Method for acid dissolution of LiCoO₂ contained in spent lithium-ion batteries

摘要

A method for the acid dissolution of LiCoO₂ contained in the cathode of lithium ion batteries, using acetic or tartaric acid as leaching agent, the method being characterized in that it comprises a first stage and a second stage, wherein said first stage comprises the step of separating the cathode components, while said second stage comprises the step of dissolving the pure LiCoO₂ with at least one acid. The method allows achieving an economically viable complete recycling process with low environmental impact.