Guangdong Brunp Recycling Technology Co., Ltd

Hunan Brunp Recycling Technology Co. Ltd.

Hunan Brunp Ev Recycling Co., Ltd.

Yichang Brunp Recycling Technology Co., Ltd.

Jiangdong Chen

Yinghao Xie

Changdong Li

Haijun Yu

Benben Wu

Jialei Xu

Tao Wang

Disclosed is a method for repairing a waste silicon-carbon material which relates to the technical field of secondary batteries. The method for repairing a waste silicon-carbon material includes the following steps: (1) pretreating the waste silicon-carbon material to obtain a powdery mixture; (2) mixing the powdery mixture obtained in step (1) with an metal-organic framework compound, and washing and drying the mixture to obtain a black powder; and (3) mixing the black powder obtained in step (2) with graphite, calcining the mixture in an acetylene atmosphere, and subjecting the calcined product to vapor deposition, cooling, washing and drying to obtain a silicon-carbon material.

Method for repairing waste silicon-carbon material and application thereof

A method for preparing a refractory material from waste battery residues. The method comprises the following steps: (1) disassembling waste batteries, then sorting same to obtain positive and negative electrode powders, leaching the positive and negative electrode powders with an acid, filtering same to obtain a graphite slag, and then subjecting the filtrate to copper removal, followed by the addition of an alkali for a precipitation reaction, wherein the resulting precipitate is an iron-aluminum slag; (2) wrapping the graphite slag obtained in step (1) with wet clay to form an inner core material, then mixing wet clay with the iron-aluminum slag, wrapping the inner core material with same, and aging the wrapped inner core material to obtain a blank; (3) pre-sintering, calcining and cooling the blank prepared in step (2) to obtain a fired product; and (4) washing and drying the fired product to obtain the refractory material.

Method for preparing refractory material from waste battery residues, and use of refractory material

Disclosed is a method for recovering and processing a retired battery electrode plate. The method includes disassembling a retired battery to obtain an electrode plate, energizing two ends of the electrode plate until a binder on the electrode plate is heated and melted, and then separating out an electrode material and a current collector, and when the electrode plate is a negative electrode plate, ball milling the separated electrode material, winnowing the ball-milled material to obtain graphite, subjecting the graphite to an alkali treatment, adding the graphite, which has been subjected to the alkali treatment, and an aggregate to softened asphalt, and stirring same to obtain conductive asphalt. The two ends of the electrode are energized, such that the binder is melted into liquid to flow out of the current collector, and the electrode material is stripped off the electrode plate.

Recovery processing method for spent battery electrode plate

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Foshan, China

Jiangdong Chen