In the present work, the electrochemical recovery of cobalt was carried out from waste lithium-ion batteries. The dismantling of the batteries, the classification, and the reduction in size of the active material of the cathode were carried out for its subsequent leaching in a deep eutectic solvent (DES), formed by choline chloride: urea. After 24 hours of leaching at 90 ° C and constant stirring, the leaching liquors were obtained, which were used as electrolytic medium. Through cyclic voltammetry, the potential window at which cobalt reduction is carried out was determined, subsequently, by chronoamperometry, the potentiostatic current density transients were obtained during the electroreduction of cobalt on glassy carbon. The kinetic and thermodynamic parameters of the nucleation and growth process of metal clusters on glassy carbon were determined by means of models involving 3D nucleation and diffusion-controlled growth. Finally, the characterization of the formed deposits was carried out using SEM, EDX and XPS.