In the present study, new efficient materials for metal-air batteries will be created by deposition of manganese or other metals oxides over 3D-structured high surface area supports or graphene, employing the chemical, electrochemical and microwave synthesis methods. The kinetics of electrocatalytic reactions taking place in metal-air batteries will be investigated using the electrochemical and physicochemical methods. The surface morphology, structure and composition of the formed materials will be studied in detail using scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and inductively coupled plasma plasma optical emission spectroscopy (ICP-OES).