Targray manufactures polypropylene separators for secondary lithium-ion batteries, featuring micro and nano pores for improved ion transportation. The product offers high mechanical strength, low shrinkage, and enhanced safety through a higher shut down temperature. Key properties include varying thicknesses, porosity, permeability, and break strength tailored for various battery applications.

1. Targray supplies a line of Separators for use in the manufacture of secondary Li-ion batteries. This product
contains micro and nano pores to provide excellent ion-transportation in the battery.
Product Data Sheet
Battery Separator
Polypropylene
Product Properties:
Property PP16 PP20 PP25 PP32 PP40
Thickness 16 ± 2 20 ± 2 25 ± 2 32 ± 2 40 ± 2
Basis Weight (g/m²) 8 ± 2 10.3 ± 2 12.8 ± 2 16 ± 2 20.5 ± 2
Porosity (%) 42 ± 2 42 ± 2 42 ± 2 42 ± 2 42 ± 2
Permeability (s/100 cc) 250 ± 100 300 ± 100 400 ± 100 500 ± 150 650 ± 150
Break Strength (kgf/cm²)
MD ≥ 1100 ≥ 1100 ≥ 1100 ≥ 1100 ≥ 1100
TD ≥ 100 / / ≥ 100 ≥ 100
Break Elongation (%)
MD 30-150 30-150 30-150 30-150 30-150
TD / / / / /
Puncture Strength (g) ≥ 200 ≥ 300 ≥ 300 ≥ 450 ≥ 600
Heat Shrinkage 105°C (%)
MD ≤ 3 ≤ 3 ≤ 3 ≤ 3 ≤ 3
TD ≤ 1 ≤ 1 ≤ 1 ≤ 1 ≤ 1
Shut-Down Temperature (°C) ≤ 150 ≤ 150 ≤ 150 ≤ 150 ≤ 150
Montreal Head Office
18105 Transcanadienne, Kirkland, Quebec H9J 3Z4 Canada
Tel.: +1 514 695 8095 • Fax.: +1 514 695 0593
www.targray.com
PDS Targray Battery Separator PP25 Rev 4.0 22 Dec 2011 | Pg 1 of 1
General Description:
• Advanced PP (polypropylene) separator has a high shut down temperature and excellent mechanical strength suitable
for use in EV batteries and other power cell applications
Key Features & Typical Benefits:
• Higher shut down temperature and melting point for improved safety
• Homogenous pore size and distribution
• High puncture resistance
• Low shrinkage (<4% @ 105º)
• Excellent air permeability of 20-40 Gurley sec, Porosity >40