In the new energy power battery and energy storage battery industry, battery modules serve as the core working unit, and their sealing and protection directly affect the safety, stability and service life of the entire battery pack. As a key sealing component for battery module assembly, battery module foam seals are specially designed to fit module gaps, shell joints and wiring positions, effectively isolating external hazards and ensuring stable operation of internal cells and circuits. Tengye provides high-performance battery module foam seals, made of premium silicone foam and precision-molded, to deliver all-round protection against moisture, dust, vibration and high temperature for battery modules.
Premium Silicone Foam Material: Tailored for Battery Module Scenarios
Our battery module foam seals are fabricated with high-purity, battery-grade silicone foam raw materials, adopting closed-cell foaming process to achieve a balance of soft flexibility, high resilience and reliable sealing. We offer customizable material grades, including automotive-grade, industrial-grade and UL-certified flame-retardant grade, all formulated to meet the strict safety, environmental and durability requirements of the lithium battery industry.
This specialized silicone foam features ultra-wide temperature resistance ranging from -60℃ to 230℃, maintaining stable elasticity and sealing performance without hardening, cracking, deformation or performance degradation under long-term battery heating or extreme low-temperature environments. It boasts excellent chemical resistance, resisting corrosion from battery electrolyte, organic solvents and acidic alkaline substances, as well as superior anti-aging properties against UV rays and ozone. All materials are halogen-free, non-toxic and low-smoke, complying with RoHS 2.0, REACH and UL 94 V-0 flame retardant standards, with authoritative third-party test reports (SGS/Intertek) available for verification.
Precision Structural Design: Perfect Fit for Battery Module Assembly
We combine professional foaming craftsmanship and precision molding technology to design foam seals that perfectly adapt to diverse battery module structures, covering flat gaps, irregular joints, flange edges and wiring harness ports. Our technical team conducts in-depth cooperation with battery manufacturers, customizing seals for square-shell battery modules, cylindrical battery modules and soft-pack battery modules to realize gapless fitting and full sealing coverage.
Key design highlights include: uniform closed-cell structure with consistent density and thickness, avoiding uneven stress and sealing failure during long-term use; low compression set (≤5% after long-term compression), retaining tight sealing resilience even under sustained assembly pressure; soft and compliant texture that fits complex module surfaces without scratching battery cells or shell components; strict dimensional accuracy (±0.1mm) to match module assembly clearances, supporting customized shapes, thicknesses and profiles to fit various module models.
Core Performance Advantages: Comprehensive Protection for Battery Modules
Our battery module foam seals break through the limitations of traditional gaskets, delivering multi-dimensional performance to solve core pain points of battery module protection and ensure long-term safe operation:
-
High-Grade Waterproof & Dustproof: Reaches IP67-IP68 protection rating, effectively blocking rainwater, moisture, dust and sediment from invading battery modules, preventing short circuits, corrosion and capacity attenuation of internal cells.
-
Top-Tier Flame Retardancy: Meets UL 94 V-0 strict flame retardant standard, self-extinguishing immediately after leaving the fire, no molten drips or toxic gas release, greatly enhancing the fire safety of battery modules and reducing potential safety hazards.
-
Excellent Shock Absorption & Cushioning: The porous foamed structure efficiently absorbs vibration and impact generated during vehicle driving, equipment transportation and operation, reducing stress on battery modules and preventing loose connections or structural damage.
-
Long-Lasting Durability: Resists extreme temperature cycles, chemical corrosion and environmental aging, maintaining stable performance for 8-10 years, reducing the frequency of seal replacement and battery module maintenance.
-
Easy Installation & High Compatibility: Lightweight and flexible, compatible with automated assembly lines and manual installation, suitable for various battery module shells (aluminum alloy, plastic, steel) with no chemical corrosion to contact surfaces.
Main Application Scenarios
Our battery module foam seals are widely used in various battery module scenarios with high protection demands, covering multiple fields of the global new energy industry:
-
New Energy Vehicle Power Batteries: Sealing for passenger car, commercial vehicle and electric bus power battery modules, adapting to harsh vehicle-mounted vibration, temperature fluctuation and complex operating environments.
-
Energy Storage Battery Systems: Sealing and shock absorption for household energy storage, industrial & commercial energy storage and large-scale wind-solar energy storage battery modules, suitable for indoor and outdoor energy storage equipment.
-
Industrial & Special Batteries: Sealing protection for industrial power battery modules, military battery modules and special-purpose energy storage modules, meeting high-standard safety and protection requirements.
Custom OEM/ODM Service: Tailored to Your Battery Modules
We provide full-chain customized solutions to match diversified battery module structures and performance requirements, supporting personalized R&D testing and large-scale mass production:
-
Size & Shape Customization: Customize thickness (1mm-20mm), length, width, hardness and density; support die-cutting, molding and special-shaped processing based on 2D/3D drawings or physical samples.
-
Performance Optimization: Adjust foam formula to enhance flame retardancy, temperature resistance, waterproofing and resilience; optional self-adhesive backing, surface treatment and closed-cell/open-cell structure customization.
-
Rapid Prototyping: Deliver customized samples within 7-12 days for module fitment and performance testing, with timely adjustments to meet assembly and protection requirements.
-
Stable Mass Production: Support small-batch prototype production and large-volume continuous production, with complete quality traceability to ensure consistent product quality and on-time supply.
Strict Full-Process Quality Control
We implement a rigorous, battery industry-oriented quality control system to ensure every batch of battery module foam seals meets international safety and performance standards:
-
Raw Material Screening: 100% full inspection of silicone foam raw materials, verifying purity, flame retardancy, temperature resistance and environmental compliance before production.
-
In-Process Monitoring: Real-time control of foaming, molding and cutting parameters to ensure uniform structure, accurate dimensions and no defects (bubbles, burrs, deformations).
-
Finished Product Testing: Conduct waterproof, flame retardant, compression resilience, temperature cycle and aging resistance tests, issuing complete test reports for each batch.
Tengye: Your Trusted Battery Sealing Partner
At Tengye, we stick to the core tenet of "Quality First, Safety-Oriented", focusing on the R&D, production and customization of high-performance sealing components for the new energy battery industry. Our battery module foam seals integrate advanced foaming technology and professional customization capabilities, providing reliable, long-lasting sealing protection for battery modules and escorting the safe and stable operation of global new energy battery systems. Contact us today to get a free technical consultation, customized sample and exclusive quotation!
