Preparation equipment of anode silicon-carbon composite material of lithium ion battery

Abstract

The invention provides preparation equipment of an anode silicon-carbon composite material of a lithium ion battery, and relates to the field of lithium battery processing. The preparation equipment of the anode silicon-carbon composite material of the lithium ion battery comprises supporting legs, a comprehensive preparation tank for silicon-carbon composite material processing, a mixing mechanism for mixing the material, a grinding ball for grinding the material, a grinding material discharging mechanism and an in-ball heat dissipation mechanism. The supporting legs are fixedly installed atthe bottom of the comprehensive preparation tank. According to the preparation equipment of the anode silicon-carbon composite material of the lithium ion battery, the accumulated heat energy is usedfor generating potential energy at the same time of heat dissipation, the accumulation of powder materials is avoided, the heat loss of a grinding area is accelerated simultaneously, grinding, mixingand heat dissipation are carried out synchronously through special design, so that the problems that the high-temperature rupture of a grinding ceramic ball is prone to occurring due to the fact thatthe grinding space is small, heat generation of powder by friction is fast, and the high-temperature of the equipment is not prone to heat dissipation, the powder is prone to accumulating in blocks onthe side wall in clumps to block the uniform drop of the material,and the working efficiency is influenced are solved.

Description

technical field [0001] The invention relates to the technical field of lithium battery processing, in particular to a preparation device for a negative electrode silicon-carbon composite material of a lithium ion battery. Background technique [0002] In order to improve the electrical conductivity during the processing of lithium batteries, silicon-carbon composite materials are often used as the negative electrode material of lithium batteries. Add the carbon material to the ground silicon material and continue grinding. The grinding is as fine as possible. When grinding, mix the silicon carbon, and then put the mixed material into the ethanol solution of the phenolic resin precursor and mix it. In order to prevent There are still large particle materials in the ground material, so when the silicon-carbon mixture is put into the solution, it will continue to grind, which can reduce the large particle material as much as possible, improve work efficiency, and the grinding s...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a preparation equipment for lithium-ion battery negative electrode silicon-carbon composite materials, which solves the problem that due to the small grinding space, the heat generated by powder friction is fast, the high temperature of the equipment is not easy to dissipate heat, and the high temperature cracking of the grinding ceramic ball is prone to occur. , and the powder is easy to accumulate on the side wall in blocks, which hinders the uniform fall of the material and affects the work efficiency.

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