Bostik and Polytec PT launch new thermal conductive adhesives (TCA) for e-mobility solutions

Bostik and Polytec PT launch new thermal conductive adhesives (TCA) range to accelerate innovation in battery design

As a result of their collaboration, Bostik and Polytec PT are launching a new range of thermal conductive adhesives (TCA) to address the challenge of thermal management in the latest Cell-to-Pack (CTP) battery design for e-mobility solutions.

Thermal management is vital to ensuring the operating temperature of EV-Battery systems remains between 20°C and 40°C for optimum battery life and performance. Thermal interface materials (TIM) such as TCAs are essential to battery design to ensure a robust thermal connection between the battery/cell environment and the cooling elements. With the trend towards fast charging for e-mobility, the importance of thermal management – and TIMs – is increasing significantly.

The new XPU TCA 202 is a two-component, polyurethane-based adhesive specifically designed for heat dissipation in battery pack assemblies. It perfectly tackles the challenge to balance thermal conductivity with high mechanical strength while maintaining good levels of flexibility thanks to high elongation.

Its low-monomer content allows it to meet the most stringent regulations and enables easy product handling without specific training.

At a practical level it is also fast and easy to process through automatic mixing, dosing and dispensing equipment. It adheres well to most substrates without using a primer, and cures at room temperature.

The launch follows the recent announcement on 17 May of the planned acquisition of Polytec PT by Arkema.

Achim Wiessler, Managing Director of Polytec PT, believes this will be the first in a new series of innovations for battery design: “Polytec PT has proven expertise in TIMs which are key to enable fast charging of the battery and efficient dissipation of the heat. The combined strength and expertise of both companies opens a new chapter for engineers in battery systems’ design.”

Guillaume Desurmont Senior Vice President at Bostik, says the launch of the new TCA is the first outcome of a fruitful collaboration between Bostik and Polytec PT for several months: “With Polytec PT’s expertise in thermal conductive materials and Bostik’s expertise in structural polyurethane adhesives, we strengthen our offer with innovative TIM solutions to our customers in the EV battery market.”

About Bostik, an Arkema company

Bostik, a subsidiary of the Arkema Group and a global player in specialty adhesives for the construction, consumer and industrial markets, develops innovative and multifunctional sealing and bonding solutions that have been shaping our daily lives for over 130 years. With annual sales of 2 billion euros, a presence in more than 50 countries, and 6,000 employees, the company is committed to meeting the major ecological, energy and technological challenges through its innovations. It is focused on continuous improvement and operational excellence to meet the expectations of its customers and partners.