Applications and Development of X-ray Inspection Techniques in Battery Cell Production

Demand for lithium-ion battery cells (LIB) electromobility has risen sharply in recent years. In order to continue serve this growing market, large-scale production capacities require further expansion and the overall effectiveness of processes must be increased. Effectiveness can significantly optimized through innovative manufacturing technology by identifying scrap early chain. To enable these two approaches, it is imperative quantify safety- function-critical product features critical steps appropriate measurement techniques. The overview paper on quality control LIB illustrates necessity improved inspection techniques with X-rays realize a fast, online inner cell assembly short cycle times visualize product-process interactions optimization electrolyte filling. Therefore, new are presented that contribute overcoming aforementioned challenges targeted use X-rays. First, based results previous experiments which X-ray beam directions were deliberately varied, coordinate anode-cathode (AC) overhang was developed using line detector. Second, concept continuous 2D visualization filling process presented, used future optimize time-critical step. By X-ray-permeable portable vacuum chamber possible influence parameters distribution LIB.