Fabrication of Graphite Composite Bipolar Plate for Miniature PEMFCs by Micro Planing with Multi-Cutter

Shi Wei Zhang; Zhen Ping Wan; Yu Qin Shen; Yuan Xian Ou; Yong Tang

doi:10.4028/www.scientific.net/KEM.589-590.617

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 589-590Fabrication of Graphite Composite Bipolar Plate...

Fabrication of Graphite Composite Bipolar Plate for Miniature PEMFCs by Micro Planing with Multi-Cutter

Abstract:

This study explores the feasibility of using a novel process, micro planing with multi-cutter, to fabricate graphite composite bipolar plates of proton exchange membrane fuel cells (PEMFCs). Through the use of multi-cutter, this study succeeds in machining micro flow channels with dimensions of 0.2 mm×0.23 mm×0.4 mm (channel width × rib width × depth size) on graphite composite bipolar plate (21 mm × 80 mm × 1.5 mm), in a reaction area of 10 mm × 60 mm. The graphite composite plates fabricated by multi-cutter are tested for cell performance under varying back-pressures. Results show that the cell performance increase with the rising back-pressures and can be promoted apparently by decreasing the size of flow channels.

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Periodical:

Key Engineering Materials (Volumes 589-590)

Pages:

617-622

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.589-590.617

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Online since:

October 2013

Authors:

Shi Wei Zhang, Zhen Ping Wan, Yu Qin Shen, Yuan Xian Ou, Yong Tang

Keywords:

Flow Field, Graphite Composite Bipolar Plate, Micro Planning, Miniature Fuel Cell, Multi-Cutter

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