Now, based on customer interest and feedback, Freudenberg has diversified the DIAvent® portfolio further with two new components offering unique features:

• The DIAvent® maxFlow, which features an open degassing vent – rather than one that opens gradually – providing a full degassing rate near the opening pressure threshold and an activation level that can be adjusted between 50 and 200 mbar. 
• The DIAvent® Hybrid, which combines permanent bidirectional pressure equalization with emergency degassing, with the added ability to mount the aluminum cover of the vent directly and firmly to the battery housing.

Both new components are suitable for use in high-energy-density battery systems. These additions broaden the DIAvent® scope of solutions, giving automakers and battery manufacturers greater flexibility and tailored functionality across a wide range of operating conditions.

Robust Sealing for Busbar Applications

Busbars, which are essential for energy transfer in battery systems, are notoriously challenging to seal effectively due to their irregular geometries and the harsh conditions they are exposed to, such as aggressive fluids and temperatures. Freudenberg’s groundbreaking media-tight busbar sealing technology, suitable for both rectangular and round busbars, eliminates the need for additional assembly steps, significantly reduces leak risk, and enhances long-term durability. Designed for both low- and high-voltage applications, the solution can withstand temperatures of -40°C up to 200°C, delivering superior resistance to thermal cycling and aggressive media, helping lower total cost of ownership for EV systems.

Fluid Connectors and Solenoid Valves for Battery Thermal Management

As EV batteries grow in capacity and charging speeds accelerate, thermal management becomes increasingly critical. Conventional cooling systems often fall short in ultra-fast charging scenarios. To address this, Freudenberg’s advanced fluid connectors are engineered to accommodate a range of cooling fluids and thermodynamic demands, maintaining optimal cell temperatures and extend battery life. The fluid connectors help to deliver a system-level cost advantage through tolerance compensation, enabling simplified and efficient assembly processes, combining several functions into a single component.  Freudenberg’s connectors are tailored for high loads and variable system requirements, bridging the gap between larger batteries and higher performance. Freudenberg’s solenoid valves precisely regulate fluid and air flow in automotive and battery systems by converting electrical signals into controlled mechanical movement.

“Our customers need agile and experienced partners who can rapidly deliver optimized materials and technologies as new challenges emerge,” said Tania Hagel, Global Vice President, OEM Sales, Freudenberg Sealing Technologies. “Our deep expertise in design and materials allows us to deliver tailored solutions that support electric mobility and accelerate the adoption of next-generation propulsion systems.”

Learn more about Freudenberg's EV solutions here.

Looking for a particular sealing solution for your application? Reach out to Gallagher Fluid Seals today and our expert engineers can connect you with an in-stock or custom fitted solution.

The original article can be found here.