Cathode materials considerably limit the properties of Li-ion batteries due to the loss of capacity associated to irreversible phase transformation suffering some materials undergo at high potentials. Cation doping of the cathode materials is one of the best strategies to improve the structural and electrochemical properties; however, the solubility of...
A hydrometallurgical process to selectively recover copper and gold contained in Electronic Waste Printed Circuit Boards (EWPCB) from cellphones is presented. To achieve a selective process, masking agents were employed to avoid impurities co-dissolution, which could accumulate in the leaching solutions and contribute to reagent degradation. Sodium citrate, ammonium phosphate...