Avery Dennison proposes using pressure-sensitive adhesive (PSA) tapes as a scalable solution for thermal management in battery packs. These tapes are designed to improve heat transfer, provide electrical insulation, and manage vented gases during thermal runaway events.
The company's Volt Tough tape line utilizes dielectric films to achieve high breakdown voltage at a thickness of 85 µm. This approach reduces conductive thermal resistance by approximately 66% compared to traditional 250 µm powder coatings, allowing for faster heat dissipation.
For thermal runaway mitigation, PSA tapes can be used to laminate insulative materials such as mica or aerogel. These adhesives are engineered to withstand temperatures up to 500 degrees Celsius for short durations, supporting automated assembly processes.
Avery Dennison offers specialized venting tapes for different battery chemistries. For NMC cells, which reach 800–1050 degrees Celsius, tapes focus on flame channeling. For LFP cells, which reach 620–700 degrees Celsius and release hydrogen, the focus is on exhausting non-combusted gases.
The company provides materials that meet UL 94 V-0 flammability standards. Their engineering support includes access to testing facilities and global supply chain integration for battery manufacturers.
