{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Yang X"],"funding":["Kunming University of Science and Technology","National Natural Science Foundation of China","Yunnan Provincial Department of Education","National Key Research and Development Program of China","Applied Basic Research Key Project of Yunnan"],"pagination":["268-277"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC8690296"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["11(1)"],"pubmed_abstract":["The novel strategy of multi-step directional precipitation is proposed for recovering valuable metals from the leachate of cathode material obtained by mechanical disassembly from mixed spent lithium-ion batteries. Based on thermodynamics and directional precipitation, Mn<sup>2+</sup> is selectively precipitated under conditions of MRNM (molar ratio of (NH<sub>4</sub>)<sub>2</sub>S<sub>2</sub>O<sub>8</sub> to Mn<sup>2+</sup>) = 3, pH = 5.5 and 80 °C for 90 min. Ni<sup>2+</sup> was then selectively precipitated using C<sub>4</sub>H<sub>8</sub>N<sub>2</sub>O<sub>2</sub> under conditions of pH = 6, MRCN (molar ratio of C<sub>4</sub>H<sub>8</sub>N<sub>2</sub>O<sub>2</sub> to Ni<sup>2+</sup>) = 2, 30 °C and 20 min. Then, the pH was adjusted to 10 to precipitate Co<sup>2+</sup> as Co(OH)<sub>2</sub>. Finally, Li<sup>+</sup> was recovered by Na<sub>2</sub>CO<sub>3</sub> at 90 °C. The precipitation rates of Mn, Ni, Co, and Li reached 99.5%, 99.6%, 99.2% and 90%, respectively. The precipitation products with high purity can be used as raw materials for industrial production based on characterization. The economical and efficient recovery process can be applied in industrialized large-scale recycling of spent lithium-ion batteries."],"journal":["RSC advances"],"pubmed_title":["Recovery of valuable metals from mixed spent lithium-ion batteries by multi-step directional precipitation."],"pmcid":["PMC8690296"],"funding_grant_id":["2018FB087","52004116","2019YFC1803501","51764029","20190015","202001AU070039","2020J0070","2019YFC1907900"],"pubmed_authors":["Yang X","Ning P","Meng Q","Zhang Y","Li Q","Dong P"],"additional_accession":[]},"is_claimable":false,"name":"Recovery of valuable metals from mixed spent lithium-ion batteries by multi-step directional precipitation.","description":"The novel strategy of multi-step directional precipitation is proposed for recovering valuable metals from the leachate of cathode material obtained by mechanical disassembly from mixed spent lithium-ion batteries. Based on thermodynamics and directional precipitation, Mn<sup>2+</sup> is selectively precipitated under conditions of MRNM (molar ratio of (NH<sub>4</sub>)<sub>2</sub>S<sub>2</sub>O<sub>8</sub> to Mn<sup>2+</sup>) = 3, pH = 5.5 and 80 °C for 90 min. Ni<sup>2+</sup> was then selectively precipitated using C<sub>4</sub>H<sub>8</sub>N<sub>2</sub>O<sub>2</sub> under conditions of pH = 6, MRCN (molar ratio of C<sub>4</sub>H<sub>8</sub>N<sub>2</sub>O<sub>2</sub> to Ni<sup>2+</sup>) = 2, 30 °C and 20 min. Then, the pH was adjusted to 10 to precipitate Co<sup>2+</sup> as Co(OH)<sub>2</sub>. Finally, Li<sup>+</sup> was recovered by Na<sub>2</sub>CO<sub>3</sub> at 90 °C. The precipitation rates of Mn, Ni, Co, and Li reached 99.5%, 99.6%, 99.2% and 90%, respectively. The precipitation products with high purity can be used as raw materials for industrial production based on characterization. The economical and efficient recovery process can be applied in industrialized large-scale recycling of spent lithium-ion batteries.","dates":{"release":"2020-01-01T00:00:00Z","publication":"2020 Dec","modification":"2025-04-05T13:07:58.454Z","creation":"2025-04-05T13:07:58.454Z"},"accession":"S-EPMC8690296","cross_references":{"pubmed":["35423005"],"doi":["10.1039/d0ra09297e"]}}