具導電高分子砂紙基電極之超級電容器及其製法

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

107140405

專利證號

I 673735

專利獲證名稱

具導電高分子砂紙基電極之超級電容器及其製法

專利所屬機關 (申請機關)

國立虎尾科技大學

獲證日期

2019/10/01

技術說明

本專利利用具有偽電容效應的導電高分子加入多壁奈米碳管與石墨烯中製作砂紙基複合式電極之用。經循環伏安分析發現添加3%的導電高分子PEDOT之砂紙基電極能有效將其比電容量由55F/g提升到124F/g。此外，在磷酸凝膠電解質中添加1.0%的多壁奈米碳管能有效降低電解質的內電阻值，並將電極的電容量增加到137F/g，且在恆電流下進行循環壽命分析測試，發現其比電容量仍保有初始電容量的97%，顯示此儲能元件具有優異的循環壽命。此種複合式超級電容器，未來在可撓式穿載裝置與儲能元件的應用上都具有相當大的發展潛力。A sandpaper-based composite electrode was prepared by mixture the multi-walled carbon nanotubes (MWCNTs) and graphene (G) with a conductive polymer (Poly-3,4-Ethylenedioxythiophene) (PEDOT) with a pseudo-capacitance characteristics. The specific capacitance of the composite electrode could be effectively increased from 55 to 124F/g after 3% PEDOT adding. In addition, the internal resistance of the electrolyte could be effectively reduced, and the electrode capacitance could be increase to 137 F/g simultaneously, as 1.0% MWCNTs was adding to the phosphate gel electrolyte. The specific capacitance of the energy storage device still retains 97% of its initial capacitance after the charge-discharge cycles testing under constant current, which indicated the device possesses an excellent cycling-life performance. The hybrid supercapacitor we provided in this study also has considerable development potential in the flexible wearable device and energy storage component in the future.

備註

本部(收文號1110033626)同意該校111年6月9日虎科大智財字第1113400059號號函申請終止維護專利(國立虎尾科技大學)

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