Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/147696
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dc.contributor.authorRoy, Joseph Jeganen_US
dc.contributor.authorSrinivasan, Madhavien_US
dc.contributor.authorCao, Binen_US
dc.date.accessioned2021-04-14T04:22:07Z-
dc.date.available2021-04-14T04:22:07Z-
dc.date.issued2021-
dc.identifier.citationRoy, J. J., Srinivasan, M. & Cao, B. (2021). Bioleaching as an eco-friendly approach for metal recovery from spent NMC-based lithium-ion batteries at a high pulp density. ACS Sustainable Chemistry and Engineering, 9(8), 3060-3069. https://dx.doi.org/10.1021/acssuschemeng.0c06573en_US
dc.identifier.issn2168-0485en_US
dc.identifier.other0000-0002-8727-7517-
dc.identifier.other0000-0002-5497-3428-
dc.identifier.other0000-0002-9462-496X-
dc.identifier.urihttps://hdl.handle.net/10356/147696-
dc.description.abstractLithium-ion batteries (LIBs) are extensively used for power storage in most gadgets, electric vehicles (EV), and energy storage devices. Spent LIBs are an excellent source of metals, which can be recycled and reused in new batteries to reduce environmental impacts. Our current study reports bioleaching-mediated metal recovery from spent nickel-, manganese-, cobalt (NMC)-based LIBs at a high solid content, using an autotrophic bacterium Acidithiobacillus ferrooxidans. Inductively coupled plasma-optical emission spectrometry (ICP-OES) analysis showed recoveries of 90% Ni, 92% Mn, 82% Co, and 89% Li from spent LIBs in 72 h at a solid content of 100 g/L. The X-ray diffraction (XRD) and scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDX) analyses of the LIB powder before and after bioleaching confirmed that most of the metals leached out from the batteries. A high leaching efficiency was achieved by elevated concentrations of H2SO4 and ferric ion in the A. ferrooxidans culture as well as replenished bacterial culture for three cycles during the bioleaching. The bioleaching process reported here can be used to efficiently extract metals from spent EV batteries in an eco-friendly manner.en_US
dc.description.sponsorshipMinistry of National Development (MND)en_US
dc.description.sponsorshipNational Environmental Agency (NEA)en_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.language.isoenen_US
dc.relationSCARCE USS-IF-2018-4en_US
dc.relation.ispartofACS Sustainable Chemistry and Engineeringen_US
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Sustainable Chemistry and Engineering, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acssuschemeng.0c06573en_US
dc.subjectEngineering::Materialsen_US
dc.titleBioleaching as an eco-friendly approach for metal recovery from spent NMC-based lithium-ion batteries at a high pulp densityen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Civil and Environmental Engineeringen_US
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.contributor.researchEnergy Research Institute @ NTU (ERI@N)en_US
dc.contributor.researchSingapore Centre for Environmental Life Sciences and Engineering (SCELSE)en_US
dc.identifier.doi10.1021/acssuschemeng.0c06573-
dc.description.versionAccepted versionen_US
dc.identifier.scopus2-s2.0-85101968731-
dc.identifier.issue8en_US
dc.identifier.volume9en_US
dc.identifier.spage3060en_US
dc.identifier.epage3069en_US
dc.subject.keywordsBioleachingen_US
dc.subject.keywordsNMC Batteryen_US
dc.description.acknowledgementThis SCARCE project is supported by the National Research Foundation, Prime Minister's Office, Singapore, the Ministry of National Development, Singapore, and National Environment Agency, Ministry of Sustainability and the Environment, Singapore under the Closing the Waste Loop R&D Initiative as part of the Urban Solutions & Sustainability – Integration Fund (Award No. USS-IF-2018-4).en_US
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