燃料電池複合式流道設計與膜電極組製程

New designs for gathering water produced within fuel cell and fabrication of membrane exchange assembles

顧志誠(Chih-cheng Ku)

指導教授 ： 洪勵吾

國立中央大學/工學院/能源工程研究所/碩士(2007年)

摘要

燃料電池以其發電效率高及燃料多元之特性，成為最具潛力的新能源技術，其中又以質子交換膜型燃料電池發展最為興盛。然而質子交換膜式電池內水氾濫之問題，卻影響燃料電池長時間操作之穩定性。
本論文主要開發質子交換膜型燃料單電池零組件之新設計與製造。利用可控制進氣與進料之雙控噴槍，針對傳統膜電極組塗佈機台加以改良，進而提升膜電極組之平整性。結合蛇行、柵狀與指叉流道設計，解決傳統燃料電池設計中內部生成水移除之問題，並在不同的操作條件下，觀察極化曲線之變化以了解此燃料電池設計之特性。且透過八小時操作，並從各區域間裝置汲水裝置觀察水量分佈，了解分布反應區域分布均勻度對於操作之穩定度有正面之影響。

關鍵字

燃料電池設計 ； 質子交換膜

並列摘要

Fuel cell, characterized by high efficiency and plural fuel, becomes the most potential new energy technology. Among all kinds of fuel cells, Proton exchange membrane fuel cell is the most promising one. However, Flooding in fuel cell is the most serious problem for the long time, stable operation.
The experiment demonstrates new designs for gathering water produced within cell and fabrication of membrane exchange assembles.
The fuel cell is operated under different conditions to study the characteristics of new designs. The results reveal when the response area is evenly distributed, the operation is stable.

並列關鍵字

fuel cell design ； Proton exchange membrane fuel cell ； water management

參考文獻

5. T. Shohji,T. Kazuhiro,N. Kousuke,H. Shuichiro,”Water content distribution in a polymer electrolyte membrane for advanced fuel cell system with liquid water supply,” Magnetic Resonance Imaging,vol.23,pp.255-258(2005).

6. A. Hakenjos,H. Muenter,U. Wittstadt,andC.Hebling,” A PEM fuel cell for combined measurement of current and temperature distribution, and flow field flooding” Journal of Power Sources,vol.131,pp.213–216(2004).

7. R. Mosdale and S. Srinivasan,” Analysis of performance and of water and thermal management in proton exchange membrane fuel cells”, Electrochimica Acta,vol.40,pp.413-421（1995）.

8. J. Baschuk and L. Xianguo,” Modeling of polymer electrolyte membrane fuel cells with variable degree of water flooding”,Journal of Power Source,vol.86,pp.181-196(2000).

9. F.N. Buchi,D. Tran, and S. Srinivsan,”Performance of Pem Fuel Cells without External Humidification of the Reactant Gases” Electrochemical Society Proceedings,vol.95,no.23,pp. 226-240（1997）.