Figure 4: Electrochemical performance of symmetric and asymmetric cells.
From: Cotton-textile-enabled flexible self-sustaining power packs via roll-to-roll fabrication
(a) CV curves of ACT/graphene//ACT/graphene and ACT/Co-Al LDH//ACT/Co-Al LDH symmetric cells as well as ACT/Co-Al LDH//ACT/graphene asymmetric cell with PVA/KOH polymer gel electrolyte in the voltage window of 1.0 V at a scan rate of 25 mV s−1. (b) Charge/discharge curves of ACT/graphene//ACT/graphene and ACT/Co-Al LDH//ACT/Co-Al LDH symmetric cells as well as ACT/Co-Al LDH//ACT/graphene asymmetric cell with PVA/KOH polymer gel electrolyte in the voltage window of 1.6 V at a current density of 12.5 mA cm−2 (x axis has been transformed to time/mass, based on the mass of the electrode). (c) CV curves of ACT/Co-Al LDH//ACT/graphene asymmetric cell with PVA/KOH polymer gel electrolyte under the voltage windows of 1, 1.2, 1.4 and 1.6 V at the scan rate of 25 mV s−1, respectively. (d) CV curves of ACT/Co-Al LDH//ACT/graphene asymmetric cell with PVA/KOH polymer gel electrolyte in the voltage windows of 1.6 V at different scan rates.
