Preparation of cobalt oxide from concentrated cathode material of spent lithium ion batteries by hydrometallurgical method

J. Kang; J. Sohn; H. Chang; G. Senanayake; S.M. Shin

doi:10.1016/j.apt.2009.10.015

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Preparation of cobalt oxide from concentrated cathode material of spent lithium ion batteries by hydrometallurgical method

Journal article

Peer reviewed

Preparation of cobalt oxide from concentrated cathode material of spent lithium ion batteries by hydrometallurgical method

J. Kang, J. Sohn, H. Chang, G. Senanayake and S.M. Shin

Advanced Powder Technology, Vol.21(2), pp.175-179

2010

DOI: https://doi.org/10.1016/j.apt.2009.10.015

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Abstract

Cobalt oxide was prepared from spent lithium ion batteries (LIBs) by reductive leaching, copper sulfide precipitation, cobalt oxalate precipitation and thermal decomposition. The cobalt rich non-magnetic -16 mesh fraction obtained from spent LIBs by mechanical separation was leached using 2 M H2SO4, 6 vol% H2O2, reaction temperature 60 °C, agitation speed 300 rpm, pulp density 100 g/L, reaction time 1 h. The leaching efficiency of cobalt was more than 99% and its concentration was 27.4 g/L. Copper was removed (99.9%) as CuS by precipitating with Na2S. The crystalline solid CoC2O4·2H2O selectively precipitated by treating the copper-free liquor with oxalic acid was calcined to produce crystalline Co3O4, of which primary average particle size was 340 nm.

Details

Title: Preparation of cobalt oxide from concentrated cathode material of spent lithium ion batteries by hydrometallurgical method
Authors/Creators: J. Kang (Author/Creator) - Korea University of Science and Technology
J. Sohn (Author/Creator) - Korea Institute of Geoscience and Mineral Resources
H. Chang (Author/Creator) - Korea Institute of Geoscience and Mineral Resources
G. Senanayake (Author/Creator) - Murdoch University
S.M. Shin (Author/Creator) - Korea Institute of Geoscience and Mineral Resources
Publication Details: Advanced Powder Technology, Vol.21(2), pp.175-179
Publisher: Elsevier BV
Identifiers: 991005544498807891
Copyright: © 2009 The Society of Powder Technology Japan.
Murdoch Affiliation: School of Chemical and Mathematical Science
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 2 Chemistry; 2.62 Electrochemistry; 2.62.138 Lithium-Ion Battery
Web Of Science research areas: Engineering, Chemical
ESI research areas: Chemistry