臺灣博碩士論文加值系統

本研究使用一簡單之機構來達到燃料電池電堆模組化之效果，以利於燃料電池電堆之拆裝與維修，並同時縮減雙極板之厚度以提升體積功率密度與重量功率密度，且使用本模組完全不會增加額外的體積與重量，改善了過往模組化整體系統體積龐大之缺點。
本研究透過對不同電池數之電堆進行介面壓力與電化學交流阻抗量測來檢驗本模組化設計是否會對電池有會有增加阻抗之影響，以及進行電池內部燃料流道之壓力降與電池電壓動態負載來檢驗是否會有流阻之影響，最後對電堆進行不同溫度之性能測試來驗證模組化後之電堆性能。
研究成果顯示本模組化確實能夠縮短拆裝與維修所需之時間，且無過多之接觸阻抗與燃料流阻，擁有模組化之優點並改善增加機構會產生之缺點，證實此為一成功且實用之設計。

In this work, we develop a simple design for modularizing PEM fuel cell stacks to facilitate disassembling and maintenance of a fuel cell stack. In addition, reducing the thickness of the bipolar plate to increase the volumetric and specific power density. This new design avoids the disadvantage of other modularization design that usually increase quite a lot the volume and weight of the fuel cell stack.
The interface pressure and electrochemical impedance are measured for stacks consist of different number of cells to study the influence of this new modularization design on fuel cell performance. Effects gas flow resistance and interfacial electrical resistance are investigated.
The results show that this new modularization design does actually decrease the disassembling and maintenance time, while retain almost the same value of contact impedance and fuel flow resistance as un-modularized stack. It proves that the modularization design in this work is successful and practical.

中文摘要 I
致謝 III
目錄 IV
表目錄 VIII
圖目錄 IX
第一章 緒論 - 1 -
1-1 前言 - 1 -
1-2 質子交換膜燃料電池 - 3 -
1-2-1 燃料電池種類 - 3 -
1-2-2 質子交換膜燃料電池之工作原理 - 5 -
1-2-3 質子交換膜燃料電池之各部構造 - 6 -
1-2-4 質子交換膜燃料電池之極化現象 - 10 -
第二章 文獻回顧 - 13 -
2-1燃料電池電堆相關文獻回顧 - 13 -
2-2交流阻抗分析 - 16 -
2-3燃料電池模組化 - 19 -
2-4金屬多孔材與金屬極板之應用 - 20 -
2-5研究動機與目的 - 21 -
第三章 實驗方法 - 22 -
3-1 實驗架構與流程 - 22 -
3-2 拉伸強度量測 - 23 -
3-3 界面壓力量測 - 25 -
3-4 壓降量測 - 27 -
3-5 燃料電池性能測試條件 - 28 -
3-6 電化學交流阻抗頻譜測試 - 30 -
第四章 實驗材料與設備 - 32 -
4-1 燃料電池各部元件 - 32 -
4-1-1 膜電極組 - 32 -
4-1-2 矽膠氣密墊片 - 35 -
4-1-3金屬多孔材 - 35 -
4-1-4 金屬雙極板與流道 - 36 -
4-1-5 模組化機構 - 37 -
4-1-6 端板 - 38 -
4-2 水冷卻系統 - 40 -
4-3 燃料電池性能測試系統 - 41 -
4-4 電化學交流阻抗測試系統 - 44 -
第五章 實驗結果與討論 - 46 -
5-1 拉伸強度測試結果 - 46 -
5-2 模型分析結果 - 50 -
5-3 電池界面壓力測試結果 - 53 -
5-4 壓降量測結果 - 56 -
5-5 電池性能測試結果 - 58 -
5-5-1 改變同加濕溫度對電池性能之影響 - 59 -
5-5-2 改變加濕溫度對電池性能之影響 - 66 -
5-6電化學交流阻抗頻譜測試結果 - 70 -
5-7 電壓均勻性測試結果 - 74 -
5-8 與過往研究比較 - 76 -
第六章 結論與未來方向 - 77 -
6-1 結論 - 77 -
6-2 未來方向 - 78 -
參考文獻 - 79 -

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