Conical powder mixing device and use method

Through the design of the conical powder mixing device, the structure of the forward and reverse stirring paddles and the conical material barrel is used to achieve low-speed and efficient powder mixing, solving the problems of insufficient powder fibrosis and equipment wear, and improving the performance and equipment life of the lithium-ion battery electrode.

CN120393791APending Publication Date: 2025-08-01JIANGSU HONGYUN INTELLIGENT EQUIP CO LTD
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Patent Information

Application Number
CN202510556849.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2025-08-01

AI Technical Summary

Technical Problem

In the preparation of existing dry electrodes, the powder fibrosis is insufficient and the high shear strength destroys the structure of the active material, resulting in a decrease in the electrochemical performance of lithium-ion batteries, and the traditional equipment has high energy consumption and large wear.

Method used

The conical powder mixing device is adopted to design the forward pushing stir paddle and the reverse pushing stir paddle to push the material in the opposite direction. Combined with the conical material barrel structure and low-speed stirring, internal and external circulation stirring are realized, and powder leakage is prevented through the blade design and sealing assembly on the stirring shaft.

Benefits of technology

It realizes high-efficiency and low-energy-consuming powder mixing, ensures the fibrotic effect of the powder, improves the electrochemical performance of the lithium-ion battery electrode, and extends the service life of the equipment.

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Abstract

The invention belongs to the technical field of electrode preparation, and particularly relates to a conical powder mixing device and a use method. The device comprises a base and a mounting frame fixedly mounted on the base; a material barrel; a stirring assembly; a driving assembly; the stirring assembly comprises a stirring shaft connected with the driving assembly, and at least one forward-pushing stirring paddle and at least one reverse-pushing stirring paddle which are sequentially and coaxially arranged with the stirring shaft; any adjacent forward-pushing stirring paddles, any adjacent reverse-pushing stirring paddles, and adjacent forward-pushing stirring paddles and reverse-pushing stirring paddles are arranged vertically; and during clockwise stirring, all the stirring blades are pushed to the connecting center of the forward-pushing stirring blade and the backward-pushing stirring blade. When the materials are stirred anticlockwise, the forward-pushing stirring paddle and the reverse-pushing stirring paddle push the materials towards the two ends of the conical material barrel, circulation, impact and extrusion of the materials can be achieved at the low rotating speed, high mixing efficiency and mixing quality are achieved, and meanwhile the good powder fibration effect is guaranteed.
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