* High thermal conductivity, low thermal resistance
* Excellent surface wettability and resilience
* Excellent flame retardant
* Multiple thickness selection, wide application range


Item |
Typical Data |
Test Method |
Standard color |
Grey |
Visual |
Density (g/cm3) |
1.9 |
ASTM D792 |
Thickness (mm) |
0.5~5.0 |
ASTM D374 |
Hardness (Shore OO) |
30~70 |
GB/T 531.1-2008 |
Tensile Strength(KPa) |
≥100 |
GB/T 528-2009 |
Elongation at break (%) |
≥25 |
GB/T 528-2009 |
Thermal conductivity (W/m·k) |
1.5 |
ASTM D5470 |
Flame Retardant Rating |
V-0 |
UL94 |
Breakdown Voltage(kV/mm) |
>8 |
ASTM D149 |
Volume resistivity(Ω·cm) |
≥1.0×10^14 |
ASTM D257 |
Compressibility |
>50% |
GB/T 20671.2-2006 |






















Volsun presents the 400x200 Thermal Pad Lithium Battery Thermal Pad High Temperature Thermal Pad 3mm Silicone Adhesive Pads — a high-performance thermal management solution engineered for demanding battery systems and high-temperature electronics. This product description outlines the features, applications, innovations, and technical advantages of the Volsun 400x200 thermal pad while emphasizing its role as a lithium battery cooling pad, a high-temp thermal interface, a silicone thermal adhesive, and a 3mm thermal pad to meet rigorous thermal management needs
Product Overview
The Volsun 400x200 Thermal Pad Lithium Battery Thermal Pad High Temperature Thermal Pad 3mm Silicone Adhesive Pads is designed specifically for modern lithium battery packs and high-temperature electronic assemblies. As a lithium battery cooling pad, this 400x200 thermal pad offers consistent and reliable heat transfer for battery modules, ensuring temperature uniformity and prolonged operational life. As a high-temp thermal interface, the pad withstands elevated temperatures without degradation, making it suitable for applications where thermal stability is critical. The silicone thermal adhesive formulation provides robust adhesion, electrical isolation, and conform ability to uneven surfaces, and the 3mm thermal pad thickness balances thermal conductivity and mechanical compliance for effective heat dissipation
Key Features
- Optimized for lithium battery cooling pad applications: engineered surface area and thermal conductivity for efficient heat transfer across battery cells and modules
- High temperature stability as a high-temp thermal interface: maintains performance in elevated temperature environments experienced during fast charging, high C-rate discharge, or thermal runaway mitigation tests
- Silicone-based thermal adhesive: the silicone thermal adhesive matrix ensures long-term adhesion to cell casings, heat spreaders, and enclosures while providing dielectric protection and vibration dampening
- Precision 3mm thermal pad thickness: the 3mm thermal pad thickness delivers an ideal compromise between thermal conduction path length and mechanical compliance, ensuring consistent contact on irregular surfaces
- Large-format 400x200 sizing: the 400x200 thermal pad dimensions enable use across large battery modules or multiple smaller cells stacked together, reducing assembly complexity and improving thermal management uniformity
- Cut-to-fit adaptability: the 400x200 thermal pad can be trimmed to match pack layouts and component placements, allowing scalable deployment across battery modules and electronic stacks
- Low thermal resistance and high thermal conductivity: formulated to serve as an efficient high-temp thermal interface between heat-generating components and heat sinks or housing structures
- Stable under mechanical stress: the silicone thermal adhesive maintains bond strength under thermal cycling and mechanical vibration common to electric vehicle, energy storage, and industrial applications
Applications
The Volsun 400x200 Thermal Pad Lithium Battery Thermal Pad High Temperature Thermal Pad 3mm Silicone Adhesive Pads addresses a wide range of thermal management needs:
- Battery packs and modules: use as a lithium battery cooling pad to manage heat in electric vehicle packs, energy storage systems, and portable battery modules
- Power electronics: act as a high-temp thermal interface between power semiconductors, converters, inverters, and heat sinks to ensure reliable thermal conduction
- Industrial equipment: integrate as a silicone thermal adhesive interface in high-temperature industrial electronics where robust adhesion and thermal transfer are required
- Consumer electronics: apply as a 3mm thermal pad in devices with constrained thermal budgets that require a compliant material to bridge gap tolerances
