NDLI: Effect of cathode gas flow patterns on performance of micro direct methanol fuel cell

Content Provider	IEEE Xplore Digital Library
Author	Yufeng Zhang Hong He Qi Fan Bo Zhang Xiaowei Liu Li Tian Kai Tan
Copyright Year	2010
Description	Author affiliation: Department of Microelectronics, Harbin Institute of Technology, Harbin, China (Yufeng Zhang; Hong He; Qi Fan; Bo Zhang; Xiaowei Liu; Li Tian) \|\| Department of Electronic Technology, Harbin University, Harbin, 150086, China (Kai Tan)
Abstract	In this paper, an active oxygen-supplying micro direct methanol fuel cell (µDMFC) and an air-breathing µDMFC were designed, fabricated and tested. Stainless steel plates with the thickness of 200µm were chosen to fabricate the current collectors by the micro stamping. The 5-layered membrane electrode assembly (MEA) was fabricated by the catalyst coated membrane (CCM) method. The polymethyl methacrylate (PMMA) plates were manufactured into fixer plates with the heat-resistant treatment. Silicon rubber gaskets were employed to keep the cells from liquid leakage, which relieves the fixing pressure during clamping and prevents short circuit. The effects of different methanol concentrations and supply velocities on the performance of both µDMFCs were studied. The active oxygen-supplying µDMFC exhibited a maximum output power density of $65.66mW/cm^{2}$ at 40°C, while the air-breathing µDMFC provided a maximum output power density of $27.11mW/cm^{2}$ at 20°C. And experiments were carried out to compare the effects of the two cathode gas flow patterns on cell performance. The results revealed that the active oxygen-supplying µDMFC exhibits higher performance than the air-breathing µDMFC at the cost of more complex system structure and parasitic power consumption.
Starting Page	326
Ending Page	329
File Size	1055403
Page Count	4
File Format	PDF
ISBN	9781424455119
e-ISBN	9781424455133
DOI	10.1109/RCSLPLT.2010.5615302
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-07-28
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Active oxygen-supplying Fuel cells Air-breathing Fluid flow Steel Anodes µDMFC Power generation Methanol Cathodes
Content Type	Text
Resource Type	Article

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