Comet Yxlon GmbH

The battery - the heart of an electric car
In electric cars, the performance of the battery is crucial for the reliability, range and longevity of the entire vehicle. CT inspections with Comet Yxlon CT systems support both automotive and battery cell manufacturers with reliable, high-precision inspection data that helps reduce scrap in mass production, for example. Computed tomography is used to inspect the raw materials for the battery cell as well as the individual cells, the cells packaged into a module and the modules connected to form a battery system or battery pack.

Efficientquality assurance for battery cells
One of the biggest challenges in cell production is the high reject rate. As this represents a major cost factor, it is important to detect defective cells before further processing. The CT inspection systems from Comet Yxlon cover a wide range of techniques for non-destructive quality assurance and metrology applications. These include cathode/anode overhang measurements and testing for impurities and inclusions - the most common defects in a battery cell.

Reliable CT inspection of battery modules
The very tight component and connection tolerances as well as the special requirements for contact welding make stacking battery cells for the production of battery modules a challenging task. Computed tomography with Comet Yxlon systems provides precise inspection results for the quality assessment of cell stack alignment, housing welds, cell connection welds and tab welds. In addition, laminography with Comet Yxlon enables overhang measurements of cells already installed in modules.

Testing battery systems and packs with CT
When the battery modules are assembled into a battery system, they are connected to the system housing - usually a metal casting - which acts as a heat sink. Comet Yxlon CT test systems allow manufacturers to check this connection to ensure that all components are fully functional.