A new structure of a passive direct methanol fuel cell

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• 作者：Wukui Zheng ; ^{wukui.zheng@hotmail.com} ; Arho Suominen ^{arho.suominen@utu.fi} ; Jarno Kankaanranta ^{jarno.kankaanranta@utu.fi} ; Aulis Tuominen ^{aultuo@utu.fi}
• 关键词：Direct methanol fuel cell ; Passive fuel cell ; New structure ; Metal mesh ; Ultrasonic welding ; Low power application
• 刊名：Chemical Engineering Science
• 出版年：2012
• 期刊代码：18_00092509
• 类别：ce
• 出版时间：9 July, 2012
• 卷：76
• 期：Complete
• 页码：188-191
• 文件大小：626 K

摘要

In this article, a new structure of a passive, air-breathing, ambient temperature direct methanol fuel cell (DMFC), targeted towards low power applications, is proposed. The structure consists of a metal mesh directly welded onto the Polymer Electrolyte Membrane (PEM), which is then sprayed with the catalyst ink. The fuel cell operates successfully with a 2 mol L^鈭? methanol concentration and produces a power density of 1.52 mW cm^鈭?, which was reached at a current density of 9 mA cm^鈭? at a voltage of 0.169 V. This new structure demonstrates average performance with a simpler structure than conventional solutions, while showing potential in application to low-power application such as sensors.