Fig. 3: Electrochemical performance of different electrodes in Zn/3D-LFGC, Zn/3D-RFGC, and Zn/Cu half cells.

Voltage profiles of different half cells at a 1 mA cm⁻², b 2 mA cm⁻², c 5 mA cm⁻², and d 10 mA cm⁻² with a capacity of 0.5 mAh cm⁻²; e, f 120 mA cm⁻² with capacity of 5 mAh cm⁻²; g 40 mA cm⁻² with capacity of 8 mAh cm⁻²; h 40 mA cm⁻² with capacity of 40 mAh cm⁻². i Zn plating/stripping CE in different electrodes at varied current densities, j the corresponding comparison of CE; k the overpotential of Zn deposition on 3D-LFGC and 3D-RFGC at different current density; l the comparison of current densities of deposition, and cycle capability with previously reported literature.