Journal
ACS NANO
Volume 7, Issue 9, Pages 7975-7982Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn403068d
Keywords
micro-supercapacitor; SWCNT electrode; stretchable; ion-gel electrolyte
Categories
Funding
- National Research Foundation of Korea (NRF)
- Korea government (MEST) [NRF-2013R1A2A1A01016165, 20120008283]
- IT R&D program of MKE/KEIT [10041416]
- Korea Communications Agency (KCA) [10041416] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2013R1A2A1A01016165] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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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.
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