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Issue 21, 2014
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High-performance all solid-state micro-supercapacitor based on patterned photoresist-derived porous carbon electrodes and an ionogel electrolyte

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Abstract

We report on the fabrication of an all solid-state micro-supercapacitor using patterned photoresist-derived porous carbon electrodes and an ionogel electrolyte. The interdigitated finger electrodes are synthesized via pyrolysis of the SPR-220 photoresist, which results in high surface area porous carbon via a highly scalable technique. The ionogel electrolyte is formed using 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ionic liquid hybridized with fumed silica nanopowder. The fabricated device has an excellent long-term cycling stability. The maximum energy density obtained is about 3 mW h cm−3, higher than that of commercial Li-ion thin film batteries, with the maximum achieved power density of 26 W cm−3. Our results indicate that the novel combination of the pyrolyzed photoresist with an ionogel electrolyte holds promise for applications in integrated energy storage for all solid-state microsystems technologies.

Graphical abstract: High-performance all solid-state micro-supercapacitor based on patterned photoresist-derived porous carbon electrodes and an ionogel electrolyte

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Article information


Submitted
01 Feb 2014
Accepted
10 Feb 2014
First published
11 Feb 2014

J. Mater. Chem. A, 2014,2, 7997-8002
Article type
Paper
Author version available

High-performance all solid-state micro-supercapacitor based on patterned photoresist-derived porous carbon electrodes and an ionogel electrolyte

S. Wang, B. Hsia, C. Carraro and R. Maboudian, J. Mater. Chem. A, 2014, 2, 7997
DOI: 10.1039/C4TA00570H

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