Custom Color Highland Barley Paper with Adhesive – High-Temp
Resistant for 18650/21700/26650/32650 Batteries
When assembling cylindrical lithium battery packs (18650, 21700,
26650, 32650), reliable insulation, heat resistance, and easy
assembly are non-negotiable—yet ordinary insulating papers often
fall short on one or more fronts. Our Custom Color Highland Barley
Paper solves this by blending three key strengths: extreme high-temperature resistance, strong pre-applied adhesive, and customizable colors for visual differentiation. Made from natural highland barley
fiber, it’s not just an insulator—it’s a production-friendly
solution that streamlines assembly, enhances safety, and lets you
match your brand or module identification needs.
1. Core Advantages: Why This Highland Barley Paper Stands Out
| Advantage | Key Benefit for Battery Pack Manufacturers |
|---|
| Customizable Colors | Available in red, blue, green, black, white, or your brand
color—enables quick visual sorting (e.g., 区分 different battery
modules or production batches) and reduces assembly errors. |
| 180℃ High-Temp Resistance | Withstands continuous use at 180℃ (short-term up to 220℃),
outperforming standard PET or kraft paper (≤120℃) and avoiding
insulation breakdown during battery charging/discharging. |
| Strong Adhesive Backing | High-tack acrylic adhesive bonds firmly to battery casings; resists
peeling even under vibration (ideal for e-scooters/EVs) or
temperature cycles (-40℃ to 180℃). |
| Natural & Eco-Friendly | Made from renewable highland barley fiber—halogen-free, non-toxic,
and RoHS/REACH compliant, fitting green energy and consumer
electronics standards. |
| Thin & Space-Saving | 0.08mm–0.2mm thickness saves critical space in compact battery
packs (e.g., power banks, laptop batteries) without compromising
insulation performance. |
2. Technical Specifications (By Battery Cell Type)
| Specification | For 18650 Cells | For 21700 Cells | For 26650 Cells | For 32650 Cells |
|---|
| Compatible Cell Size | 18mm (diameter) * 65mm (length) | 21mm * 70mm | 26mm * 65mm | 32mm * 65mm |
| Material | Natural highland barley fiber + acrylic adhesive | Natural highland barley fiber + acrylic adhesive | Natural highland barley fiber + acrylic adhesive | Natural highland barley fiber + acrylic adhesive |
| Color Options | Custom (red/blue/green/black/white) or standard natural | Same as left | Same as left | Same as left |
| Temperature Resistance | Continuous: 180℃; Short-term: 220℃ | Continuous: 180℃; Short-term: 220℃ | Continuous: 180℃; Short-term: 220℃ | Continuous: 180℃; Short-term: 220℃ |
| Adhesive Performance | Peel strength ≥0.5N/cm (to aluminum); Service temp: -40℃–180℃ | Peel strength ≥0.5N/cm (to aluminum); Service temp: -40℃–180℃ | Peel strength ≥0.6N/cm (to aluminum); Service temp: -40℃–180℃ | Peel strength ≥0.6N/cm (to aluminum); Service temp: -40℃–180℃ |
| Electrical Insulation | Dielectric strength ≥10kV/mm; Volume resistivity ≥10¹⁴Ω·cm | Dielectric strength ≥10kV/mm; Volume resistivity ≥10¹⁴Ω·cm | Dielectric strength ≥12kV/mm; Volume resistivity ≥10¹⁴Ω·cm | Dielectric strength ≥12kV/mm; Volume resistivity ≥10¹⁴Ω·cm |
| Standard Thickness | 0.1mm / 0.15mm | 0.1mm / 0.15mm | 0.15mm / 0.2mm | 0.15mm / 0.2mm |
| Standard Form | Roll (50m/roll, width 20mm) or pre-cut sheets (20mm*70mm) | Roll (50m/roll, width 24mm) or pre-cut sheets (24mm*75mm) | Roll (50m/roll, width 28mm) or pre-cut sheets (28mm*70mm) | Roll (50m/roll, width 34mm) or pre-cut sheets (34mm*70mm) |
3. Application Scenarios
This customizable highland barley paper is tailored for cylindrical
battery packs across industries, where insulation safety and
production efficiency matter:
- Consumer Electronics: 18650 battery packs for power banks, laptops, and
flashlights—thin design fits compact enclosures; custom colors help
distinguish product lines.
- Power Tools: 21700/26650 packs for cordless drills, grinders, and leaf
blowers—high-temp resistance handles heavy-duty discharge heat;
adhesive resists tool vibration.
- Electric Mobility: 26650/32650 packs for e-scooters, electric bikes, and portable EV
chargers—color-coding simplifies module maintenance; moisture
resistance adapts to outdoor use.
- Energy Storage: 32650 packs for home solar storage and industrial backup
power—eco-friendly material aligns with green energy goals;
reliable insulation ensures long-term safety.
4. Customization & Order Details
We offer end-to-end customization to match your exact production
needs—no matter the cell size or color preference:
| Customization Item | Available Options |
|---|
| Color | Any Pantone color (provide color code) or custom brand color;
minimum order for custom colors: 5 rolls |
| Dimensions | Roll width: 10mm–100mm (custom); Pre-cut sheet size: Per your cell
specs (±0.1mm precision) |
| Thickness | 0.08mm–0.3mm (adjustable for insulation/spacing requirements) |
| Adhesive Type | Standard acrylic (high temp) or silicone adhesive (for -60℃–200℃
extreme environments) |
| Packaging | Standard: Moisture-proof bags + cartons (50m/roll); Custom: Small
test rolls (10m/roll) or branded packaging |
5. Quality Assurance & Support
- Certifications: RoHS, REACH, and UL 94 V-0 (flame retardant)—meets global safety
standards for electronics.
- Testing: Each batch undergoes heat resistance, adhesive peel strength, and
insulation performance tests; test reports provided free for bulk
orders.
- MOQ & Lead Time: Standard colors: MOQ 5 rolls (ships in 2–3 days); Custom colors:
MOQ 5 rolls (ships in 5–7 days).
- After-Sales: Free color samples (5cm*5cm swatches) and 1m test rolls; 6-month
warranty for quality issues (e.g., adhesive failure, color fading).
Need help matching the right thickness or color to your battery
pack? Send us your cell layout or brand color code—our team will
recommend the optimal solution. Contact us today for a detailed
quote!
