TY - JOUR
T1 - Amino Acid Leaching of Critical Metals from Spent Lithium-Ion Batteries Followed by Selective Recovery of Cobalt Using Aqueous Biphasic System
AU - Cai, Chunqing
AU - Fajar, Adroit T.N.
AU - Hanada, Takafumi
AU - Wakabayashi, Rie
AU - Goto, Masahiro
N1 - Funding Information:
The authors appreciate financial aid provided by the Environment Research and Technology Development Fund (Grant No. 3-2004) from the Ministry of the Environment of Japan. C.C. was supported by the China Scholarship Council (CSC). The authors are grateful for instrument testing support from the Center of Advanced Instrumental Analysis, Kyushu University. They thank Ian McNaught, Ph.D., from Edanz ( https://jp.edanz.com/ac ) for editing a draft of this manuscript.
Publisher Copyright:
© 2023 The Authors. Published by American Chemical Society.
PY - 2022
Y1 - 2022
N2 - To reduce the exploitation of mine resources and decrease the harm to the environment caused by urban electronic wastes, the recovery of critical metals in secondary resources is crucial. In this study, we have successfully developed an eco-friendly process to integrate the leaching and separation of cobalt (Co) from a spent lithium-ion battery (LIB) cathode using an amino acid-based aqueous biphasic system (ABS). We, for the first time, demonstrated a simple method for leaching a LIB cathode using only amino acids. In addition, we have investigated the leaching mechanism using the typical cathode active material lithium cobalt oxide (LiCoO2). Then, the Co was selectively extracted by a biphasic system (amino acid-PPG400-H2O). This novel process has an excellent prospect in the field of spent-battery recycling because of its eco-friendly and process-simplified advantages.
AB - To reduce the exploitation of mine resources and decrease the harm to the environment caused by urban electronic wastes, the recovery of critical metals in secondary resources is crucial. In this study, we have successfully developed an eco-friendly process to integrate the leaching and separation of cobalt (Co) from a spent lithium-ion battery (LIB) cathode using an amino acid-based aqueous biphasic system (ABS). We, for the first time, demonstrated a simple method for leaching a LIB cathode using only amino acids. In addition, we have investigated the leaching mechanism using the typical cathode active material lithium cobalt oxide (LiCoO2). Then, the Co was selectively extracted by a biphasic system (amino acid-PPG400-H2O). This novel process has an excellent prospect in the field of spent-battery recycling because of its eco-friendly and process-simplified advantages.
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U2 - 10.1021/acsomega.2c06654
DO - 10.1021/acsomega.2c06654
M3 - Article
AN - SCOPUS:85146177283
SN - 2470-1343
JO - ACS Omega
JF - ACS Omega
ER -
