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CN-224221804-U - Pole piece production equipment and production system

CN224221804UCN 224221804 UCN224221804 UCN 224221804UCN-224221804-U

Abstract

The application discloses a pole piece production device and a pole piece production system. The pole piece production equipment comprises a conveying device, a coating device, a drying device and a vibrating device, wherein the conveying device is used for conveying the current collector along a conveying path, the coating device is positioned on the conveying path and used for coating slurry on the first surface of the current collector, and the drying device is provided with a drying station which is used for drying the slurry on the first surface. The vibration device is located between the coating device and the drying station on the conveying path, and comprises an ultrasonic vibrator and a vibration main body part, and the ultrasonic vibrator drives the vibration main body part to apply vibration to the second surface of the current collector. From this, coating unit is to first surface coating thick liquids, and vibrating device is located between coating unit and the stoving station, through controlling vibrating device's vibration amplitude, vibration direction and parameters such as vibration frequency, improves the shake level efficiency to thick liquids, dries the thick liquids back, can improve the uniformity of pole piece weight.

Inventors

  • LV JIAQI
  • SHANG HONGWU

Assignees

  • 宁德时代新能源科技股份有限公司

Dates

Publication Date
20260512
Application Date
20250408

Claims (11)

  1. 1. A pole piece production device, characterized in that the pole piece production device comprises: A conveying device for conveying the current collector along a conveying path; A coating device, located on the conveying path, for coating the slurry to the first surface of the current collector; A drying device downstream of the coating device on the conveying path, the drying device having a drying station for drying the slurry of the first surface; The vibration device is positioned between the coating device and the drying station on the conveying path and comprises an ultrasonic vibrator and a vibration main body part, the ultrasonic vibrator is connected with the vibration main body part, the ultrasonic vibrator drives the vibration main body part to apply vibration to the second surface of the current collector, and the first surface and the second surface are arranged in a back-to-back mode.
  2. 2. The pole piece production device according to claim 1, wherein the ultrasonic vibrator is connected to a side of the vibration main body portion facing away from the second surface, and the ultrasonic vibrator drives the vibration main body portion to apply vibration perpendicular to the second surface.
  3. 3. The pole piece production apparatus according to claim 1, wherein the ultrasonic vibrator is connected to a side wall of the vibration main body portion on the conveying path, the ultrasonic vibrator driving the vibration main body portion to apply vibration along the conveying path to the second surface.
  4. 4. The pole piece production apparatus according to claim 1, wherein the ultrasonic vibrator is connected to a side wall of the vibration main body portion in a lateral direction, the ultrasonic vibrator bringing the vibration main body portion to apply vibration in the lateral direction to the second surface, wherein the lateral direction is parallel to the second surface and intersects the conveying path.
  5. 5. The pole piece production apparatus according to any one of claims 1 to 4, wherein the number of the vibrating means is plural, and the ultrasonic vibrator of a part of the vibrating means drives the vibrating body portion to apply vibration along the conveying path to the second surface, and the ultrasonic vibrator of a part of the vibrating means drives the vibrating body portion to apply vibration along a transverse direction to the second surface, wherein the transverse direction is parallel to the second surface and intersects the conveying path.
  6. 6. A pole piece production apparatus according to any one of claims 1 to 5, wherein the number of the vibrating devices is plural, and the plurality of the vibrating devices are arranged at intervals in a transverse direction perpendicular to the conveying path.
  7. 7. A pole piece production device according to claim 6, characterized in that the coating means are adapted to apply the slurry to different areas of the first surface in the transverse direction, each area of the coating means to which the slurry is applied corresponding to at least one of the vibrating means.
  8. 8. The pole piece production device of any one of claims 1 to 7, wherein the vibration body portion includes a contact cambered surface that protrudes toward the second surface.
  9. 9. The pole piece production device of any one of claims 1 to 8, wherein the drying means comprises a coating oven; The drying station and the vibration device are positioned in the coating oven; Or the drying station is positioned in the coating oven, and the vibration device is positioned outside the coating oven.
  10. 10. A pole piece production device according to any one of claims 1 to 9, wherein the conveying means comprises a back roller and a plurality of passing rollers, the back roller and the plurality of passing rollers being arranged at intervals in sequence along the conveying path, the back roller and the coating means being arranged opposite each other, the vibrating means being arranged between the back roller and the passing rollers, or the vibrating means being arranged between the two passing rollers.
  11. 11. A pole piece production system, characterized in that it comprises a pole piece production device as claimed in any one of claims 1 to 10.

