Stability Evaluation for Polymer Electrolyte Membrane Eletrolyzer

Abstract:

Recently, polymer electrolyte membrane (PEM) electrolyzers consist of the layered structure of membrane and electrode assembly (MEA), titanium flow field plate, gasket, end plate, and others. Among these components, MEA and titanium flow field plate take account for most of the device cost. The cost and time for manufacturing device can be reduced with the gasket-integrated 3-D mesh-applied PEM electrolyzer (Fig. 3), while maintaining the same performance as that of the existing titanium flow field plate devices. The 3-D mesh is found to perform the roles of the existing flow plate which ensures the smooth fluid flow and uniform power supply. The voltage shows 19.3V at current density (0.5 A/cm²), a little lower than 19.6V that is 10 times of 1.96V which is the average cell voltage at the same current density. In addition, hydrogen production and stability for performance are equal to or higher than that of the device for titanium flow field plate.

• Periodical: Applied Mechanics and Materials (Volumes 260-261)
• Pages: 443-448
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.260-261.443
• Online since: December 2012
• Authors: Hong Gun Kim, Hee Jae Shin, Yun Ju Cha, Sun Ho Ko, Hyun Woo Kim, Lee Ku Kwac
• Keywords: Gasket-Integrated 3-D Mesh, MEA, PEM Electrolyzer, Titanium Flow Field Plate

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