Lithium battery industry
Full process solution provider
To provide a typical vision inspection scheme for the machine vision industry
Overview of the plan
Power battery

With the rapid popularization of new energy vehicles and the continuous expansion of the power battery industry, the production standards and quality and safety control of power batteries are becoming increasingly strict.


Based on self-developed algorithms and 2D, 2.5D, 3D+AI multi-dimensional visual application technology accumulation, HANSWELL has formed a leading optical, mechanical, electrical, computational, and soft visual inspection solution around the entire process of battery manufacturing, including film production, battery cells, and module segments. It fully covers the entire process of lithium batteries and empowers lithium battery manufacturing.

Visual inspection scheme for the entire process of square shell lithium batteries
  • Electrode manufacturing process section

    Extreme ear correction&defect detection

    Quality inspection of pole ear welding imprint

    Visual alignment and re inspection of laminating machines

    Quality inspection of adhesive testing for wound film production

    1
  • Cell manufacturing process section

    Appearance inspection of bare battery cells after hot pressing

    Pole ear size measurement&fold detection&presence of blue glue

    Welding printing quality&protective film inspection

    Adhesive quality inspection

    Welding printing quality inspection

    Detection of misalignment of the laminating machine

    Measurement of the hot melt point and distance from the film to the top cover edge of the Mylar machine

    Appearance inspection of encapsulated/glued battery cells

    Quality and Flanging Inspection of Top Cover Welding Seams

    Battery shoulder height&pole parallelism detection

    Liquid injection machine glue nail positioning and height detection

    Quality inspection of sealing nail welding

    Appearance inspection of battery surface before/after blue film coating

    2
  • Module/Pack manufacturing process section

    Busbar pre weld and post weld inspection

    Measurement of side seam welding dimensions and visual inspection

    Module appearance defect detection

    Full size measurement of module

    3
Visual inspection of the entire process of cylindrical batteries
Polar plate—Cell—Module segment

Detection and testing of the inner & outer ear of the battery casing machine

Battery positive pole center circular hole & insulation plate detection

Measurement of groove size for groove rolling machine

Post weld inspection of battery periphery

Appearance defect detection of cylindrical batteries

Detection of battery cap pole ear position

Appearance defect detection of battery spray code positive electrode

Battery barcode detection

Customer Case
Appearance defect detection of soft pack batteries
  • Solution
    iSenseAl Multimodal 2.0 Vision System+3D Detection
  • Testing items
    Adhesive tape leakage, skewness, bubbles, wrinkles, and foreign objects; Aluminum foil folding, wrinkling, damage, pits, dents, bumps, linear protrusions, residual electrolyte

  • Detection result
    Single model detection technology for multiple types of images based on phase deflection, professional customized scheme, can realize stable detection and visualization at the same time. Through one shot, it can generate multiple images that meet the purpose. 2.5D images can also extract highly variable parts, which is stable identification, simple operation and high efficiency.

  • 0%
    Missed call rate
  • ≤3%
    Misjudgment rate
  • Easy to operate
    Stable identification
Appearance defect detection of lithium battery pack after blue film
  • Solution
    iSenseAl Multimodal 2.0 Vision System+3D Detection
  • Testing items
    Bubbles, foreign objects, wrinkles; Uneven, cracked, dirty, membrane broken
  • Detection result
    The single model detection technology for multiple types of images based on phase deflection uses multiple detection methods to fuse, and the diameter accuracy of the detected bubbles can reach 0.06mm, greatly improving the defect detection accuracy, breaking the bottleneck that further production cannot be increased due to insufficient detection capability. At the same time, the time-sharing stroboscopic detection scheme is adopted, which has a higher cost performance ratio.
  • 0%
    Missed call rate
  • ≤1%
    Misjudgment rate
  • 300mm/s
    Scanning speed
  • 2.5S
    Detection time
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