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High efficiency batteries are key for the electrical vehicle (EV) transition and to enable energy storage to balance the grid when more renewable energy is used. Today, each EV battery goes through a 2D X-ray inspection for quality control – to catch among other things defects that could lead to e g fires. However, even with this and several other quality control steps these defects happen, leading to catastrophic damages both financially and in personal injuries.

100 % 3D X-ray inspection, or 3D complement to 2D inspection in unclear cases, is a promising path to satisfactory quality control. But, in order to achieve 100 % 3D X-ray inspection, a high-power X-ray source with a micrometer sized X-ray spot is needed – something previously not available on the market.

With the MetalJet E1+, Excillum is addressing this problem, to enable high-speed 3D X-ray inspection of batteries and other industrial parts. In these videos, you’ll see examples of how we achieve a full CT-scan with micrometer resolution of an EV battery cell and a Li-ion battery in only 1 second. These demonstrations were performed at Excillum’s facilities in Sweden using our MetalJet E1+, a high-performance detector from Direct Conversion (Thor FX20.256 CdTe) and a high-speed, high-precision rotation stage.

EV battery cell:

Li-ion battery:

Please contact us for further discussions, we are more than happy to engage with experts to address battery inspection field, and others, in the best possible way. 

Related product

MetalJet E1+

Related X-ray method

Attenuation-contrast imaging

Related industry & market

EV battery inspection


Improve first-pass yield in battery manufacturing
MetalJet and NanoTube for X-ray imaging applications
The MetalJet technology


Enabling battery quality at scale via high-throughput CT
Increasing throughput and resolution of industrial X-ray inspection


High throughput CT inspection is here