Henkel brings new thermal materials to cell-to-pack battery builds

Category: Adhesives & Bonding, Batteries, Components & Technology, Materials, Materials & Manufacturing, Thermal Management

A cutaway graphic illustration of an EV battery pack with the lid raised, showing internal battery cells and orange thermal interface material applied between cells and the cooling structure, representing Bergquist TGF 2030APS thermal gap filler in a battery module assembly.
A cutaway graphic illustration of an EV battery pack with the lid raised, showing internal battery cells and orange thermal interface material applied between cells and the cooling structure, representing Bergquist TGF 2030APS thermal gap filler in a battery module assembly.

Henkel’s Bergquist TGF 2030APS thermal gap filler is designed to dissipate heat from the battery cell stack into the cooling plate, supporting effective thermal management in EV battery module assembly

(Images courtesy of Henkel)

Henkel has launched two new thermal interface materials aimed directly at the growing demands of EV battery thermal management. As battery systems push toward higher energy densities, fast-charging capability, and new pack architectures, the company says these products address both the performance requirements and the production efficiency pressures facing OEMs and battery manufacturers today.

New thermal gap filler targets EV battery thermal management at speed

Bergquist TGF 2030APS is a silicone-free two-component thermal gap filler rated at 1.7 W/mK thermal conductivity. It is designed to channel heat away from the battery cell stack and into the cooling plate within EV battery modules, where effective thermal management is becoming increasingly critical as battery systems evolve.

The product dispenses at a rate exceeding 40 cc/sec, making it practical for high-volume assembly lines. Its silicone-free formulation is suited to sensitive battery applications, and a low compression force reduces the risk of cell damage during assembly. Room-temperature curing removes the need for additional heat in the production process, lowering energy consumption at the manufacturing stage. Henkel says the product also carries a reduced carbon footprint as part of its strategic focus on developing low-emission, more sustainable product solutions.

Thermally conductive adhesive serves cell-to-pack battery designs

Loctite TLB 9270APS is a two-component polyurethane-based adhesive delivering 2 W/mK thermal conductivity. Henkel positions it specifically for cell-to-pack battery architectures, where it combines thermal conductivity with structural bonding and electrical insulation in a single material. The product performs on aluminum and PET film substrates, which are both common in modern battery pack construction.

A working time of 40 to 45 minutes under typical conditions gives production teams assembly flexibility without requiring line changes. The adhesive is solvent-free and formulated to comply with high regulatory and safety standards.

Henkel plans Battery Show Europe showcase in June

Dr. Tobias Knecht, Global Market Strategy Head for E-Mobility at Henkel, said both launches reflect the company’s commitment to delivering thermal interface materials that meet the changing requirements brought by higher-capacity cells and new pack architectures, including cell-to-pack and cell-to-chassis designs. He framed the two products as the latest development in a track record of thermal management innovation for demanding environments.

Henkel will present both materials alongside its broader EV battery portfolio at The Battery Show Europe, running June 9 to 11 at Messe Stuttgart in Germany. Visitors will have the opportunity to discover the technologies first-hand and explore how they fit within next-generation battery assembly processes aimed at safer, higher-performing, and more sustainable electric vehicles.

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