Pyrometallurgical Method for Recycling Shredded Material of Waste from the Production of New and Defective or End-of-Life Batteries for Electric Vehicles or Portable Li-Ion Batteries
AssigneeEco'ring
InventorJean-Luc Roth
Life of this patent
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Abstract
A pyrometallurgical process for recycling shredded spent electric vehicle batteries of Li-ion type and/or waste from the production of these new batteries and battery rejects, and/or portable batteries of Li-ion type. The process entails the addition of iron, smelting via the supply of energy, separation of a slag, oxidizing treatment and separation of a second slag.
Claims12
A process for recovering black mass (100) derived from lithium batteries, characterized in that the process comprises an addition (E1) of an iron source (110) to the black mass to obtain a mixture, carburizing smelting (E2) of the mixture by supply of energy to obtain a carburized metal bath (130), separating a first slag (140), followed by oxidizing treatment (E3) of the carburized metal bath thus refined, and separation of a second slag (160) to obtain a ferroalloy (150).
Dependencies are inferred from the claim text.