RT Journal Article
T1 Hydrometallurgical extraction of Li and Co from LiCoO2 particles–Experimental and Modeling
A1 Cerrillo-González, María del Mar
A1 Villén-Guzmán, María Dolores
A1 Acedo-Bueno, Luis Fernando
A1 Rodríguez-Maroto, José Miguel
A1 Paz-García, Juan Manuel
K1 Cobalto - Aleaciones
K1 Litio - Aleaciones
K1 Pilas de litio
K1 Litio - Reciclado
K1 Óxido de litio-cobalto - Reciclado
AB The use of lithium-ion batteries as energy storage in portable electronics and electric vehicles is increasing rapidly, which involves the consequent increase of battery waste. Hence, the development of reusing and recycling techniques is important to minimize the environmental impact of these residues and favor the circular economy goal. This paper presents experimental and modeling results for the hydrometallurgical treatment for recycling LiCoO2 cathodes from lithium-ion batteries. Previous experimental results for hydrometallurgical extraction showed that acidic leaching of LiCoO2 particles produced a non-stoichiometric extraction of lithium and cobalt. Furthermore, the maximum lithium extraction obtained experimentally seemed to be limited, reaching values of approximately 65–70%. In this paper, a physicochemical model is presented aiming to increase the understanding of the leaching process and the aforementioned limitations. The model describes the heterogeneous solid–liquid extraction mechanism and kinetics of LiCoO2 particles under a weakly reducing environment. The model presented here sets the basis for a more general theoretical framework that would describe the process under different acidic and reducing conditions. The model is validated with two sets of experiments at different conditions of acid concentration (0.1 and 2.5 M HCl) and solid to liquid ratio (5 and 50 g L−1). The COMSOL Multiphysics program was used to adjust the parameters in the kinetic model with the experimental results.
PB MDPI
YR 2020
FD 2020-09-13
LK https://hdl.handle.net/10630/20676
UL https://hdl.handle.net/10630/20676
LA eng
NO Cerrillo-Gonzalez, M.d.M.; Villen-Guzman, M.; Acedo-Bueno, L.F.; Rodriguez-Maroto, J.M.; Paz-Garcia, J.M. Hydrometallurgical Extraction of Li and Co from LiCoO2 Particles–Experimental and Modeling. Appl. Sci. 2020, 10, 6375.
NO This work has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 778045. Paz-Garcia acknowledges financial support from the program “Proyectos I+D+i en el marco del Programa Operativo FEDER Andalucía 2014–2020”, No. UMA18-FEDERJA-279. Cerrillo-Gonzalez acknowledges the FPU grant obtained from the Spanish Ministry of Education. The University of Malaga is acknowledged for the financial support in the postdoctoral fellowship of Villen-Guzman.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 21 ene 2026