Fig. 4
From: Binder-Free Electrodes and Their Application for Li-Ion Batteries
a Schematic illustration of the preparation of 3D graphene/MnO2 hybrid, and illustrations of electrons transfer on 3D graphene/MnO2 hybrid [59]. b CBD method for the fabrication of CNF@Ni(OH)2 [60]. b1–3 Different hybrid membranes with increase of concentrations of Ni(NO3)2 solution. c Schematic of the synthesis procedure for the PVP@S-SACNT composite [61]