Keywords: Lithium-ion batteries, Recycling, Leaching, Valorisation, Cobalt Abstract: LiCoO2 belongs to the first generation of cathode materials and is a component with the greatest potential for recycling. In order to recover cobalt from spent lithium-ion batteries, the cathode material was dissolved in sulfuric acid in an atmosphere of nitrogen and oxygen. As a result, a leach solution with a low pH value was obtained. In this paper, the influence of the initial pH value of leach solutions on the efficiency of electrolytic precipitation of cobalt was investigated. Recorded cyclic voltammogram indicated that the obtained leach solutions were not suitable for electrolytic precipitation of cobalt. However, 93% of cobalt was recovered by increasing the electrical conductivity and pH value of leach solutions. https://unilib.phaidrabg.rs/o:499 cobiss:64702473 Medić, Dragana Milić, Snežana Alagić, Slađana Dimitrijević, Silvana Đorđievski, Stefan Nujkić, Maja Papludis, Aleksandra Gorgievski, Milan 2021 Keywords: Kinetic Study, Copper Ions, Barley Straw, Biosorption, Chemisorption info:eu-repo/semantics/conferenceProceedings XIV International Mineal Processing and Recycling Conference Belgrade, Serbia, 12-14 May 2021 startpage: 160 endpage: 165 eng application/pdf 509855 bytes All rights reserved Influence of pH value of leach solutions on efficiency of electrolytic deposition of cobalt