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.