Special device for producing silicon-carbon composite material and application method thereof

Abstract

The invention discloses a special device for producing a silicon-carbon composite material and application method thereof. The special device for producing the silicon-carbon composite material comprises a mixing tank; two sides of the top of the mixing tank are fixedly provided with positioning rods; the two positioning rods are movably sleeved by a same cover plate; two side of the bottom of thecover plate are provided with mounting holes matching with the positioning rods; the positioning rods are movably mounted in the corresponding mounting holes; the bottom of the cover plate is provided with two symmetrically arranged air outlets; the two air outlets are both located between the two mounting holes; the side walls of the air outlets are fixedly provided with snap rings; sealing gaskets are placed on the tops of the snap rings; and the tops of the sealing gaskets are fixedly provided with slide rods. The special device of the invention is simple in structure and convenient to operate, easily increases sealing between the cover plate and the mixing tank and between the sealing gaskets and the snap rings, realizes unidirectional breakover of the air outlets, and facilitates thedischarging of air in the mixing tank.

Description

technical field [0001] The invention relates to the technical field of production and preparation of silicon-carbon composite materials, in particular to a special equipment for producing silicon-carbon composite materials and a method for using the same. Background technique [0002] When silicon material is used as the negative electrode material of lithium-ion batteries, it has a specific capacity as high as 3580mAh / g at room temperature, but the huge volume expansion that occurs when silicon is alloyed with lithium leads to self-pulverization. Poor, which seriously affects the performance of silicon materials in batteries; after retrieval, the patent document with application number 201610557191.0 discloses a special equipment for producing silicon-carbon composite materials. The main structure is composed of a bracket, a mixing chamber and a sealing cover. The upper end of the cover is provided with an explosion-proof rotating motor, and the explosion-proof rotating mot...

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Problems solved by technology

[0003] However, the above-mentioned design is inconvenient to increase the sealing between the mixing chamber and the sealing cover, and when argon gas is introduced into the mixing chamber, neither the vent port nor the exhaust port has unidirectional conductivity, and it is inconvenient to quickly discharge the argon in the mixing chamber. Air affects the production efficiency of silicon-carbon composite materials, so we propose a special equipment for producing silicon-carbon composite materials and its use method to solve the above problems

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