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Chlorinated polyvinyl chloride (CPVC) assisted leaching of lithium and cobalt from spent lithium-ion battery in subcritical water by Theoneste Nshizirungu; Ashutosh Agarwal; Young Tae Jo; Masud Rana; Dong Shin; Jeong-Hun Park is a Environmental Science article available to read on EtoBox.

What is Chlorinated polyvinyl chloride (CPVC) assisted leaching of lithium and cobalt from spent lithium-ion battery in subcritical water about?

The objective of this study was to determine leaching efficiency of Li and Co from spent lithium-ion batteries (LIBs) by using waste chlorinated polyvinyl chloride (CPVC) in hydrothermal subcritical water process. Waste CPVC was used as the source of HCl to speed up leaching efficiency. Effects of temperature, time, LiCoO: CPVC mass ratio and liquid-solid ratio on leaching efficiencies of Li and Co were investigated. Solid residues were characterized by XRD and SEM-EDS elemental mapping to predict chemical compounds remained after leaching. Results showed that more than 98.71 % of Li and 97.69 % of Co were effectively leached from LiCoO powder under the following conditions: temperature of 250 °C, reaction time of 60 min, and LiCoO: CPVC mass ratio of 1:3. Results of this study suggest that recovery of Li and Co from spent LIBs using hydrothermal subcritical water is an efficient, environmental friendly and sustainable technology.

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Author

Theoneste Nshizirungu; Ashutosh Agarwal; Young Tae Jo; Masud Rana; Dong Shin; Jeong-Hun Park

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0304-3894)

Published

2020

Language

EN

Field

Environmental Science (Physical Sciences)