The Study on the Fabrication of a PEMFC Electrode by the Stamping Method

• Main Authors: Ta-yueh Yen, 顏大越
• Other Authors: Lee Ming-San
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/4u6ms3

碩士 === 國立中山大學 === 機械與機電工程學系研究所 === 95 === Before studying to increase the catalyst utilization is one way to improve the performance of a fuel cell. But because it wastes a lot of time on making the hydrophobic pillared micro structures (HMPS) process. So this study aims to develop a fast and effective manufacturing method in order to increase the reaction surface area and catalyst utilization. The experiment has used the metal mesh stamping method to make the specific structure so as to increase the reaction surface area. The size of the metal mesh was the line path 35μm, and the net square 70μm*70μm. The pressure was 300kg/cm2 and 500kg/cm2 that made the stamping structure in order to increase the reaction surface area. When the reaction surface area nearly increased 27 %, the performance also nearly increased 27 %; And when the reaction surface area nearly increased 36 %, the performance also nearly increased 36 %. So the increment of its performance nearly accorded with the increment of the reaction surface area. This method has saved a lot of time in the production process. Furthermore, the catalyst loading of cathode is halved in this experiment, the performance of fuel cell have no obviously decreased or reduced by half. As a result, the utilization of catalyst is raised.