臺灣博碩士論文加值系統

本文以製備一種新穎的複合式材料，並將碳材用於電雙層電容器，此電極材料是以高表面積的活化中間碳球界相瀝青(activated mesocarbone microbeads)及奈米碳管( Carbon nanotubes,CNTS )組成。藉由活化後，使界相瀝青在內部及外部生成大量孔隙，外露石墨邊緣，適合作為高效能電極材料。

經由電容器測試此aMCMB電極材料具有相當高的儲能表現。此電極在0.02A g-1放電電流下，具有電容量350 F g-1，而電流量提高至0.6 A g-1時，則電容量下降至155 F g-1。為了提升電容器的功率輸出及高速充放電的操作能力，我們利用球磨機研磨的方式，降低電極組成顆粒內部離子傳遞路徑與提高碳顆粒接觸機會，此電極在0.02A g-1放電電流下，具有電容量372 F g-1，而電流量提高至0.6 A g-1時，則電容量下降至153 F g-1；而為了提高碳電極的電子傳遞與提高碳電極顆粒間孔隙，研磨過程加入CNTs，此電極0.02A g-1放電電流下，具有電容量292 F g-1，而電流量提高至0.6 A g-1時，則電容量保持至177 F g-1的電容量。

In this study, the high surface area of activated meso-carbonemicro-beads and the carbon nanotube for use as modern composite supercapacitor electrodes. The activated mesocarbonemicrobeads will be porous in internal and external part for high performance electrode materials.
The aMCMB electrode has a high energy storage capacity. This capacitance of electrode is 350 F g-1 under current is 0.02A g-1. The capacitance of electrode will decrease to 155 F g-1 under current is 0.6A g-1. The study was decreased transfer path of internal ion and raise particle touch for power output of supercapacitor and high rate charge-discharge ability. This capacitance of electrode is 372 F g-1 under current is 0.02A g-1. The capacitance of electrode will decrease to 153 F g-1 under current is 0.6A g-1. The CNTs was added to milling process for raising electron transport and inter-granular pore. This capacitance of electrode is 292 F g-1 under current is 0.02A g-1. The capacitance of electrode will decrease to 177 F g-1 under current is 0.6A g-1.

目 錄

摘　要 i
ABSTRACT ii
誌 謝 iii
目 錄 iv
表目錄 vi
圖目錄 vii
第一章 緒論 1
1.1前言 1
1.2超級電容研究概況 1
1.3超級電容產業化狀況 2
第二章 背景資料與文獻回顧 3
2.1超級電容之簡介 3
2.1.1超級電容儲能原理 4
2.1.2電容值的計算方式 7
2.2超級電容碳材材料研究 12
2.2.1 活性碳 12
2.2.2 奈米碳管(Carbon Nanotube) 13
2.2.3 奈米碳管力學性質 16
2.2.4 奈米碳管電學性質 17
2.3電解質 17
2.4隔離膜 18
第三章 實驗方法與步驟 19
3.1實驗藥品與材料 19
3.2實驗設備 21
3.3實驗流程 23
3.3.1超級電容製備流程 23
3.4碳電極配方調整 26
3.5超電容材料與元件分析 27
3.5.1拉曼光譜（Raman Spectrum） 27
3.5.2掃描式電子顯微鏡（SEM） 28
3.5.3氣體吸附(氮氣吸附法)比表面積(BET) 30
3.5.4 循環伏安法(CV) 32
3.5.5四點探針 33
3.5.6 交流阻抗(EIS) 33
第四章 結果與討論 35
4.1 活化中間碳球界相瀝青特性分析 35
4.1.1活化中間碳球界相瀝青 35
4.1.2研磨處理後活化中間碳球界相瀝青 36
4.1.3拉曼光譜分析 37
4.1.4氣體吸附(氮氣吸附法)比表面積分析 38
4.1.5研磨中導入奈米碳管(CNTs) 39
4.2電雙層電容元件電性分析 40
4.2.1循環伏安法元件測試 41
4.2.2四點探針電性測試 44
4.2.3電化學交流阻抗分析 45
4.2.4定電流充放電 47
4.2.5超電容元件模組化驅動LED燈 49
第五章 結論 51
參考文獻 53
附錄 57

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