Hydro(organic)metallurgy for spent lithium-ion battery recycling

Due to the rising inclusivity of electronic devices in one’s daily life, the demand for lithium-ion batteries has been steadily increasing over the years. Thus, the amount of e-waste including lithium-ion batteries follows a similar trend. However, the current recycling processes of spent lithium-io...

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Main Author: Tan, Christopher Zhi Yong
Other Authors: Dalton Tay Chor Yong
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2023
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Online Access:https://hdl.handle.net/10356/166628
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1666282023-05-13T16:46:07Z Hydro(organic)metallurgy for spent lithium-ion battery recycling Tan, Christopher Zhi Yong Dalton Tay Chor Yong School of Materials Science and Engineering cytay@ntu.edu.sg Engineering::Environmental engineering::Waste management Engineering::Mechanical engineering::Alternative, renewable energy sources Due to the rising inclusivity of electronic devices in one’s daily life, the demand for lithium-ion batteries has been steadily increasing over the years. Thus, the amount of e-waste including lithium-ion batteries follows a similar trend. However, the current recycling processes of spent lithium-ion batteries are not yet truly sustainable as they are either energy and cost intensive, require the use of strong reagents, or produce toxic gases to achieve higher throughput and efficiency. On the other hand, the amount of fruit and vegetable waste has also been on the rise due to the rising population. In a previous study, dried pulverized orange peels were used to leach precious metals from spent lithium-ion battery black mass. Orange peels (OP) act as a source of organic acid and a green reductant as the cellulose can be converted into reducing sugars to aid in the leaching process. This renders the use of harsh reducing agents such as H2O2 redundant, while reducing both electronic and food waste streams concurrently. This project aims to build on the previous study by optimizing the parameters of this novel hydro(organic)metallurgical recycling pathway for lithium-ion batteries. The parameters of fermentation of lactic acid bacteria (LAB) on OP substrate was studied, along with the leaching parameters using the ferment obtained, and finally the parameters of cobalt precipitation using oxalic acid from the leachate obtained. From the project, the parameters for fermentation, amount of concentrated HCl added for leaching, and the parameters for cobalt oxalate precipitation were successfully optimized. Bachelor of Engineering (Materials Engineering) 2023-05-08T08:55:48Z 2023-05-08T08:55:48Z 2023 Final Year Project (FYP) Tan, C. Z. Y. (2023). Hydro(organic)metallurgy for spent lithium-ion battery recycling. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/166628 https://hdl.handle.net/10356/166628 en application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Environmental engineering::Waste management
Engineering::Mechanical engineering::Alternative, renewable energy sources
spellingShingle Engineering::Environmental engineering::Waste management
Engineering::Mechanical engineering::Alternative, renewable energy sources
Tan, Christopher Zhi Yong
Hydro(organic)metallurgy for spent lithium-ion battery recycling
description Due to the rising inclusivity of electronic devices in one’s daily life, the demand for lithium-ion batteries has been steadily increasing over the years. Thus, the amount of e-waste including lithium-ion batteries follows a similar trend. However, the current recycling processes of spent lithium-ion batteries are not yet truly sustainable as they are either energy and cost intensive, require the use of strong reagents, or produce toxic gases to achieve higher throughput and efficiency. On the other hand, the amount of fruit and vegetable waste has also been on the rise due to the rising population. In a previous study, dried pulverized orange peels were used to leach precious metals from spent lithium-ion battery black mass. Orange peels (OP) act as a source of organic acid and a green reductant as the cellulose can be converted into reducing sugars to aid in the leaching process. This renders the use of harsh reducing agents such as H2O2 redundant, while reducing both electronic and food waste streams concurrently. This project aims to build on the previous study by optimizing the parameters of this novel hydro(organic)metallurgical recycling pathway for lithium-ion batteries. The parameters of fermentation of lactic acid bacteria (LAB) on OP substrate was studied, along with the leaching parameters using the ferment obtained, and finally the parameters of cobalt precipitation using oxalic acid from the leachate obtained. From the project, the parameters for fermentation, amount of concentrated HCl added for leaching, and the parameters for cobalt oxalate precipitation were successfully optimized.
author2 Dalton Tay Chor Yong
author_facet Dalton Tay Chor Yong
Tan, Christopher Zhi Yong
format Final Year Project
author Tan, Christopher Zhi Yong
author_sort Tan, Christopher Zhi Yong
title Hydro(organic)metallurgy for spent lithium-ion battery recycling
title_short Hydro(organic)metallurgy for spent lithium-ion battery recycling
title_full Hydro(organic)metallurgy for spent lithium-ion battery recycling
title_fullStr Hydro(organic)metallurgy for spent lithium-ion battery recycling
title_full_unstemmed Hydro(organic)metallurgy for spent lithium-ion battery recycling
title_sort hydro(organic)metallurgy for spent lithium-ion battery recycling
publisher Nanyang Technological University
publishDate 2023
url https://hdl.handle.net/10356/166628
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