A novel process for leaching of metals from LiNi1/3Co1/3Mn1/3O2 material of spent lithium ion batteries: Process optimization and kinetics aspects

作者：Meng, Qi; Zhang, Yingjie^*; Dong, Peng^*; Liang, Feng

来源：Journal of Industrial and Engineering Chemistry, 2018, 61: 133-141.

DOI：10.1016/j.jiec.2017.12.010

• Spent LiNi1/3Co1/3Mn1/3O2 material
• Leaching
• Electrochemical cathode reduction
• Kinetics
• EIS

A novel process of electrochemical cathode reduction has been developed for leaching of metals from spent LiNi1/3Co1/3Mn1/3O2 material. The leaching efficiencies of Li, Ni, Co and Mn reached to 100, 99.87, 99.58 and 99.82%, respectively with 1.5 mol/Lmalic acid and working voltage of 8 V at 300 r/min and 60 degrees C for 30 min. Kinetics analysis indicates that leaching process is controlled by surface chemical reaction. The E-a for Li, Ni, Co and Mn was 41.71, 42.83, 44.38 and 43.17 kJ/mol, respectively. Based on EIS analysis, leaching process is mainly controlled by charge transfer resistance of the surface chemical reaction.

• 出版日期2018-5-25
• 单位昆明理工大学