinated ionic polymer with phenanthroline side group, synthesis method of perfluorinated ionic polymer, proton exchange membrane for fuel cell and membrane electrode

• Main Authors: WANG LI, GONG YUXIN, DING HAN, LIU XUNDAO, ZOU YECHENG, ZHANG HENG, ZHANG YONGMING
• Format: Patent
• Language: Chinese; English
• Published: 31.03.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention relates to a perfluorinated ionic polymer with a phenanthroline side group, a synthesis method of the perfluorinated ionic polymer, and a proton exchange membrane and a membrane electrode for a fuel cell. The chemical structure of the perfluorinated ionic polymer provided by the invention retains the structural advantages of perfluorosulfonyl fluoride resin, and meanwhile, a phenanthroline structural unit for capturing or quenching free radicals is introduced into the structure by adopting a chemical grafting mode, so that the purpose of resisting attack of the free radicals can be fundamentally achieved from the polymer, the degradation of the polymer is effectively weakened, and the service life of the polymer is prolonged. Therefore, the chemical stability of the perfluorinated ionic polymer is improved. Besides, a phenanthroline structural unit is introduced into the perfluorinated ionic polymer structure, the ion exchange capacity of the perfluorinated ionic polymer can be regulated and con