“…Currently, supercapacitors, whose working mechanism is based on electrostatic charge accumulation at interfaces between electrodes and electrolyte ions, are considered as energy storage devices with a great potential due to their high-power, long cycle life, low maintenance cost, and safe pollution-free operation (Chen, Xu, Wei, & Yang, 2016;Hibino, Kobayashi, Nagao, & Kawasaki, 2015;Zhou, Ye, Wan, & Jia, 2015). These advantages promote the use of supercapacitors in a large variety of applications, as for example motor vehicles (Kühne, 2010;Miller, & Simon, 2008;Rezzak, & Boudjerda, 2017), laptops (Gao et al, 2011) autonomous medical sensors (Guo et al, 2017), wearable electronics (Bao, & Li, 2012;Jost et al, 2013), and energy harvesters (Pavković, Hoić, Deur, & Petrić, 2014;Yuan et al, 2012).…”