The aim of this thesis was to develop a composite anode based on reduced graphene oxide (rGO) and metallic zinc (Zn), and to characterize it as a component of zinc-ion batteries, which are emerging as an alternative to lithium-ion systems. As part of the research, the properties of reduced graphene oxide were analyzed as a function of electrode material, with a particular emphasis on its exceptional electrical conductivity and large specific surface area with numerous active sites, which facilitate the deposition of greater amounts of zinc. Furthermore, composites of reduced graphene oxide with carbon nanotubes (CNT) and titanium (IV) oxide (TiO2) were prepared to further improve the primary properties of rGO and enhance the performance of the assembled zinc-ion batteries. The analysis was conducted using electrochemical measurement techniques, including cyclic voltammetry and chronoamperometry in 0,1 M KCl and 2 M ZnSO4 solutions, while the prepared symmetric zinc cells were tested using the chronopotentiometry method. The surface of the electrode materials during the zinc deposition process was characterized using an optical microscope. Successfully prepared rGO-CNT and rGO-CNT-TiO2 layers showed successful zinc deposition. The incorporation of TiO2 into the system improves the zinc deposition process, making it more efficient and faster. The application of (rGO-CNT)-Zn and (rGO-CNT-TiO2)-Zn electrodes in symmetric zinc-ion batteries contributes to their stable operation with lower overpotentials under different current load conditions, without dendrite formation.