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Recovery and secondary use of Nickel-Manganese-Cobalt-Material from Cathodes of electric car traction batteries

  • Automotive technology is increasingly determined by electric vehicles driven by high-performance lithium ion batteries (LIB). Li-ion batteries equipped with layered oxide cathodes, which are constituted by oxides of nickel, manganese and cobalt, are proven as storage devices that combine high electrical power, high cycling stability and compact dimensions. These batteries contain large amount of valuable elements, such as the cathodes consisting of cobalt and nickel, the electrode carrier foils consisting of copper and aluminium. Therefore, spent LIB’s are valuable secondary resources. Thermal processing as the classical recycling-technology for LIB’s is energy-intensive and allow only a partial recovery of some value elements. Scientists of the Brandenburg University of Technology (Germany) developed in collaboration with industrial partners (SME) a process, in which the complex system LIB is partly automated dismounted into its basic components. The core of this process is the separation of anodes and cathodes from each other andAutomotive technology is increasingly determined by electric vehicles driven by high-performance lithium ion batteries (LIB). Li-ion batteries equipped with layered oxide cathodes, which are constituted by oxides of nickel, manganese and cobalt, are proven as storage devices that combine high electrical power, high cycling stability and compact dimensions. These batteries contain large amount of valuable elements, such as the cathodes consisting of cobalt and nickel, the electrode carrier foils consisting of copper and aluminium. Therefore, spent LIB’s are valuable secondary resources. Thermal processing as the classical recycling-technology for LIB’s is energy-intensive and allow only a partial recovery of some value elements. Scientists of the Brandenburg University of Technology (Germany) developed in collaboration with industrial partners (SME) a process, in which the complex system LIB is partly automated dismounted into its basic components. The core of this process is the separation of anodes and cathodes from each other and an almost complete recovery of the cathode material from the foil. The recovered cathode material has an enormous potential for a re-use in new LIB’s. By a proper combination of separation and post-treatment the material has a quality that is close to virgin cathode material. Preliminary studies made on LIB’s containing a fraction of recycled cathode material up to 50% show an electrical performance comparable to LIB’s made from virgin material.show moreshow less

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Metadaten
Author: Jens Markowski, Jörg AckerORCiDGND, Jana Ducke, Matthias Schelter
ISBN:978-1-926872-47-6
Title of the source (English):59th Annual Conference of Metallurgists : emerging technologies in materials and metallurgical industries : COM 2020
Publisher:Canadian Institute of Mining, Metallurgy and Petroleum
Document Type:Conference publication peer-reviewed
Language:English
Year of publication:2020
Contributing Corporation:COM - Canadian Institute of Mining, Metallurgy and Petroleum
Tag:Lithium-Ionen-Battery; NMC-Re-use
Volume/Year:2020
Article number:810719
Faculty/Chair:Fakultät 2 Umwelt und Naturwissenschaften / FG Aufbereitungstechnik und Sekundärrohstofftechnologie (ehemals)
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