| abstract |
The invention discloses a protective tape for an aluminum shell of a lithium battery and a preparation method thereof. The preparation method comprises the following steps: mixing polyacrylic acid resin, high temperature resistance accelerator, color masterbatch, aluminum hydroxide powder, hardener and solvent in a reaction kettle Stir evenly to obtain a mixture for blue adhesive layer; apply the mixture for blue adhesive layer on one side of the inner PET by spin coating, and dry to obtain an outer blue adhesive layer; apply the blue adhesive layer with The mixture is coated on the other side of the inner layer PET by spin coating, and dried to obtain an inner blue adhesive layer; one side of the inner blue adhesive layer is laminated with a single-sided release film, rolled, and cured to obtain lithium Protective tape for battery aluminum case. The protective tape has excellent high temperature resistance, acid and alkali corrosion resistance, insulation flame resistance and electrolyte resistance. It is applied to the coating of square aluminum shells of new energy power batteries, and its composite structure has a great effect on the surface of battery aluminum shells. good protection. |