Electrochemical modification of active carbon fiber electrode and its application to double-layer capacitor

Toshiyuki Momma, Xingjiang Liu, Tetsuya Osaka, Yousuke Ushio, Yoshimitsu Sawada

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150 Citations (Scopus)

Abstract

Electrochemical oxidation of an active carbon fiber (ACF) electrode showed an enhancement effect of the electrode capacitance. The modification of ACF, however, increased the electrode inner resistance with an increase in the capacitance. Au deposition, the deaeration and the electrochemical reduction (discharge) after the modification showed a decrease in the inner resistance. Thus, the capacitor using the modified ACF electrodes with deaeration, Au deposition and/or discharge treatment showed an enhancement of capacitance with decreasing inner resistance.

Original languageEnglish
Pages (from-to)249-253
Number of pages5
JournalJournal of Power Sources
Volume60
Issue number2
DOIs
Publication statusPublished - 1996 Jun

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Keywords

  • Active carbon
  • Capacity enhancement
  • Double-layer capacitors
  • Oxidation

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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