Recovery nano-flake (100 nm thickness) of zero-valent manganese from spent lithium-ion batteries

Yao, Zichun; Huang, Zhe; Song, Qingbin; Tang, Yetao; Ruan, Jujun

doi:10.1016/j.jclepro.2020.123867

Cited by 14 publications

(5 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, manganese was not observed in the Ni–Co alloy particles nor in other SEM and mapping images, suggesting that manganese was separated from the original area. The manganese flakes collected from the low-temperature area of the tubular furnace confirmed the vaporization of zero-valent manganese at temperatures higher than 1513 K as well as its separation from the synthesis area . To obtain high-purity γ-LiAlO 2 , Ni–Co alloy particles were removed from the sample by magnetic separation.…”

Section: Resultsmentioning

confidence: 80%

“…The manganese flakes collected from the low-temperature area of the tubular furnace confirmed the vaporization of zerovalent manganese at temperatures higher than 1513 K as well as its separation from the synthesis area. 41 To obtain highpurity γ-LiAlO 2 , Ni−Co alloy particles were removed from the sample by magnetic separation. As a result, high-purity polycrystalline γ-LiAlO 2 was obtained after vacuum synthesis and magnetic separation.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

In Situ Recombination of Elements in Spent Lithium-Ion Batteries to Recover High-Value γ-LiAlO₂ and LiAl₅O₈

Huang

Qiu

Lin

et al. 2021

Environ. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

Recovering valuable materials from spent lithium-ion batteries is an important task because of the asymmetry in resource distribution, supply, and demand around the world. A lithium-ion battery is a combination system of various elements and their oxides. Current recovering technologies focus on the separation of valuable metal elements. They can inescapably bring secondary contamination and cost to the environment due to the addition of leachants and precipitants. To recover valuable materials, in situ recombination of elements in spent lithium-ion batteries can be a more economical and environment-friendly solution. Herein, we developed a technology based on in situ aluminothermic reduction and interstitial solid solution transformation to recover high-value γ-LiAlO 2 and LiAl 5 O 8 under vacuum and high-temperature (1723 K) conditions. It was found that the process of Li 2 O filling into the lattice of O−Al−O structure is an energy-reducing process, while LiAl 5 O 8 was an existing high-energy transition-state matter. Since there was no wastewater generated, the process brought a new environment-friendly method for recovering valuable metals from spent lithium-ion batteries. This study also provides new comprehension regarding the design for high-value products' recovery from multi-element mixed wastes on an atomic scale.

show abstract

Section: Resultsmentioning

confidence: 80%

Section: Resultsmentioning

confidence: 99%

In Situ Recombination of Elements in Spent Lithium-Ion Batteries to Recover High-Value γ-LiAlO₂ and LiAl₅O₈

Huang

Qiu

Lin

et al. 2021

Environ. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

show abstract

“…As shown in Figure , the waste LIBs were disassembled and crushed to obtain the uniform electrode material powder. In our previous research, , vacuum gasification and in situ deposition of waste LIBs can prepare LiAl 5 O 8 crystals, and Mn can be efficiently separated by vacuum gasification and ectopic condensation deposition in a vacuum reaction system. The decomposition reaction occurred first at 300 °C: LiMn 2 normalO 4 = Li 2 normalO + MnO …”

Section: Results and Discussionmentioning

confidence: 99%

Preparing La-Doped LiAl₅O₈ from the Electrode Materials of Waste Lithium-Ion Batteries

Qin

Qiu

et al. 2023

ACS Sustainable Chem. Eng.

Self Cite

View full text Add to dashboard Cite

For sustainable development of resources, pyrometallurgy, hydrometallurgy, and bioleaching have been widely employed in the recovery of waste lithium-ion batteries. Metallic resources have been successfully recovered by these technologies. However, high-value and comprehensive utilization technology of waste lithium-ion batteries is still in its infancy. In this paper, a combined technology of material molecular design and vacuum gasification deposition to prepare high-value optical materials (La-doped LiAl5O8) from the electrode materials of waste lithium-ion batteries is reported. The band gap of the designed La-doped LiAl5O8 was reduced by 1.077 eV compared to that of LiAl5O8. The La-d state caused a blue shift in the spectrogram so that the material can be excited by lower energy light. La-doped LiAl5O8 was successfully prepared by vacuum gasification deposition, and its strongest emission peak was at 450 nm. Photoluminescence intensity of La-doped LiAl5O8 was twice that of LiAl5O8. Chromaticity of the recovered La-doped LiAl5O8 was located at (0.17, 0.15), which indicated that La-doped LiAl5O8 was a highly efficient blue-emissive material and had great potential application in light-emitting diodes. This paper contributes to a new strategy in the value-added recovery of solid waste.

