H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 10/54 (2006.01) H01M 6/52 (2006.01) H01M 10/40 (2006.01)
Patent
CA 2309773
The invention relates to a process for recycling electrode materials from spent lithium batteries in which negative-electrode materials from the lithium/transition-metal mixed oxide class of compounds from discharged, spent lithium batteries can, after comminution of the electrode constituents, be re-synthesized into chemically identical products as employed for the production of the batteries, by mechanical and extractive processing of these constituents with the aim of removing positive-electrode constituents and other secondary constituents, such as binders and other processing auxiliaries, followed by controlled high-temperature treatment without leaving thermal decomposition products behind.
Arnold Giesela
Hemmer Reinhard P.
Schmidt Michael
Vogler Christian
Wohlfahrt-Mehrens Margret
Fetherstonhaugh & Co.
Merck Patent Gesellschaft Mit Beschraenkter Haftung
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