| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Ni-Co 2021: The 5th International Symposium on Nickel and Cobalt
|
| Presentation Title |
The Effect of Cu, Al and Fe Impurities on Leaching Efficiency of Two Lithium-ion Battery Waste Fractions |
| Author(s) |
Alexander Chernyaev, Jere Partinen, Mari Lundström |
| On-Site Speaker (Planned) |
Jere Partinen |
| Abstract Scope |
It has been established that high extraction for Co in LIB waste leaching is achieved with an addition of reducing agents, such as H2O2. However, battery current collectors (Al and Cu) can also act as reducing agents. The target of this work was to investigate varying amounts of the current collectors in <1250 μm and <500 μm fractions and their effect on the extraction of Co, Mn and Ni in leaching (T = 70°C, [H2SO4] = 2M, and 200 g/L). It was found that >90% of Co and Mn and all of Ni was extracted from <1250μm fraction in the absence of external reductants, whereas with <500 μm fraction, the extraction was 14 – 30 %-units lower. The results suggest that skillful optimization of LIB waste fractions as input to hydrometallurgical battery recycling can support in the minimization of the reduction chemicals. |
| Proceedings Inclusion? |
Planned: |