Hydrometallurgical Recovery of Value Metals from Spent Lithium Ion Batteries

Md. Al Hossaini Shuva¹ and ASW Kurny^1,

¹Materials and Metallurgical Engineering Department, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh

Cite this paper:
Md. Al Hossaini Shuva and ASW Kurny. Hydrometallurgical Recovery of Value Metals from Spent Lithium Ion Batteries. American Journal of Materials Engineering and Technology. 2013; 1(1):8-12. doi: 10.12691/materials-1-1-2

Abstract

Effects of reaction variables on leaching in hydrochloric acid of LiCoO₂ contained in cathodic electrode of spent lithium ion batteries were investigated. The dissolution of LiCoO₂ was found to increase with an increase in temperature, concentration of HCl, time and solid/liquid (S/L) ratio. Li and Co from LiCoO₂ were leached around 89% with addition of 3.5 Vol% of H₂O₂ as a reducing agent. The metal values contained in the leach liquor were recovered by chemical precipitation. Cobalt was separated as cobalt hydroxide and lithium was separated as lithium carbonate. The effects of pH on the extent of recovery of metal values were investigated. The products obtained were characterised by x-ray diffraction analysis.

Keywords:
Li-ion battery (LIB) leaching spent batteries recovery

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