LAPSE:2023.26172
Published Article
LAPSE:2023.26172
Process Simulation for Li-MnO2 Primary Battery Recycling: Cryo-Mechanical and Hydrometallurgical Treatments at Pilot Scale
Pier Giorgio Schiavi, Ludovica Baldassari, Pietro Altimari, Emanuela Moscardini, Luigi Toro, Francesca Pagnanelli
March 31, 2023
Li primary batteries are currently treated along with other Li batteries in several big pyro- metallurgical plants in Northern EU countries. Nevertheless, pyro-metallurgical processes do not allow for Mn and Li recycling and present negative environmental impacts, on the other hand hydrometallurgical processing can potentially ensure the integral recovery of all materials in Li primary batteries. In this work, preliminary experimental findings obtained in the LIFE-LIBAT project (LIFE16 ENV/IT/000389) are reported. In this project, end of life Li(0)-MnO2 batteries were cryo-mechanically treated and then the metals were recovered by a hydrometallurgical process. Representative samples of end of life Li(0) batteries were characterized by type and composition. Batteries were stabilized in an N2 bath and then crushed, sieved, and magnetically separated in the SEVal pilot units. Separated fractions (fine fraction, magnetic coarse fraction, and non-magnetic coarse fraction) were chemically characterized for target metal content (Li and Mn). Fractions were first treated for Li extraction and recovery, then the fine fraction was also leached for Mn recovery. Mass balances evidenced a 55% recycling rate and process simulations outlined profitability in the potentiality range in agreement with battery collection fluxes.
Keywords
Li primary batteries, pilot scale demonstration, process simulation, recycling
Suggested Citation
Schiavi PG, Baldassari L, Altimari P, Moscardini E, Toro L, Pagnanelli F. Process Simulation for Li-MnO2 Primary Battery Recycling: Cryo-Mechanical and Hydrometallurgical Treatments at Pilot Scale. (2023). LAPSE:2023.26172
Author Affiliations
Schiavi PG: Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy [ORCID]
Baldassari L: Eco Recycling Srl, Via di Vannina 88/94, 00156 Rome, Italy
Altimari P: Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; Eco Recycling Srl, Via di Vannina 88/94, 00156 Rome, Italy
Moscardini E: Eco Recycling Srl, Via di Vannina 88/94, 00156 Rome, Italy
Toro L: Eco Recycling Srl, Via di Vannina 88/94, 00156 Rome, Italy
Pagnanelli F: Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; Eco Recycling Srl, Via di Vannina 88/94, 00156 Rome, Italy
Journal Name
Energies
Volume
13
Issue
17
Article Number
E4546
Year
2020
Publication Date
2020-09-02
Published Version
ISSN
1996-1073
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Original Submission
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PII: en13174546, Publication Type: Journal Article
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LAPSE:2023.26172
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doi:10.3390/en13174546
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Mar 31, 2023
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