Fabrication of a Lower Weight, All 3D Printed Graphene Supercapacitor

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Graphene is under intensive study for energy storage devices, such as batteries and supercapacitors, due to its energy density and ability to recharge. These properties make graphene well suited for electric powered UAVs with the advantage of reducing weight and volume of the device [1-5]. However, conventional manufacturing, which depends on the lithography process, has limitations in terms of efficiency, operational costs and scalability. We are optimizing a novel approach for mass production of graphene, using an easily applied graphene oxide film and laser-scribed graphene (LSG), which acts as both electrical insulator and a good ionic conductor [6]. The use of a liquid electrolyte limits the recharging speed and operating temperature. Switching to a solid electrolyte graphene supercapacitor yields enhanced environmental safety and higher energy density, thus a smaller volume needed for UAV aircraft [7-8]. The current research focuses on the ease of production of such supercapacitor through the development of a superior solid electrolyte, and the robustness of 3D printing and robotic assembly.

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Journal: TechConnect Briefs
Volume: TechConnect Briefs 2019
Published: June 17, 2019
Pages: 167 - 170
Industry sector: Energy & Sustainability
Topics: Catalysis, Energy Storage
ISBN: 978-0-9988782-8-7