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Polyimide (PI) Tape – 100 m Roll, 0.035 mm Thickness (10–30 mm Width Options) for Battery Cell Assembly

Polyimide (PI) Tape – 100 m Roll, 0.035 mm Thickness (10–30 mm Width Options) for Battery Cell Assembly

https://www.s4r.fr/shop/polyimide-pi-tape-100-m-roll-0-035-mm-thickness-10-30-mm-width-options-for-battery-cell-assembly-119 https://www.s4r.fr/web/image/product.template/119/image_1920?unique=cff4d79

Polyimide (PI) tape is widely used in lithium battery manufacturing for insulating and protecting welding areas in stacked pouch cells and cylindrical cell winding processes.

It prevents welding burrs from penetrating the separator and provides stable insulation under elevated temperatures.

The tape features a polyimide substrate combined with a lithium-resistant adhesive, ensuring chemical compatibility and thermal stability during cell assembly.

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Pouch & Cylindrical Cell Components · Insulation Tape

Polyimide tape for battery cell assembly

Polyimide (PI) tape for insulating and protecting welding areas in stacked pouch cells and cylindrical cell winding. A polyimide film combined with a lithium-resistant adhesive provides stable insulation at elevated temperatures during cell assembly.

0.035 mm
Total thickness
100 m
Roll length
10 → 30 mm
Width options
150 °C
30 min resistance
Key features

Insulation and protection for battery cell assembly

Designed to protect welding areas and provide electrical insulation during pouch- and cylindrical-cell fabrication.

Polyimide film

25 µm polyimide film with a total tape thickness of 0.035 mm.

Lithium-resistant adhesive

Polyimide substrate combined with a lithium-resistant adhesive for battery cell assembly.

Welding-area protection

Helps prevent welding burrs from penetrating the separator during cell assembly.

Temperature resistance

Temperature resistance up to 150 °C for 30 minutes.

Available widths

Five roll widths

All widths share the same 0.035 mm total thickness and 100 m roll length. Select the width according to the cell format and process.

10 mm 15 mm 20 mm 25 mm 30 mm
Product data

Technical specifications

Main specifications of the S4R polyimide insulation tape.

Material Polyimide (PI) film
Adhesive type Lithium-resistant adhesive
Color Brown
Total thickness 0.035 mm
PI film thickness 25 µm
Width options 10 · 15 · 20 · 25 · 30 mm
Roll length 100 m per roll
Temperature resistance 150 °C (30 min)
Application Pouch cell welding insulation / Cylindrical cell tab protection
Applications

Battery cell insulation and welding protection

Intended for insulation and protection during pouch- and cylindrical-cell assembly.

Pouch-cell welding insulation
Used to insulate and protect welding areas in stacked pouch cells.
Cylindrical-cell tab protection
Used for tab protection during cylindrical cell winding and assembly.
Separator protection
Helps prevent welding burrs from penetrating the separator.

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