Recovering Lithium from the Cathode Active Material in Lithium-Ion Batteries via Thermal Decomposition
In this study, calcination tests were performed on a mixed sample of lithium cobalt oxide and activated carbon at 300−1000 C under an argon atmosphere. The tests were conducted to discover an effective method for recovering lithium and cobalt from the cathode active material used in lithiu...
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MDPI AG
2020-03-01
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author | Shunsuke Kuzuhara Mina Ota Fuka Tsugita Ryo Kasuya |
author_facet | Shunsuke Kuzuhara Mina Ota Fuka Tsugita Ryo Kasuya |
author_sort | Shunsuke Kuzuhara |
collection | DOAJ |
description | In this study, calcination tests were performed on a mixed sample of lithium cobalt oxide and activated carbon at 300−1000 C under an argon atmosphere. The tests were conducted to discover an effective method for recovering lithium and cobalt from the cathode active material used in lithium-ion batteries. Additionally, the effect of soluble fluorine on the purification of lithium carbonate was investigated by the addition of lithium fluoride to an aqueous lithium hydroxide solution and a CO<sub>2</sub> flow test was performed. The lithium recovery was ≥90% when the calcination occurred at temperatures of 500−600 C. However, the percent recovery decreased at temperatures ≥700 C. It was demonstrated that in order to increase the recovery while maintaining 99% purity of lithium carbonate in the recovered material, it was imperative to increase the temperature of the solution and to limit the F/Li ratio (mass%/mass%) in the solution to a value that did not exceed 0.05. |
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spelling | doaj.art-7c905efd5509494c83fa025a8fa7bca52022-12-21T18:18:52ZengMDPI AGMetals2075-47012020-03-0110443310.3390/met10040433met10040433Recovering Lithium from the Cathode Active Material in Lithium-Ion Batteries via Thermal DecompositionShunsuke Kuzuhara0Mina Ota1Fuka Tsugita2Ryo Kasuya3National Institute of Technology, Sendai College, 48 Nodayama, Medeshima-Shiote, Natori, Miyagi 981–1239, JapanNational Institute of Technology, Sendai College, 48 Nodayama, Medeshima-Shiote, Natori, Miyagi 981–1239, JapanNational Institute of Technology, Sendai College, 48 Nodayama, Medeshima-Shiote, Natori, Miyagi 981–1239, JapanNational Institute of Advanced Industrial Science and Technology, Shimo-Shidami, Moriyama-ku, Nagoya, Aichi 463-8560, JapanIn this study, calcination tests were performed on a mixed sample of lithium cobalt oxide and activated carbon at 300−1000 C under an argon atmosphere. The tests were conducted to discover an effective method for recovering lithium and cobalt from the cathode active material used in lithium-ion batteries. Additionally, the effect of soluble fluorine on the purification of lithium carbonate was investigated by the addition of lithium fluoride to an aqueous lithium hydroxide solution and a CO<sub>2</sub> flow test was performed. The lithium recovery was ≥90% when the calcination occurred at temperatures of 500−600 C. However, the percent recovery decreased at temperatures ≥700 C. It was demonstrated that in order to increase the recovery while maintaining 99% purity of lithium carbonate in the recovered material, it was imperative to increase the temperature of the solution and to limit the F/Li ratio (mass%/mass%) in the solution to a value that did not exceed 0.05.https://www.mdpi.com/2075-4701/10/4/433recoverycarbonationlithium carbonatelithium ion battery |
spellingShingle | Shunsuke Kuzuhara Mina Ota Fuka Tsugita Ryo Kasuya Recovering Lithium from the Cathode Active Material in Lithium-Ion Batteries via Thermal Decomposition Metals recovery carbonation lithium carbonate lithium ion battery |
title | Recovering Lithium from the Cathode Active Material in Lithium-Ion Batteries via Thermal Decomposition |
title_full | Recovering Lithium from the Cathode Active Material in Lithium-Ion Batteries via Thermal Decomposition |
title_fullStr | Recovering Lithium from the Cathode Active Material in Lithium-Ion Batteries via Thermal Decomposition |
title_full_unstemmed | Recovering Lithium from the Cathode Active Material in Lithium-Ion Batteries via Thermal Decomposition |
title_short | Recovering Lithium from the Cathode Active Material in Lithium-Ion Batteries via Thermal Decomposition |
title_sort | recovering lithium from the cathode active material in lithium ion batteries via thermal decomposition |
topic | recovery carbonation lithium carbonate lithium ion battery |
url | https://www.mdpi.com/2075-4701/10/4/433 |
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