Lithium battery termination tape
Lithium Battery Termination Tape is a specialized adhesive tape designed for insulating and securing the terminals of lithium-ion battery cells. It provides protection against electrolytic corrosion, mechanical stress, and electrical short circuits.
✔ High-Temperature Resistance – Withstands 130°C–250°C (short-term), crucial for soldering and battery operation .
✔ Electrolyte Resistance – Resists lithium battery electrolytes (e.g., LiPF₆) without degradation 17.
✔ Strong Adhesion – Peel strength ranges from 300g/25mm to 750g/25mm, ensuring secure bonding to PP/PE materials .
✔ Electrical Insulation – Dielectric strength >3 kV, preventing short circuits .
✔ No Residue – Clean removal without leaving adhesive traces.
Common Materials & Structures
1. Base Films:
◦ PP (Polypropylene) – Most common, balances cost and performance
◦ PET (Polyester) – Higher mechanical strength (e.g., 137 N/25mm tensile) .
◦ Polyimide (PI) – Used for extreme heat resistance (up to 260°C) .
2. Adhesives:
◦ Rubber-Based – High initial tack, ideal for PP/PE substrates .
◦ Acrylic (Modified) – Better aging resistance and solvent tolerance .
◦ Polyurethane (PU) – Emerging in sol-gel coatings for enhanced durability.
PET substrate
Taking PET/PET film as the substrate, it is coated with electrolyte-resistant glue and can be rolled directly.
It is used to fix the termination part of battery cells; lithium battery steel shell and soft package protection.
| NO. | Material description | Total thickness（mm） |
|---|
| LB22PT |
Electrolyte resistant adhesive | 0.022 |
| LB30PT | Electrolyte resistant adhesive | 0.053 |
PP substrate
Taking PP film as the substrate, it is coated with electrolyte-resistant glue and can be rolled directly.
It is used to fix the termination part of battery cells; lithium battery steel shell and soft package protection.
| NO. | Material description | Total thickness（mm） |
|---|
| LB30PP | Electrolyte resistant adhesive | 0.03 |
| LB45PP | Electrolyte resistant adhesive | 0.045 |
PI substrate
Taking PI film as the substrate, it is coated with electrolyte-resistant glue and can be rolled directly.
It is used to fix the termination part of battery cells; lithium battery steel shell and soft package protection.
| NO. | Material description | Total thickness（mm） |
|---|
| LB30PI | Electrolyte resistant adhesive | 0.03 |
| LB50PI | Electrolyte resistant adhesive | 0.05 |
