Highly Durable MEA for PEMFC Under High Temperature and Low Humidity Conditions

摘要

In the development of polymer electrolyte membrane fuel cells (PEMFC), the durability of the membrane is one of the most important issues.rnFor automotive utilization of PEMFC, high-temperature operations between 110-120℃ and low humidity conditions are targeted. For the membranes of PEMFC, perfluorosulfonic acid (PFSA) polymers are extensively used due to their considerably higher chemical stability over hydrocarbon polymers. However, conventional PFSA polymers have glass transition temperatures around 80℃, which is subject to critical breakdown of the membrane at high temperatures.