show abstract

“…Thus, it is very necessary for us to research on spent LIBs. , Spent LIBs contain a lot of metal resources, − which can bring considerable economic effects. , In addition to economic benefits, the recovery of spent LIBs has strategic significance, such as Li and Co . The recycling technology of spent LIBs is also constantly developing, , and environmentally unfriendly technologies are eliminated. , Vacuum reduction is encouraged to be used in the resource recovery of spent LIBs because it claims to be efficient , and environmentally friendly . Zhang et al researched under vacuum and at 600–1000 °C and found that LiCoO 2 is selectively converted from the anode to Co or cobalt oxide and Li 2 CO 3 by carbothermal reduction.…”

Section: Introductionmentioning

confidence: 99%

Occupational Threat of Recycling Spent Lithium-Ion Batteries by Vacuum Reduction

Lin

Ruan

2022

ACS Sustainable Chem. Eng.

Self Cite

View full text Add to dashboard Cite

The recovery of spent lithium-ion batteries is a hot issue in the field of social sustainable development. At present, vacuum reduction is encouraged to be used in the resource recovery of spent lithium-ion batteries. However, the occupational threat of their recovery process has not been studied. This paper investigated the occupational threat of recovering spent lithium-ion batteries during vacuum reduction. The PM 10 (0.065 mg/m 3 ) and heavy metals in the gas have no occupational threat, whereas the gas contains dozens of toxic pollutants, such as ethanolamine, carbon monoxide, and 1,4dioxane. Among them, the content of 1,4-dioxane reaches 5.67%, which have carcinogenic risk (ILCR = 2.28 × 10 −3 ) and noncarcinogenic risk (HQ = 155.94). Molecular dynamics results indicate that the formation of pollutants is caused by NH 2• , and so forth. Organic residues also contain pollutants, but they are easy to collect and are harmless. Therefore, it is necessary to monitor and control the pollutant gas. The occupational threat can be avoided by reducing the organic substances involved in the reaction and increasing the activated carbon to absorb the gas. This paper might be the first time to provide environmental information about the vacuum reduction process of recovering spent lithium-ion batteries.

show abstract

Recovery nano-flake (100 nm thickness) of zero-valent manganese from spent lithium-ion batteries

Cited by 14 publications

References 22 publications

In Situ Recombination of Elements in Spent Lithium-Ion Batteries to Recover High-Value γ-LiAlO₂ and LiAl₅O₈

In Situ Recombination of Elements in Spent Lithium-Ion Batteries to Recover High-Value γ-LiAlO₂ and LiAl₅O₈

Preparing La-Doped LiAl₅O₈ from the Electrode Materials of Waste Lithium-Ion Batteries

Occupational Threat of Recycling Spent Lithium-Ion Batteries by Vacuum Reduction

Contact Info

Product

Resources

About

Recovery nano-flake (100 nm thickness) of zero-valent manganese from spent lithium-ion batteries

Cited by 14 publications

References 22 publications

In Situ Recombination of Elements in Spent Lithium-Ion Batteries to Recover High-Value γ-LiAlO2 and LiAl5O8

In Situ Recombination of Elements in Spent Lithium-Ion Batteries to Recover High-Value γ-LiAlO2 and LiAl5O8

Preparing La-Doped LiAl5O8 from the Electrode Materials of Waste Lithium-Ion Batteries

Occupational Threat of Recycling Spent Lithium-Ion Batteries by Vacuum Reduction

Contact Info

Product

Resources

About

In Situ Recombination of Elements in Spent Lithium-Ion Batteries to Recover High-Value γ-LiAlO₂ and LiAl₅O₈

In Situ Recombination of Elements in Spent Lithium-Ion Batteries to Recover High-Value γ-LiAlO₂ and LiAl₅O₈

Preparing La-Doped LiAl₅O₈ from the Electrode Materials of Waste Lithium-Ion Batteries