Abstract
AbstractThe importance of Li-ion batteries is increasing every year due to the necessity for powering portable electronic equipments and electric vehicles. Due to the existing constraints for the supply of the basic elements for the production of these batteries, it is strictly necessary to recycle these batteries and recover the critical metals contained. In this paper the recovery of active cathode material from spent Li-ion batteries was investigated. The obtained cathode materials were manually dismantled and removed from the aluminum foil then immersed in acidic solutions – citric, lactic acid and subjected for ultrasonic cleaning with the goal of recovering the useful non-ferrous metals (i.e. Li, Co, Ni and Mn). The ultrasound technology has the advantages to be easy to use, to work at different temperatures without the need of additional heat and to have low working times. The results obtained and the investigations carried out on the recovered materials are presented by means of SEM-EDX analyses and X-ray diffraction.KeywordsLi-ion batteriesCathode materialsRecovery
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