Quality improvement of EV battery's electrode thickness
Manual inspections of electrode sheets can cause delays in manufacturing and quality variation. Our solutions enable high-speed in-line inspections by applying sensing equipment and inspection algorithms that can deliver high-precision measurement in real time.
Challenge
As advanced electrode materials enable thinner electrode sheets, quality requirements are becoming more demanding. To prevent defects, measurement variations must be eliminated in manual sampling inspections of electrode sheets. One way to do this by implementing a system for high-precision in-line measurement.
Solution
Our solutions measure the thickness of electrode sheets immediately after they are pressed, and relay the data, in real time, to pressing equipment. The press equipment then uses this data to control roller pressure and clearance. OMRON technology provides double-sided thickness measurement, where sheet thickness is measured from the upper and lower sides. This method delivers more accurate measurements for flapping sheets compared to those that reflect light from only one side of the sheet.
Our solution provides inline inspection that measures thickness in real-time
- Requires no electrode sampling inspections
- Measures electrode thickness and notifies errors in real-time
- Quick feedback of inspection results prevents defects from escaping
