Our Lithium Battery Thermal Expansion Tape uses a synthetic resin film base coated with modified acrylic adhesive resistant to battery electrolytes. It offers scratch resistance and excellent conformability. After the cell casing process, the tape expands moderately under heat and electrolyte exposure, filling gaps between the cell and steel shell for a secure bond. This design prevents cell-shell movement during vibrations, reducing risks like short circuits or tab detachment, and enhances battery safety and lifespan. It is ideal for terminal wrapping of high-rate cylindrical lithium battery cells, replacing traditional terminal tapes, and improves impact resistance after electrolyte injection.
1. Excellent heat resistance: Withstands high temperatures, suitable for internal lithium battery applications.
2. Thermal expansion control: Relieves thermal expansion pressure during operation, protecting the battery structure.
3. Excellent insulation performance: Ensures reliable electrical insulation for enhanced battery safety.
4. Chemical corrosion resistance: Resists electrolytes and chemicals, extending service life.
5. Lightweight design: Adds minimal weight, meeting lightweight requirements.
6. Good adhesion: Strong bonding to metal substrates, ensuring secure connection between cells and steel shells.
| Property | Unit | Standard | Inspection Tool | Inspection Method |
| Color | / | Transparent | Visual Inspection | Refer to Standard Sample |
| Backing Thickness | μm | 50±3 | Micrometer Thickness Gauge | GB/T 7125-2014 |
| Total Thickness | μm | 60±3 | Micrometer Thickness Gauge | GB/T 7125-2014 |
| Peeling Force of 180°Steel Plate | N/25mm | ≤3.0 | Tensile Testing Machine | GB/T 2792-1998 |
| Thickness Expansion | % | ≥200 | Fluorinated Bottle,Electrolyte | Soak in Electrolyte at Room Temperature for 0.5h |
| Tensile Strength | N/25mm | ≥10 | Tensile Testing Machine | GB/T 30776-2014 |
* Thermal Insulation: Used for thermal insulation between lithium battery cells to prevent heat transfer and thermal runaway.
* Cell Fixation: Provides secure fixation of battery cells within the module, enhancing structural stability.
* Cushioning Protection: Offers space for thermal expansion, mitigating pressure caused by cell expansion.
* Thermal Management System: Applied in thermal management systems for insulation and heat dissipation, optimizing battery performance.
* Fire Protection: Delays flame propagation under extreme conditions, improving battery safety.
* Module Assembly: Serves as a structural material during module assembly, simplifying processes and enhancing reliability.
GBS Die Cut, as adhesive tape supplier, focuses on the research & development, production and sales of various types of adhesive tapes for different industries and has been authorized as golden distributor of many noted brands for so many years, such as Nomex, Formex, Rogers Poron, 3M, Tesa, and so forth.
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