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Meeting 2026 TMS Annual Meeting & Exhibition
Symposium Advances in Recycling and Environmental Technologies
Presentation Title Sustainable Recovery of Valuable Metals from NMC 811 Batteries: A Hydrometallurgical Approach with Life Cycle Assessment
Author(s) Lucas Fonseca Guimarães, Mentore Vaccari, Amilton Barbosa Botelho Junior, Denise Crocce Romano Espinosa
On-Site Speaker (Planned) Lucas Fonseca Guimarães
Abstract Scope An effective hydrometallurgical recycling route for NMC 811 batteries was developed, focusing on recovering valuable metals from sulfuric acid leachates. This study investigated purification techniques, namely solvent extraction, ion exchange resins, and selective precipitation, to isolate lithium, nickel, cobalt, and manganese while removing aluminum impurities. The optimized process yielded high-purity solid compounds of LiOH, Ni/Co oxalates, and MnO2. Subsequent life cycle analysis (LCA) of the proposed route, scaled to produce 1000kg of LiOH, quantified the potential environmental impacts. This research provides critical insights into sustainable battery recycling, highlighting a viable pathway for resource recovery and minimizing environmental footprint.
Proceedings Inclusion? Undecided
Keywords Hydrometallurgy, Sustainability, Modeling and Simulation

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