Battery & New-Energy Tapes: Key Functional Materials Safeguarding Cells and Modules

1. Introduction

As electric vehicles and energy-storage systems move toward higher energy density, higher voltage and faster charging, the safety and reliability demands on batteries keep rising. Industrial tapes have evolved from auxiliary materials into key functional components inside cells, modules and packs — providing insulation, fixation, cushioning, thermal management, flame retardancy and traceability.

2. Main Types of Battery Tapes

· Cell termination tape — high-temperature PET/PI, electrolyte-resistant; secures tabs and cell ends.

· High-temperature tape (green / blue film, PI) — 120–200°C; process protection, tab and wire-harness wrapping.

· Cell wrapping & separator tape — insulates and absorbs swelling stress, stabilizing the stack.

· Module banding & structural-fixation tape — replaces mechanical fasteners to hold cells and busbars.

· Thermal-conductive & insulating film (PET insulation film, thermal adhesive) — combines insulation with heat dissipation.

· Tab tape and copper / aluminum foil tape — conductivity, welding and insulation protection.

· Marking & traceability tape (QR-code battery tape) — unique per-cell identification on the line.

3. Key Performance Requirements

Electrical insulation and voltage withstand; electrolyte resistance; high/low-temperature and weather endurance (-40 to 150°C); UL94 flame-retardant rating; stable peel and holding force; low outgassing and high cleanliness; dimensional stability and clean precision die-cutting.

4. Typical Applications

EV/HEV power-battery cells and modules, energy-storage systems (ESS), 3C polymer batteries, e-bikes and portable power stations.

5. Manufacturing & Quality

In-house formulation and coating, precision slitting, laser coding and specialty die-cutting under cleanroom conditions; outgoing tests cover peel force, dielectric withstand, insulation resistance, flame retardancy and aging. Thickness, color, die-cut shape and OEM packaging are fully customizable.

6. Conclusion

Battery tape is a "small material, big safety." Backed by 23 years of adhesive expertise, Yufeng delivers integrated insulation, fixation, cushioning and thermal solutions for cells, modules and packs — helping customers improve battery safety and production consistency.