Shang-Cyuan Chen , Feng-Chih Chou , Shivani Shirke , Shou-Yuan Lin , Yuan-Chung Lin
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引用次数: 0
Abstract
Background
Recycling spent lithium-ion batteries (LIBs) is an urgent issue due to their rapid growth and environmental impact. Lithium cobalt oxide (LiCoO2, LCO) is a valuable cathode material, making cobalt a critical raw material with many applications.
Methods
In our study, we introduce a new approach using a deep-eutectic solvent (DES) made of choline chloride-succinic acid as a solution for extracting cobalt from LIBs. Our method, based on a complete factorial experimental design, explores various parameters affecting cobalt extraction efficiency from spent LIBs. The extraction experiments were carried out using both an oil bath and a microwave-assisted heating system.
Significant Findings
The Co(OH)2 can be isolated from the extracted solution using the electrodeposition method, with an electrolyzing efficiency of 84 %-93 % (SA-OA) and a purity of 97.5 %. This study presents a comparison of the performance of succinic acid and oxalic acid as sustainable alternatives to conventional methods to recover spent LIBs more effectively.
期刊介绍:
Journal of the Taiwan Institute of Chemical Engineers (formerly known as Journal of the Chinese Institute of Chemical Engineers) publishes original works, from fundamental principles to practical applications, in the broad field of chemical engineering with special focus on three aspects: Chemical and Biomolecular Science and Technology, Energy and Environmental Science and Technology, and Materials Science and Technology. Authors should choose for their manuscript an appropriate aspect section and a few related classifications when submitting to the journal online.