|About this Abstract
|2021 TMS Annual Meeting & Exhibition
|Rare Metal Extraction & Processing
|Application of Eutectic Freeze Crystallization in Recycling of Li-ion Batteries
|Yiqian Ma, Michael Svärd, James Gardner, Richard T. Olsson, Kerstin Forsberg
|On-Site Speaker (Planned)
The widespread and increasing use of Li-ion batteries has led to an impending need for recycling solutions. Consequently, recycling of spent Li-ion batteries with energy-efficient, environmentally sustainable strategies has become a research hotspot. In this work, eutectic freeze crystallization (EFC), which requires less energy input than conventional evaporative crystallization (EC), has been investigated as a method for recovery of Ni and Co sulfates from synthetic acidic strip solution. Two binary sulfate systems have been studied. Batch EFC experiments have been conducted. It is shown that, with suitable control of supersaturation, ice and salt crystals can be recovered as separate phases below the eutectic temperatures. The work shows that EFC is a promising alternative to EC for the recovery of Ni and Co sulfates from spent Li-ion batteries.
|Hydrometallurgy, Recycling and Secondary Recovery, Copper / Nickel / Cobalt