Adhesive Tapes for EV battery applications
For the EV market, ATP offers customers the opportunity for off-the-shelf solutions or bespoke developments.
Electrical Insulation Films
For Cell wrapping, ATP has developed single-sided self-adhesive PET films with thin adhesive coating weights <20gsm if necessary. These films offer breakdown voltage insulation values >8kV and a CTI (Comparative Tracking Index) of > 600V Moreover, these self-adhesive PET films could be used to electrically insulate other metal parts within the battery module as well. Different product thicknesses and tape colors are available and customer- specific die-cuts can be realized. Double coated films can be combined with other materials, to achieve electrical insulation.
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Thermal Insulation / Barrier material mounting
For Thermal runaway insulation, lightweight double-sided PET- or tissue tapes are offered, these tapes can be coated on both sides with permanent adhesive or one side permanent one side semi-permanent to aid recycling at end of life. Suppliers of thermal runaway systems rely on mica, glass-fib- res, ceramic fibers and other materials protecting and bonding to cells, modules, and battery packs. ATP’s tapes for this application are suitable for rough, uneven surfaces.
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Compression pad bonding
Tapes for installation of intercellular compression pads can be thin adhesive coatings <50gsm to suit individual customer requirements. The benefits of using tapes in such applications are guaranteed coating weight, instantaneous bonding, high suitability for automatic assembly and finally – in contrast to liquid adhesives – they require no curing time.
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Component mounting
For mounting of components within the battery module such as busbars, sensors, cables and absorber fleeces, self-adhesive tapes can support during the application.
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Cell-to-cell bonding
ATP offers dou- ble-sided adhesive tapes for bonding of cell housings within the battery stacking pro- cess (cell-to-cell bonding). Different coating weights and carriers are available.
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