Development of a Passive Hydrogen PEMFC Stack for 3C Products

• Main Authors: Te-Hsuan Lee, 李德軒
• Other Authors: Long-Jeng Chen
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/na2p6a

碩士 === 國立中山大學 === 機械與機電工程學系研究所 === 102 === In this thesis a portable passive hydrogen proton exchange membrane fuel cell (called PEMFC) stack is developed to drive or charge 3C products without any transformer. We divide our research into two stages. One is the characteristics study of a 2-cell PEMFC stack. The other is the characteristics studies and the applications of a 16-cell PEMFC stack. In the 2-cell stack, the effects of water content within proton electrode membrane on the performance of the stack are studied. In general, the cathode of MEA completely expose in the atmosphere so that the water is easily diffusing and evaporating into air. This phenomenon will cause water shortage and reduce the conductivity of proton within the membrane. Therefore, we add a water chamber within anode to supply water to make-up the evaporated water during long-period operation. The next, the effects of the storage methods of MEA on the stability and the performance are studied. After studies of a 2-cell stack, we design and make a 16-cell stack. The rating voltage of this stack is 5 V. The maximum power output is about 10 W. The range of the power can drive or charge the most 3C products. The 16-cell stack can be series and/or parallel connected with different number of cells so that it can drive or charge a mobile phone, a pad, and a digital photo player without a transformer. The future commercial stack will directly drive or charge any 3C products with power less than 10 W.