Perfluorosulfonic acid ionic polymer with triazole group, proton membrane and membrane electrode for fuel cell and preparation method of proton membrane and membrane electrode

• Main Authors: WANG LI, ZHAO BIN, ZHAO SHUHUI, LIU XUNDAO, ZOU YECHENG, ZHANG HENG, ZHANG YONGMING
• Format: Patent
• Language: Chinese; English
• Published: 31.03.2023
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; ELECTRICITY; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention belongs to the field of fuel cell proton membranes and membrane electrodes, and particularly relates to a perfluorosulfonic acid ionic polymer with a triazole group, a proton membrane for a fuel cell, a membrane electrode and a preparation method of the perfluorosulfonic acid ionic polymer. The perfluorosulfonic acid ionic polymer with the triazole group can fundamentally achieve the purpose of resisting attack of free radicals from the polymer, and degradation of the polymer is effectively weakened, so that the chemical stability of the perfluorosulfonic acid ionic polymer is improved. Besides, a triazole structural unit introduced into the obtained polymer structure can regulate and control the ion exchange capacity of the perfluorosulfonic acid ionic polymer, so that the obtained perfluorosulfonic acid ionic polymer can achieve the purpose of effectively regulating and controlling the ion exchange capacity and the chemical stability at the same time; the proton membrane and the membrane elect