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http://dx.doi.org/10.7844/kirr.2022.31.5.59

A Study on the Electrochemical Kinetics of Electrowinning Process of Valuable Metals Recovered from Lithium-ion Batteries  

Park, Sung Cheol (Korea Institute of Industrial Technology)
Kim, Yong Hwan (Korea Institute of Industrial Technology)
Lee, Man Seung (Department of Advanced Materials Science and Engineering, Institute of Rare Metal, Mokpo National University)
Son, Seong Ho (Korea Institute of Industrial Technology)
Publication Information
Resources Recycling / v.31, no.5, 2022 , pp. 59-66 More about this Journal
Abstract
To investigate the rate-determining step of nickel, cobalt and copper electrowinning, experiments were conducted by varying the electrolyte temperature and agitation speed using a rotating disc electrode. Analyzing the rate-determining step by calculating the activation energy in the electrowinning process, it was found that nickel electrowinning is controlled by a mixed mechanism (partly by chemical reaction and partly by mass transport), cobalt is controlled by chemical reaction, and copper is controlled by mass transfer. Electrowinning of nickel, cobalt and copper was performed by varying the electrolyte temperature and agitation speed, and the comparison of the current efficiencies was used the determine the rate-determining step.
Keywords
Rate-determining step; Electrowinning; Valuable metals; Waste Lithium-ion battery; Recycling;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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