Ceramic Coated Separator 7 μm PE membrane for Li-ion Battery

7LP+3 ceramic coated separator is fabricated of 7μm thickness PE 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. 7LP+3 separators are safe and durable battery separator solutions for high-power performance lithium-ion batteries.

 

Benefits of 7 μm Ceramic Coated 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

 

Film Properties	Unit of Measure	Typical Value
Overall Thickness	μm	10±1.5
Base Film Thickness	μm	7±1
Ceramic(Al2O3) Layer Thickness	μm	3±1
Gurley (JIS)	Seconds/100ml	170±40
Porosity(calculated)	%	40±4
TD Shrinkage @ 130℃ / 1 hours	%	≤3
MD Shrinkage @ 130℃ / 1 hours	%	≤3
TD Tensile Strength	Mpa	≥130
MD Tensile Strength	Mpa	≥130
Puncture Strength	Grams Force (gf)	≥350
Finished Arch	mm/1m	≤2
Static Value	KV	≤3
Moisture	PPM	≤1200
Peel Strength	N/cm	≥0.5

 

Learn more about YOUME lithium ion separator