Paper Title:
A Silicon Micro Direct Methanol Fuel Cell Demonstrator Using Microfabrication Techniques
  Abstract

. This paper presents the design, microfabrication and characterizations of a silicon based, single-cell μDMFC demonstrator for micro/portable electrical power applications. The flow field plates of the fuel cell were made on 2“silicon wafers utilizing wet-etching and sputtering techniques. The fuel cell was assembled in an epoxy-based packaging process. Results show that a lower internal ohmic resistance of the fuel cell can be achieved with a thicker current collecting layer (CCL). Influence of the operating conditions on the μDMFC performance was also investigated. It was found that 2M methanol can yield a better fuel cell performance because it provided a better compromise between the methanol crossover and mass transportation during operation. On the other hand, a 4-time increase of the peak power density of the fuel cell was achieved by increasing the methanol temperature from 20°C to 80°C.

  Info
Periodical
Materials Science Forum (Volumes 628-629)
Edited by
Dongming Guo, Jun Wang, Zhenyuan Jia, Renke Kang, Hang Gao, and Xuyue Wang
Pages
423-428
DOI
10.4028/www.scientific.net/MSF.628-629.423
Citation
J. S. Liang, C. Liu, L. J. Sun, "A Silicon Micro Direct Methanol Fuel Cell Demonstrator Using Microfabrication Techniques", Materials Science Forum, Vols. 628-629, pp. 423-428, 2009
Online since
August 2009
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Price
$32.00
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