Resource Recovery and Material Characterization of Metals from Waste Li-ion Batteries by an Eco-Friendly Leaching Agent. (2017)

• Record Type: Journal Article
• Authors: Mylarappa, M.; Venkata Lakshmi, V.; Vishnu Mahesh, K.R.; Nagaswarupa, H.P.; Prashantha, S.C.; Shravana Kumara, K.N.; Siddeswara, D.M.K.; Raghavendra, N.
• Is Part Of: Materials today. Volume 4:Number 11(2017)Part 3
• Page Start: 12215
• Page End: 12222
• Publication Date: 2017
• Subjects: Spent Lithium ion battery -- Leachant -- Recovery -- LiCoO2; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2017.09.152
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: In the present work, a hydrometallurgical process based on leaching is applied to recover lithium and cobalt from waste lithium ion batteries (LIBs) using a hydrogen peroxide as leaching agent. This process is found to be simple, eco-friendly and adequate for the recovery of valuable metals from spent LIBs. Effects of reaction variables on leaching in hydrochloric acid of LiCoO2 contained in cathodic electrode of waste 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. The elemental composition and phase composition of recovered metals were confirmed by Energy Dispersive X-ray analysis (EDAX) and X-ray Diffractometer (XRD). Surface morphology of the recovered metals were examined using scanning electron microscopy (SEM) and also the functional group analyses were done by Fourier transform infrared (FTIR) spectrometry.