What is High Temperature Polyimide Tape for Lithium Battery?

High Temperature Polyimide Tape, commonly known as Kapton tape, is a heat-resistant adhesive tape widely used in lithium battery manufacturing due to its excellent thermal stability, electrical insulation, and chemical resistance. It is crucial in protecting sensitive components during battery assembly, ensuring safety, reliability, and performance under extreme operating conditions.

Chemical Properties and CAS Number

• Material: Polyimide (Kapton)
• CAS Number: 25038-81-7
• Appearance: Amber-colored film with adhesive backing
• Density: Approximately 1.42 g/cm³
• Thickness: Typically 0.025mm to 0.1mm (customizable)
• Thermal Stability: Stable up to 260°C (500°F), short-term resistance up to 400°C
• Electrical Insulation: Excellent dielectric properties
• Chemical Stability: Resistant to solvents, acids, and bases

Applications of High Temperature Polyimide Tape for Lithium Battery

1. Lithium Battery Cell Assembly

Essential for wrapping cells, terminals, and electrodes, preventing electrical short-circuits and ensuring battery safety during manufacturing.

2. Battery Pack Insulation

Used as insulation for battery packs, ensuring electrical isolation, thermal stability, and mechanical durability in high-temperature environments.

3. Electronic Component Protection

Applied in electronic circuit boards and components within battery management systems (BMS) to protect against thermal and electrical hazards.

4. Thermal Masking

Ideal for masking battery parts during thermal processing, soldering, and welding operations, ensuring precision and cleanliness.

5. Aerospace and Automotive Batteries

Widely utilized in aerospace and automotive battery systems for high-performance applications requiring robust thermal and electrical insulation.

Pricing of High Temperature Polyimide Tape for Lithium Battery

Pricing varies based on thickness, width, adhesive quality, and application-specific requirements:

• Standard Grade: Typically ranges from $5 – $30 per roll
• High-Purity/Specialized Grade: Prices range from $30 – $100 per roll, designed for advanced industrial, automotive, and aerospace battery applications.

Factors Influencing Pricing

• Tape thickness and dimensions
• Adhesive quality and thermal resistance
• Production standards and certifications
• Market demand from lithium battery, automotive, aerospace, and electronics sectors

Conclusion

High Temperature Polyimide Tape is an essential material for lithium battery manufacturing, providing superior thermal stability, electrical insulation, and chemical resistance. Pricing depends on specific performance requirements and quality standards.