- Renewable energy systems: deploy as a lithium battery cooling pad in battery storage racks and micro grid installations where thermal regulation is critical for safety and longevity
Innovation and Design Advantages
Volsun’s design philosophy for this 400x200 thermal pad centers on innovation in material science and practical deployment. The silicone thermal adhesive matrix is engineered to retain viscosity and adhesion properties across wide temperature ranges, ensuring longevity and consistent thermal conduction. As a high-temp thermal interface, this pad leverages silicone polymers with thermally conductive fillers that create a stable thermal pathway while preserving electrical insulation. The 3mm thermal pad thickness was selected after extensive testing to provide the best compromise between gap-filling capability and thermal resistance for typical battery module assemblies
By offering a large 400x200 thermal pad size, Volsun reduces the number of seams and adhesive interfaces in large battery packs, enhancing overall thermal uniformity and simplifying assembly workflows. Tailoring the silicone thermal adhesive formulation ensures compatibility with common battery module materials such as aluminum heat spreaders, polymeric casings, and cell canisters. The result is a product that functions equally well as a dedicated lithium battery cooling pad and as a versatile high-temp thermal interface in other demanding environments
Technical Specifications and Performance
- Dimensions: 400 mm x 200 mm standard sheet size, customizable to specific pack geometries and production needs
- Thickness: 3mm thermal pad standard thickness for balanced thermal and mechanical performance
- Thermal conductivity: optimized for rapid heat transfer to enable efficient use as a lithium battery cooling pad and as a high-temp thermal interface in power electronics
- Operating temperature range: engineered to function reliably in elevated temperatures found in fast-charge and high-load scenarios
- Dielectric strength: silicone thermal adhesive offers electrical insulation while enabling thermal conduction, making it suitable for close-proximity applications involving battery cells and power electronics
- Mechanical compliance: the 3mm thermal pad thickness provides conform ability to uneven surfaces, improving interface contact area and reducing thermal hotspots
- Longevity: stable under thermal cycling and mechanical vibration; silicone thermal adhesive resists degradation and maintains adhesion and thermal properties over long service intervals
Installation and Handling
Using the Volsun 400x200 Thermal Pad Lithium Battery Thermal Pad High Temperature Thermal Pad 3mm Silicone Adhesive Pads simplifies thermal management installation. The silicone thermal adhesive backing adheres readily to cell cans, heat spreaders, and housing surfaces, allowing the pad to act as both a thermal conductor and a mechanical stabilizer. As a lithium battery cooling pad, it is critical to maintain full surface contact; therefore, apply pressure during assembly to ensure adhesion and conformal contact. The sheet can be scored and trimmed using standard cutting tools to produce multiple 3mm thermal pad sections tailored for individual cells or module segments. For best results when deployed as a high-temp thermal interface, ensure mating surfaces are clean and free of oils, dust, or contaminants before applying the silicone thermal adhesive pad
Safety and Compliance
Volsun formulates the silicone thermal adhesive with electrically insulating fillers to protect against shorts while enabling effective heat transfer, making it suitable for lithium battery cooling pad applications where electrical isolation is required. The high-temp thermal pad is designed to withstand thermal stress without releasing hazardous byproducts and is compatible with standard battery pack manufacturing and safety protocols
Why Choose Volsun
Selecting the Volsun 400x200 Thermal Pad Lithium Battery Thermal Pad High Temperature Thermal Pad 3mm Silicone Adhesive Pads ensures you have a reliable, high-performance thermal management component optimized for lithium battery cooling pad applications and other high-temperature interfacing needs. Volsun’s focus on material innovation and practical application delivers a silicone thermal adhesive product that is resilient, thermally efficient, and easy to integrate into production workflows. Whether you need a 3mm thermal pad for bridging irregular gaps in battery modules or a high-temp thermal interface for power electronics, Volsun’s large-format 400x200 thermal pad provides a cost-effective and technically robust solution
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