Project description:
As an essential part of the sealing welding process, cell top cover plate welding is related to whether the lithium battery can work safely and stably. Each prismatic shell battery shell is composed of a shell body and cover plate. The battery cover plate is a key component that seals the shell with the cell, outputs the internal energy, and ensures the safety of the cell. The process of using the laser to weld the cover plate can produce various defects, which will severely affect the safety of cells.
Defect types:
Burst welds, pinholes, solder skips, discontinuous welds, step height, step height, etc.


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