多层复合结构PP干法单向拉伸膜，可有效降低由于单层膜缺陷造成的安全隐患。

孔径尺寸一致性好，孔径分布均匀，保证了锂电池的安全性能和循环性能。

具有孔径曲折度低，透气性好和耐高温耐氧化的特点。

更适合应用于动力型和储能型电池。

Multi-layers separator can efficiently reduce the possibility of safety hazard and markedly improve the battery safety and cycle performance. Advanced technology can ensure the pore sizes uniformity and well distributed on separator. High porosity, high air-permeability, low pore sinuosity, good heat resistance, is suitable for high rate discharging of the Electric Vehicle Li-ion battery.