Figure 5: Electrochemical performance of the asymmetric cell.
From: Cotton-textile-enabled flexible self-sustaining power packs via roll-to-roll fabrication
(a) Charge/discharge curves of ACT/Co-Al LDH//ACT/graphene asymmetric cell with PVA/KOH polymer gel electrolyte in the voltage window of 1.6 V at different current densities. (b) Specific capacitances and Coulombic efficiency of the 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. (c) Ragone plots of the 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. (d) Nyquist plots of the 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. (e) Representative charge/discharge curve of ACT/Co-Al LDH//ACT/graphene asymmetric cell with PVA/KOH polymer gel electrolyte in the voltage window of 1.6 V. (f) Cyclic performance of the 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.
