American Manganese has reported the successful recycling of lithium-ion battery black mass into NMC-622 (nickel-manganese-cobalt oxide) cathode precursor.
The black mass feedstock was produced by mechanical size reduction from end-of-life lithium-ion batteries, using the Canada-based firm’s RecycLiCo closed-loop process.
The resulting powder substance contains battery materials, including: lithium, cobalt, nickel, and manganese, as well as copper, aluminium, and graphite.
American Manganese (AMY) sourced the samples of black mass from an unnamed electric vehicle manufacturer for demonstration of its process and validation of its product.
Laboratory-scale testing of the black mass samples demonstrated a 99% leach extraction efficiency of lithium, nickel, manganese, and cobalt.
The resulting pregnant leach solution was then adjusted to the desired ratio of nickel, manganese, and cobalt before the direct co-precipitation of the NMC-622 cathode precursor.
AMY said that Scanning Electron Microscopy (SEM) scans showed its NMC-622 product shares the same technical specifications –particle morphology, size, and distribution – found in conventional lithium-ion battery cathode precursor materials produced from raw materials.
Government funding
This month AMY received advisory services and funding to support a pilot lithium-ion recycling project from the National Research Council of Canada (NRC) Industrial Research Assistance Program.
The funding, delivered through NRC’s Fast Pilot...
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