KLS High Temperature Polyimide Tape

KLS High Temperature Polyimide (PI) Tape is a silicone-adhesive, polyimide film tape engineered for electrically insulating, sealing, and mechanically securing components during lithium battery and battery pack assembly. The PI backing provides robust dielectric performance and dimensional stability, while the silicone pressure-sensitive adhesive delivers reliable bonding to metals and polymer surfaces commonly used in cell and pack construction.

Principle & Working Mechanism

Polyimide film acts as the primary insulating barrier, reducing the risk of short circuits by separating conductive parts (e.g., tabs, busbars, can edges, and weld zones). The silicone adhesive wets and anchors to surfaces, maintaining adhesion during thermal cycling and handling, while allowing clean application for production workflows.

Key Features & Specifications

• Backing: Special PI film
• Adhesive: Silicone
• Colour: Amber
• Heat resistance: −40 to +150 °C
• Breakdown voltage: 5–6 kV (grade dependent)
• Peel adhesion (N/25 mm): 5–6
• Tensile strength (N/25 mm): 50–75
• Standard width: 2–500 mm
• Standard length: 33 / 50 / 66 / 100 m
• Grades (total thickness): 0.035 mm (TOB-0035KLS), 0.042 mm (TOB-0042KLS), 0.055 mm (TOB-0055KLS), 0.060 mm (TOB-0060KLS)
  
  

Typical Applications (Battery & Electrochemistry Workflows)

• Tab and edge insulation for pouch, prismatic, and cylindrical cells
• Sealing, holding, and protection in aluminium/steel casing and soft-packed batteries
• Masking and insulation during pack build steps (fixture holding, cable and busbar isolation)
  
  

Why Source via ScienceGears

ScienceGears supports researchers and engineers with application-matched consumables for battery testing, cell assembly, and electrochemistry labs—pairing materials like PI tapes with complementary solutions such as battery cyclers/energy test stations, potentiostats, and in-situ/operando electrochemical cells for end-to-end experimental workflows.