Sita, Lucas Evangelista, et al. “Optimization of LiCoO2 Powder Extraction Process from Cathodes of Lithium-Ion Batteries by Chemical Dissolution”. Semina: Ciências Exatas E Tecnológicas, vol. 36, no. 1, May 2015, pp. 11-18, doi:10.5433/1679-0375.2015v36n1p11.