In the precision world of lithium-ion battery manufacturing, even a separator alignment error exceeding 0.1mm or an electrode stacking misalignment exceeding 0.05mm can lead to short circuits, capacity decay, or even explosions in the battery cell. How can we ensure that the electrodes and separators are perfectly aligned during high-speed transport?

In this episode, Xiaoming will share how Akusense Sensors efficiently provides a high-precision deviation correction measurement solution for the transport of wound separators.

During the production process of lithium-ion battery stacking or winding machines, it is necessary to detect and control the positional deviation of the separator or electrode during transport in real time to ensure the neat internal structure of the wound or stacked cells.

Key Detection Points:

1. During high-speed transport, the separator/electrode is prone to lateral deviation due to tension fluctuations.

2. Uncontrolled micron-level deviations can lead to uneven internal cell structures, severely impacting battery performance and safety (e.g., causing internal short circuit risks).

3. Fast production pace requires sensors to maintain a response speed that keeps pace with the high-speed production line.

To address these challenges, we recommend Akusense high-precision laser alignment sensor ETD series, chosen by a well-known lithium battery manufacturer.

The sensor is installed on the separator transport path to detect the separator edge position in real time. The sensor feeds back the detected position deviation signal to the alignment system in real time, which then drives the alignment mechanism to correct the separator position promptly, thereby controlling the separator's positional deviation during transport.

1. High-Precision Detection: The ETD-0612 is based on the laser beam principle. Its steady-state laser image data processing mode provides clearer imaging while reducing interference, achieving high-resolution detection with an accuracy of up to 1μm (micrometer). This is crucial for the typically high-precision requirements (1 filament = 10 micrometers) in lithium battery manufacturing.

2. Ultra-fast Response: Boasting an ultra-fast 1ms response time, it perfectly matches the high-paced operation of lithium battery production equipment, meeting the demands of high-speed testing.

3. Strong Anti-interference: The laser beam principle provides strong anti-interference capabilities, making it less susceptible to ambient light, material reflection, or on-site vibrations, ensuring testing stability in complex industrial environments.

4. Non-contact Measurement: The non-contact measurement method does not cause any wear or contamination to the separator or electrode surface, ensuring material integrity.

5. Easy Integration and Debugging: The sensor can be paired with a dedicated controller (such as the CR-M02 controller), featuring a built-in high-definition color display, facilitating parameter setting and debugging by on-site engineers.