A prototype of metallic PEM fuel cell with thin stainless steel bipolar plates is tested for their potential applications in portable electronic products. The bipolar plate is produced by UV-LIGA and electrochemical micro-machining (EMM) technologies. The cathode electrode, the tool, is the mirror image of flow channels. It is produced by the UV-LIGA technology and the dimension is 200μm in width and 500μm in height for the intension to fabricate a serpentine flow channel of 500μm width and 200μm depth. The flow channels on 0.6mm thick SS 316L plates are fabricated by EMM process within 30 seconds with effective area of 625mm2. From the results of cell performance tests, the peak power densities are 0.67 W/cm2 at 0.45 V. During the 5 hours of cell life test, the cell was operated with a constant load of 0.4 V. The peak power density is stable. It just dropped slightly from 0.7 W/cm2 to 0.65 W/cm2. The results demonstrate the UV-LIGA and EMM technologies is an efficient method to fabricate flow channel for stainless steel bipolar plates.
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ASME 2008 6th International Conference on Fuel Cell Science, Engineering and Technology
June 16–18, 2008
Denver, Colorado, USA
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-4318-1
PROCEEDINGS PAPER
A EMM Fabrication Method of Metallic Bipolar Plates for PEM Fuel Cell
Yu-Ming Lee,
Yu-Ming Lee
Yuan Ze University, Taoyuan, Taiwan, R.O.C.
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Shuo-Jen Lee,
Shuo-Jen Lee
Yuan Ze University, Taoyuan, Taiwan, R.O.C.
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Cheng-Hong Shih
Cheng-Hong Shih
Yuan Ze University, Taoyuan, Taiwan, R.O.C.
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Yu-Ming Lee
Yuan Ze University, Taoyuan, Taiwan, R.O.C.
Shuo-Jen Lee
Yuan Ze University, Taoyuan, Taiwan, R.O.C.
Cheng-Hong Shih
Yuan Ze University, Taoyuan, Taiwan, R.O.C.
Paper No:
FuelCell2008-65160, pp. 959-964; 6 pages
Published Online:
June 22, 2009
Citation
Lee, Y, Lee, S, & Shih, C. "A EMM Fabrication Method of Metallic Bipolar Plates for PEM Fuel Cell." Proceedings of the ASME 2008 6th International Conference on Fuel Cell Science, Engineering and Technology. ASME 2008 6th International Conference on Fuel Cell Science, Engineering and Technology. Denver, Colorado, USA. June 16–18, 2008. pp. 959-964. ASME. https://doi.org/10.1115/FuelCell2008-65160
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