Custom Color Highland Barley Paper - 180°C High-Temp Resistance, 0.08mm-0.3mm Thickness for 18650/21700/26650/32650 Battery Insulation

Price Negotiable
Price: 1-1000USD/Negotiable
MOQ: 100pcs
Delivery Time: 5-8 working days
Brand: XWELL
Product Description
Custom Color Highland Barley Paper for Battery Insulation
This high-performance insulation paper features natural highland barley fiber construction with pre-applied adhesive backing, designed specifically for cylindrical lithium battery applications including 18650, 21700, 26650, and 32650 cells.
Key Advantages
Custom Color Options
Available in red, blue, green, black, white, or custom brand colors for visual sorting and error reduction during assembly.
High Temperature Resistance
Withstands continuous operation at 180°C and short-term exposure up to 220°C, exceeding standard PET or kraft paper performance.
Strong Adhesive Performance
High-tack acrylic adhesive provides secure bonding to battery casings, resisting peeling under vibration and temperature cycling.
Eco-Friendly Material
Made from renewable highland barley fiber - halogen-free, non-toxic, and RoHS/REACH compliant.
Space-Saving Design
0.08mm–0.3mm thickness range optimizes space utilization in compact battery pack designs.
Technical Specifications
Specification 18650 Cells 21700 Cells 26650 Cells 32650 Cells
Cell Size Compatibility 18mm × 65mm 21mm × 70mm 26mm × 65mm 32mm × 65mm
Adhesive Peel Strength ≥0.5N/cm (to aluminum) ≥0.5N/cm (to aluminum) ≥0.6N/cm (to aluminum) ≥0.6N/cm (to aluminum)
Dielectric Strength ≥10kV/mm ≥10kV/mm ≥12kV/mm ≥12kV/mm
Standard Thickness 0.1mm / 0.15mm 0.1mm / 0.15mm 0.15mm / 0.2mm 0.15mm / 0.2mm
Standard Form Roll (50m, 20mm width) or sheets (20mm×70mm) Roll (50m, 24mm width) or sheets (24mm×75mm) Roll (50m, 28mm width) or sheets (28mm×70mm) Roll (50m, 34mm width) or sheets (34mm×70mm)
Application Scenarios
  • Consumer Electronics: 18650 battery packs for power banks, laptops, and flashlights
  • Power Tools: 21700/26650 packs for cordless drills and grinders
  • Electric Mobility: 26650/32650 packs for e-scooters and electric bikes
  • Energy Storage: 32650 packs for solar storage systems
Customization Options
Customization Item Available Options
Color Any Pantone color (minimum order: 5 rolls)
Dimensions Roll width: 10mm–100mm; Pre-cut sheet size with ±0.1mm precision
Thickness 0.08mm–0.3mm range for insulation/spacing requirements
Adhesive Type Standard acrylic or silicone adhesive for extreme environments
Quality Assurance
  • Certifications: RoHS, REACH, and UL 94 V-0 flame retardant
  • Batch Testing: Heat resistance, adhesive peel strength, and insulation performance
  • Lead Time: Standard colors 2-3 days; Custom colors 5-7 days
  • Warranty: 6-month quality guarantee with free color samples and test rolls
Get Customized Solutions
Contact us today for detailed quotes, color matching assistance, and technical support for your specific battery pack requirements.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company GUANGDONG XWELL TECHNOLOGY CO., LTD.
Location Room 316, Building 3, No. 801, Qiaoxing Avenue, Xiaoluo Village, Shatou Street, Panyu District, Guangzhou
Contact Person Sammy Qin

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