Fig. 6
From: Supercapacitors with alternating current line-filtering performance
Reproduced with permission from Ref [48]. Copyright 2015. WILEY–VCH
a Schematic of the manufacturing process for rGO-CNT MSCs; b SEM of the deposited rGO-CNT composite; c phase angle versus the frequency for MSCs based on different rGO/CNT ratios; d Ragone plots showing the relationship of specific energy and power of MSCs; Reproduced with permission from Ref [50]. Copyright 2012. WILEY–VCH. e A simple fabrication process of integrated energy device circuits (IEDCs); f the dependence of the phase angle with frequency; and g Ragone plots of IEDCs compared with other energy storage devices.