Thermal management in EV batteries is facilitated with Lohmann’s new thermally conductive adhesive tape range with a thermal conductivity of up to 2W/mK. Its multifunctional materials product range contains adhesive tape solutions that also offer functions such as damping, sealing, electrical insulation or conductivity as well as a reliable thermal management.
Lohmann’s new DuploCOLL TC (Thermally Conductive) range of acrylic transfer tapes provide a thermal conductivity of up to 2W/mK, tested according to ASTM D 5470. Connected to the cooling or heating element inside the EV battery, the TC tapes help keeping the temperature of the lithium-ion cells between 20 and 35 °C by enabling a homogenous heat-transfer. Additionally, they protect reliably against corrosion and abrasive dust, thus helping to maximize the lifetime of the cells.
The range fulfills flame-retardant requirements according to UL 94 V-0. For short-term usage the portfolio provides heat resistance up to 180°C, while additionally enabling a high electrical insulation with a breakdown voltage of up to 26 kV/mm.
The new TC tapes do not contain silicones, halogens and solvents and provide immediate adhesion even to irregular surfaces. Additionally, these thermal interface materials (TIMs) can compensate component tolerances as well as seal against dust or moisture. In contrast to liquid TIMs, the assembly is clean and easy, no additional processing tools or special storage is needed and due to the customizable format of the tapes (die-cuts), there is a high freedom of design.
They also offer several advantages to silicone gap pads besides eliminating the danger of migrating silicone oil: The tapes are tacky at room temperature and therefore no additional fixation is needed during the assembly. As screws or clamps are not necessary, the adhesive tape solutions are a weight-saving alternative, combining fixation and function in one product.
Lohmann’s thermally-conductive range is available as rolls or customized high-precision die-cuts in thicknesses from 140μm to 2mm. To support seamless integration into automated production processes, different colours are available for better detection by camera or optical sensor systems.
Lohmann is presenting its adhesive tapes for electronics at the Stuttgart Battery Show, 23-25 May, at booth E80 in hall 8.
