Development of high temperature polymer electrolyte membranes (HT-PEM) in the fuel cell vehicles is investigated in this study. At first, the issues in HT-PEM mainly are dealt with the limitation of fluorinated and sulfonated membranes. Perovskite oxide-type structures functionalized with ligands via coordination chemistry are also emphasized in this study. Potential features of these membranes, including high proton conductivity, hydration of the membranes, and relatively low cost are discussed. The drawbacks of membranes modified with various organic and inorganic materials are also emphasized. The possibility of achieving significant increases in the proton transfer, and hydration of perovskite oxide–organic polymer membranes for use above 100℃ is deeply discussed. Modification of HT-PEM may confer remarkable properties for vehicles with environment friendly.

• K. Dhanabalan(전남대학교 환경에너지공학과, Department of Environment & Energy Engineering, Chonnam National University)
• 정호영(전남대학교 환경에너지공학과, Department of Environment & Energy Engineering, Chonnam National University) | Ho-Young Jung