In polymer electrolyte membrane fuel cell systems, polymer electrolyte membrane is a key part of fuel cell. Polymer electrolyte membrane fuel cells are broadly divided into proton exchange membrane fuel cells and anion exchange membrane fuel cells. In case of proton exchange membrane fuel cells, Nafion membranes are the most used and have excellent performance. However, there are disadvantages of expensive Nafion membranes, expensive platinum catalysts, and low glass transition temperature. Otherwise, in case of alkaline anion exchange membrane fuel cell, anion exchange membrane is used as a poly electrolyte membrane. Despite many advantages, anion exchange membranes have disadvantages Such as low thermal stability and ion conductivity. However, in this study, this thermal stability problem is solved by using poly(ether ether ketone) (PEEK) polymers with excellent thermal stability. To solve the problem of low ion conductivity, the polymer electrolyte membrane with improved ionic conductivity was prepared by polymerization using a monomer introduced with a conductive group. Details, we synthesized the PEEK polymer based polymer with different imidazolium group. Then, we prepared membranes by using polymers with different imidazole contents as follows: membranes were fabricated using a process that involves the evaporation of a cast solution. Next, thermal, chemical and mechanical properties of membranes were analyzed by using various evaluation methods. Based on the evaluation results of the characteristics, it was judged whether it could be applied to the fuel cell.

Alkaline anion exchange membrane fuel cell application of PEEK polymer electrolyte membrane with imidazolium

2019 Fall National Meeting

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