Automatic waste sagger positive electrode material recovery equipment for lithium battery positive electrode material sintering

Abstract

The invention relates to the technical field of lithium battery material recovery, in particular to automatic waste sagger positive electrode material recovery equipment for lithium battery positive electrode material sintering. The automatic waste sagger positive electrode material recovery equipment comprises a feeding inlet, and a bottom end opening of the feeding inlet is fixedly connected with a grinding body. The bottom of the grinding body is fixedly connected with a material falling pipe, and the end, away from the grinding body, of the material falling pipe is fixedly connected with adissolving tank. The bottom of the dissolving tank is fixedly connected with a liquid falling pipe, and a first filter screen is arranged on the inner wall of the liquid falling pipe. The end, away from the dissolving tank, of the liquid falling pipe is fixedly connected with an extraction tank, and the side wall, flushing with a base surface, of the extraction tank is fixedly connected with an extraction liquid inlet pipe. The end, away from the liquid falling pipe, of the extraction tank is fixedly connected with a liquid outlet pipe, and a liquid outlet is formed in the base surface of theliquid discharge pipe. A filter screen placing opening is formed in the side wall of the liquid outlet pipe, and a second filter screen is arranged on the inner wall of the filter screen placing opening. The automatic waste sagger positive electrode material recovery equipment achieves integrated recovery, has a high automation degree, a high recovery rate, high recovery purity and simple operation, and greatly reduces the recovery cost.

Description

technical field [0001] The invention relates to the technical field of recycling lithium battery materials, in particular to equipment for automatically recycling positive electrode materials from waste saggers used for sintering positive electrode materials of lithium batteries. Background technique [0002] According to statistics, the world's consumption of lithium-ion batteries was 500 million in 2000, and reached 7 billion in 2015. Due to the limited service life of lithium-ion batteries, a large number of waste lithium-ion batteries are also produced, which brings environmental pollution. [0003] The cost of battery positive electrode materials accounts for more than 1 / 3 of the cost of a single battery, and because the negative electrode currently uses more carbon materials such as graphite, lithium titanate Li4Ti5O12 and silicon carbon negative electrode Si / C are less used, so the current battery recycling technology is mainly aimed at It is battery cathode material...

AI Technical Summary

Problems solved by technology

[0004] In the existing technology, it is difficult to recycle positive electrode materials of batteries, the recovery rate is low, and the cost is high, which is not conducive to the pursuit of economic benefits by enterprises, thus reducing the motivation of corporate social behavior

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