Role of Mechanical Activation in Enhancing Li and Co Recovery from Spent Li-ion Batteries through Citric Acid Leaching

Year 2024, Volume: 28 Issue: 5, 1000 - 1009, 25.10.2024

Hasan Algül , Figen Algül

https://doi.org/10.16984/saufenbilder.1506764

Abstract

This study investigates the effect of mechanical activation parameters such as mechanical activation rotation speed (0-550 rpm), mechanical activation time (15-75 min), and solid/ball ratio (1/20-1/50) on the leaching efficiencies in the recycling of lithium-ion batteries. In addition to mechanical activation, the study explores the use of organic acids, specifically citric acid, as leaching agents to enhance metal recovery. A green and innovative recycling process is developed, focusing on optimal conditions of 15 minutes activation time, 450 rpm rotational speed, and a 1/20 solid/ball ratio. The synergistic effect of mechanical activation and organic acid leaching is examined to optimize the process for sustainability and efficiency in recovering valuable metals from lithium-ion batteries. Results indicate that these parameters significantly influence leaching efficiencies, with the highest yields achieved under the identified conditions. This research contributes to advancing sustainable practices in battery recycling by integrating mechanical activation and organic acid leaching as effective and environmentally friendly approaches. The findings highlight the potential of these methods in advancing green technology and materials science, paving the way for more efficient and eco-friendly battery recycling processes.

Keywords

Batery recycling, Citric acid leaching, Li and co extraction, Mechanical activation rotation speed, Mechanical activation time

Supporting Institution

Sakarya University Science Research Projects Coordinators

Project Number

SAU BAP 2022-6-23-63

Thanks

We would like to thank Exitcom A.Ş. for providing us with the waste batteries used in this study.

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