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Adhesive tape solutions for EV battery cell wrapping applications

Dielectric cell wrapping films are emerging as an electrical insulation solution for the arcing challenges within EV battery packs. The high voltages dispersed by cells can move to other components in the pack, resulting in shortened battery life and safety issues. 

In addition to providing electrical insulation, cell wrapping films offer corrosion resistance, a reliable bonding surface and desired aesthetics. And due to their thinness, consistency and durability, these films are frequently preferred to spray coatings.


Pressure-sensitive tape cell wrapping films offer many advantages

To help engineers and other members of the value chain solve for arcing, Avery Dennison offers a range of cell wrapping film products:

  • Double-layer PET facestock options for dielectric protection redundancy

  • Single-layer PET facestock options for lower cost

  • Blue, yellow and gray color options for various aesthetic requirements

  • Advanced acrylic pressure-sensitive adhesive that meets cell producer performance expectations by passing peel, shear and long-term aging requirements

  • Options made in the U.S. for Inflation Reduction Act compliance

EV battery cell wrapping application

Featured products

ES 1521 Blue

ES 1521 Blue

A double-layer construction featuring a 1 mil clear biaxially oriented polypropylene terephthalate (BOPET) with blue pigmented acrylic adhesive. The adhesive provides electrolyte resistance/compatibility. This product is intended as electrical insulation for prismatic and cylindrical cell wrapping for energy storage and electric vehicles.

Learn more about ES 1521 Blue here
Key benefits
  • Double layer facestock for dielectric redundancy
  • Clear face stock with Blue adhesive for application indication and aesthetic requirements
  • Acrylic adhesive with excellent aging resistance and shear strength
  • Double 1 mil PET facestock provides electrical insulation (>8 kV AC Breakdown Voltage)
  • Made in US for Inflation Reduction Act compliance and local North American cell production
ES 1421 Blue

ES 1421 Blue

2 mil clear biaxially oriented polypropylene terephthalate (BOPET) with blue pigmented acrylic adhesive. The adhesive provides electrolyte resistance/compatibility. This product is intended as electrical insulation for prismatic and cylindrical cell wrapping for energy storage and electric vehicles.

Learn more about ES 1421 Blue here
Key benefits
  • Clear facestock with blue adhesive for application indication and aesthetic requirements
  • Acrylic adhesive with excellent aging resistance and shear strength
  • 2 mil PET facestock provides electrical insulation (>8 kV AC Breakdown Voltage)
  • Made in US for Inflation Reduction Act compliance and local North American cell production
ES 1421 Yellow

ES 1421 Yellow

2 mil clear biaxially oriented polypropylene terephthalate (BOPET) with yellow pigmented acrylic adhesive. The adhesive provides electrolyte resistance/compatibility. This product is intended as electrical insulation for prismatic and cylindrical cell wrapping for energy storage and electric vehicles.

Learn more about ES 1421 Yellow here
Key benefits
  • Clear facestock with blue adhesive for application indication and aesthetic requirements
  • Acrylic adhesive with excellent aging resistance and shear strength
  • 2 mil PET facestock provides electrical insulation (>8 kV AC Breakdown Voltage)
  • Made in US for Inflation Reduction Act compliance and local North American cell production

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If you would like to learn more about our tapes for EV battery applications or have a question, contact us.

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