The document discusses using x-ray and CT inspection techniques to examine batteries nondestructively. It describes how these methods can be used to check the internal electrode arrangement for defects, understand the cathode and anode layout, measure internal dimensions and alignments, evaluate electrical contacts and identify issues like short circuits or misaligned components. The techniques allow inspection of critical parts like jelly rolls for twisting, cuts or correct dimensions. CT inspection enables evaluation of the battery casing welding and thickness to check for flaws that could cause harm. The methods support full and rapid battery quality control inspection.