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

Abstract

The invention discloses a preparation device of a lithium ion battery anode silicon-carbon composite material, and relates to the technical field of battery manufacturing. The preparation device of the lithium ion battery anode silicon-carbon composite material includes a machine body, the bottom of the machine body is welded with a base, and the top of the machine body is welded with a cylinder.The top of the inner wall of the cylinder is fixedly provided with a driving motor. An output shaft of the driving motor is fixedly connected with the top end of a driving rod through a coupling. Thetop of the machine body is provided with a material groove. The bottom end of the driving rod is fixedly provided with a grinding ball protection mechanism. The preparation device of the lithium-ion battery anode silicon-carbon composite material is operating based on the cooperation of the grinding ball protection mechanism and an attached powder scraping mechanism. The device can effectively reduce the high temperature generated during the working process of a grinding ball. At the same time, the grinding ball protection mechanism eliminates a static charge on the surface of the grinding ball. The simultaneous operation of the attached powder scraping mechanism can form a continuous and intermittent barrier between powder and the grinding ball.

Description

technical field [0001] The invention relates to the technical field of battery manufacturing, in particular to a preparation device for a negative electrode silicon-carbon composite material of a lithium ion battery. Background technique [0002] Due to the advantages of high specific energy, good safety, and low environmental pollution, lithium-ion batteries have broad application prospects in various portable electronic devices and electric vehicles. In recent years, with the increasing demand for high-energy power sources, a lot of research has been carried out on how to develop lithium-ion batteries with high energy density and fast high-power charging and discharging. Experiments have shown that the composite materials prepared by combining silicon and carbon materials can It can effectively improve the electrical performance of lithium-ion batteries. In the process of preparing silicon-carbon composite materials by most thermal decomposition methods or chemical vapor ...

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Problems solved by technology

[0003]However, in actual production and processing activities, the processing quality of the ball milling method has higher requirements on the heat dissipation effect. The powder in the trough is ground. If the heat dissipation effect is not effectively guaranteed in this processing method, it is easy to cause the powder to be adsorbed on the surface of the grinding ball based on the electrostatic charge generated by high-speed friction, which will affect the contact between the grinding ball and the rest of the powder. situation that affects

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