3188 XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3
Table 2. Composition of the black mass after the pyrolysis treatment at different temperature
Temperature Cathode, wt. %Graphite, wt. %PVDF, wt. %PVDF/Cathode
w/o 66.50% 30.76% 2.74% 8.91%
250 °C 68.13% 29.75% 2.12% 7.13%
300 °C 69.02% 29.30% 1.68% 5.73%
350 °C 69.41% 29.84% 0.75% 2.51%
400 °C 69.35% 30.41% 0.24% 0.79%
Figure 4. Particle size distribution (PSD) of the recycled cathode and anode materials from spent Li-ion batteries after a
pyrolysis treatment
Figure 5. A flow diagram of a rougher/cleaner/scavenger process circuit that was deployed to separate the black mass after a
pyrolysis treatment from Li-ion batteries
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