The X-ray CT technology performs three-dimensional characterization of lithium battery pole pieces, displays the three-dimensional structure of electrode materials, and analyzes the compacted density of pole pieces.
Inner defects of button batteries, cylindrical batteries, quadrate aluminum shell batteries, soft pack batteries, and other single cell batteries, such as poor alignment of pole pieces, fractures of pole piece, pole piece wrinkles and deformations, welding porosity defects, etc.; and analysis of structural changes during battery life span.