Influence of anode flow field on mass transport in a air-breathing micro direct methanol fuel cell

In this paper, the inner transport behavior of anode flow field structures (point-type, parallel, single-serpentine and double-serpentine) on a silicon-based micro direct methanol fuel cell (μDMFC) is investigated through both simulations and experiments. A model is established to describe the conce...

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Bibliographic Details
Main Authors: Jie Yang, Zhenyu Yuan, Hongyuan Shen, Xiaoyang Li, Jia Di, Jingyan Mo
Format: Conference Proceeding
Language:English
Subjects:
Anodes
Cathodes
Density measurement
Flow field
Fuel cells
Methanol
Micro direct methanol fuel cell
Power system measurements
Silicon-based technology
Solid modeling
Transport
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Summary:In this paper, the inner transport behavior of anode flow field structures (point-type, parallel, single-serpentine and double-serpentine) on a silicon-based micro direct methanol fuel cell (μDMFC) is investigated through both simulations and experiments. A model is established to describe the concentrations both in the flow field and the diffusion layer, as well as the pressure distribution in the flow field. Furthermore, using micro electromechanical system (MEMS) technology, a silicon-based μDMFC with the active area of 0.64cm 2 is designed and fabricated to evaluate the model verification as well as the corresponding cell performance. In addition, a novel method is introduced by Polydimethylsiloxane (PDMS) to optimize the assembly. The experimental results reveal that the cell patterned with double-serpentine channel exhibits the best cell performance with the maximum power density of 11.4 mW cm -2 .
ISSN:2158-2297
DOI:10.1109/ICIEA.2016.7603887