自動化局部活化碳纖維製備一體多功能儲能複合材料

Automation of Local Carbon Fiber Activation for Unibody Multifunctional Energy Storage Composite Materials Fabrication

吳政諺(Cheng-Yan Wu)

指導教授 ： 黃心豪

共同指導教授 ： 陳洵毅(Hsun-Yi Chen)

國立臺灣大學/工學院/工程科學及海洋工程學研究所/碩士(2019年)

https://doi.org/10.6342/NTU201903171

摘要

本研究成功開發出在大氣環境下利用自動化機構燒結出局部活化碳纖維，探討了不同的燒結溫度、燒結時間，C80 (700℃燒結80分鐘)和緊貼著碳纖維的方式有最大的比表面積68.39 m^2/g和單束碳纖維比電容值7.47 F/g，PVdF膠體電解質(gel polymer electrolyte) 組裝成灌注(2 cm x 2 cm)超級電容後，進行充放電測試在2 mA/g下擁有最大之電容值2.6 F/g以及90 %以上的庫倫效率，確定了活化程序後將局部活化碳纖維組裝成5 cm x 5 cm (活性面積3 cm x 3 cm)一體超級電容，在製程上利用氟碳樹脂有效的抵擋了環氧樹脂的侵入，也成功製作出能夠承受附載的「結構一體超級電容」，但因封裝後環氧樹脂可能與PVdF膠體電解質(gel polymer electrolyte)有些微碰處導致原先的官能基反應消失，從交流阻抗圖可以明顯地發現到，在未封裝前是有一個半圓(Rct)存在，代表有化學反應存在，而封裝後半圓消失，使得原先尚未封裝的比電容值從1.4 F/g 降至1.0 F/g，成功製作出規模化串接一體多功能複合材料，在實際應用上可使LED燈發亮持續超過20分鐘，小風扇轉動約1分鐘。

關鍵字

自動化 ； 超級電容 ； 一體成型 ； 多功能複合材料 ； 局部活化碳纖維

並列摘要

In this study, the local activated carbon fiber was successfully sintering by using the automated structure in the atmosphere, and the different sintering temperature and sintering time were discussed. The C80 (700℃ sintering for 80 minutes) and the carbon fiber had the largest specific surface area of 68.39 m^2/g and singular carbon fiber specific capacitance 7.47 F/g, PVdF gel polymer electrolyte assembled into a Perfusion(2 cm x 2 cm) supercapacitor. The charge and discharge test has a maximum capacitance of 2.6 F/g at 2 mA/g and More than 90% of the Coulomb efficiency, after the activation procedure, the locally activated carbon fiber was assembled into a 5 cm x 5 cm (active area 3 cm x 3 cm) Unibody supercapacitor, and the fluorocarbon resin was used to effectively resist the intrusion of epoxy resin in the process. Successfully produced a "structural Unibody supercapacitor" that can withstand the loading, but since the epoxy resin may be slightly contact the PVdF gel polymer electrolyte after encapsulation. The original functional group reaction disappears, and the AC impedance can be clearly It was found that there is a semicircle (Rct) before the package, which means that there is a chemical reaction. The semicircle disappears after encapsulation, which makes the original specific capacitance that has not been packaged first is reduced from 1.4 F/g to 0.9 F/g. Successfully produced a large-scale serial multifunctional composite material. In practical applications, the LED light can be illuminated for more than 20 minutes, and the small fan is rotated for about 1 minute.

並列關鍵字

Automation ； Supercapacitor ； Unibody ； Multifunctional Composite ； Locally Activated Carbon Fiber

參考文獻

[1] "工研院技術院 十年磨一劍研發石墨烯超級電容器. Retrieved from https://www.itri.org.tw/chi/Content/MsgPic01/Contents.aspx?SiteID=1&MmmID=707757071523734774&MSid=744302476247743241 ,(MAY.19,2019)."

[2] "科技新報 蘋果的新專利，全固態電池到底是一種什麼樣的技術 (2015). Retrieved from http://technews.tw/2015/12/23/what-apple-new-patent-all-solid-state-battery-technique-at-all/ (May.19, 2019)."

[3] "一舉兩得，多功能材料碳纖維用於車身，作為結構材料的同時還可以做電極(2018). Retrieved from http://www.cnfrp.com/news/show-67303.html (May,19,2019 )."

[4] T. Pereira, G. Zhanhu, S. Nieh, J. Arias, and H. T. Hahn, "Energy Storage Structural Composites: a Review," Journal of Composite Materials, vol. 43, no. 5, pp. 549-560, 2009.

[5] N. Shirshova et al., "Structural composite supercapacitors," Composites Part A: Applied Science and Manufacturing, vol. 46, pp. 96-107, 2013.