This work presents an enhanced hydrometallurgical process for recycling lithium ion batteries. First, end-of-life batteries were processed in a physical pre-treatment plant to obtain a representative electrode material. The resulting leachate was purified forth by iron-precipitation, liquid–liquid extractions, and an innovative Li–Na separation, in order to obtain valuable products. These products include high-grade graphite, cobalt oxide (Co3O4, purity 83%), cobalt oxalate (CoC2O4, purity 96%), nickel oxide (NiO, purity 89%), and lithium carbonate (Li2CO3, purity 99.8%). The recovery rate was quantitative for graphite, between 80% and 85% for cobalt depending on the nature of the recovery method, 90% for nickel, and 72% for lithium. Secondary streams were also valorized to obtain sodium sulfate (Na2SO4, purity 96%), and MnCoFe2O4 magnetic nano-sorbents according to the zero-waste concept. In order to close the loop, recycled Co3O4 and NiO were used as conversion-type anode materials for advanced lithium ion batteries showing promising performances.

Closed-loop hydrometallurgical treatment of end-of-life lithium ion batteries: towards zero-waste process and metal recycling in advanced batteries / Atia, Thomas Abo; Elia, Giuseppe; Hahnd, Robert; Altimari, Pietro; Pagnanelli, Francesca. - In: JOURNAL OF ENERGY CHEMISTRY. - ISSN 2095-4956. - 35:(2019), pp. 220-227. [10.1016/j.jechem.2019.03.022]

Closed-loop hydrometallurgical treatment of end-of-life lithium ion batteries: towards zero-waste process and metal recycling in advanced batteries

Atia, Thomas Abo;Altimari, Pietro;Pagnanelli, Francesca
Writing – Review & Editing
2019

Abstract

This work presents an enhanced hydrometallurgical process for recycling lithium ion batteries. First, end-of-life batteries were processed in a physical pre-treatment plant to obtain a representative electrode material. The resulting leachate was purified forth by iron-precipitation, liquid–liquid extractions, and an innovative Li–Na separation, in order to obtain valuable products. These products include high-grade graphite, cobalt oxide (Co3O4, purity 83%), cobalt oxalate (CoC2O4, purity 96%), nickel oxide (NiO, purity 89%), and lithium carbonate (Li2CO3, purity 99.8%). The recovery rate was quantitative for graphite, between 80% and 85% for cobalt depending on the nature of the recovery method, 90% for nickel, and 72% for lithium. Secondary streams were also valorized to obtain sodium sulfate (Na2SO4, purity 96%), and MnCoFe2O4 magnetic nano-sorbents according to the zero-waste concept. In order to close the loop, recycled Co3O4 and NiO were used as conversion-type anode materials for advanced lithium ion batteries showing promising performances.
advanced LIB; cobalt; graphite; LIB recycling; lithium; nickel
01 Pubblicazione su rivista::01a Articolo in rivista
Closed-loop hydrometallurgical treatment of end-of-life lithium ion batteries: towards zero-waste process and metal recycling in advanced batteries / Atia, Thomas Abo; Elia, Giuseppe; Hahnd, Robert; Altimari, Pietro; Pagnanelli, Francesca. - In: JOURNAL OF ENERGY CHEMISTRY. - ISSN 2095-4956. - 35:(2019), pp. 220-227. [10.1016/j.jechem.2019.03.022]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1295897
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