Manufacturing of Lithium Cobalt Oxide from Spent Lithium-Ion Batteries: A Cathode Material
Disposal of large amount of spent lithium-ion batteries will cause adverse environment impact as well as will create waste management problem. An eco-friendly disposal method needs to be devised. Recycling is one of the best options to address the disposal problem of the spent batteries. Use of Extracted metals from recycling for manufacturing of cathode active material, i.e., lithium cobalt oxide will help in reducing the rate of depletion of these valuable metals. Recycling process consists of peeling, dissolution, and extraction steps. Variations of parameters for enhancing the peeling and the dissolution steps along with extraction of cobalt oxalate and manufacturing of lithium cobalt oxide have been studied here. Optimal parametric values have been identified for higher dissolution efficiency. The dissolution efficiency was found to be 95.15% at the optimal operating condition. The extraction efficiency of cobalt oxalate is found to be 91% with purity of 90%. The purity of manufactured lithium cobalt oxide is found to be 91%.
KeywordsLithium-ion batteries Recycling Spent batteries Dissolution Lithium cobalt oxide
Acknowledgements for Financial Support
The authors acknowledge the department of science and technology, Government of India for financial support for carrying out this work under the DST-SERB-ECR project (ECR/2016/000422).