EV & BESS Battery Safety: Advanced Thermal Vent Blankets

Vent blankets sit on top of the battery pack or module and perform three core functions in response to a thermal runaway event: 

1. Thermal insulation: Prevent extreme heat from reaching adjacent cells and passenger areas.  

2. Mechanical resistance: Resisting the kinetic blast force, gases and particles emitted from the burning battery cell.  

3. Controlled venting: Engineered rupture points in the vent blanket control the path of thermal energy, gases and particles. This can be used to aid their dissipation and release. 

Whilst vent blankets are effective throughout the entire duration of a battery cell burn, they are especially critical for the first 15 seconds when the kinetic release of pressure, gas, and particulate matter reaches peak intensity. 

Designing thermal management components for high-voltage battery packs requires balancing thermal performance, dielectric strength, weight, and ease of assembly. 

Leveraging our extensive experience in developing and manufacturing multi-layer thermal cell barriers and thermal management solutions, our technical team engineer bespoke thermal vent blankets tailored to your pack layout. 

• Bespoke Multi-Functional Components: Multi-layer lamination of advanced thermal management materials to suit specific battery systems to provide additional functionality such as electrical isolation and dielectric resistance.  

• Designed for Assembly: Customised dimensions, assembly aids for manual and automated application and high tolerance consistency facilitate fast and efficient assembly.  

• End-to-end partner: We collaborate directly with your engineering team to translate your requirements into production-ready high-volume components. 

Developed at our IATF 16949-certified facility in collaboration with leading OEMs and Tier-1 suppliers, our thermal management solutions are built to meet rigorous safety standards and are adopted across electric vehicle ranges.