Key Takeaways
- Avery Dennison has launched a new portfolio of EV battery venting materials to enhance safety against thermal runaway.
- The materials feature fire-barrier coatings and pressure-sensitive adhesives, designed for module and pack-level venting holes.
- These innovative solutions support efficient designs that improve safety and assembly in electric vehicle battery packs.
New Solutions for Enhanced EV Battery Safety
Avery Dennison Performance Tapes has unveiled an innovative EV Battery Venting Materials Portfolio aimed at mitigating the risks associated with thermal runaway in electric vehicle (EV) batteries. This new range includes both single- and double-coated anisotropic filmic tapes outfitted with proprietary fire-barrier coatings and pressure-sensitive adhesives (PSA) dedicated to bonding.
EV battery manufacturers employ venting strategies at various levels, including cells, modules, and packs to enhance safety. The venting solutions from Avery Dennison are designed to be applied to the venting holes at the module or pack level. These specialized tapes allow for rapid burn-through that facilitates venting through a defined channel. On one side, the tapes ensure extensive flame resistance, preventing the spread of flames and hot gases to nearby cells, thereby reducing the risk of fire. Specifically, the exterior side of the film can withstand flame exposure for less than four seconds, while the adhesive side endures for over 15 seconds, allowing a significant delay against the propagation of heat and fire.
Max Van Raaphorst, the Business Development Manager for eMobility, Automotive & Energy Storage at Avery Dennison Performance Tapes North America, stated, “Our new venting solutions are engineered to provide differential performance to flame exposure, which can lead to very elegant emergency venting strategies.” This comment highlights the intention behind these innovative products that are meant to enhance overall safety.
The versatility of these tapes allows for their integration with various other materials aimed at thermal runaway mitigation. This synergistic approach fosters efficient designs that save space and promote effectiveness. Moreover, these developments align with market demands for safer, more efficient battery packs that are easier to assemble, which is a key consideration for manufacturers within the rapidly evolving EV market.
Through this product launch, Avery Dennison reaffirms its commitment to improving the safety and efficiency of EV battery packs, contributing to the overall reliability of electric vehicles. The advent of these venting materials represents an important advancement in addressing the challenges posed by electric vehicle battery safety, paving the way for continued innovation in the automotive and energy storage sectors.
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