Flexible and Highly Scalable V2O5‐rGO Electrodes in an Organic Electrolyte for Supercapacitor Devices |
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Authors: | Ce Yao Foo Afriyanti Sumboja Daniel Jia Hong Tan Jiangxin Wang Pooi See Lee |
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Affiliation: | School of Materials Science and Engineering, Nanyang Technological University, Singapore |
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Abstract: | 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. |
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Keywords: | flexible materials reduced graphene oxide supercapacitors organic electrolytes |
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