Aluminum Plastic Film for Lithium Battery

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It is key material of soft packed lithium battery. The single battery is sealed after assembly and forms battery, thus protecting the internal battery.

 

Specifications 

  • Thickness:152μm, higher requirements for production process
  • Barrier property: higher than that of ordinary aluminum plastic film
  • Good puncture resistance
  • Good electrolytestability
  • High temperature insulation resistanceto prevent the short circuit of the aluminum foil by the metal electrode.

 

Layers from outside (Shiny) to inside (Mat)

 

Polyamide (JIS Z1714): 0.025mm (+-0.0025mm)
Adhesive (Polyester-polyurethane): 4-5 g/m2
Aluminum foil (JIS A8079,A8021): 0.040mm (+-0.004mm)
Adhesive (Urethane-free Adhesive): 2-3 g/m2
Polypropylene: 0.040mm (+-0.004mm)
Thickness:152μm
Width400mm
Length10m
Surface qualityMat finish
PinholesSubject to the applicable aluminum foil standard
Impurity1mm or less in diameter
Fish Eye2mm or less in diameter (clear),1mm or less in

diameter  (colored)

Molding Depth≥5.0mm
Electrical InsulatingGood
Hot Sealing Coniditon180-190°C
Moisture Vapor / O2 Transmission Rate200ppm / 5 years
Laminate StrengthNylon/Al   more than 2N/15mm Al/CPP   more than

5N/15mm

Heat Seal StrengthMore than 22.5N/15mm wide at

200℃ x 0.2Mpa x2 sec by TMAX heat sealing

Solvent RetentionLess than 5mg/m2
AppearanceWithin the sample of the limit
Slip FactorCPP/CPP   less than 1.0




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