Patent ID: 7820317

Claim:
Method for hydrometallurgical treatment of cells and batteries comprising at least: a lithium-based anode, a salt dissolved in an electrolyte, and a cathode comprising at least a metal or a combination of metals selected from the group consisting of cobalt, nickel, manganese and iron, for recovering recoverable fractions, the method comprising: dry crushing at room temperature in an inert atmosphere, treatment by at least magnetic separation and densimetric table followed by an aqueous hydrolysis, for the purposes of recovering at least: lithium in the form of carbonate or lithiophosphate, an anion of the salt dissolved in the electrolyte, and a concentrate comprising at least one metal of said cathode, wherein the salt dissolved in the electrolyte comprises hexafluorophosphate PF 6 anion and hexafluorophosphate PF 6 anion is stabilized in an aqueous solution by means of LiCl.