1. Taking the mechanism of core gas bulge and liquid leakage as the research and development point, the surface of the metal strip developed has a special corrosion resistant coating. At the same time, the imported CPP adhesive and the CPP layer of the inner layer of the aluminum film have good heat sealing performance, which has an excellent solution to the problems of gas bulge and night leakage at the pole ear.

2. Excellent electrolyte resistance and HF resistance.

3. Good bonding performance with metal surface and aluminum plastic film.

4. The high melting point of the insulation layer effectively prevents the formation of short circuit between the aluminum plastic film and aluminum foil.

5. The pole ear produced by imported material and special processing technology has strong corrosion resistance, leakproof liquid and stable conductive performance.