臺灣博碩士論文加值系統

本研究採用黃光微影SU-8製程及濕蝕刻技術，製作多洞型紅銅雙極板(孔徑為750 μm、厚度為50 μm)；而產氫部分，以重量百分比方式調配不同的低濃度(1-10 wt. %)之氫氧化鈉溶液(NaOH solution)與鋁箔紙(Al paper)作為化學產氫。此外，改變雙極板之開孔率來改善燃料電池功率密度，並將針對量測燃料電池系統之性能探討，實驗結果以VI曲線與PI曲線表示。實驗結果可得，藉由化學產氫反應所伴隨自發性加熱、加濕過程、氫氣內部循環及累積壓力機制，將可增強整體燃料電池系統之效能。最後燃料電池系統結合直流升壓轉換器，將燃料電池之輸出電壓升壓至4.99 V作為手機蓄電池充電使用。

In the study, micro-PEM fuel cells are designed and fabricated in-house through a deep UV lithography SU-8 process and a wet etching technique for perforated holes plates (diameter is 750 μm) of 50 μm thickness of pure copper. Measurements of cell performance are performed using the low percentage of the weight concentration (1-10 wt. %) of NaOH solution, Al paper as the source material for hydrogen production, and different open ratios of the perforated plates to determine which best improves cell power density. Experimental results are presented in the form of polarization VI and PI curves under the above operating conditions. The experimental results show cell performance is enhanced by the self-heating, humidifying of hydrogen production, hydrogen internal circulation and accumulated pressure. Finally, the micro-PEM fuel cell system with DC/DC boost converter can generate 4.99 V for use in cellular phone accumulators charging.

目 錄 i
表 目 錄 iii
圖 目 錄 iv
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 3
1-3 文獻回顧 5
1-4 研究目的 16
第二章 微型質子交換膜燃料電池元件設計與製作 20
2-1 質子交換膜燃料電池組成元件 20
2-2 燃料電池組設計要點 25
2-3 產氫結合微型質子交換膜燃料電池系統設計製作 27
第三章 實驗相關設備與元件材料 43
3-1 實驗設備 43
3-2 實驗元件材料 48
第四章 燃料電池之性能 54
4-1 前言 54
4-2 電極熱力學 54
4-3 極化現象 60
第五章 誤差分析 63
第六章 實驗結果與討論 67
6-1 氫氧化鈉濃度對於化學當量及總產氫量之影響 69
6-2 氫氧化鈉濃度對化學產氫溫度之影響 78
6-3 定孔徑下改變開孔率(開孔數)對燃料電池之性能影響 80
6-4 陰極多洞型35％對於陽極單一開孔25-55％之影響 82
6-5 陽極多洞型35％對於陰極單一開孔25-55％之影響 83
6-6 固定微型燃料電池之電流密度下，升壓轉換器效能影響 85
第七章 結論與未來展望 107
7-1 結論 107
7-2 建議 109
參考文獻 111
附錄 A 120

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