Description

Pole piece production equipment and production system Technical Field The application relates to the technical field of battery processing, in particular to pole piece production equipment and a pole piece production system. Background Energy conservation and emission reduction are key to sustainable development, so that the adjustment of an energy structure is promoted, and the development and application of a battery technology are promoted. The development of battery technology is critical to electrochemical energy storage technology, which has been widely used in portable electronic, electric vehicles and energy storage systems due to its advantages of high energy density, good cycling ability, high operating voltage, environmental protection, low self-discharge, etc. In the production process of the battery pole piece, the slurry is usually required to be coated on the current collector, and then the slurry is dried to form the battery pole piece, but in the process of coating the slurry on the current collector to drying the slurry, the problem that the slurry is unevenly distributed on the current collector is easy to occur, so that the fluctuation of the weight distribution of the battery pole piece after drying and forming is large, and the consistency of the weight of the pole piece is poor. Disclosure of utility model The application aims to provide a coating device and a coating system, which aim to solve the technical problems in the prior art. In order to solve the problems, the application provides pole piece production equipment which comprises a conveying device, a coating device, a drying device and a vibrating device, wherein the conveying device is used for conveying a current collector along a conveying path, the coating device is positioned on the conveying path and used for coating slurry on the first surface of the current collector, the drying device is positioned on the conveying path and downstream of the coating device, and the drying device is provided with a drying station which is used for drying the slurry on the first surface. The vibration device is located between the coating device and the drying station on the conveying path, and comprises an ultrasonic vibrator and a vibration main body part, wherein the ultrasonic vibrator is connected with the vibration main body part, and drives the vibration main body part to apply vibration to the second surface of the current collector, and the first surface and the second surface are arranged in a back-to-back mode. From this, coating unit is used for coating thick liquids to the first surface of mass flow body, vibrating device is located between coating unit and the stoving station on the delivery path, and vibrating device's ultrasonic vibrator drives vibration main part and applys the vibration to the second surface of mass flow body, easily control parameters such as vibration amplitude, direction of vibration and vibration frequency through ultrasonic vibrator, improve the shake level efficiency to thick liquids, then dry through the stoving station of drying device thick liquids that shake level and handle, improve the great risk of pole piece weight distribution fluctuation, and then can improve the uniformity of pole piece weight. In some embodiments, an ultrasonic vibrator is connected to a side of the vibration body portion facing away from the second surface, and the ultrasonic vibrator drives the vibration body portion to apply vibration perpendicular to the second surface. From this, ultrasonic vibrator is located the one side that vibration main part deviates from the second surface, reduces ultrasonic vibrator and vibration main part and produces the risk of interference to the thick liquids, and ultrasonic vibrator applys the vibration of perpendicular to second surface through vibration main part to the second surface simultaneously to make thick liquids produce the vibration of perpendicular to second surface, the vibration of the thick liquids of being convenient for levels, improves the uniformity of pole piece weight. In some embodiments, an ultrasonic vibrator is coupled to a side wall of the vibrating body portion on the conveying path, the ultrasonic vibrator driving the vibrating body portion to apply vibration along the conveying path to the second surface. Therefore, the ultrasonic vibrator is positioned on the side wall of the vibration main body part on the conveying path, the risk that the ultrasonic vibrator and the vibration main body part interfere with each other on the slurry is reduced, and the slurry positioned on the second surface is applied with vibration along the conveying path through the vibration main body part, so that the slurry vibrates along the conveying path, the slurry is convenient to vibrate and level on the conveying path, and the consistency of the weight of the pole pieces can be improved. In some embodiments, an ultrasonic vibrator is connected to a side wall of the vibra