PHA is the core material of lithium battery packaging. It has excellent performance such as puncture resistance and impact resistance. It can protect other substrates, effectively resist accidental impact, protect battery safety, and improve battery capacity. sPHA is a high-performance BOPA film specially developed for black soft-pack lithium battery aluminum-plastic film with a specific process and special formula. It has excellent color uniformity, impact resistance, puncture resistance and wear resistance, etc. It can be effectively Reduce the processing procedures of aluminum-plastic film enterprises and improve the yield.