Thin film supercapacitors using a sputtered RuO2 electrode

Jae Hong Lim, Doo Jin Choi, Han Ki Kim, Won I.I. Cho, Young Soo Yoon

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

An all solid-state thin film supercapacitor (TFSC) was fabricated with an amorphous ruthenium oxide (RuO2) thin film electrode and an amorphous LixPOyNz (Lipon) thin film electrolyte. The electrochemical behavior of the RuO2/Lipon/RuO2 /Pt TFSC was characterized by a charge-discharge technique in the potential range of 0-2 V. The RuO2/Lipon/RuO2/Pt TFSC exhibited a behavior of a bulk-type supercapacitor, even though the capacity of an as-fabricated TFSC was found to be much lower than the bulk one and showed a rapid decrease in capacity. This can be explained by excess oxygen ions and interfacial structure modification. The discharge yield dropped by 53% after 500 cycles. The capacitance per volume of the RuO2/Lipon/RuO2 /Pt TFSC at the first cycle is 38 mF/cm2 μm.

Original languageEnglish
Pages (from-to)A275-A278
JournalJournal of the Electrochemical Society
Volume148
Issue number3
DOIs
Publication statusPublished - 2001 Jan 1

Fingerprint

Thin films
Electrodes
Ruthenium
Amorphous films
Supercapacitor
Electrolytes
Oxide films
Capacitance
Ions
Oxygen

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

Cite this

Lim, Jae Hong ; Choi, Doo Jin ; Kim, Han Ki ; Cho, Won I.I. ; Yoon, Young Soo. / Thin film supercapacitors using a sputtered RuO2 electrode. In: Journal of the Electrochemical Society. 2001 ; Vol. 148, No. 3. pp. A275-A278.
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Thin film supercapacitors using a sputtered RuO2 electrode. / Lim, Jae Hong; Choi, Doo Jin; Kim, Han Ki; Cho, Won I.I.; Yoon, Young Soo.

In: Journal of the Electrochemical Society, Vol. 148, No. 3, 01.01.2001, p. A275-A278.

Research output: Contribution to journalArticle

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AU - Lim, Jae Hong

AU - Choi, Doo Jin

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