Setembro 2023 vol. 10 num. 1 - XXX Simpósio Internacional de Engenharia Automotiva

Trabalho completo - Open Access.

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Análise da demanda energética para reciclagem de baterias de veículos elétricos através de um processo hidrometalúrgico flexível

Analysis of energy demand for recycling electric vehicle batteries through a flexible hydrometallurgical process

GOBO, Luciana Assis ; FERRARESE, Andre ; KUMOTO, Elio ; OBARA, Rafael ; BOTELHO JR, ; Amilton Barbosa, ; TENÓRIO, Jorge Alberto Soares ; ESPINOSA, Denise C. R. ;

Trabalho completo:

A descarbonização do setor de transportes através da eletrificação é limitada se considerarmos o ciclo de vida das baterias de íon-lítio desde a manufatura até o descarte. Tais baterias, ao chegar ao fim da vida útil, devem ser recicladas pois, ao recuperar estes metais críticos, aumenta a circularidade dos materiais e a produção de baterias novamente, além de diminuir a emissão de CO2 e os impactos associados às atividades de mineração. Atualmente os processos de reciclagem utilizam técnicas de pirometalurgia empregando alta temperatura, elevado consumo energético e maior emissão de CO2. A hidrometalurgia tem se destacado como um processo promissor para a reciclagem de baterias, com elevada eficiência, emprego de baixas temperaturas, menor emissão e menor consumo de energia. O presente trabalho objetiva analisar a demanda energética e o rendimento de materiais reciclados através do processo hidrometalúrgico desenvolvido, uma vez que este visa minimizar a emissão de resíduos na natureza com um processo flexível para reciclagem de baterias de íon-lítio. Foram processados diferentes tipos de baterias, a separação física e lixiviação recuperaram mais de 90% dos minerais de interesse com uma redução de consumo energético de até 65% em comparação com as técnicas pirometalúrgicas.

Trabalho completo:

The decarbonization of the transport sector through electrification is limited if we consider the life cycle of lithium-ion batteries from manufacture to disposal. Such batteries, when reaching the end of their useful life, must be recycled because, by recovering these critical metals, it increases the circularity of the materials and the production of batteries again, in addition to reducing CO2 emissions and the impacts associated with mining activities. Currently, recycling processes use pyrometallurgy techniques, employing high temperature, high energy consumption and higher CO2 emissions. Hydrometallurgy has stood out as a promising process for recycling batteries, with high efficiency, use of low temperatures, lower emissions, and lower energy consumption. This work aims to analyze the energy demand and the yield of recycled materials through the developed hydrometallurgical process, since it aims to minimize the emission of waste in nature with a flexible process for recycling lithium-ion batteries. Different types of batteries were processed, physical separation and leaching recovered more than 90% of the minerals of interest with a reduction in energy consumption of up to 65% compared to pyrometallurgical techniques.

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DOI: 10.5151/simea2023-PAP59

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Como citar:

GOBO, Luciana Assis; FERRARESE, Andre; KUMOTO, Elio; OBARA, Rafael; BOTELHO JR, ; Amilton Barbosa, ; TENÓRIO, Jorge Alberto Soares; ESPINOSA, Denise C. R.; "Análise da demanda energética para reciclagem de baterias de veículos elétricos através de um processo hidrometalúrgico flexível", p. 349-354 . In: Anais do XXX Simpósio Internacional de Engenharia Automotiva . São Paulo: Blucher, 2023.
ISSN 2357-7592, DOI 10.5151/simea2023-PAP59

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