High temperature PEM fuel cells

作者：Zhang Jianlu; Xie Zhong; Zhang Jiujun; Tang Yanghua; Song Chaojie; Navessin Titichai; Shi Zhiqing; Song Datong; Wang Haijiang; Wilkinson David P; Liu Zhong Sheng; Holdcroft Steven

来源：Journal of Power Sources, 2006, 160(2): 872-891.

DOI：10.1016/j.jpowsour.2006.05.034

• high temperature
• PEMFCs
• development
• testing and diagnostics

There are several compelling technological and commercial reasons for operating H-2/air PEM fuel cells at temperatures above 100 degrees C. Rates of electrochemical kinetics are enhanced, water management and cooling is simplified, useful waste heat can be recovered, and lower quality reformed hydrogen may be used as the fuel. This review paper provides a concise review of high temperature PEM fuel cells (HT-PEMFCs) from the perspective of HT-specific materials, designs, and testing/diagnostics. The review describes the motivation for HT-PEMFC development, the technology gaps, and recent advances.
HT-membrane development accounts for similar to 90% of the published research in the field of HT-PEMFCs. Despite this, the status of membrane development for high temperature/low humidity operation is less than satisfactory. A weakness in the development of HT-PEMFC technology is the deficiency in HT-specific fuel cell architectures, test station designs, and testing protocols, and an understanding of the underlying fundamental principles behind these areas. The development of HT-specific PEMFC designs is of key importance that may help mitigate issues of membrane dehydration and MEA degradation.

• 出版日期2006-10-6