Proton exchange membrane, preparation method thereof and fuel cell

• Main Authors: ZHUANG ZHI, CHENG YUE, HAN WEN, LIU MIAOMIAO, WU HUIKANG, AO BEI, KE XI, CHOI YEO-OK
• Format: Patent
• Language: Chinese; English
• Published: 19.12.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention provides a proton exchange membrane, a preparation method thereof and a fuel cell, and belongs to the technical field of fuel cells. The proton exchange membrane comprises a porous base membrane, a resin material layer and an outer resin layer, the resin material layer is compounded on pores and the surface of the porous base membrane, and the resin material layer comprises fluorosulfonic acid resin and nano sulfonated graphene; the outer side resin layer is located on the surface of the resin material layer, and the outer side resin layer comprises perfluorinated sulfonic acid resin and nano sulfonated graphene; wherein the polyhydroxy compound is condensed with carboxyl groups and/or hydroxyl groups in the resin material layer and the outer side resin layer respectively. According to the proton exchange membrane, the resin material layer and the outer resin layer are doped with the nano sulfonated graphene, and the polyhydroxy compound is introduced to be respectively condensed with carboxyl a