Polyester terminal film tape is widely used for insulating and protecting lithium or nickel batteries, cadmium batteries. The peeling force is moderate, the unwinding force is constant, and it can run smoothly on the automatic production line. Polyester film tape has excellent acid and alkali resistance and electrolyte resistance, and can be used for fixing, protecting, insulating and connecting lithium, nickel and cadmium batteries. It can also be used for packaging or bundling electronic components such as batteries, capacitors and transformers. Use a polyester stop film as a base, then apply a solvent based acrylic adhesive. It has excellent acid or alkaline performance and is also resistant to electrolytes.