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KMID : 1059520190630060440
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Journal of the Korean Chemical Society
2019 Volume.63 No. 6 p.440 ~ p.445
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Safe Decomposition of the Vehicle Waste Battery Module and Development of Separation Process of Cathode Active Material from Aluminum Thin Film
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Kim Youn-Jung
Oh In-Gyung
Hong Yong-Pyo
Ryoo Keon-Sang
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Abstract
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It has developed a method that can recover efficiently the reproducible resources from the vehicle waste lithium second battery module. Module cell consists of copper thin film, aluminum thin film and diaphragm made with polymer between these thin films. Cell was disassembled completely without any damage in glove box and through several steps. Preferentially, cathode active material was separated from aluminum thin film at heat treatment of 400 oC. The retrieved cathode active material was then obtained as high purity after calcining at 800 oC to remove residual carbon. Based on this study, it was found that rare metals such as Co, Ni, Mn and Li made up of cathode active material could recover above 80% from aluminum thin film.
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KEYWORD
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Vehicle waste lithium second battery module, Cathode active material, Module cell, Aluminum thin film, Rare metal
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