Aligned MWCNT sheet electrodes prepared by transfer methodology providing high-power capacitor performance

作者：Honda Yuichi^*; Haramoto Tetsuhisa; Takeshige Masayuki; Shiozaki Hideki; Kitamura Takaharu; Ishikawa Masashi

来源：Electrochemical and Solid-State Letters, 2007, 10(4): A106-A110.

DOI：10.1149/1.2437665

We prepare a vertically aligned multiwalled carbon nanotube (MWCNT) sheet by a transfer procedure from a silicon substrate, covered with catalyst grains as a CNT seedbed, to an aluminum sheet as a current collector for the application of the sheet to an electrode for an electric double-layer capacitor. It is noteworthy that the MWCNT sheet electrode provides a discharge capacity of 10-15 F g(-1) (of the aligned MWCNTs) even at an extremely high current density, 200 A g(-1), whereas no discharge capacitance is obtained at all with a typical high-performance activated carbon electrode at such a high current density.

• 出版日期2007