- Freudenberg Cell Caps 2 reduces battery cell cap height by up to 30%.
- The new design improves gas tightness, insulation, and mechanical durability.
Freudenberg Introduces Cell Caps 2 for Advanced Battery Cell Design
Freudenberg Sealing Technologies, a business group of Freudenberg SE, has announced Cell Caps 2, the latest generation of battery cell cap technology developed for both prismatic and cylindrical battery cells. The company will showcase the innovation during Battery Show Europe 2026 in Germany, where it will also display cell-to-cell barriers, venting foam mats, and selected battery thermal management solutions. The new development is designed to simplify battery cell architecture while improving overall performance and packaging efficiency.
Integrated Design Improves Battery Cell Performance
Cell Caps 2 incorporates the terminal directly into molded rubber positioned within the base plate of the cell cap. During manufacturing, liquid elastomer is injected into the gap between the poles and the base plate, creating a permanent bond between the individual components. This integrated construction reduces the number of separate parts required within the assembly while delivering improved sealing performance and structural integrity.
The design offers several technical advantages, including enhanced gas tightness, stronger mechanical robustness, and improved electrical insulation. By reducing component complexity, the technology can support more efficient battery manufacturing processes while maintaining the functional requirements demanded by modern battery systems used across various mobility applications.
Key Benefits of Cell Caps 2 Technology
- Integrated terminal and molded rubber construction
- Reduced component count within the cell cap assembly
- Improved gas tightness and sealing performance
- Enhanced mechanical robustness
- Better electrical insulation characteristics
- Compatible with prismatic and cylindrical battery cells
Technical Advantages of Freudenberg Cell Caps 2
| Feature | Benefit |
|---|---|
| Integrated Terminal Design | Lower component count |
| Liquid Elastomer Bonding | Permanent component connection |
| Improved Gas Tightness | Enhanced sealing performance |
| Electrical Insulation | Improved safety characteristics |
| Reduced Cell Cap Height | Up to 30% more packaging efficiency |
Reduced Height Supports Greater Battery Capacity
One of the notable advantages of Cell Caps 2 is its ability to reduce the overall height of the cell cap by as much as 30%. The resulting space savings can be utilized to increase the active volume available within the battery cell. This can contribute to higher battery capacity and extended operating time, making the solution particularly relevant as battery manufacturers continue seeking greater energy density and improved vehicle range.
The technology highlights the ongoing focus on component-level innovation within battery systems. By optimizing a critical cell component, Freudenberg SE aims to support battery manufacturers in achieving better performance, reliability, and packaging efficiency without compromising essential safety and durability requirements.
Frequently Asked Questions
What is Freudenberg Cell Caps 2?
Freudenberg Cell Caps 2 is a next-generation battery cell cap technology designed for prismatic and cylindrical battery cells. It integrates the terminal into molded rubber within the cell cap base plate using liquid elastomer bonding. This approach reduces component count while improving gas tightness, mechanical robustness, and electrical insulation. The technology also enables a lower cell cap profile, helping battery manufacturers optimize internal packaging space and potentially increase battery capacity and operating duration.
How does Cell Caps 2 improve battery performance?
Cell Caps 2 improves battery performance by reducing the height of the cell cap by up to 30%, creating additional space within the battery cell. The integrated design enhances sealing effectiveness, structural durability, and insulation performance while simplifying component architecture. These benefits can support higher battery capacity, improved operational reliability, and more efficient battery system packaging, making the technology valuable for advanced battery applications across the automotive and mobility sectors.
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