Method of Recovering Metals from Lithium Batteries

Lithium ion batteries are the most common rechargeable batteries in consumer electronics [1]. There is an inconsistent policy about the fate of discarded lithium ion batteries in e-waste that isdistributed internationally. Lithium batteries contain potentially toxic materials including metals,such as copper, nickel and lead, and organic chemicals, such as toxic and flammable electrolytes.Defunct Li-ion batteries are classified as hazardous due to their lead (Pb) (6.29 mg/kg), cobalt(163,544 mg/kg), copper (98,694 mg/kg) and nickel (9525 mg/kg) contents with exceeded limitsof chromium, lead, arsenic and thallium [2]. Also the resources of some metals such as Lithium and Cobalt are limited in worldwide [3].These reasons encourage us to recover and recycle the components of spent batteries, especiallylaptop batteries. In present project we tried to recycle and recover the components of Cylindrical Lithium ion secondary battery with functional pin by different physical and chemical processes.

Keywords:

Lithium , Cobalt , Leaching , Thermal treatment , Separation