On May 16-18, the 15th Shenzhen International Battery Technology Exchange/Exhibition (CIBF2023), hosted by the China Chemical and Physical Power Supply Industry Association, was held in Pengcheng, with unprecedented grandeur and a record high number of visitors. The theme of this exhibition is "Power Batteries and Energy Storage Batteries", with an exhibition area of 240000 square meters. At the same time, 12 exhibition halls have been opened, gathering over 50 countries and regions, with nearly 3000 exhibitors and nearly 300000 visitors. It provides a professional lithium battery exchange platform for leading enterprises and industry visitors in the industry. Dongsheng Intelligent portable square battery/cylindrical battery/soft pack battery full process AI visual inspection scene (including process inspection and appearance inspection), as well as Handle AI intelligent algorithm platform/self-developed lithium battery industry full optical solution, have made a significant debut.

      01 

     Direct attack on site

At the exhibition, Dongsheng Intelligent presented a multi scene visual inspection display for various aspects of lithium battery production, including square power batteries/square energy storage batteries, large/small cylindrical 18650/4680 cylindrical batteries, power soft bags/digital soft bags, and other visual inspection challenges. Dongsheng's lithium battery industry solutions cover self-developed HanddleAI algorithm platform and self-developed 2D/2.5D/3D full optical solution, with high detection rate, high accuracy, high speed, and high-precision appearance inspection characteristics, solving more challenging technical problems in lithium battery production. The application of Dongsheng Intelligent's AI visual detection technology in the lithium battery industry has attracted a large number of domestic and foreign exhibition visitors and technical elites to stop and visit, discuss needs and exchange technologies.

    02

   Dongsheng AI Visual Inspection

   Assist in the transformation and upgrading of lithium battery intelligent manufacturing 

    The pole explosion-proof valve, sealing nail, and full appearance inspection after battery encapsulation in the lithium battery industry have always been pain points and difficulties in industry inspection. Dongsheng Intelligent brought a visual inspection solution for the entire process section of lithium battery production at the exhibition site.

Full appearance inspection and process inspection of square coated batteries

   箔材来料检测        纯铝壳平整度检测  

 涂布外观检测        入壳焊缝检测   

                                     辊分外观检测    顶盖激光焊接检测

   模分外观检测        注液检测      

裸电芯表面外观检测   密封钉激光焊接检测  

 超声波焊接检测      方形铝壳外观全检

 软连接片正负极性检测    方形包膜外观全检  

软连接片焊后检测    PACK段Busbar检测

                                      包Mylar检测          ......

Process inspection and final inspection of cylindrical batteries

  纯铝壳壳口/底部外观检    

    极耳成型外观检测       

 盖帽焊检测   

  底壳焊检测     

      顶盖周边焊检测         

      密封钉激光焊接检测      

                                             盖帽正反检测

圆柱包膜前外观全检

圆柱包膜外观全检

......

    03

    Six sided appearance inspection of square lithium battery

Full inspection of the appearance of square coated batteries

Energy storage battery&power battery

      The appearance inspection of lithium batteries after coating is a major pain point in the industry, as the blue film covered by lithium batteries is prone to defects such as scratches and bubbles during the production process. Moreover, the optical characteristics of the blue film itself can lead to unclear defect characteristics and a high rate of missed detection.

  Dongsheng Intelligent relies on its self-developed intelligent algorithm platform Handle AI, combined with 2D+3D customized optical solutions and rich technological precipitation in the vertical field of new energy to create a machine vision system solution. Not only can it quickly detect defects, but it is also suitable for the six sided appearance inspection of square coated batteries of different sizes and models. It can quickly and accurately capture blue film bubbles, blue film white spots, blue film bumps, blue film wrinkles Blue film damage, blue film scratches, blue film overlap width, blue film height, foreign objects on the surface of the blue film, blue film warping, blue film fingerprints, blue film dirt, blue film leakage solution, pole scratch, pole dirt, pole welding slag; There are more than 40 types of defects such as damaged explosion-proof valves, dirty explosion-proof valves, scratches, damages, and dirt on the PET film of explosion-proof valves, and leakage of electrolyte from explosion-proof valves.

Full inspection of the appearance of square aluminum shell batteries

Energy storage battery&power battery

In the battery process and production process, the aluminum shell is prone to scratches and scratches, posing a serious threat to the safety of the battery and may cause electrolyte leakage inside the battery. In order to avoid defective products flowing into the coating process, Dongsheng Intelligent has developed a visual solution for the full inspection of the square aluminum shell appearance.

This solution is based on AI+visual technology and integrates technologies such as 2.5D and small sample learning. It can accurately locate and detect the location and size of fine defects, with high defect detection accuracy and strong compatibility. It can quickly connect with existing production lines and easily complete the appearance defect detection of square lithium battery aluminum shells. It can detect more than 30 types of defects, including shell bumps, shell dents, shell scratches, shell electrolyte leakage, shell bulges, pole scratches, pole dirt, pole welding slag, 2D code scratches, 2D code damage, seal welding appearance, explosion-proof valve damage, explosion-proof valve dirt, explosion-proof valve leakage, and so on.

    04

   2D/2.5D/3D

   Self developed differentiated all optical solution

    By self-developed and designed a multi zone light source that can independently control angle and brightness, it ensures clear imaging of local reflective surfaces and directional defect features, and can solve imaging problems of industry pain points such as foreign objects inside the film, directional scratches, and large depressions.

    By combining customized 2.5D surface light and 2.5D line scanning camera with optical scheme design, combined with different angle light sources and corresponding image algorithm processing, shape images, normal reflection, diffuse reflection, etc. can be generated, and depth and height information can be clearly reflected through grayscale changes.

    2D time-sharing strobe, single imaging can generate multiple images under different light sources and angles, saving CT time, reducing workstation setup, and saving space. 3D line laser achieves stable detection of various surface states based on depth or height information features.

    05

    Handdle AI

   Safeguarding the quality of lithium batteries

    In response to the difficulties in the detection process of lithium batteries, Dongsheng Intelligent, based on its self-developed Handle AI intelligent algorithm platform, deeply integrates the traditional 2D/2.5D/3D detection algorithm with AI deep learning algorithm, combining AI technology with lithium battery production. With pixel level defect segmentation algorithm, it accurately captures fine defects, and combines professional optical solutions to quickly understand and evaluate defect issues on multiple core sections of power batteries, For the entire process of incoming materials, production, battery cells, modules/PACK lithium batteries, the product quality has been "checked layer by layer", and the detection effect has achieved a qualitative leap, providing a more efficient and cost-effective AI visual detection solution for the entire lithium battery production process.

    As a leading global provider of AI visual inspection solutions for lithium batteries, Dongsheng Intelligent continues to deeply cultivate lithium batteries, relying on the data precipitation of the entire production line to form a big model of the lithium battery industry. With professional optical imaging technology and AI algorithm capabilities, it is equipped with square batteries, cylindrical batteries, and soft pack batteries, covering the entire process and final inspection of lithium batteries. It quickly, accurately, and stably empowers customers in the lithium battery industry to intelligently transform their production lines, and jointly builds a global zero carbon future.