Effect of Ketjen Black as Conducting Materials on the Capacitance of Electric Double Layer Capacitor

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  • TASHIMA Daisuke
    Department of Electrical and Electronic Engineering, Faculty of Engineering, University of Miyazaki
  • KUROSAWATSU Kenji
    Department of Electrical and Electronic Engineering, Faculty of Engineering, University of Miyazaki
  • SUNG Youl-Moon
    Department of Electrical and Electronic Engineering, Faculty of Engineering, University of Miyazaki
  • OTSUBO Masahisa
    Department of Electrical and Electronic Engineering, Faculty of Engineering, University of Miyazaki
  • HONDA Chikahisa
    Department of Electrical and Electronic Engineering, Faculty of Engineering, University of Miyazaki

Bibliographic Information

Other Title
  • 電気二重層キャパシタの静電容量における導電材ケッチェンブラックの影響
  • デンキ ニジュウソウ キャパシタ ノ セイデンヨウリョウ ニ オケル ドウデンザイ ケッチェンブラック ノ エイキョウ
  • Effects of ketjen black as conducting materials on the capacitance of electric double layer capacitor

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Abstract

<p>Electric double layer capacitors were prepared using acetylene black and ketjen black as electrode materials with different types of pore structures. From the results of cyclic voltammetry, it is clear that EDLC based on ketjen black has better capacitive behavior. The specific capacitance of about 55.8 F/g using the polarizable electrodes with ketjen black was obtained. Moreover, space charge distributions of EDLC based on polarizable electrodes were investigated by a pulsed electro acoustic method. The polarizable electrode with ketjen black has higher charge density. It can be found that ketjen black plays an essential role in the improvement of capacitance in EDLC.</p>

Journal

  • Electrochemistry

    Electrochemistry 73 (10), 900-902, 2005-10-05

    The Electrochemical Society of Japan

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