臺灣博碩士論文加值系統

近年來，許多電子產品有朝向輕薄可撓發展的趨勢，促使新形態的儲能元件迎應而生。其中，界於傳統電容器與電化學電池之間的超級電容器具備快速充電、功率密度高、循環壽命長等優點，可視為一種理想的儲能元件。超級電容器又稱電雙層電容器，其儲能關鍵主要在於電極材料之表面特性及其與電解質間之接觸面積。因此，製作多孔狀結構電極將有助於超級電容器儲能效應的提升。本研究藉由分散聚合法製備出微米級聚苯乙烯 (Polystyrene, PS) 微球，輔以自組裝方式排列成非緊密陣列結構，再利用微拓印方式製作出聚二甲基矽氧烷 (Polydimethylsiloxane, PDMS) 之多孔陣列基板。以多壁奈米碳管 (Multi-walled carbon nanotube, MWCNT) 與石墨烯 (Graphene, G) 之均質懸浮液塗覆於多孔陣列各孔洞表層做為電極。隨後於兩多孔電極間注入凝膠電解質於插入隔膜後以三明治結構組立成具多孔電極之超級電容器，分析後發現其具有較高的電容值與循環穩定性。未來對於對穿載式電子產品的發展，將具有相當大之應用潛力。

The soft electronic era did come. Many lightweight flexible electronic devices such as the flexible panel display, flexible solar cell and the wearable electronics have been extensively studied. Thus, a highly efficient energy storage device was required for all of soft electronic devices. Supercapacitors are also known as electrical double-layer capacitors or ultracapacitors. The function of the supercapacitors is between the traditional capacitors and electrochemical cell, which also can be regarded as an ideal energy storage element. The advantages of supercapacitors including faster charge/discharge rate, high energy density, long lifetime, and low maintenance cost were the major advantages of supercapacitors which make them ideal candidates for energy storage. However, the energy storage performance of the supercapacitors is mainly affected by the electrode surface characteristics and the contact area between electrodes and electrolyte. Therefore, preparing of porous electrodes is reasonable to increase the storage effect of the supercapacitor. In this study, polystyrene (PS) microspheres were synthesized by dispersion polymerization technique first. Then, porous Polydimethylsiloxane (PDMS) array structure was fabricated by soft-lithography method. Later, a conducting layer was coated on the surface of porous array after the multi-walled carbon nanotube (MWCNT) and Graphene (G) mixture suspension pouring into the porous array. A H3PO4/PVA gel electrolyte was filled between two porous electrodes; a porous PDMS-based supercapacitor was assembled in a sandwich structure after a separator inserting. The specific capacitances, electrochemical analysis, cycle stability of the porous electrode supercapacitors were explored. This porous electrode-based supercapacitor exhibits a high specific capacitance and good cycle stability, which has enormous potential applied in wearable and portable electronic products in the future.

目錄
中文摘要 …………………………………………………………....................... i
英文摘要 …………………………………………………………....................... ii
誌謝 …………………………………………………………....................... iv
目錄 …………………………………………………………....................... v
表目錄 …………………………………………………………....................... vi
圖目錄 …………………………………………………………....................... vii
符號說明 …………………………………………………………....................... viii
第一章 緒論…………………………………………………........................... 1
1.1 前言………………………………………........................................... 1
1.2 研究動機及目的……………………………………........................... 2
1.3 專利檢索…………………………………........................................... 2
第二章 實驗內容………………………………………………....................... 4
2.1 微米級聚苯乙烯微球陣列之製備……………………....................... 4
2.2 微米孔洞陣列聚二甲基矽氧烷基板之製備………………………... 4
2.3 多孔陣列電極之製備………………………………........................... 5
2.4 凝膠電解質之製備……………………………………....................... 5
2.5 超級電容器之組立……………………………………....................... 6
2.6 多孔陣列電極之電化學測試………………………………………... 6
第三章 結果與討論……………………………………………....................... 8
3.1 導電層之表面形貌…………………………………........................... 8
3.2 多孔陣列電極之表面型態分析……………………........................... 8
3.3 電化學分析………………................................................................... 9
第四章 結論………………………………………………………................... 14
第五章 未來展望…………………………………………………………....... 15
參考文獻 ……………………………………………………………................... 16
英文論文大綱 ……………………………………………………………................... 19
簡 歷 ……………………………………………………………................... 25

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