A High‐Energy‐Density Asymmetric Microsupercapacitor for Integrated Energy Systems

An asymmetric micrometer-sized pseudosupercapacitor is fabricated by growing V2O5 honeycomb nanostructures onto micro-carbon fibers, which serve as the positive electrode. WO3/PPy core/shell nanoarrays on micro-carbon fibers serve as the negative electrode. The all-solid-state pseudosupercapacitor shows a volumetric specific capacitance as high as ≈56 F cm−3 and a volumetric energy density of ≈31.1 mWh cm−3 while maintaining a high power density. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.