Graphite crusher

Abstract

The invention discloses a graphite crusher. The graphite crusher comprises a shell body, a crushing assembly, a screen, a cross-flow fan impeller and a plurality of motors, wherein a feeding port is formed in the top end of the shell body; the crushing assembly is arranged in the shell body and comprises a pair of first crushing rollers, a pair of second crushing rollers and a pair of third crushing rollers; the screen is arranged below the pair of third crushing rollers, the edge of the screen is connected to the inner wall of the shell body, and a coarse material outlet is formed in the position, connected with the lowest edge of the screen, of the shell body; the cross-flow fan impeller is arranged in the shell body and is positioned below the screen, a fine material outlet is formed between the position, right opposite to one side of the circumferential surface of the cross-flow fan impeller, of the shell body and the position, right opposite to the other side of the circumferential surface of the cross-flow fan impeller, of the shell body, and an air inlet is formed in the upper part of the position, right opposite to one side of the circumferential surface of the cross-flow fan impeller, of the shell body; and the plurality of motors are used for correspondingly driving the pair of first crushing rollers, the pair of second crushing rollers, the pair of third crushing rollers and a cross-flow fan to rotate. According to the graphite crusher, the crushing effect and the spheroidization effect for graphite are excellent.

Description

technical field [0001] The invention relates to the field of graphite powder production devices. More specifically, the present invention relates to a graphite pulverizer. Background technique [0002] Graphite is often used as the negative electrode material of lithium-ion batteries due to its advantages such as wide sources, low price, low charge and discharge voltage platform, and high reversible capacity. However, there are many disadvantages in using graphite as the negative electrode material of lithium-ion batteries, such as: graphite and The compatibility of the solvent is poor, the high-current charge and discharge performance is not good, and the graphite layer peels off due to the co-embedding of solvent molecules during the first charge and discharge, resulting in a decrease in click life, etc. The common way to solve the above problems is to modify the surface of graphite materials. For various modified graphites, the natural flake graphite must first be pulver...

AI Technical Summary

Problems solved by technology

[0002] Graphite is often used as the negative electrode material of lithium-ion batteries due to its advantages such as wide sources, low price, low charge and discharge voltage platform, and high reversible capacity. However, there are many disadvantages in using graphite as the negative electrode material of lithium-ion batteries, such as: graphite and Solvent compatibility is poor, high current charge and discharge performance is not good, the graphite layer peels off due to the co-embedding of solvent molecules during the first charge and discharge, resulting in reduced click life, etc.

The common way to solve the above problems is to modify the surface of graphite materials. For various modified graphites, the natural flake graphite must first be pulverized and processed into qualified spherical graphite powder. Although there are some graphite pulverizers available on the market, But its pulverization and spheroidization effect is not ideal

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