RECOVERY TREATMENT METHOD FOR WASTE LITHIUM BATTERY

The present invention relates to the technical field of battery material recycling. Disclosed is a recovery treatment method for a waste lithium battery. The method comprises the following steps: first carrying out pre-oxidation treatment on a crushed waste lithium battery material, and then carryin...

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Bibliographische Detailangaben
Hauptverfasser:	LI, Qiang, NING, Peichao, RUAN, Dingshan, ZHOU, You, LI, Changdong
Format:	Patent
Sprache:	chi ; eng ; fre
Schlagworte:	BASIC ELECTRIC ELEMENTS DISPOSAL OF SOLID WASTE ELECTRICITY PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY RECLAMATION OF CONTAMINED SOIL SOIL TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention relates to the technical field of battery material recycling. Disclosed is a recovery treatment method for a waste lithium battery. The method comprises the following steps: first carrying out pre-oxidation treatment on a crushed waste lithium battery material, and then carrying out acid pickling, wherein the waste lithium battery material comprises copper-aluminum slag and/or an Al-containing positive electrode sheet. By means of the pre-oxidation treatment, a passive film Al2O3 can be generated on an aluminum surface to avoid a reaction between H+ and Al in a subsequent acid pickling process, thereby reducing the hydrogen production amount in the acid pickling process from the source. La présente invention se rapporte au domaine technique du recyclage de matériau de batterie. Est divulgué un procédé de traitement de récupération pour une batterie au lithium usagée. Le procédé comprend les étapes suivantes : tout d'abord la réalisation d'un traitement de pré-oxydation sur un matériau de