News release: Avery Dennison introduces tapes for battery energy storage systems
New product line addresses the three core material challenges in BESS design
PAINESVILLE, Ohio (September 22, 2026) - Today Avery Dennison announced a new portfolio of pressure-sensitive adhesive tapes (PSAs) for battery energy storage systems (BESS). The wide range of functional bonding and protection tapes include adhesives engineered for thermal runaway protection, high-voltage insulation and no-cure assembly.
Battery energy storage systems store electrical energy in rechargeable batteries and release it when the grid or a facility needs it. Most large BESS configurations use lithium iron phosphate (LFP) cells grouped into modules, packs and containerized units, ranging from grid-scale installations down to commercial sites. Inside each unit, PSAs bond and insulate the cells, thermal barriers and connections that keep the system safe and stable.
“Avery Dennison PSA solutions help reduce flammability risks, enhance dielectric protection, and streamline design and assembly,” said Max VanRaaphorst, market manager for Avery Dennison eMobility, Automotive & Energy Storage. As a result, they are vital in simplifying supply chains, increasing BESS safety, and effectively managing budgets and product delivery schedules.”
Thermal runaway protection
Battery energy storage systems face the critical challenge of thermal runaway propagation between cells, which can cascade through entire modules in seconds. Thermal barriers, mica sheets, aerogel pads and ceramic paper are one solution, but these materials are fragile, shed fibers or crumble during handling and assembly. Acrylic- and rubber-based adhesives like those made by Avery Dennison with Flame Tough™ flame-retardant adhesive properties allow multilayer solutions and an ability to manufacture these materials into packs.
Dielectric insulation
BESS modules routinely exceed 1,000V DC, creating arcing risk between cells, busbars, cooling plates and module housings. Electrical insulation failures can trigger short circuits, thermal events and system shutdowns. Volt Tough™ dielectric tape solutions from Avery Dennison provide high-voltage protection throughout battery energy storage systems. Avery Dennison materials and adhesives are tested for breakdown voltage and dielectric strength requirements using GB/T 1408.1-2016 and ASTM D3755 test methods. They offer high dielectric strength at very thin calipers.
Assembly efficiency
BESS manufacturers face aggressive timelines, automation requirements and cost pressures. Material selection directly impacts throughput and total cost of ownership. Unlike liquid adhesives that require mixing, dispensing equipment, and cure time, PSA tapes deliver instant bonding for automated assembly lines. Die-cut precision eliminates waste and enables camera/vision system detection with colored variants. Other benefits include automated assembly compatibility, dimensional precision for tight tolerances, and no volatile emissions (VOCs) or mixing equipment.
Engineering support and technical resources
The Avery Dennison applications engineering team provides material selection guidance, die-cut design optimization and testing support for BESS applications. To learn more about the Avery Dennison line of BESS tapes, visit: battery energy storage systems