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

Sung Cheol Park; Yong Hwan Kim; Man Seung Lee; Seong Ho Son

doi:10.7844/kirr.2022.31.5.59

All Issue

2022 Vol.31, Issue 5 Preview Page Next Page

Research Paper

A Study on the Electrochemical Kinetics of Electrowinning Process of Valuable Metals Recovered from Lithium-ion Batteries 폐리튬이온전지로부터 유가금속 회수를 위한 전해채취 공정 전기화학 반응속도론적 연구

31 October 2022. pp. 59-66

PDF XML

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

니켈, 코발트 및 구리 전해채취의 반응율속단계 규명을 위해 회전원판전극(rotating disc electrode, RDE)를 사용하여 전해액 온도 및 교반속도에 대한 실험을 수행하였다. 유가금속 별 전해채취 공정에서의 활성화에너지를 구하여 반응율속단계를 규명한 결과 니켈은 혼합율속, 코발트는 화학반응율속, 구리는 물질전달율속으로 판단되었다. 니켈, 코발트 및 구리의 전해액 온도 및 교반속도 변화에 따른 전해채취 공정을 수행하여 전류효율을 비교한 결과 반응율속단계 결과와 일치하였다.

키워드

반응율속단계

전해채취

유가금속

폐리튬이온전지

재활용

References

Yanghwa Kim, Jaewan Lim, Gyuyeol Park, et al., 2019 : Electric Vehicle Market and Battery Related Technology Research Trends, Transactions of the Korean Hydrogen and New Energy Society, 30(4), pp.362-368.

Martin, Rentsch and Gunther, 2017 : Lithium market research-global supply, future demand and price development, Energy Storage Materials, 6, pp.171-179. 10.1016/j.ensm.2016.11.004

Xin Sun, Zongwei Liu, Fuquan Zhao, et al., 2021 : Global Competition in the Lithium-Ion Battery Supply Chain: A Novel Perspective for Criticality Analysis, Environmental Science & Technology, 55, 12180-12190. 10.1021/acs.est.1c0337634499490

Eunmi Park, Chulwoong Han, Seong Ho Son, et al., 2022 : Overview on Pyrometallurgical Recycling Process of Spent Lithium-ion Battery, Resources Recycling, 31(3), pp.27-39. 10.7844/kirr.2022.31.3.27

Koungkeun Yoo, Hong-in Kim and Jeong-Soo Sohn, 2019 : Optimum Conditions of Dismantlement for Recovery of Valuables from Spent Lithium Primary Batteries, Resources Recycling, 28(4), pp.51-58.

Soyeong Joo, Yubin Kang, Hyun-Woo Shim, et al., 2019 : Study on Preparation of High Purity Lithium Hydroxide Powder with 2-step Precipitation Process Using Lithium Carbonate Recovered from Waste LIB Battery, Resources Recycling, 28(5), pp.60-67.

Yonglin Yao, Meiying Zhu, Zhuo Zhao, et al., 2018 : Hydrometallurgical Processes for Recycling Spent Lithium-Ion Batteries: A Critical Review, ACS Sustainable Chemistry & Engineering, 6, 13611-13627. 10.1021/acssuschemeng.8b03545

Korea Institute of Geoscience and Mineral Resources, 2019/2020 Mineral Commodity Supply and Demand, p. 133.

V. G. Levich, 1962 : Physicochemical Hydrodynamics. Prentice-Hall, Englewood Cliffs, NJ.

Information

Publisher :The Korean Institute of Resources Recycling
Publisher(Ko) :한국자원리싸이클링학회
Journal Title :Resources Recycling
Journal Title(Ko) :자원리싸이클링
Volume : 31
No :5
Pages :59-66
Received Date : 2022-09-29
Revised Date : 2022-10-11
Accepted Date : 2022-10-13
DOI :https://doi.org/10.7844/kirr.2022.31.5.59

Resources Recycling ISSN:2765-3439(Print) 2765-3447(Online) 자원리싸이클링

All Issue