Method of controlling fragmentation and recovery of waste battery and system thereof

Abstract

The invention relates to a controllably-crushing recovery method and system of scrap batteries, comprising the following steps that: the scrap batteries are separated and classified to obtain a collection of lithium-ion batteries; the casings of the lithium-ion batteries are shelled by a scrap-battery rejuvenator to obtain a collection of lithium-ion battery content; the collected lithium-ion battery content is physically separated to obtain a collection of aluminium positive plates and positive active coatings on the positive plates; the aluminium positive plates and the positive active coatings on the positive plates are sent into a controllably-crushing device of scrap batteries and processed controllably-crushing to obtain a collection of mixture of aluminium granule and positive powder; the mixture of aluminium granule and positive powder is subtly sieved and separated to respectively obtain the aluminium granule and the positive powder. The invention has the advantages of greatly reducing environmental pollution of recovery process, less material-separating energy consumption, being close to 90% of intrinsic purity for the lithium cobalt oxide powder from recovery and facilitating economic running.

Description

technical field [0001] The invention relates to an environmental protection and recovery equipment, more specifically, the invention relates to a recovery production technology and equipment for aluminum-containing waste batteries. Background technique [0002] Lithium-ion secondary batteries, since their commercial production and application in 1990, have many advantages such as small size, light weight, large power storage capacity, fast charging speed, wide temperature range, long working time and long cycle life. Therefore, it is widely used in cameras, mobile phones, notebook computers, and portable measuring instruments. [0003] Lithium-ion secondary batteries, including metal or plastic shells and batteries, including positive electrodes, negative electrodes, and separators. Generally, the active material of the positive electrode consists of about 90% lithium cobaltate powder and 7-8% carbon black conductive agent , 3-4% organic binder, the positive active material...

AI Technical Summary

Problems solved by technology

[0008] The above treatment method adopts dry method or wet method to separate lithium cobaltate from aluminum flakes. The separation process consumes a lot of energy, or will still cause some pollution to the environment, and no matter the dry method or wet method consumes a lot, it can only remove 90 % Lithium cobalt oxide powder is purified by several percentage points, it is difficult to guarantee economical operation

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