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.

Process simulation for Li-MnO2 primary battery recycling: Cryo-mechanical and hydrometallurgical treatments at pilot scale / Schiavi, P. G.; Baldassari, L.; Altimari, P.; Moscardini, E.; Toro, L.; Pagnanelli, F.. - In: ENERGIES. - ISSN 1996-1073. - 13:17(2020), pp. 1-12. [10.3390/en13174546]

Process simulation for Li-MnO2 primary battery recycling: Cryo-mechanical and hydrometallurgical treatments at pilot scale

Schiavi P. G.;Altimari P.;Pagnanelli F.
2020

Abstract

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.
2020
Li primary batteries; pilot scale demonstration; process simulation; recycling
01 Pubblicazione su rivista::01a Articolo in rivista
Process simulation for Li-MnO2 primary battery recycling: Cryo-mechanical and hydrometallurgical treatments at pilot scale / Schiavi, P. G.; Baldassari, L.; Altimari, P.; Moscardini, E.; Toro, L.; Pagnanelli, F.. - In: ENERGIES. - ISSN 1996-1073. - 13:17(2020), pp. 1-12. [10.3390/en13174546]
File allegati a questo prodotto
File Dimensione Formato  
Schiavi_Process-Simulation_2020.pdf

accesso aperto

Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Creative commons
Dimensione 2.79 MB
Formato Adobe PDF
2.79 MB Adobe PDF

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1449678
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 1
  • ???jsp.display-item.citation.isi??? 2
social impact