A method for synthesis of cathode materials from black mass

A method for synthesizing nickel-manganese-cobalt (NMC) electrode materials from black mass, comprising:

• leaching the black mass with a leaching agent to extract critical metals, including lithium, cobalt, nickel and manganese, and generate a pregnant leaching agent;
• adding a precipitant to the pregnant leaching agent to precipitate salts of the NMC electrode materials from a lithium-enriched leaching agent;
• adjusting metal ratios of nickel, manganese and cobalt in the precipitated salts of the NMC electrode materials to a target metal ratio for cathode synthesis to generate a precursor formulation;
• and
• synthesizing a target cathode material from the precursor formulation.

A method for synthesizing electrode materials from black mass, comprising:

• leaching the black mass with a hydrophobic deep eutectic solvent to extract critical metals for electrode construction and generate a pregnant hydrophobic deep eutectic solvent;
• adding a precipitant to the pregnant hydrophobic deep eutectic solvent to precipitate salts of the electrode materials from a lithium-enriched hydrophobic deep eutectic solvent;
• adjusting metal ratios in the precipitated salts of the electrode materials to a target metal ratio for cathode synthesis to generate a precursor formulation;
• and
• synthesizing a target cathode material from the precursor formulation.