The influence of the conditions of synthesis, such as both monomer and electrolyte concentrations, the electric potential of synthesis and temperature of work or the chosen solvent, on the properties of the polymeric material to be used as cathode of lithium-ion batteries, was studied. A similar study was performed to obtain three conducting polymers, as polypyrrole, polythiophene or poly-3-methylthiophene. Specific charges of the obtained materials, as a function of the conditions of synthesis were analysed.