Synergistic Recovery of Valuable Metals from Spent Nickel–Metal Hydride Batteries and Lithium-Ion Batteries

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Liu, Fupeng
dc.contributor.author Peng, Chao
dc.contributor.author Porvali, Antti
dc.contributor.author Wang, Zulin
dc.contributor.author Wilson, Benjamin P.
dc.contributor.author Lundström, Mari
dc.date.accessioned 2019-10-01T12:07:03Z
dc.date.available 2019-10-01T12:07:03Z
dc.date.issued 2019-08-29
dc.identifier.citation Liu , F , Peng , C , Porvali , A , Wang , Z , Wilson , B P & Lundström , M 2019 , ' Synergistic Recovery of Valuable Metals from Spent Nickel–Metal Hydride Batteries and Lithium-Ion Batteries ' ACS Sustainable Chemistry and Engineering . https://doi.org/10.1021/acssuschemeng.9b02863 , https://doi.org/10.1021/acssuschemeng.9b02863 en
dc.identifier.issn 2168-0485
dc.identifier.other PURE UUID: 1c96dce4-bb43-421a-b033-dfe122d295db
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/synergistic-recovery-of-valuable-metals-from-spent-nickelmetal-hydride-batteries-and-lithiumion-batteries(1c96dce4-bb43-421a-b033-dfe122d295db).html
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85073113486&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/36815292/acssuschemeng.9b02863.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/40525
dc.description.abstract This research presents a sustainable approach for the simultaneous recycling of spent lithium-ion batteries (LIBs) and nickel–metal hydride batteries (NiMHs). First, dissolution of LIBs and NiMHs were found to be mutually co-promoted, resulting in above 98% extraction of Li, Co, Ni, and rare-earth elements (REEs) without the need for any oxidant or reductant additions. After leaching, >97% of REEs were recovered as a REEs-alkali double sulfate precipitate with the addition of NaOH and Na2SO4 precipitants. This REEs-free solution was then further processed to separate and recover the battery metals present: Mn, Co, Ni, and Li. The resultant residual solution (rich in NaOH and Na2SO4) was redirected to the REEs precipitation step, decreasing both the need of precipitants (e.g., Na2SO4) as well as the costs related to the treatment of the high-Na waste solution. Moreover, the Li remaining in the waste solution can be circulated back into the main process, resulting in an exceptionally high Li recovery of >93% inthe form of high-purity Li3PO4 (99.95%). This is a marked improvement over the previously reported Li recovery levels of 60–80%. Overall, this newly developed process has considerable environmental and economic advantages for the recovery of valuable metals from mixed LIBs and NiMHs wastes. en
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher AMERICAN CHEMICAL SOCIETY
dc.relation.ispartofseries ACS Sustainable Chemistry and Engineering en
dc.rights openAccess en
dc.subject.other Chemistry(all) en
dc.subject.other Environmental Chemistry en
dc.subject.other Chemical Engineering(all) en
dc.subject.other Renewable Energy, Sustainability and the Environment en
dc.subject.other 216 Materials engineering en
dc.subject.other 218 Environmental engineering en
dc.subject.other 116 Chemical sciences en
dc.subject.other Metals en
dc.subject.other recycling en
dc.subject.other material efficiency en
dc.title Synergistic Recovery of Valuable Metals from Spent Nickel–Metal Hydride Batteries and Lithium-Ion Batteries en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Chemical and Metallurgical Engineering
dc.contributor.department Hydrometallurgy and Corrosion
dc.subject.keyword Lithium
dc.subject.keyword Metals circular economy
dc.subject.keyword Rare-earth elements
dc.subject.keyword Sustainable recycling
dc.subject.keyword Synergistic leaching
dc.subject.keyword Chemistry(all)
dc.subject.keyword Environmental Chemistry
dc.subject.keyword Chemical Engineering(all)
dc.subject.keyword Renewable Energy, Sustainability and the Environment
dc.subject.keyword 216 Materials engineering
dc.subject.keyword 218 Environmental engineering
dc.subject.keyword 116 Chemical sciences
dc.subject.keyword Metals
dc.subject.keyword recycling
dc.subject.keyword material efficiency
dc.identifier.urn URN:NBN:fi:aalto-201910015545
dc.identifier.doi 10.1021/acssuschemeng.9b02863
dc.type.version publishedVersion


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