Researchers have made significant progress in understanding the interaction of NMC with LFP (synthetic materials) for potential battery waste management. The study focused on the leaching of LFP in sulfuric acid solutions, which demonstrated high dissolution rates. The addition of H2O2 did not improve dissolution but led to the oxidation of Fe2+ to Fe3+, indicating the potential for synergistic leaching.
When synthetic LFP was leached with NMC111, increased LFP addition led to higher extraction of target metals, including Ni, Co, Mn, and Li. The addition of LFP was found to enhance the leaching of NMC linearly within the studied range, showing promising results for future battery waste management.
In industrial black mass characterization, the composition of the material was analyzed, revealing varying content of metals such as Ni, Mn, Co, Al, and Cu. The study also found that the morphology of the industrial black mass was highly heterogeneous compared to typical NMC materials.
The reductive leaching of industrial black mass with LFP addition showed increased extraction of target metals with higher LFP additions. The timing of LFP addition and the impact of acidity on leaching performance were also investigated, showing that higher acidity and early addition of LFP led to improved extraction efficiency.
Overall, the study sheds light on the potential for synergistic leaching of NMC with LFP to enhance metal extraction from battery waste, providing valuable insights for future waste management strategies in the battery industry.
