Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7890804 | Composites Part A: Applied Science and Manufacturing | 2016 | 7 Pages |
Abstract
Novel structural supercapacitors based on CuO nanowires and woven carbon fiber (WCF) has been developed for the first time employing vacuum assisted resin transfer molding (VARTM) process. The growth of CuO nanowires on WCF is an efficient process and can be used in structural capacitors which can trigger the electric vehicle industries toward a new direction. The specific surface area of the carbon fiber was enhanced by NaOH etching (41.36 m2 gâ1) and by growing CuO nanowires (132.85 m2 gâ1) on the surface of the WCF. The specific capacitance of the CuO-WCF based supercapacitor was 2.48 F gâ1, compared with 0.16 F gâ1 for the bare WCF-based supercapacitor. The usage of ionic liquid and lithium salt improved the capacitance to 5.40 and 6.75 F gâ1 with lowest ESR and Rp values of 133 and 1240 Ω along with improving mechanical properties within an acceptable range. The energy and power densities were also increased up to 106.04 mW h kgâ1 and 12.57 W kgâ1. Thus, this study demonstrated that growing CuO nanowires on the surface of WCF is a novel approach to improve multifunctionality that could be exploited in diverse applications such as electric cars, unmanned aerial vehicles (UAVs), and portable electronic devices.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Biplab K. Deka, Ankita Hazarika, Jisoo Kim, Young-Bin Park, Hyung Wook Park,