METHOD FOR RECOVERING NEGATIVE ELECTRODE GRAPHITE OF WASTE LITHIUM-ION BATTERY

A method for recovering negative electrode graphite of a waste lithium-ion battery, which method comprises: mixing the negative electrode graphite of the waste lithium-ion battery, a composite starch binder and asphalt, adding water thereto, subjecting the mixture to wet mixing to obtain a coated we...

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Bibliographische Detailangaben
Hauptverfasser:	FAN, Xia, NING, Peichao, WU, Xinge, RUAN, Dingshan, ZHOU, You, LI, Changdong
Format:	Patent
Sprache:	chi ; eng ; fre
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS THEREOF ELECTRICITY INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Zusammenfassung:	A method for recovering negative electrode graphite of a waste lithium-ion battery, which method comprises: mixing the negative electrode graphite of the waste lithium-ion battery, a composite starch binder and asphalt, adding water thereto, subjecting the mixture to wet mixing to obtain a coated wet material, preparing the coated wet material into a shaped part having a transverse size of 15-50 mm, subjecting same to carbonization treatment to obtain a graphite formed part, charging the graphite formed part into a vertical continuous graphitization furnace, sequentially subjecting same to low-temperature section and high-temperature section treatment of the vertical continuous graphitization furnace to obtain graphitized graphite, and crushing same to obtain a graphite finished product. Procédé de récupération de graphite d'électrode négative de batterie lithium-ion usagée, ledit procédé comprenant : le mélange du graphite d'électrode négative de la batterie lithium-ion usagée, d'un liant d'amidon composite