A Quantitative Analysis on the Effect of Process Parameters in the Recovery of Lithium (as Lithium Carbonate) from Mixed Spent Lithium-Ion Batteries (libs) by Hydrometallurgical Process
Student: Chibuike Innocent OKORIE (Project, 2025)
Department of Metallurgical and Materials Engineering
University of Nigeria, Nsukka, Enugu State
Abstract
This study quantitatively analyzes how key process parameters affect lithium carbonate (Li2CO3) recovery from spent lithium-ion batteries (LIBs) using hydrometallurgy. It aims to optimize recovery by examining variables like leaching temperature (50–80°C), acid concentration (1.5–3.0 M sulfuric and citric acid mix), solid-to-liquid (S/L) ratio (1:10), oxidant (2M H2O2), and leaching time. The process involves leaching mixed spent cathode powder with the acid mixture, followed by precipitation to extract Li as Li2CO3. Optimal extraction efficiency of 95.20% (3.593g Li2CO3) was achieved with 2.5M acid, 70°C, S/L ratio of 10g/100mL, 2M H2O2, and 90 minutes leaching time. Results show all parameters— temperature, time, acid concentration, S/L ratio, and oxidant significantly impact Li2CO3 recovery efficiency
Keywords
For the full publication, please contact the author directly at: innocent.okorie.251137@unn.edu.ng
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Institutions
- Sokoto State University, Sokoto, Sokoto State 42
- St. Albert The Great Major Seminary, Abeokuta. (affl. To University of Benin) 1
- Sule Lamido University, Kafin Hausa, Jigawa State 4
- Tai Solarin University of Education, Ijagun, Ogun State 18
- Tansian University, Oba, Anambra State 1
- Taraba State University, Jalingo, Taraba State 32
- Temple-Gate Polytechnic, Osisioma, Abia State 1
- The Oke-Ogun Polytechnic, Saki, Oyo State 6
- The Polytechnic, Ibadan, Oyo State 13
- THOMAS ADEWUMI UNIVERSITY, OKO-IRESE, KWARA STATE 1