Search

CN-121983633-A - Plastic-aluminum film packaging method and system for soft package battery, controller and storage medium

CN121983633ACN 121983633 ACN121983633 ACN 121983633ACN-121983633-A

Abstract

The invention discloses an aluminum-plastic film packaging method and system, a controller and a storage medium of a soft package battery, wherein the method comprises the following steps of shooting an image of a battery cell in an aluminum-plastic film cavity through a first vision system after film combination, acquiring the relative position of the battery cell relative to the aluminum-plastic film cavity, and generating deviation data; calculating the displacement amount to be compensated of the top sealing mechanism according to the deviation data through a controller, and calculating the horizontal displacement to be moved of the top sealing mechanism on the X axis and the Y axis according to the compensated displacement amount; and the controller controls the top sealing mechanism to move based on the horizontal displacement so as to finish the top sealing of the battery cell. According to the invention, through the series of steps, the accurate alignment of the grooves on the capping mechanism and the battery cell lugs is ensured in the capping process, the abnormal thickness of the capping caused by the position deviation of the grooves and the battery cell lugs is avoided, and the hidden failure hidden trouble of the soft-package battery is reduced.

Inventors

  • CHENG XIAODONG
  • YANG CHENLONG

Assignees

  • 天能新能源(湖州)有限公司

Dates

Publication Date
20260505
Application Date
20260105

Claims (8)

  1. 1. The aluminum plastic film packaging method of the soft package battery is characterized by comprising the following steps of: shooting an image of a battery cell after film combination in an aluminum-plastic film cavity through a first vision system, acquiring the relative position of the battery cell relative to the aluminum-plastic film cavity, and generating deviation data; Calculating the displacement amount to be compensated of the top sealing mechanism according to the deviation data through a controller, and calculating the horizontal displacement to be moved of the top sealing mechanism on the X axis and the Y axis according to the compensated displacement amount; And the controller controls the top sealing mechanism to move based on the horizontal displacement so as to finish the top sealing of the battery cell.
  2. 2. The method for packaging the aluminum plastic film of the soft package battery according to claim 1, further comprising the step of feeding the battery cells: Grabbing the battery cell transmitted by the incoming material conveying line through a battery cell feeding mechanism, and placing the battery cell on a transfer station; shooting a body state image of the battery cell on the transfer station through a second vision system, and acquiring body state information of the battery cell; Calculating horizontal displacement and rotation angles of the battery cell feeding mechanism on an X axis and a Y axis according to the posture information through a controller; And controlling the movement and rotation of the cell feeding mechanism based on the horizontal displacement and the rotation angle through a controller, and conveying the cell to the aluminum-plastic film cavity.
  3. 3. The utility model provides a soft packet of battery plastic-aluminum membrane packaging system which characterized in that contains: a top sealing mechanism; The first vision system is used for shooting an image of the battery cell after film combination in the aluminum-plastic film cavity, acquiring the relative position of the battery cell relative to the aluminum-plastic film cavity and generating deviation data; And the controller is in communication connection with the first vision system and the top sealing mechanism, and is used for calculating the displacement amount required to be compensated by the top sealing mechanism according to the deviation data, calculating the horizontal displacement required to be moved by the top sealing mechanism on the X axis and the Y axis according to the compensated displacement amount, and controlling the top sealing mechanism to move based on the horizontal displacement so as to finish the top sealing of the battery cell.
  4. 4. The flexible battery plastic-aluminum film packaging system of claim 3, further comprising: The second vision system is arranged at a transfer station and is used for shooting a body state image of the battery cell transferred from the material conveying line to the transfer station and acquiring body state information of the battery cell; The controller is also in communication connection with the second vision system and is used for calculating horizontal displacement and rotation angle of the cell feeding mechanism on the X axis and the Y axis, which are required to be moved, according to the posture information, and controlling the cell feeding mechanism to move and rotate based on the horizontal displacement and the rotation angle so as to send the cell to the aluminum-plastic film cavity.
  5. 5. A flexible battery plastic-aluminum film packaging system as recited in claim 3, further comprising a conveying mechanism for conveying the plastic-aluminum film to the first vision system.
  6. 6. The flexible battery plastic-aluminum film packaging system according to claim 5, wherein the conveying mechanism comprises a rotary conveying table, and a plurality of limiting positions distributed at equal angles around the central axis are arranged on the rotary conveying table.
  7. 7. The controller is applied to an aluminum-plastic film packaging system of a soft package battery and is characterized by being configured to acquire deviation data sent by a first vision system, wherein the deviation data is generated by the first vision system through shooting an image of a battery cell after film combination in an aluminum-plastic film cavity and acquiring the relative position of the battery cell; calculating the displacement amount to be compensated by the top sealing mechanism according to the deviation data, and calculating the horizontal displacement to be moved by the top sealing mechanism on the X axis and the Y axis according to the compensated displacement amount; and controlling the top sealing mechanism to move based on the determined horizontal displacement so as to finish the top sealing of the battery cell.
  8. 8. A storage medium having stored thereon a computer program, characterized in that the program when executed by a controller realizes the steps of claim 7.

