Flexible and highly scalable V2O5-rGO electrodes in an organic electrolyte for supercapacitor devices
Foo, Ce Yao
Tan, Daniel Jia Hong
Lee, Pooi See
Date of Issue2014
School of Materials Science and Engineering
Vanadium pentoxide–reduced graphene oxide (rGO) free-standing electrodes are used as electrodes for supercapacitor applications, eliminating the need for current collectors or additives and reducing resistance (sheet resistance 29.1 Ω □−1). The effective exfoliation of rGO allows improved electrolyte ions interaction, achieving high areal capacitance (511.7 mF cm−2) coupled with high mass loadings. A fabricated asymmetric flexible device based on rGO/V2O5-rGO (VGO) consists of approximately 20 mg of active mass and still delivers a low equivalent series resistance (ESR) of 3.36 Ω with excellent cycling stability. A prototype unit of the assembled device with organic electrolyte is shown to light up eight commercial light-emitting diode bulbs.
DRNTU::Engineering::Materials::Microelectronics and semiconductor materials
Advanced energy materials
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