An electrochemical capacitor based on a Ni(OH)2/activated carbon composite electrode

Jong Hyeok Park, O. Ok Park, Kyung Hee Shin, Chang Soo Jin, Jong Huy Kim

Research output: Contribution to journalArticlepeer-review

204 Citations (Scopus)


In order to enhance energy density, a hybrid type pseudocapacitor/electric double layer capacitor (EDLC) was considered and its electrochemical properties were investigated. At various current densities, stable charge/discharge behaviors were observed with much higher specific capacitance values of 530 F/g compared with that of EDLC (230 F/g), by introducing Ni(OH)2 as a cathode material. By using the modified cathode of a Ni(OH)2/activated carbon composite electrode, the specific capacitance was less sensitive to charge/discharge current density exhibiting stable power characteristics.

Original languageEnglish
Pages (from-to)H7-H10
JournalElectrochemical and Solid-State Letters
Issue number2
Publication statusPublished - 2002 Feb

All Science Journal Classification (ASJC) codes

  • General Chemical Engineering
  • General Materials Science
  • Physical and Theoretical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering


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