PROTON EXCHANGE MEMBRANES (PEM) DESIGNED TO OPERATE IN A REDUCED HUMIDITY ENVIRONMENT

摘要：

Hydrocarbon-based (HC) polymer electrolyte membrane (PEM) materials are sought as replacements for commercial perfluorosulfonic acid-type materials (PFSA) for reasons of cost reduction, potentially higher operating temperatures, and reduction in fuel crossover, but they face several challenges before they can be effectively used in fuel cell devices. Control of dimensional swelling is one important aspect to minimize dimensional mismatch at the membrane electrode assembly interface. For their use in automotive applications, where normal operating temperatures of 80°C are exceeded, another challenge is that many HC-PEMs tend to show a marked decrease in conductivity in a reduced-humidity environment, resulting in a loss of fuel cell performance.

作者: Michael D. Guiver

作者单位: National Research Council Canada Institute for Chemical Process & Environmental Technology, Ottawa, ON, K1A 0R6 Hanyang University WCU Department of Energy Engineering, Seoul, Korea

会议类型: 国际会议

会议名称: The 7th International Green Energy Conference & The 1st DNL Conference on Clean Energy(第七届绿色能源国际会议暨第一届DNL洁净能源会议(IGEC)

会议地点: 大连

会议语种:英文

页码: 8

在线出版日期: 2012-05-28（万方平台首次上网日期，不代表论文的发表时间）