NOVELTY - Lithium-ion compounds found in secondary lithium-ion batteries are extracted by extracting lithium from electrodes and separators by immersing the electrodes and the separators into a mixture of commercial ethanol and acetone at 5%; after two hours the extraction will be completed, removing the electrodes, separators, nickel contacts, aluminum contacts and plastic tapes and using them subsequently for recycling; and subjecting the solution through a filtering process to obtain lithium compounds which are dried and weighed.    USE - The process is used for extracting lithium-ion compounds found in secondary lithium-ion batteries.    ADVANTAGE - The process allows the separation of lithium compounds found in lithium-ion batteries at the end of their lifespan. The process is simple, economically feasible, efficient, and at a low energy consumption to separate the lithium compounds present in lithium batteries. Besides the economical aspects regarding recovery and reuse of materials, the process also contributes to the conservation and preservation of the environment.    DETAILED DESCRIPTION - Extraction of lithium-ion compounds found in secondary lithium-ion batteries includes extracting lithium from electrodes and separators by immersing the electrodes and the separators into a mixture of commercial ethanol and acetone at 5%; after two hours the extraction will be completed, removing the electrodes, separators, nickel contacts, aluminum contacts and plastic tapes and using them subsequently for recycling; and subjecting the solution through a filtering process to obtain lithium compounds which are dried and weighed. The filtrate, besides the lithium compounds, the alcohol solution, acetone, solvent residues, battery electrolytes are obtained. Apart from that, the filtrate obtained from filtering (alcohol, acetone and batteries electrolyte residues) is distilled, obtaining alcohol at 96degrees GL (Not defined) that can be used again in the extraction process of lithium compounds.