Recover lithium and prepare nano-cobalt from spent lithium ion batteries using a one-pot mechanochemical reaction
Recovery valuable metals such as lithium and cobalt from spent lithium ion batteries presents great economic significance as well as environmental benefits. The present work explores a mechanochemical reaction of the most widely used cathode materials, LiCoO2, into easily separable lithium and nano-...
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2021-12-01
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doaj-6f7456d39c0d4dc59f7fdccb5414f8342021-09-29T04:27:19ZengElsevierCleaner Engineering and Technology2666-79082021-12-015100282Recover lithium and prepare nano-cobalt from spent lithium ion batteries using a one-pot mechanochemical reactionBang Li0Jia Li1Zhenming Xu2School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People's Republic of ChinaChina-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai, 201306, People's Republic of China; School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People's Republic of China; Corresponding author. China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai, 201306, People's Republic of ChinaSchool of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People's Republic of ChinaRecovery valuable metals such as lithium and cobalt from spent lithium ion batteries presents great economic significance as well as environmental benefits. The present work explores a mechanochemical reaction of the most widely used cathode materials, LiCoO2, into easily separable lithium and nano-sized cobalt species by grinding LiCoO2 with NaBH4. The optimum lithium leaching rate of nearly 100% can be achieved from the sample milled at NaBH4 to LiCoO2 mass ratio at 2.5:10 (g/g), milling time for 90 min when Ball-to-powder mass ratio is fixed at 65:1 (g/g), and rotary speed of the planetary ball mill fixed at 400 rpm. The crystal information suggests the grain refinement and chemical transformation of LiCoO2. CoO or metallic Co is produced when different NaBH4 dosage is applied. Whereas lithium is released as soluble LiOH. The results also prove the role of NaBH4 dosage in determine the reaction path. Microscopic observation confirms the grain refinement during the milling process. Nano-sized cobalt species are also observed. This solid phase mechanochemical reaction provides an effective and short route from waste to potentially high-value added material.http://www.sciencedirect.com/science/article/pii/S2666790821002421Spent LIBs cathodeMechanochemical reactionSelective extractionNano-sized cobalt |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Bang Li Jia Li Zhenming Xu |
spellingShingle |
Bang Li Jia Li Zhenming Xu Recover lithium and prepare nano-cobalt from spent lithium ion batteries using a one-pot mechanochemical reaction Cleaner Engineering and Technology Spent LIBs cathode Mechanochemical reaction Selective extraction Nano-sized cobalt |
author_facet |
Bang Li Jia Li Zhenming Xu |
author_sort |
Bang Li |
title |
Recover lithium and prepare nano-cobalt from spent lithium ion batteries using a one-pot mechanochemical reaction |
title_short |
Recover lithium and prepare nano-cobalt from spent lithium ion batteries using a one-pot mechanochemical reaction |
title_full |
Recover lithium and prepare nano-cobalt from spent lithium ion batteries using a one-pot mechanochemical reaction |
title_fullStr |
Recover lithium and prepare nano-cobalt from spent lithium ion batteries using a one-pot mechanochemical reaction |
title_full_unstemmed |
Recover lithium and prepare nano-cobalt from spent lithium ion batteries using a one-pot mechanochemical reaction |
title_sort |
recover lithium and prepare nano-cobalt from spent lithium ion batteries using a one-pot mechanochemical reaction |
publisher |
Elsevier |
series |
Cleaner Engineering and Technology |
issn |
2666-7908 |
publishDate |
2021-12-01 |
description |
Recovery valuable metals such as lithium and cobalt from spent lithium ion batteries presents great economic significance as well as environmental benefits. The present work explores a mechanochemical reaction of the most widely used cathode materials, LiCoO2, into easily separable lithium and nano-sized cobalt species by grinding LiCoO2 with NaBH4. The optimum lithium leaching rate of nearly 100% can be achieved from the sample milled at NaBH4 to LiCoO2 mass ratio at 2.5:10 (g/g), milling time for 90 min when Ball-to-powder mass ratio is fixed at 65:1 (g/g), and rotary speed of the planetary ball mill fixed at 400 rpm. The crystal information suggests the grain refinement and chemical transformation of LiCoO2. CoO or metallic Co is produced when different NaBH4 dosage is applied. Whereas lithium is released as soluble LiOH. The results also prove the role of NaBH4 dosage in determine the reaction path. Microscopic observation confirms the grain refinement during the milling process. Nano-sized cobalt species are also observed. This solid phase mechanochemical reaction provides an effective and short route from waste to potentially high-value added material. |
topic |
Spent LIBs cathode Mechanochemical reaction Selective extraction Nano-sized cobalt |
url |
http://www.sciencedirect.com/science/article/pii/S2666790821002421 |
work_keys_str_mv |
AT bangli recoverlithiumandpreparenanocobaltfromspentlithiumionbatteriesusingaonepotmechanochemicalreaction AT jiali recoverlithiumandpreparenanocobaltfromspentlithiumionbatteriesusingaonepotmechanochemicalreaction AT zhenmingxu recoverlithiumandpreparenanocobaltfromspentlithiumionbatteriesusingaonepotmechanochemicalreaction |
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