Why EV Battery Manufacturers Prefer Custom PI Insulation Tape for Lithium Cell Assembly

Thermal runaway risk and poor insulation are critical concerns for EV battery makers when selecting internal fixed tapes. Conventional acrylic adhesive tape will soften and fall off above 130°C during battery thermal cycling, causing short-circuit hidden trouble in finished battery packs.

Our factory Lvzhimei supplies high-temperature silicone PI insulation tape widely adopted by Southeast Asian new energy OEMs for cell tab wrapping and module insulation. One Thailand lithium battery manufacturer replaced imported German tape with our customized products in 2025, cutting their raw material purchase cost by 27% while keeping insulation performance unchanged at -40℃~280℃ working range.

We support customized thickness, adhesion strength and color for battery production, from small trial order (minimum 50m rolls) to bulk container shipment. All raw materials are halogen-free to comply with global new energy environmental regulation.