Description

Plastic-aluminum film packaging method and system for soft package battery, controller and storage medium Technical Field The invention relates to an aluminum plastic film packaging method and system for a soft package battery, a controller and a storage medium, and belongs to the technical field of soft package battery manufacturing. Background The packaging quality of the soft-pack battery is critical to its long-term safety and reliability. The aluminum plastic film packaging needs to be subjected to processes such as top sealing (sealing the electrode lugs), side sealing, tail sealing and the like, wherein the top sealing process is the link with the highest technical difficulty and most likely to fail. The metal tab of the battery core and a polypropylene (PP) layer of the aluminum plastic film are required to realize reliable sealing under hot pressing, so that a transitional barrier from metal to high polymer material is formed. On the existing automatic production line, a quality problem of hidden and time-lag effect generally exists, namely, a battery which is qualified in factory inspection occasionally has leakage failure at the top sealing tab after a client is used for a period of time. Disclosure of Invention Aiming at the defects of the prior art, one of the purposes of the application is to provide an aluminum plastic film packaging method of a soft package battery, which reduces the leakage failure problem existing in the actual use process of the soft package battery. An aluminum plastic film packaging method of a soft package battery comprises the following steps: shooting an image of a battery cell after film combination in an aluminum-plastic film cavity through a first vision system, acquiring the relative position of the battery cell relative to the aluminum-plastic film cavity, and generating deviation data; Calculating the displacement amount to be compensated of the top sealing mechanism according to the deviation data through a controller, and calculating the horizontal displacement to be moved of the top sealing mechanism on the X axis and the Y axis according to the compensated displacement amount; And the controller controls the top sealing mechanism to move based on the horizontal displacement so as to finish the top sealing of the battery cell. Preferably, the method further comprises the step of feeding the battery cells: Grabbing the battery cell transmitted by the incoming material conveying line through a battery cell feeding mechanism, and placing the battery cell on a transfer station; shooting a body state image of the battery cell on the transfer station through a second vision system, and acquiring body state information of the battery cell; Calculating horizontal displacement and rotation angles of the battery cell feeding mechanism on an X axis and a Y axis according to the posture information through a controller; And controlling the movement and rotation of the cell feeding mechanism based on the horizontal displacement and the rotation angle through a controller, and conveying the cell to the aluminum-plastic film cavity. The invention also discloses a soft package battery aluminum-plastic film packaging system, which comprises: a top sealing mechanism; The first vision system is used for shooting an image of the battery cell after film combination in the aluminum-plastic film cavity, acquiring the relative position of the battery cell relative to the aluminum-plastic film cavity and generating deviation data; And the controller is in communication connection with the first vision system and the top sealing mechanism, and is used for calculating the displacement amount required to be compensated by the top sealing mechanism according to the deviation data, calculating the horizontal displacement required to be moved by the top sealing mechanism on the X axis and the Y axis according to the compensated displacement amount, and controlling the top sealing mechanism to move based on the horizontal displacement so as to finish the top sealing of the battery cell. Preferably, the method further comprises: The second vision system is arranged at a transfer station and is used for shooting a body state image of the battery cell transferred from the material conveying line to the transfer station and acquiring body state information of the battery cell; The controller is also in communication connection with the second vision system and is used for calculating horizontal displacement and rotation angle of the cell feeding mechanism on the X axis and the Y axis, which are required to be moved, according to the posture information, and controlling the cell feeding mechanism to move and rotate based on the horizontal displacement and the rotation angle so as to send the cell to the aluminum-plastic film cavity. Preferably, a conveying mechanism for conveying the aluminum plastic film to the first vision system is further included. Preferably, the conveying mechanism compri