Featured Battery recycling approach

Source: Myth busting: Battery recycling does work - electrive.com

“We work with mechanics instead of temperature and crush the entire module in an inert atmosphere,” explains Christian Hanisch of Duesenfeld. The shredder contains nitrogen gas, which prevents further chemical reactions. The pressure is then significantly reduced, which first evaporates the liquid electrolyte and then recovers it through condensation. In addition to the grinding shredder, the electrolyte flows into a container.

The remains of the battery module and the cells are now dried and uncritical. Duesenfeld then separates the remaining mixture by proven processes such as magnets or air. The chips of the separator foil, the ferrous metals, the non-ferrous metals such as alloy and powder from lithium as well as cathode residues with nickel, manganese and cobalt remain. According to Christian Hanisch of Duesenfeld, this black powder could soon be processed “by a hydrometallurgical process into lithium carbonate and sulfates of nickel, manganese and cobalt”. This way, most of the original battery could be retained for further use. Duesenfeld will not tell who from the automotive industry has asked the company to have ten tons of batteries dismantled as a test and to have the evaluation presented to them later. However, they let through that we are talking about international and big names.​

Bob Wilson