2019-Sustainable Industrial Processing Summit
SIPS2019 Volume 12: Energy Production and Secondary Batterie
| Editors: | F. Kongoli, H. Dodds, M. Mauntz, T. Turna, K. Aifantis, A. Fox, V. Kumar |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2019 |
| Pages: | 112 pages |
| ISBN: | 978-1-989820-11-7 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Recycling of discarded lithium ion batteries for recovery of cobalt and managnaese values
Nikhil Dhawan1;1IIT-ROORKEE, roorkee, India;
Type of Paper: Regular
Id Paper: 426
Topic: 14
Abstract:
Lithium-ion batteries have a limited lifespan, ever-growing demand and adequate presence of critical metals such as lithium and cobalt make their recycling inevitable. In this study, discarded mixed mobile batteries were discharged, dismantled, and separated into cathode and anode sheets, followed by attritor crushing. The cathode material comprises LiCoO2 and LiMn2O4, while graphite is present in the anode material. The cathode material was indigenously reduced with purified graphite at different times and dosages. A statistical design is employed for optimization of reduction parameters and obtained magnetic fraction contains cobalt and manganese oxide whereas graphite and lithium carbonate were found in nonmagnetic fraction and dried solution. The composition, saturation magnetization and product phases obtained at optimum conditions (900 °C, 7.5 % graphite, 45 min and 800 °C, 7.5 % graphite, 45 min) are Co: ~80-84 %, Mn: 6~10 %, saturation magnetization:105-114 emu/g with Co, CoO and MnO phases, respectively.
Keywords:
Cathodes; Challenges; Graphite; Li-Ion; Lithium; Recycling; Sustainability;References:
Vishvakarma, S., Dhawan, N., 2019, Recovery of Cobalt and Lithium Values from Discarded Li-Ion Batteries, Journal of Sustainable Metallurgy, 5(2), pp. 204-209.Kumar, R.S., Dhawan, N., 2019, Thermal processing of spent Li‑ion batteries for extraction of lithium and cobalt-manganese values, Accepted Transactions of the Indian Institute of Metals. DOI: 10.1007/s12666-019-01769-y