Fabrication of a stretchable solid-state micro-supercapacitor array

Daeil Kim, Gunchul Shin, Yu Jin Kang, Woong Kim, Jeong Sook Ha

Research output: Contribution to journalArticle

178 Citations (Scopus)

Abstract

We fabricated a stretchable micro-supercapacitor array with planar SWCNT electrodes and an ionic liquid-based triblock copolymer electrolyte. The mechanical stability of the entire supercapacitor array upon stretching was obtained by adopting strategic design concepts. First, the narrow and long serpentine metallic interconnections were encapsulated with polyimide thin film to ensure that they were within the mechanical neutral plane. Second, an array of two-dimensional planar micro-supercapacitor with SWCNT electrodes and an ion-gel-type electrolyte was made to achieve all-solid-state energy storage devices. The formed micro-supercapacitor array showed excellent performances which were stable over stretching up to 30% without any noticeable degradation. This work shows the strong potential of a stretchable micro-supercapacitor array in applications such as wearable computers, power dressing, electronic newspapers, paper-like mobile phones, and other easily collapsible gadgets.

Original languageEnglish
Pages (from-to)7975-7982
Number of pages8
JournalACS nano
Volume7
Issue number9
DOIs
Publication statusPublished - 2013 Sep 24

Keywords

  • SWCNT electrode
  • ion-gel electrolyte
  • micro-supercapacitor
  • stretchable

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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