X-ray inspection of energy storage batteries

How X ray inspection is performed in a battery?

Most major battery manufacturer inspection every single cell as part of automated quality control by automated X-ray inspection systems. Automated X-ray system examines defects such as bent metal or mild short. The X-ray inspection should be conducted for the following reasons. If shorted, an unprotected Li-ion cell will vent with flame.

How do X rays show a battery?

X-ray images or CT scans can show whether the materials in the battery are evenly distributed. Irregular distributions can indicate manufacturing defects that can affect battery performance. X-rays can detect air bubbles or air pockets within the battery.

How can X-ray spectroscopy identify battery chemistry?

Dual-energy X-ray transmission can identify battery chemistry and internal structure, allowing automated sortation into precise categories . Spectroscopic techniques, like laser-induced breakdown spectroscopy (LIBS), can rapidly characterize alloy composition .

Do X-rays show a damaged battery?

X-rays may show surface damage or cracks in the battery that may indicate improper handling or shipping damage. X-ray inspection and CT scans provide a non-invasive, rapid, and detailed examination of the internal structure and material distribution of batteries.

How do X-rays affect battery quality?

X-rays can show foreign particles or contaminants in the battery that were trapped during the manufacturing process and can affect battery quality. X-rays or CT scans may reveal internal shorting where the electrodes may accidentally touch and cause undesirable reactions.

What is a stereoscopic CT scan of a battery?

CT is a stereoscopic imaging technology that enables three-dimensional detection of the internal structure of batteries without any blind spots, allowing for comprehensive assessment of various components such as pole plates, pole ears, coated electrode materials, and battery shells.