本論文主要在研發提高氫燃料電池效率和使用壽命並降低材料成本及縮短製作時間的方法。電極製作與MEA壓製條件會對氫燃料電池(PEMFC)性能產生重大的影響。本研究首先探討觸媒漿(ink)製備的影響，並且找出較佳的調配比例，接著探討MEA壓製條件對PEMFC性能與壽命的影響，並找出較佳的MEA壓製條件，最後進行各項性能測試。測試項目包含不同電流時的電池能穩定操作範圍，此外也探討保存方式是否會造成性能與壽命影響，以尋求最佳的保存方式。最後針對不同環境下，電池的啟動特性加以探討。
實驗結果發現以陰陽極Pt loading分別為0.65與0.5mg/cm2，分散劑含量123mg/cm2，Nafion 30wt%，熱壓條件在130OC、100kg/cm2、90s，以上條件所製作出來的MEA性能相對較佳，在陽極通入錶壓0.1kg/cm2的純氫氣、陰極為自然進氣下，最大功率密大可達200mW/cm2以上。在保存方式測試的實驗結果發現，MEA暴露在大氣下保存時，電池會因缺水而使性能下降，雖然可在使用前把MEA足夠噴濕可讓性能恢復，但要有足夠時間吸收水分，這對使用者並不方便，目前發現在長時間不使用電池時，最佳保存方式就是將陰極噴濕並用封蓋封住保存。

The purpose of this thesis is to enhance battery efficiency and service life, reduce material cost, and shorten the time in making electrode. The manufacturing processes of the electrodes and the MEA pressing methods may profoundly influence the performance of a hydrogen fuel cell. This research first investigates the effect of the catalyst ink preparation method in order to find the best formulated proportion, then explores the effect of MEA pressing conditions on the PEMFC performance and its service life to find a better pressing criteria, and finally figures out the optimum criteria for manufacturing MEA and executing the performance test. Test items include the stability in different electric current density, of which the purpose is to define a stable operating range for the battery. In addition, the effect of the storage conditions on the performance and service life is also studied to find the best storage strategy. Finally, the starting characteristics under different ambient conditions are also studied in this thesis.
The experimental results show that the better performance occurs in the cathode and anode Pt loading were about 0.65 and 0.5mg / cm2, respectively, the dispersant content is 123mg / cm2, Nafion is 30wt%, and the MEA hot-pressing condition is 130OC, 100kg/ cm2, 90s. With the anode pure hydrogen at gauge pressure 0.1kg / cm2 and the cathode air breathing, the maximum generated power density can be up to 200mW / cm2. The experimental result reveals that the performance degradation occurs due to the lack of water in membrane when the storage of the MEA is exposed in ambient. By spraying a sufficient amount of water before using it, MEA may recover the performance to approximately its initial value, but it is inconvenient. If you don't use the battery for a period, the best way to preserve stack will be to spray water in cathode and blocked it away from ambient.

論文審定書 i
誌謝 ii
摘要 iii
Abstract v
目錄 vii
圖目錄 x
符號說明 xv
第一章 緒論 1
1.2 燃料電池概述 1
1.2.1 燃料電池回顧 1
1.2.2 現有燃料電池種類 2
1.3 文獻回顧 5
1.4 研究目的 10
第二章 質子交換膜燃料電池理論分析與基本架構 11
2.1燃料電池工作原理 11
2.2 燃料電池熱力分析 12
2.3 燃料電池極化現象 14
2.4 燃料電池理論燃料消耗量 15
2.5 質子交換膜燃料電池基本構造 16
2.5.1 膜電極組 ( Membrane Electrode Assembly ; MEA ) 16
2.5.2 電流收集器 18
2.6燃料電池的水生成與蒸散 21
2.6.1 水通量平衡與交換膜內部含水量的關係 21
2.6.2 質子交換膜燃料電池中水的反應生成量與蒸散量計算 22
第三章 PEMFC元件製作與實驗設備 25
3.1MEA的製作 25
3.2新型有結構非均質碳纖維束製程 29
3.3單電池零件展示 34
3.4實驗設備 34
第四章 實驗方法與步驟 39
4.1 實驗方法 39
4.2實驗步驟 39
4.2.1性能量測 39
4.3 穩定性量測 41
第五章 結果與討論 42
5.1實驗條件 42
5.2 觸媒漿(ink)成份含量對電池性能的影響 43
5.2.1 觸媒Pt塗佈量對性能的影響 43
5.2.2 觸媒漿的分散劑含量對性能的影響 45
5.2.3 觸媒漿內Nafion含量對電池性能的影響 46
5.3 MEA壓製條件對性能的影響 47
5.3.1熱壓壓力的影響 47
5.3.2熱壓溫度的影響 49
5.3.3熱壓時間的影響 50
5.4商用電極與自製電極比較 50
5.5單電池連續操作的穩定性測試 51
5..7不同保存方式對MEA影響 55
5.7.1陰極暴露大氣保存時對MEA性能的影響 55
5.7.2 有噴溼封蓋保存時對MEA性能影響 57
5.8 MEA剝離對策 57
5.9不同環境溫度下對電池啟動特性 58
第六章 結論與建議 60
參考文獻 64

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