The studied process deals with cobalt electrolytic recovery by means of both galvanostatic and potentiostatic electrowinning. The use of galvanostatic conditions allows to obtain a good Co metal deposit, while potentiostatic conditions provide a cobalt depletion in the electrolyte.This last operation is very interesting because the produced Co powder is transformed at 300 °C in Co3O4 precursor with Li2CO3 for the Lithium Cobalt Oxide cathode material. In this case we have not only a recovery of Co but also a true recycle of the cathode active paste.
Electrolytic cobalt recovery from lithium-ion batteries / Pasquali, Mauro; Lupi, Carla. - STAMPA. - (2001), pp. 41-53. (Intervento presentato al convegno Waste Processing and Recycling in Mineral and Metallurgical Industries IV tenutosi a Toronto, Canada nel Aug.2001).
Electrolytic cobalt recovery from lithium-ion batteries
PASQUALI, Mauro;LUPI, Carla
2001
Abstract
The studied process deals with cobalt electrolytic recovery by means of both galvanostatic and potentiostatic electrowinning. The use of galvanostatic conditions allows to obtain a good Co metal deposit, while potentiostatic conditions provide a cobalt depletion in the electrolyte.This last operation is very interesting because the produced Co powder is transformed at 300 °C in Co3O4 precursor with Li2CO3 for the Lithium Cobalt Oxide cathode material. In this case we have not only a recovery of Co but also a true recycle of the cathode active paste.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
