Graphite spheroidizing and crushing device for lithium batteries and processing method

Abstract

The invention discloses a graphite spheroidizing and crushing device for lithium batteries. The graphite spheroidizing and crushing device for the lithium batteries comprises a base, wherein a rotating cylinder is rotationally connected onto the base; a partition plate is rotationally connected to the interior of the rotating cylinder; a fixing block is fixedly connected onto the partition plate; a mounting cavity is formed in the fixing block; a driving shaft is arranged in the mounting cavity and rotationally connected onto the fixing block; a sliding plate is fixedly connected onto the fixing block; multiple push plates are arranged on the fixing block in an annular array mode; the push plates are slidably connected onto the sliding plate; and the multiple push plates are fixedly connected with sliding rods correspondingly. According to the graphite spheroidizing and crushing device for the lithium batteries provided by the invention, along with the rotation of the driving shaft, extrusion blocks and the fixed connected sliding rods are indirectly pushed to move, and the ends, far away from the driving shaft, of the sliding rods are fixedly connected with the push plates, so that when the push plates move, graphite between the rotating cylinder and the push plates is uniformly crushed and ground, the graphite containing edges and corners is effectively ground, and the effect of better increasing the tap density is achieved.

Description

technical field [0001] The invention relates to the technical field of graphite spheroidizing and crushing, in particular to a graphite spheroidizing and crushing device and a processing method for lithium batteries. Background technique [0002] Graphite is a crystalline form of carbon. Hexagonal crystal system, iron ink color to dark gray, density 2.25 g / cm3, hardness 1.5, melting point 3652°C, boiling point 4827°C, soft, greasy, conductive, chemically inactive, corrosion-resistant, and acid , Alkali, etc. are not easy to react. When heated in air or oxygen, it can burn and generate carbon dioxide. Strong oxidants will oxidize it into organic acids, which are used as anti-friction agents and lubricating materials to make crucibles, electrodes, dry batteries, and pencil leads. [0003] When used in lithium batteries, the particle size of graphite particles is required to be small and the tap density is large. In existing graphite crushing devices, airflow crushing is comm...

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Problems solved by technology

[0003] When used in lithium batteries, the particle size of graphite particles is required to be small and the tap density is large. In the existing graphite crushing devices, airflow crushing is commonly used for crushing, because most of the airflow crushing devices do not have large particles inside. Carry out pre-selected graded crushing, grinding and rounding parts, so that the particle size difference after crushing is large, and the edges and corners are sharp, so the qualified tap density cannot be achieved.

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