Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/55624

Synergetic interactions improve cobalt leaching from lithium cobalt oxide in microbial fuel cells

Authors Huang, Liping
Li, Tianchi
Liu, Chuan
Quan, Xie
Chen, Lijie
Wang, Aijie
Chen, Guohua View this author's profile
Issue Date 2013
Source Bioresource Technology , v. 128, 2013, p. 539-546
Summary Cobalt leaching from lithium cobalt oxide is a promising reduction process for recovery of cobalt and recycle of spent lithium ion batteries, but suffers from consumption of large amount of reductants and energy, and generation of excess secondary polluted sludge. Thus, effective and environmental friendly processes are needed to improve the existing process limitations. Here we reported microbial fuel cells (MFCs) to effectively reduce Co(III) in lithium cobalt oxide with concomitant energy generation. There was a synergetic interaction in MFCs, leading to a more rapid Co(III) leaching at a rate 3.4 times the sum of rates by conventional chemical processes and no-acid controls. External resistor, solid/liquid ratio, solution conductivity, pH and temperature affected system performance. This study provides a new process for recovery of cobalt and recycle of spent lithium ion batteries with concomitant energy generation from MFCs. (C) 2012 Elsevier Ltd. All rights reserved.
Subjects
ISSN 0960-8524
Language English
Format Article
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