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Case Study: WELLMAN X6800 X-Ray Inspection for 18650 Lithium Cells


Industry Pain Point

18650 lithium batteries are widely used in power tools, power banks and small energy storage. Internal winding misalignment, metal foreign matter, pole piece wrinkles, negative electrode overhang and tab welding voids cannot be detected by visual inspection. These hidden defects easily trigger internal short circuits, thermal runaway and safety accidents.


Inspection Solution: WELLMAN X6800 Microfocus X-Ray System

Equipped with 5μm microfocus X-ray tube and 60° tilt HD flat panel detector, the X6800 delivers clear multi-angle imaging for cylindrical 18650 cells without losing magnification.
  • Large 530×530mm platform with 10kg load supports batch stacking detection of cells
  • One-click navigation quickly locks winding and tab welding areas
  • Intelligent measurement software automatically judges winding offset, void ratio and foreign matter, marks OK/NG in red and green
  • Customizable inspection programs for mass automatic batch testing
  • Simple operation, staff can be proficient after only 2 hours training


Main 18650 Inspection Items

  1. Winding defects: pole piece misalignment, wrinkles, negative electrode overhang, loose winding
  2. Tab welding: solder voids, cold solder, insufficient welding area
  3. Internal hazards: tiny metal foreign particles, separator damage
  4. Safety component: internal pressure relief structure offset


On-site Application Effect

A power battery manufacturer deployed X6800 for full inspection of finished 18650 cells:
  1. Fully non-destructive testing, no damage to finished batteries
  2. Unified automatic measurement standard, eliminate manual misjudgment and missed inspection
  3. Fast detection speed up to 3 seconds per detection point, improve production line efficiency
  4. Complete radiation safety interlock design, fully compliant with factory safety production standards


Summary

WELLMAN X6800 realizes full internal non-destructive quality inspection for 18650 lithium cells, effectively eliminating hidden safety risks and improving product reliability.
Case Study: WELLMAN X6800 X-Ray Inspection for 18650 Lithium Cells              Case Study: WELLMAN X6800 X-Ray Inspection for 18650 Lithium Cells