Process for the direct recycling of electrode materials from scrap resulting from the production of lithium-ion batteries
AssigneeHosokawa Alpine Aktiengesellschaft
InventorsChristian EISENBARTH, Andreas FÖRSTER
Life of this patent
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Abstract
In a process for the direct recycling of electrode scrap which is yielded as production waste in the production of lithium-ion batteries, a process is to be provided which makes it possible to recycle electrode scrap from LIB production by mechanical stress without adversely changing the active materials so that it can be fed back into production. This is achieved in that the mechanical stressing of the electrode scrap includes pre-crushing the electrode scrap into bulk material and mechanical stressing of the pre-crushed electrode scrap in a conditioned atmosphere in a fluidised bed opposed jet mill.
Claims14
A method for direct recycling of electrode scrap resulting from production of lithium-ion batteries, the method comprising:
- provisioning of the electrode scrap comprising electrode foil, electrode coating material and binder,
- mechanical stressing of the electrode scrap,
- removing the stressed material resulting from the mechanical stress as:
- comminuted, stripped electrode foils,
- separated electrode coating material,
- wherein the mechanical stressing of the electrode scrap includes pre-crushing of the electrode scrap to bulk material, and
- wherein the mechanical stressing of the pre-crushed electrode scraps takes place in a conditioned atmosphere in a fluidised bed opposed jet mill.
Dependencies are inferred from the claim text.