A kind of lithium-ion battery negative electrode carbonization device and carbonization method thereof

Abstract

A lithium ion battery negative electrode carbonization device disclosed in the invention comprise a liquid storage tank, a condenser, a carbonization tank and a dry communicated with that liquid storage tank at the upper end of the liquid storage tank; The dryer is provided with an exhaust pipe; A display screen and a processor electrically connected with the display screen are installed on the side of the liquid storage tank. An upper end of that carbonize box is detachably and sealably connected with a box cover; The condenser is respectively communicated with the inside of the carbonizationtank and the liquid storage tank through an inlet pipe and an outlet pipe; A liquid infusion pump is arrange on that bottom of the liquid storage tank, and a liquid inlet pipe communicated with the interior of the carbonization tank is arrange on the liquid infusion pump. The device and method has the advantages that the negative electrode carbonization device of the lithium ion battery and the carbonization method thereof can recover and utilize the amorphous carbon precursor solution, which not only saves the coating material, reduces the cost of the material, but also has good carbonization effect.

Description

technical field [0001] The invention relates to the field of lithium batteries, in particular to a lithium ion battery negative electrode carbonization device and a carbonization method thereof. Background technique [0002] Graphite materials such as graphite powder and graphite film are widely used as negative electrode materials in lithium batteries due to their unique electrical and thermal properties. It has the advantages of long cycle life, fast charge and discharge, and no environmental pollution, but the poor compatibility of graphite and electrolyte limits the application of pure graphite in lithium-ion batteries. Therefore, it is necessary to modify the graphite material and coat a layer of amorphous carbon material on the surface of the graphite to increase its tap density and increase the charge and discharge capacity of the battery. [0003] At present, the traditional coating method is generally to pour the graphite negative electrode material into the amorph...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a lithium ion battery negative electrode carbonization device and its carbonization method in order to solve the above problems, so as to solve the problem that the traditional lithium ion battery negative electrode carbonization device in the prior art needs to consume a large amount of amorphous carbon precursors Solution, high cost of coating materials, and poor carbonization effect

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