A Nature research paper demonstrates a solid-state electrochemical scheme that shows promise for upcycling aluminium scrap metal
We are providing an unedited version of this manuscript to give early access to its findings. Before final publication, the manuscript will undergo further editing. Please note there may be errors present which affect the content, and all legal disclaimers apply.The recycling of aluminium scrap today utilizing a remelting technique downgrades the quality of the aluminium and the final sink of this down-graded recycled aluminium is aluminium casting alloys.
To meet the demand for high-grade aluminium in the future, a new aluminium recycling method capable of upgrading scrap to a level similar to that of primary aluminium is required. Here we propose a solid-state electrolysis process using molten salts for upcycling aluminium scrap. The SSE produces aluminium with a purity comparable to that of primary aluminium from aluminium casting alloys.
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