本文主要目的是設計製作堆疊式直接甲醇燃料電池堆之模組構裝及效能探討，其動機是為因應可攜式3C產品的發展，以設計出可自給自足其並提供負載之可攜式燃料電池模組，其設計製作的燃料電池堆模組包含燃料電池電堆與周邊設備系統整合，並以實驗測試量測其效能。在論文中首先以一般壓克力單電池置具做流道板之蛇型流道進行改良設計，以增加氣泡排除與反應面積比做效能影響探討，以取得最佳參數之新型流道。第二部份主要是設計與製作的燃料電池電堆，使用堆疊設計與新式流道組合出4-cell之堆疊式直接甲醇燃料電池電堆，並對其做鎖合磅力參數探討，之後更進一步將燃料電池電堆之尺寸縮小並對其做甲醇流量參數與電堆尺寸參數探討。最後將週邊配備與燃料電池做系統整合，並觀測其燃料電池模組之使用實用性與應用便利性，以完成研發燃料電池模組之目的。 The main purpose of this thesis is to develop a modulized stack direct methanol fuel cell (DMFC) and to integrate stack DMFC with the balance of plant (BOP). The motivation of this study is to develop a portable stack DMFC that could supply the power not only to BOP, but also to external loadings. In the first part of this thesis, three types of DMFC flow channels, including the traditional serpentine flow channel; the smooth corner serpentine flow channel and the unilateral crooked serpentine flow channel were fabricated. Experimental investigations into the DMFC polarization curves with these three flow channel combinations were conducted in a single fuel cell. The best performance combination was then used to design a 4-cell stack DMFC. The second part of this thesis is to conduct the 4-cell stack DMFC performance tests under different confer pound of the lock, methanol flow rate and size of the stack fuel cell. Results show that the newly designed 4-cell stack DMFC could provide a promising application for portable electronics.
