Lithium Battery Positive And Negative Electrode Measurement System Based On X-ray Image Analysis

As an unpolluted new energy source,lithium battery is the most widely used power source in the world.Its use has penetrated into people's daily life,so the safety of lithium battery is very important.In this paper,the measurement work is based on the x-ray image of lithium battery positive and negative electrode.In industrial production,a series of parameter requirements are required in the design and production of the battery core.One of the most critical parameter requirements is the difference distance between positive and negative electrodes in the length of the core.By measuring the difference distance between positive and negative electrodes in each layer,the maximum and minimum range of the difference distance can be determined to determine whether the positive negative electrode is misaligned.The dislocation of positive negative electrode can cause short circuit of battery,which can lead to safety hazard.The design of the positive and negative electrode measurement system for lithium batteries based on X-ray image analysis is proposed to provide parameter basis for battery quality detection.Specific research method is as follows:because the X-ray image has certain noise interference,and the gray level of the positive electrode is similar to that of the negative electrode,it is necessary to preprocess the image before processing it.Firstly,capture the region of interest in the image.Secondly,the region of interest was enhanced by multi-scale retinal enhancement algorithm.At last,the median filter is used for image denoising due to noise interference in the image.Sobel edge detection operator is used for edge detection.Finally,the improved Hough transform algorithm is used for the linear detection,in order to obtain the distance between the positive and negative electrodes and output their range.