How to detect the thickness of battery diaphragm?

　　1. Single frame X-ray ensures the accuracy of online film thickness detection: the principle of online film thickness detection is to convert the attenuation of light passing through the film into film thickness. This means that the accuracy and stability of the detection must be guaranteed during the detection process.

　　2. Diaphragm thickness online control technology: There are two important technologies for lithium ion battery diaphragm thickness online control, one is vertical control, the other is horizontal control; One is online machine vision inspection technology.

　　3. MD control and CD control The so-called MD control and CD control refers to the thickness closed-loop control in the MD direction by controlling the speed of the feeding screw or the traction speed; The data is measured by scanning frames, and the data closed-loop control of CD direction is finally realized. The key technology is the CD banner alignment technology, that is, the detection data of the scan frame must be accurately aligned with the full mode position one by one. In addition, the shrinkage coefficient of the film should also be considered. Only alignment can be well controlled.

　　4. It is understood that the key to the lithium ion battery diaphragm is pinhole recognition. Energy storage electric introduced pinhole recognition technology for aperture detection, which is a technology to distinguish pinholes and bright spots through multi-channel imaging exposure. In addition to pinhole recognition, it also has other intelligent classification functions, namely intelligent classification algorithm.

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