Battery positive electrode material ball milling device capable of screening materials

Abstract

The invention provides a battery positive electrode material ball milling device capable of screening materials. The device comprises a ball milling box, a driving device, a filling device and a screening device; the filling device is arranged on the left portion of the ball milling box, a ball milling wheel is arranged in the ball milling box and installed on the driving device, and an observation window is arranged on the upper portion of the ball milling box; the driving device is composed of a driving motor, a support, a support plate, a coupler, a transmission, a rotation shaft and a bearing; the filling device is composed of a leakage pipe, a filling pipe, a connecting rod, a filling bin, a top cover, a handle and a second hinge; the screening device is composed of a discharging pipe, a discharging hopper, a support rod, a first hinge, a screening box, a top plate, a feeding pipe, a filter screen, a protective cover, a spring, a cam and a screening motor. According to the battery positive electrode material ball milling device capable of screening the materials, the materials which are not fully ball-milled can be screened out and then discharged into the ball milling box through the screening pipe to continue to be ball-milled, and therefore the ball milling efficiency is improved; the filter screen can vertically wobble, and therefore the screening efficiency can be improved.

Description

technical field [0001] The invention relates to a ball milling device, in particular to a battery positive electrode material ball milling device capable of screening materials. Background technique [0002] In the composition of lithium-ion batteries, the quality of positive electrode materials is an important factor that determines the electrochemical performance and safety performance of lithium-ion batteries. At present, in the production process of positive electrode materials, in order to produce uniform reaction, high crystal quality, uniform pores, and surface area For lithium-ion battery cathode material products with small size, large apparent specificity, and stable electrochemical performance, the cathode material must first be ball-milled to obtain a uniform and high-fineness cathode material. The ball milling equipment in the prior art does not have a recovery system designed. During the production process , not only pollute the environment, but also lose part ...

AI Technical Summary

Problems solved by technology

[0002] In the composition of lithium-ion batteries, the quality of positive electrode materials is an important factor that determines the electrochemical performance and safety performance of lithium-ion batteries. At present, in the production process of positive electrode materials, in order to produce uniform reaction, high crystal quality, uniform pores, and surface area For lithium-ion battery cathode material products with small size, large apparent specificity, and stable electrochemical performance, the cathode material must first be ball-milled to obtain a uniform and high-fineness cathode material. The ball milling equipment in the prior art does not have a recovery system designed. During the production process , not only pollute the environment, but also lose part of the positive electrode materials, and increase the pollution control cost and production cost, which brings great economic losses to the positive electrode material production enterprises; materials, or the screening efficiency is low, and it is very inconvenient to use, which cannot meet people's needs for ball milling of battery cathode materials; in addition, traditional ball milling devices generally cannot directly observe the ball milling of materials

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