Flexible solid-state paper based carbon nanotube supercapacitor

Shan Hu, Rajesh Rajamani, Xun Yu

Research output: Contribution to journalArticlepeer-review

202 Scopus citations


This paper presents a flexible solid-state supercapacitor of high energy density. The electrodes of the supercapacitor are made of porous and absorbent cotton paper coated with single-wall carbon nanotubes. To ensure all solid-state configuration, a solid-state polymer-based electrolyte (poly (vinyl alcohol)/phosphoric acid) is used. The as-fabricated supercapacitor can be charged to over 3 V. It has high specific capacitance and high energy density of 115.8301 F/g carbon and 48.8587 Wh/kg carbon. Its performance is comparable to that of commercial supercapacitors, which need to utilize liquid electrolytes. Flexible solid-state supercapacitors offer several significant advantages for use in hybrid electric vehicles.

Original languageEnglish (US)
Article number104103
JournalApplied Physics Letters
Issue number10
StatePublished - Mar 5 2012

Bibliographical note

Funding Information:
This research was supported in part by funding from the National Science Foundation (Grant CMMI 0927216).


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