In the global new energy lithium battery industry, including power batteries, energy storage batteries and portable lithium battery systems, sealing and safety protection are the core guarantees for stable operation and long service life of batteries. Lithium battery silicone sealing foam is a professional protective component specially developed for lithium battery assembly, targeting the unique operating characteristics and strict safety requirements of lithium batteries, integrating high-standard sealing, flame retardancy, shock absorption and anti-corrosion functions. Tengye supplies high-performance lithium battery silicone sealing foam, fabricated with battery-grade silicone raw materials and precision foaming technology, to provide all-round safety protection for lithium battery packs, modules and shells, and effectively eliminate potential hazards such as water ingress, vibration damage and fire risks.
Battery-Grade Silicone Material & Specialized Foaming Craft
Our lithium battery silicone sealing foam adopts imported high-purity silicone raw materials, with a halogen-free, low-smoke and non-toxic environmental protection formula, specially optimized for lithium battery application scenarios. We adopt advanced closed-cell foaming process to form a uniform and dense porous internal structure, balancing soft flexibility, high resilience and sealing performance, and avoid material defects that may damage lithium battery cells and circuits.
This professional silicone foam features a wide operating temperature range from -60℃ to 230℃, maintaining stable physical properties even under the long-term heating of lithium battery operation or extreme low-temperature environments, without hardening, cracking, softening or deformation. It has excellent chemical resistance, effectively resisting corrosion from battery electrolyte, organic solvents, acid and alkaline substances, and also possesses outstanding UV resistance, ozone resistance and aging resistance, suitable for long-term use in vehicle-mounted, outdoor and industrial lithium battery scenarios. All products comply with RoHS 2.0, REACH, UL 94 V-0 and other international certifications, fully meeting the strict safety and environmental protection standards of the lithium battery industry, with authoritative third-party test reports (SGS/Intertek) available for verification.
Core Performance Advantages for Lithium Batteries
Our lithium battery silicone sealing foam breaks through the limitations of traditional sealing and cushioning materials, with targeted performance optimization to meet the high-standard protection needs of lithium batteries, ensuring the safety and stability of battery systems:
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High-Level Waterproof & Dustproof: The dense closed-cell structure reaches IP67-IP68 protection rating, effectively blocking rainwater, moisture, dust and sediment from invading lithium batteries, preventing short circuits, corrosion and capacity attenuation of internal cells and circuit boards caused by moisture intrusion.
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Ultra-High Flame Retardancy: Meets UL 94 V-0 top-level flame retardant standard, self-extinguishing immediately after leaving the fire, no molten dripping and no toxic gas release, effectively blocking the spread of fire and greatly reducing the fire safety risks of lithium batteries.
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Excellent Shock Absorption & Cushioning: The porous foamed structure efficiently absorbs vibration and impact generated during vehicle driving, equipment transportation and operation, reducing stress on lithium battery shells and internal modules, preventing structural looseness and cell damage.
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Low Compression Set & Long-Lasting Resilience: Boasts exceptional rebound performance, with a compression set of ≤5% after long-term compression, retaining tight fitting and sealing effect under sustained assembly pressure, avoiding sealing failure caused by permanent deformation.
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Battery-Friendly & Non-Corrosive: The material is neutral and non-corrosive, will not react with lithium battery cells, shells and circuit components, and will not cause damage or performance degradation to the battery during long-term use.
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Easy Installation & High Compatibility: Light weight, soft texture and good fit, can be closely attached to irregular gaps and curved surfaces of lithium batteries, compatible with automated assembly lines and manual installation, improving battery assembly efficiency.
Main Application Scenarios
Our lithium battery silicone sealing foam is widely used in various lithium battery products with high safety and protection requirements, covering multiple core fields of the new energy industry:
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New Energy Vehicle Power Lithium Batteries: Sealing and cushioning of passenger car, commercial vehicle and electric bus power lithium battery packs, modules, shell gaps and wiring harness ports, adapting to harsh vehicle-mounted vibration and temperature fluctuation environments.
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Energy Storage Lithium Battery Systems: Sealing protection of household energy storage, industrial & commercial energy storage and large-scale wind-solar energy storage lithium battery cabinets and packs, suitable for indoor and outdoor energy storage equipment.
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Portable & Industrial Lithium Batteries: Sealing and shock absorption of industrial power tools, military equipment, medical devices and other portable lithium battery packs, meeting high-standard safety and durability requirements.
Custom OEM/ODM Service
We provide comprehensive personalized customization solutions to match diversified lithium battery structures and performance needs, supporting personalized R&D testing and large-scale mass production:
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Specification & Shape Customization: Customize thickness (1mm-20mm), density, hardness, color and size; support die-cutting, molding and special-shaped processing based on 2D/3D drawings or physical samples.
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Performance Optimization: Adjust material formula to enhance flame retardancy, temperature resistance, waterproofing and corrosion resistance; optional self-adhesive backing and surface treatment to meet lithium battery assembly needs.
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Rapid Prototyping: Deliver customized samples within 7-12 days for lithium battery fitment and performance testing, with timely adjustments according to customer feedback.
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Stable Mass Production: Support small-batch trial production and large-scale continuous production, with complete quality traceability to ensure consistent product quality and on-time supply.
Precautions for Use
To ensure the performance and service life of lithium battery silicone sealing foam, and give full play to its sealing and protection effects, please abide by the following guidelines during installation and use:
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Before installation, thoroughly clean the bonding surface of lithium battery shells and components to keep it dry, smooth, free of oil, dust, burrs and impurities, ensuring a tight fit between the foam and the battery surface.
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Control the compression ratio reasonably during installation, generally controlled at 30%-50%, avoid excessive compression to prevent permanent deformation of the foam, which will affect sealing, shock absorption and flame retardant performance.
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Store the product in a cool, dry and ventilated environment, avoid long-term exposure to strong sunlight, high-temperature heat sources and open flames, and keep away from flammable, explosive and corrosive chemicals to prevent premature aging.
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Select the appropriate product specifications, thickness and flame retardant grade according to the actual application scenario, lithium battery structure and industry safety standard requirements.
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During transportation and installation, avoid sharp scratches and heavy pressure on the foam, so as not to damage the foam structure and affect its normal performance.
Strict Quality Control System
We adhere to the principle of "safety first, quality supreme", implementing a full-process strict quality control system for lithium battery silicone sealing foam, ensuring each batch of products meets industry safety and performance standards:
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Raw Material Inspection: 100% full inspection of silicone raw materials, verifying flame retardancy, temperature resistance, environmental protection index and battery compatibility before production.
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In-Process Monitoring: Real-time control of foaming, molding and processing parameters to ensure uniform pore structure, accurate dimensions and no defects such as bubbles, burrs and cracks.
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Finished Product Testing: Conduct comprehensive tests including waterproofing, flame retardancy, compression set, temperature cycle, aging resistance and battery compatibility, issuing complete test reports and certification documents for each batch.
Tengye: Your Trusted Lithium Battery Sealing Partner
At Tengye, we focus on the R&D, production and customization of high-performance lithium battery silicone sealing foam, relying on professional technology, strict quality control and intimate service, to provide safe and reliable sealing and cushioning solutions for global lithium battery customers. We are committed to improving the safety, stability and service life of lithium batteries, and becoming your long-term trusted partner in the new energy battery industry. Contact us today to get a free quotation, customized sample and professional technical support!
