The main process of lithium battery assembly, and then analysis and disassembly step by step. The lithium battery assembly process includes positive and negative electrode baking → negative electrode bag making → lamination → pre-welding → trimming → welding → glue → inspection → packaging → film → XRAY test → bake → liquid injection → let stand.

The purpose of pre-welding is to weld the scattered tabs on the stacked core package together to facilitate the next process.