Recovery of Al, Co, Cu, Fe, Mn, and Ni from Spent LIBs after Li Selective Separation by the COOL‐Process. Part 1: Leaching of Solid Residue from COOL‐Process

Kaiser, Doreen; Pavón, Sandra; Bertau, Martin

doi:10.1002/cite.202100098

Cited by 18 publications

(1 citation statement)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The best digestion medium was found to be 2 N H 2 SO 4 and 2 vol.% H 2 O 2 (50 °C, 2 h). In previous work we show, that the leaching efficiencies were: Co 63.2%, Cu 80.1%, Mn 79.9% and Ni 50.4% [44].…”

Section: Cool Process With Black Massmentioning

confidence: 71%

The COOL Process: A Holistic Approach Towards Lithium Recycling

Mende

Kaiser²,

Pavón³

et al. 2023

Waste Biomass Valor

Self Cite

View full text Add to dashboard Cite

Lithium is a key element in reducing mobility-induced emissions. However, processes aimed at producing lithium from hard rock mining are based on the usage of large amounts of chemicals. Additionally, only a small quantity of the mined mineral concentrates is actually valorized. In contrast, the COOL process (CO2 Leaching process) is a process that makes use of water and carbon dioxide to leach lithium from any silicate mineral, making geopolymers from the residues. On the other hand, the COOL process enables the recovery of lithium from pretreated spent lithium-ion batteries.The leaching step has been investigated concerning the selective mobilization of lithium. Further attention was brought to the mobilization of potentially disturbing ions such as fluoride, aluminum, and silicon.It was found that the CO2 leaching step is indeed suitable for the selective mobilization of lithium. Up to 65% of lithium mobilization was achieved without adding any additives and 78% by adding Na2CO3. Fluoride and silicon mobilization could be addressed by heating zinnwaldite under a wet atmosphere respectively under the addition of a carbonate. Concerning secondary resources, up to 95% of lithium could be leached from black mass, and the residue was then leached and the leach liquor separated by liquid-liquid extraction to yield the heavy metals in high recovery and selectivity.Overall, the COOL process enables the recovery of lithium from different feedstocks and valorizes the residues from the lithium leaching. This makes the COOL process a universal approach to lithium recovery. Graphical Abstract

show abstract

Section: Cool Process With Black Massmentioning

confidence: 71%

The COOL Process: A Holistic Approach Towards Lithium Recycling

Mende

Kaiser²,

Pavón³

et al. 2023

Waste Biomass Valor

Self Cite

View full text Add to dashboard Cite

show abstract

Selective Recovery of Battery‐Grade Li₂CO₃ from Spent NCM Cathode Materials Using a One‐Step Method of CO₂ Carbonation Recovery Without Acids or Bases

Ma,

Liang,

Zhang

et al. 2024

ChemSusChem

View full text Add to dashboard Cite

The recovery of spent lithium‐ion batteries by traditional acid leaching is limited by serious pollution, complicated technology, and the low purity of Li2CO3. To address the problems of the traditional acid leaching process and increasing demand for decarbonization, a technique for the selective carbonation leaching of Li and the recovery of battery‐grade Li2CO3 by a simple concentration precipitation process without acids or bases was developed. The coupling of CO2 and reducing agents could effectively promote the precipitation of MCO3 (M=Ni/Co/Mn) and the selective leaching of Li by decreasing the reducing capability needed for transition metals and decreasing the pH of the solution. The optimal selective leaching process of Li was obtained under 1 MPa CO2 with 20 g/L Na2S2O3 at an L/S ratio of 30 mL/g for 1.5 h. FT‐IR, XRD, ICP‒MS and other methods were used to reveal the multiphase interfacial reaction mechanism of the carbonation reduction of layered cathode materials, which indicated that the reducing agent Na2S2O3 could promote lattice distortion of the cathode materials and effective separation of Li. In summary, a green and economical method for the selective recovery of battery‐grade Li2CO3 using a one‐step method of CO2 carbonation recovery in a near‐neutral environment was proposed.

show abstract

High‐Selective Separation Recovery of Ni, Co, and Mn from the Spent LIBs Via Acid Dissolution and Multistage Oxidation Precipitation

Ma,

Liang,

Liu

et al. 2024

ChemSusChem

View full text Add to dashboard Cite

For recovering Ni, Co, and Mn from lithium‐ion batteries, traditional chemical precipitation methods demonstrate low selectivity and significantly contribute to environmental pollution. This study proposes a separation recovery technique for transition metals, specifically Ni, Co, and Mn, from spent LIBs, involving “acid dissolution” and “multistage oxidation precipitation”. More than 98% of transition metals can be extracted from spent LIBs using a low acid concentration (0.5 M) without reducing agents. The feasibility of separating different metals via multistage oxidation precipitation, based on their different electrode potentials for oxidizing Me2+ (Me = Mn/Co/Ni), was confirmed. The combination of oxidizing agent S2O82‐ and the precipitant OH‐ was universally applied to the fractional precipitation of Mn, Co, and Ni respectively. About 99% of Mn, 97.06% Co, and 96.62% Ni could be precipitated sequentially by changing the concentrations of S2O82‐ and the pH value of solution. XRD, XPS, XRF, ICP‐MS and other methods were employed to elucidate the mechanism behind the multistage oxidation precipitation of target metal compounds, exploiting the differential electrode potentials for oxidizing Me2+ ions. This technique surpasses traditional solvent extraction in cost‐effectiveness and selectivity, showing promise for large‐scale industrial applications in recovering Mn, Co, and Ni.

show abstract

Recovery of Al, Co, Cu, Fe, Mn, and Ni from Spent LIBs after Li Selective Separation by the COOL‐Process. Part 1: Leaching of Solid Residue from COOL‐Process

Cited by 18 publications

References 20 publications

The COOL Process: A Holistic Approach Towards Lithium Recycling

The COOL Process: A Holistic Approach Towards Lithium Recycling

Selective Recovery of Battery‐Grade Li₂CO₃ from Spent NCM Cathode Materials Using a One‐Step Method of CO₂ Carbonation Recovery Without Acids or Bases

High‐Selective Separation Recovery of Ni, Co, and Mn from the Spent LIBs Via Acid Dissolution and Multistage Oxidation Precipitation

Contact Info

Product

Resources

About

Recovery of Al, Co, Cu, Fe, Mn, and Ni from Spent LIBs after Li Selective Separation by the COOL‐Process. Part 1: Leaching of Solid Residue from COOL‐Process

Cited by 18 publications

References 20 publications

The COOL Process: A Holistic Approach Towards Lithium Recycling

The COOL Process: A Holistic Approach Towards Lithium Recycling

Selective Recovery of Battery‐Grade Li2CO3 from Spent NCM Cathode Materials Using a One‐Step Method of CO2 Carbonation Recovery Without Acids or Bases

High‐Selective Separation Recovery of Ni, Co, and Mn from the Spent LIBs Via Acid Dissolution and Multistage Oxidation Precipitation

Contact Info

Product

Resources

About

Selective Recovery of Battery‐Grade Li₂CO₃ from Spent NCM Cathode Materials Using a One‐Step Method of CO₂ Carbonation Recovery Without Acids or Bases