In the precision world of lithium battery manufacturing, if the alignment error of the separator exceeds 0.1mm and the misalignment of the electrode stack exceeds 0.05mm, it may cause cell short circuits, capacity degradation, and even explosion risks. How to make the high-speed transmission pole piece and diaphragm "indistinguishable"?

In this issue, Xiao Ming will share how Akusense sensors efficiently provide high-precision correction measurement solutions for coil diaphragm transmission

In the production process of lithium battery laminating or winding machines, it is necessary to detect and control the position deviation of the separator or pole piece in real time during the conveying process, to ensure that the internal structure of the wound or laminated battery cells is neat.

Testing points:

1. Diaphragm/polarizer is prone to lateral deviation during high-speed transmission due to tension fluctuations

2. If the micrometer level offset is not controlled, it can lead to uneven internal structure of the battery cell, seriously affecting battery performance and safety (such as causing internal short circuit risk)

3. The production pace is fast, requiring the response speed of sensors to keep up with the pace of high-speed production lines

Faced with the above challenges, we recommend a well-known lithium battery manufacturer to choose Akusense high-precision laser correction sensor ETD series.

The sensor is installed on the diaphragm transmission path to detect the edge position of the diaphragm in real time. The sensor feeds back the detected position deviation signal to the correction system in real time, and the control system then drives the correction mechanism to correct the diaphragm position in a timely manner, thereby controlling the position deviation of the diaphragm during the transmission process.