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Batteries

Batteries

CT scanning allows for a detailed, three-dimensional view of a battery's interior, without the need to disassemble it. This is crucial for identifying critical issues that could lead to battery failure or safety concerns including:

  • Electrode misalignment
  • Anode overhang
  • Separator integrity
  • Tab weld quality
  • Foreign material detection
  • Electrolyte distribution
  • Internal short circuits
  • Cell and module assembly
  • Density variations
  • Porosity in electrodes
  • Structural integrity of casing
  • Thermal runaway precursors

Watch our free Webinar (left) to learn more about how industrial CT inspects batteries across their full lifecycle.

The last product you should tear down with a hammer, vice, or a clamp is a battery, because it’s actually a hazard to do that. That’s why CT scanners are an important technology for understanding their inner workings.

21700 lithium-ion battery

Voyager’s dimensioning features allow engineers to measure anode overhang in batteries, as seen here in the LG21700 lithium-ion battery used in the Tesla Model 3 and Model Y.

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Lithium-polymer pouch cell

In this lithium-polymer battery, industrial CT reveals considerable layer separation as well as defects with both the tab weld and electrode layers, both of which could lead to thermal runaway.

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18650 lithium-ion battery

These 2D views of a lithium-ion battery allow engineers to pinpoint the exact location of foreign material, which could decrease battery efficiency and increase the risk of short circuits.

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Applications include:

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The Engineer's Guide to Battery Defects