Lithium ion Separator 25 μm PP Base Film Ceramic Coated

M-PEC series ceramic-coated lithium ion separator is fabricated of PP base film, and its surface is coated with a nano-scale Al2O3 layer. After special chemical printing treatment, the Al2O3 material is printed on the surface of the base film, which significantly improves the high-temperature stability of lithium-ion batteries and enhances battery safety. M-PEC series products are one of the safest and most durable battery separator solutions for high-power performance lithium-ion batteries.  

Benefits of 25 μm lithium ion separator

 

• Low TD/MD shrinkage reduces internal shorting.
• Uniform pore structure with high chemical & thermal stability.
• High porosity for excellent high-rate performance.
• The ceramic coating layer provided superior high-temperature melt integrity.
• Offers exceptional safety and longevity for energy applications.

  Primary Applications • Consumer electronics batteries such as notebooks, mobile phones, and digital cameras (mainly pouch type of cell) • High safety and high-frequency charge batteries for electric vehicles(large cell package) • Fast charging and discharging batteries for electric storage systems (large cell package) • Other types of cells(e.g., cylindrical)   Typical Properties  

Basic Film Properties	Unit of Measure	Typical Value
Base Film Thickness	μm	25
Ceramic Coating Thickness	μm	4
Gurley (JIS)	Seconds/100ml	300±80
Porosity(calculated)	%	43.5±3
TD Shrinkage @ 105℃ / 1 hours	%	≤3
MD Shrinkage @ 105℃ / 1 hours	%	0
TD Tensile Strength	Kg/cm²	≥120
MD Tensile Strength	Kg/cm²	≥1200
Puncture Strength	Grams Force (gf)	≥300
Shutdown Temperature	°C	165±2
Melting Temperature	°C	≥170

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