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

Abstract

The invention relates to a method and system for controlling the crushing and recycling of waste batteries. The method includes the following steps: sorting and classifying waste batteries to collect waste lithium ion batteries; Break the shell and collect the contents of the lithium-ion battery; physically sort the collected contents of the lithium-ion battery to collect the aluminum positive electrode sheet and the positive active coating attached to it; The positive electrode active coating on the waste battery is sent to the controlled crushing device of the waste battery for controlled crushing, and the mixture of aluminum particles and positive electrode powder is collected; the mixture of aluminum particles and positive electrode powder is finely screened, and the obtained aluminum particles are respectively Granules and cathode powders. The environmental pollution in the recovery process of the process and system of the present invention is greatly reduced, the energy consumption of material separation is less, and the recovered lithium cobalt oxide powder is close to the original 90% purity, which is convenient for economical operation.

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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