Lithium-ion Full Battery Manufacturing Process Training--Coating

1.Electrode Shedding

Negative electrodes are prone to powder shedding

Main reason：

1.Formula issues,insufficient bonding strength leading to material loss

2.Excessive baking temperature,rapid solvent evaporation resulting in SBR

bleeding.Insufficient adhesive between the material and the current collector leading to material loss

 

 

2.Coating Scratch

Scratches on the coating are often manifested as one or more unpainted marks on the coating

Main reasons：1.Ineffective particle removal during sieving,and these particles can block the coating blade. Need a feeler gauge to clear the blockage；2.After coating for a period of time, due to the appearance of slurry dry material, the coating blade is blocked.