Flexible supercapacitor based on polyaniline nanowires/carbon cloth with both high gravimetric and area-normalized capacitance

Ying Ying Horng, Yi Chen Lu, Yu Kuei Hsu, Chia Chun Chen, Li Chyong Chen, Kuei Hsien Chen

Research output: Contribution to journalArticle

246 Citations (Scopus)

Abstract

Flexible supercapacitor is successfully fabricated using polyaniline nanowires/carbon cloth (PANI-NWs/CC) nanocomposite. High gravimetric capacitance of 1079 F g-1 at a specific energy of 100.9 Wh kg-1 and a specific power of 12.1 kW kg-1 is obtained. Moreover, this approach also offers an exceptionally high area-normalized capacitance of 1.8 F cm-2. The diffusion length of protons within the PANI-NWs is estimated to be about 60 nm by electrochemical impedance analysis, which indicates that the electrochemical performance of the electrode is not limited by the thickness of PANI-NWs. The electrochemical performance of PANI-NWS/CC remains without any deterioration, even when the cell is bent under high curvature. These results clearly present a cost-effective and simple method of fabrication of the nanostructured polymers with enormous potential in flexible energy storage device applications.

Original languageEnglish
Pages (from-to)4418-4422
Number of pages5
JournalJournal of Power Sources
Volume195
Issue number13
DOIs
Publication statusPublished - 2010 Jul 1

Keywords

  • Area-normalized capacitance
  • Polyaniline nanowires
  • Supercapacitor

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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