Duesenfeld Gmbh

Lion Engineering Gmbh

Technische Universitat Braunschweig Carolo-wilhelmina

Wolfgang Haselrieder

Christian Hanisch

Bastian Westphal

Arno Kwade

Martin Schoenitz

A method is described for the treatment of used batteries, in particular lithium batteries, containing the steps: comminuting the batteries such that comminuted material is obtained, inactivating the comminuted material such that inactivated comminuted material is obtained, and filling a transport container with the inactivated comminuted material. The inactivation is performed by drying the comminuted material, and the comminuted material is dried until an electrolyte content is so low that an electrochemical reaction is not possible.

Method for the treatment of used batteries, in particular rechargeable batteries, and battery processing installation

A method for retrieving active material from a galvanic cell is provided. The galvanic cell includes an active material, a support for the active material and a binder for bonding the active material and the support. The method includes the following steps: (a) crushing the cells, in particular under inert gas or in a vacuum, so that solid cell fragments are also formed, (b) heating the solid cell fragments up to the decomposition temperature (T), which is high enough to make the binder decompose so that it loses its binding properties, preferably under inert gas or in a vacuum, such that heat treated cell fragmented are formed, and (c) classifying the heat treated cell fragments, whereby (d) the classifying comprises air jet sieving and (e) the air jet sieving is carried out in such a way that the active material is separated from the support.

Method for reclaiming active material from a galvanic cell, and an active material separation installation, particularly an active metal separation installation

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Braunschweig, Germany

Wolfgang Haselrieder