| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
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| Symposium
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Innovative Hydrometallurgical Technologies for Environmentally Benign Processing and Remediation: An EPD Symposium Honoring Fiona Doyle
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| Presentation Title |
Total recycling of valuable constituents in black mass of spent lithium-ion batteries (LIBs) via environmentally friendly methods |
| Author(s) |
Kurniawan Kurniawan, Sookyung Kim, Mooki Bae , Hyunju Lee, Jae-chun Lee |
| On-Site Speaker (Planned) |
Jae-chun Lee |
| Abstract Scope |
Black mass of spent lithium-ion batteries (LIBs) includes both metals (as oxides) and graphite, which are considered as critical materials. This study proposes a concept for achieving total recovery of all the critical materials (metals and graphite) by environmentally friendly processes, involving leaching utilizing an eco-friendly organic acid, the methanesulfonic acid (MSA) and pyrolysis. Optimization of leaching was conducted while investigating the effect of stirring speed, MSA concentration, H2O2, temperature and pulp density, with the aim of quantitative leaching of the metals. Leaching residue consisting of graphite and remaining impurities, was subjected to pyrolysis. Pyrolysis was carried out under N2 atmosphere while investigating the effect of temperature and holding time. The pyrolyzed residue was analyzed using a variety of analytical techniques (XRD, SEM, FTIR) and compared with the commercial graphite. The research is being performed to recover metals from leach solutions and also that of the acid. |
| Proceedings Inclusion? |
Planned: |