カーボンオニオンの電気二重層キャパシタ電極材料としての評価

カテゴリ: 論文誌(論文単位)

グループ名: 【E】センサ・マイクロマシン部門

発行日: 2013/08/01

タイトル(英語): Evaluation of Carbon Onions as Electrode Material for Electric Double Layer Capacitor

著者名: 青野　祐子（東京工業大学大学院 理工学研究科 機械物理工学専攻），渡部　純（東京工業大学大学院 理工学研究科 機械物理工学専攻），平田　敦（東京工業大学大学院 理工学研究科 機械物理工学専攻）

著者名(英語): Yuko Aono (Tokyo Institute of Technology), Jun Watanabe (Tokyo Institute of Technology), Atsushi Hirata (Tokyo Institute of Technology)

キーワード: 電気二重層キャパシタ（EDLC），カーボンオニオン，ナノカーボン材料　　electric double layer capacitor (EDLC)，carbon onion，nano-carbon materials

要約(英語): Electric double layer capacitor (EDLC) is attractive electrical energy storage for micro-machines because it has long-lifetime and high-responsiveness. One of the requirements is how to increase energy density, especially on micro-chip in which it is difficult to use high-volume electrodes of capacitor. We propose an approach to use carbon onion as materials of polarized electrodes. Carbon onion is an allotrope of nano-carbon materials and it is easily produced from carbon-black or nano-diamond particle. In this paper six carbon onions prepared under different conditions and a conventional activated carbon powder are prepared and their electrical properties are compared by cyclic voltammetry. Specific capacitance of carbon onion reaches 25.7 F/g and it is much higher than that of activated carbon 6.8 F/g, while activated carbon has three times higher specific surface than carbon onion. The results indicate that carbon onion is effective to improve an energy density and one of strong candidates of electrode materials for micro-machines fabricated on a chip.

本誌: 電気学会論文誌E（センサ・マイクロマシン部門誌） Vol.133 No.8 （2013） 特集：センサ・マイクロマシン用材料とその創成・評価技術

本誌掲載ページ: 337-341 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejsmas/133/8/133_337/_article/-char/ja/