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Battery anode material pretreatment device

A positive electrode material and battery positive electrode technology, applied in the field of battery positive electrode material pretreatment equipment, can solve the problems of poor adhesion of positive electrode slurry, easy to fall off, etc., and achieve the effects of easy deformation and transmission, smooth transmission, flexible control and operation

Active Publication Date: 2011-04-20
SHENZHEN BAK POWER BATTERY CO LTD
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AI Technical Summary

Problems solved by technology

[0003] Therefore, when the existing power battery current collector is made, the adhesion of the positive electrode slurry on the current collector is very poor, and it is easy to fall off.

Method used

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Embodiment Construction

[0013] The present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0014] Please refer to figure 1 , the present invention relates to a battery cathode material pretreatment equipment, the pretreatment equipment is mainly aimed at the treatment of the cathode base material, using ultrasonic heating device heating, alkali erosion spraying method, so that the surface of the battery cathode base material is corroded, pits appear, Then rinse with pure water to remove the lye on the surface of the base material, then immerse and spray with pure water to thoroughly rinse the lye on the surface of the base material, and finally air-dry with a hot air drying device before winding. In this way, the surface of the positive electrode base material is treated to make the surface lose its smoothness and smoothness, so as to facilitate the adhesion of the positive electrode slurry, better avoid falling off...

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Abstract

The invention discloses a battery anode material pretreatment device, comprising a coil handling apparatus and a wrap-up device which are used for coating an anode material, and the anode material is transferred to the wrap-up device from the coil handling apparatus. An etching device for carrying out surface treatment on the anode material and a cleaning device for removing stains and etching liquid of the anode material subject to surface treatment are arranged on the transferring route of the anode material between the coil handling apparatus and the wrap-up device. The etching device of the pretreatment device is used for corroding the surface of the battery anode material to obtain cavities which are more convenient for adhering anode sizing agent; and the cleaning device is used for washing alkaline liquid on the surface of the anode material.

Description

technical field [0001] The invention relates to the field of battery electrode material production, in particular to a battery positive electrode material pretreatment device that is more conducive to the adhesion of positive electrode slurry and reduces the difficulty of making battery cells. Background technique [0002] With the development of the automobile industry, the power battery has gradually become a practical and environmentally friendly power source. Due to the large current provided by the power battery, the internal resistance of the battery itself, the discharge performance, and the free discharge have little impact on the battery output. Therefore, in order to provide a good cost performance and save costs, the production process requirements for the electrode collector of the power battery are generally not high. . [0003] Therefore, when the existing power battery current collector is made, the adhesion of the positive electrode slurry on the current col...

Claims

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Application Information

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IPC IPC(8): H01M4/04H01M4/64
CPCY02E60/12Y02E60/10
Inventor 陈曦卢红波
Owner SHENZHEN BAK POWER BATTERY CO LTD
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