heat resistance tabs holes rings stickers gaskets for lithium batteries 18650 21700 32700 26700 32140

Heat Resistant Insulation Tabs, Hole Rings, Stickers & Gaskets for Lithium Batteries

High-Temperature Battery Insulation for 18650 / 21700 / 26700 / 32700 Cells

Heat-resistant insulation tabs, hole rings, stickers, and gaskets are essential safety components used in lithium-ion and LiFePO₄ battery pack assembly. These insulating accessories are designed to protect the positive terminal of battery cells from short circuits, heat damage, and welding contact during spot welding and long-term use.

Key Features

🔥 High-temperature resistant material

⚡ Excellent electrical insulation

🛡️ Prevents short circuits at positive terminals

🔧 Designed for spot welding environments

📌 Strong adhesive for secure placement

🟤 Durable, thin, and lightweight design

Compatible Cell Sizes

🔋 18650 lithium battery cells

🔋 21700 lithium battery cells

🔋 26700 lithium battery cells

🔋 32700 lithium battery cells

Applications

🔋 Lithium-ion & LiFePO₄ battery packs

🔋 Cell positive terminal insulation

🔋 EV, e-bike, scooter & UPS batteries

🔋 DIY battery building & professional manufacturing

🔋 Battery repair and refurbishment

Why Use Insulation Rings & Tabs?

These heat-resistant insulation gaskets act as a protective barrier between the battery’s positive terminal and nickel strip. They reduce the risk of accidental short circuits, overheating, and cell damage, improving battery pack safety and lifespan.

Specifications (Typical)

Material: High-temperature insulating fiber / adhesive paper

Color: Brown / Black (varies by type)

Adhesive: Heat-resistant pressure-sensitive adhesive

Form: Rings / Tabs / Stickers / Gaskets

Usage: Lithium battery insulation

Important Note

⚠️ Always use insulation rings on the positive terminal of lithium battery cells during pack assembly. Proper insulation is critical for safety.