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Affiliation of Author(s):化学工程学院
Teaching and Research Group:高分子化工
Journal:Journal of Materials Chemistry A
Funded by:其他课题
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 cm3, higher than that of commercial Li-ion thin film batteries, with the maximum achieved power density of 26 W cm3. 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.
First Author:wangshuang
Indexed by:Journal paper
Volume:2
Page Number:1
Translation or Not:no
Date of Publication:2014-02-10
