In the global new energy lithium battery sector, lithium battery packs stand as the core power and energy storage units for electric vehicles, energy storage systems, portable power equipment and more. Their sealing performance, shock absorption capacity and safety protection directly determine the operational stability, service life and safety of the entire battery system. Facing harsh working conditions such as temperature fluctuations, mechanical vibration, moisture erosion and potential fire risks, lithium battery pack silicone sealing foam emerges as a critical customized protective component. Tengye specializes in developing and manufacturing high-performance lithium battery pack silicone sealing foam, adopting battery-grade raw materials and precision foaming technology, to deliver all-round, long-lasting protection for lithium battery packs and meet the strict industry standards for safety and durability.
Battery-Grade Silicone Raw Material & Professional Foaming Process
Our lithium battery pack silicone sealing foam is produced with imported high-purity battery-grade silicone raw materials, formulated with halogen-free, low-smoke and non-toxic environmental protection ingredients, and optimized specifically for the operating characteristics of lithium battery packs. We adopt advanced closed-cell foaming technology to form a uniform, dense and delicate porous internal structure, which perfectly balances soft flexibility, high resilience and reliable sealing performance, eliminating material defects that may cause damage to battery cells and internal circuits.
This professional silicone foam boasts an ultra-wide operating temperature range of -60℃ to 230℃, maintaining stable physical properties even under long-term high-temperature operation of lithium batteries or extreme low-temperature environments, without hardening, cracking, softening or deformation. It features excellent chemical resistance, effectively resisting corrosion from battery electrolyte, organic solvents, acid and alkaline substances, as well as 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 authoritative certifications, fully meeting the strict safety and environmental protection requirements of the lithium battery industry, with third-party test reports from SGS, Intertek and other institutions available for verification.
Core Performance Advantages Tailored for Lithium Battery Packs
Our lithium battery pack silicone sealing foam is targeted at the core pain points of lithium battery pack protection, breaking through the limitations of traditional sealing and cushioning materials, with fully optimized performance to meet the high-standard protection needs of lithium battery packs and ensure the safe and stable operation of battery systems:
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High-Level Waterproof & Dustproof Protection: The dense closed-cell structure achieves IP67-IP68 high protection rating, effectively blocking rainwater, moisture, dust and sediment from invading the interior of lithium battery packs, preventing short circuits, corrosion and capacity attenuation of internal cells and circuit boards caused by moisture ingress, adapting to humid and outdoor harsh environments.
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Top-Tier Flame Retardancy: Meets UL 94 V-0 the highest flame retardant standard, self-extinguishing immediately after leaving the fire, with no molten dripping and no release of toxic and harmful gases, effectively blocking the spread of fire and greatly reducing the fire safety risks of lithium battery packs.
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Excellent Shock Absorption & Cushioning: The unique porous foamed structure can efficiently absorb vibration and impact generated during vehicle driving, equipment transportation and installation, reducing stress on lithium battery pack shells and internal modules, preventing structural looseness and cell damage.
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Low Compression Set & Durable Resilience: Possesses 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 during long-term use.
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Battery-Friendly & Non-Corrosive: The material is neutral and non-corrosive, with no chemical reaction with lithium battery cells, shells and circuit components, ensuring no damage or performance degradation to the battery during long-term contact use.
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Easy Installation & High Compatibility: Light in weight, soft in texture and good in fit, it can closely attach to irregular gaps and curved surfaces of lithium battery packs, compatible with automated assembly lines and manual installation, effectively improving battery assembly efficiency.
Main Application Scenarios
Our lithium battery pack silicone sealing foam is widely used in various lithium battery pack 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 Battery Packs: Sealing and cushioning for passenger cars, commercial vehicles, electric buses and other power lithium battery pack shells, module gaps, wiring harness ports and upper and lower cover flanges, adapting to harsh vehicle-mounted vibration and temperature fluctuation environments.
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Energy Storage Lithium Battery Packs: Sealing protection for household energy storage, industrial & commercial energy storage and large-scale wind-solar energy storage lithium battery packs and cabinets, suitable for indoor and outdoor energy storage equipment scenarios.
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Portable & Industrial Lithium Battery Packs: Sealing and shock absorption for industrial power tools, military equipment, medical devices, outdoor emergency power supplies and other portable lithium battery packs, meeting high-standard safety and durability requirements.
Custom OEM/ODM Customization Services
We provide comprehensive personalized customization solutions to match the diversified structures and performance needs of lithium battery packs, 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 dimensions according to customer needs; support die-cutting, molding and special-shaped processing based on 2D/3D drawings or physical samples of lithium battery packs.
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Performance Optimization: Adjust material formulas to enhance flame retardancy, temperature resistance, waterproofing and corrosion resistance; optional self-adhesive backing and surface treatment to meet the assembly needs of lithium battery packs.
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Rapid Prototyping: Deliver customized samples within 7-12 days for lithium battery pack fitment and performance testing, with timely adjustments according to customer feedback to meet actual application requirements.
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Stable Mass Production: Support small-batch trial production for R&D and large-scale continuous production for project delivery, with complete quality traceability to ensure consistent product quality and on-time supply.
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 pack silicone sealing foam, ensuring each batch of products meets the high standards of the lithium battery industry:
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Raw Material Inspection: 100% full inspection of silicone raw materials, verifying flame retardancy, temperature resistance, environmental protection indicators and battery compatibility before entering the production process.
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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 performance tests including waterproofing, flame retardancy, compression set, temperature cycle and aging resistance, 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 pack silicone sealing foam, relying on professional technology, strict quality control and intimate service, to provide safe, reliable and durable sealing and cushioning solutions for global lithium battery customers. We are committed to improving the safety, stability and service life of lithium battery packs, and becoming your long-term trusted partner in the new energy lithium battery industry. Contact us today to get a free quotation, customized sample and professional technical support!
