本實驗是以黃光微影製程技術與氣相沉積薄膜製程技術，製作適用於微型質子交換膜燃料電池之導電性與絕緣性的微流道板，並且設計四種不同的流道幾何結構，包括指叉狀、蛇型狀、平行狀以及網狀四種不同的微結構。在實驗操作中主要以陽極與陰極的進氣流量、操作溫度與操作時間作為實驗之控制參數，探討這三項參數對燃料電池四種流道結構的極化曲線與功率密度的影響。將實驗結果以VI曲線與PI曲線表示。同時拆開燃料電池組觀測流道表面上水氣的累積情形與實驗過程中的陰極反應氣體入口端與出口端的壓力降，探討燃料電池在操作過程當中，內部的物理現象。在實驗結果當中，發現燃料電池的流道板幾何結構，將會影響燃料電池反應面積的發電性能，在提高操作溫度與進氣流量時，均能有效幫助發電性能的提升。藉由比較電流密度分佈的情形與流道上水氣累積的生成分佈，可以得知燃料電池發電性能好壞與內部水氣產生的交互關係。

In the study, the micro fuel cells were designed and fabricated in-house through a deep UV lithography technique, and a metal-organic chemical vapor deposition technique was used as microstructure material for fuel cell flow field plates. The conductive and insulating flow field plates include interdigitated, serpentine, parallel, and mesh. The experiments with several operation condition include of different cell operating temperatures, different reactant flow rates, and different operating times. This study of various operating parameters shows the physical phenomenon in the current density distribution in fuel cell reaction area and water accumulation in flow channel, and results are represented by VI curve and PI curve. The relationship of physics phenomenon between fuel cell’s power production and water production rates from the current density distribution and water accumulation, can be found through visualization.

目錄…………………………………………………………..i
表目錄………………………………………………………iv
圖目錄…………………………………………………………….v
符號說明…………………………………………………..viii
中文摘要…………………………………………………………….x
英文摘要…………………………………………………………...xi

第一章 序論……………………………………………………………1
1-1 前言……………………………………………………………1
1-2 燃料電池發展之歷史與簡介………………………….2
1-3 燃料電池的種類與發電原理………………………….3
1-4 實驗目的……………………………………………….7
1-5 文獻回顧……………………………………………….8

第二章 微型質子交換膜燃料電池組元件設計與製作16
2-1 質子交換膜燃料電池組成元件……………………..16
2-2燃料電池組設計要點………………………………...21
2-3微型質子交換膜燃料電池組元件設計與製作……...24
2-4燃料電池的組裝……………………………………...31

第三章 燃料電池性能分析………………………...39
3-1 極化曲線原理……………………………………….39
3-2 參考電極…………………………………………….40
3-3 極化現象…………………………………………….42

第四章 實驗設備與材料…………………………..49
4-1 實驗設備……………………………………………49
4-2 實驗材料……………………………………………54

第五章 誤差分析………………………………….66

第六章 實驗結果與分析………………………….70
6-1 操作時間對燃料電池電流密度的影響……………71
6-2 操作時間與燃料電池極化曲線和水氣分佈的關係75
6-3 操作時間與流道水氣形成的關係…………………77
6-4 操作流量的改變對燃料電池性能與內部水氣量的影響78

第七章 結論與未來展望………………………….96
7-1 結論………………………………………………...96
7-2 建議與未來展望…………………………………...98

參考文獻………………………………………………100

附錄A………………………………………………….107

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