The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 2024
Filed:
Dec. 10, 2020
Accurec Recycling Gmbh, Krefeld, DE;
Reiner Sojka, Düsseldorf, DE;
Albrecht Melber, Darmstadt, DE;
ACCUREC RECYCLING GMBH, Krefeld, DE;
Abstract
A method for opening up electrochemical energy storage devices in connection with a subsequent recovery of valuable materials contained therein as secondary raw materials, in which method the energy storage devices are opened up by a thermal treatment system to remove the electrolytes and reactive substances, before the thermally treated material is subjected to processing, whereby secondary raw materials in the thermally treated material are separated from one another. The thermal treatment is performed in an indirectly heated furnace under atmospheric pressure conditions or a slight overpressure relative to the ambient pressure of up to 20 mbar in a reducing atmosphere, and influence is exerted on the course of the thermal treatment process via the reducing atmosphere, as a control variable. Furthermore, a thermal treatment system is described for removing electrolytes and reactive substances in electrochemical energy storage devices and consequently for pyrolytic opening.