21700 Nickel Strips for High-Power Packs
Specialized nickel interconnects for 21700 battery modules. Engineered for EV, E-mobility, and Energy Storage applications. Available in wide-pitch rolls, offset honeycomb tabs, and copper-nickel composites for maximum current handling.
Engineered for Larger Cells & Higher Amps
Wider Pitch & Geometry
Designed with 21.5mm - 23mm spacing to perfectly align with standard 21700 brackets. No more stretching or misalignment during welding.
High Current Capacity
Available in thicker gauges (0.2mm, 0.3mm) and wider profiles to minimize voltage drop in high-drain EV and tool packs.
Offset / Honeycomb
Specialized hexagonal (offset) tabs for high-density packing. Maximizes space efficiency in e-bike downtube batteries.
Copper-Nickel Composite
For extreme currents (100A+), we offer copper busbars with nickel tabs, combining conductivity with easy spot welding.
Certified Purity
We use only N6 grade Pure Nickel (≥99.6%). We provide XRF test reports to prove it's not plated steel.
Scalable Production
From 10 prototype pieces (Laser Cut) to 1 million OEM parts (Precision Stamping). We grow with your project.
Powering Heavy-Duty Applications
Because 21700 cells are the standard for modern EVs and high-capacity storage, our nickel strips are built to withstand vibration, thermal cycling, and high amperage draw.
- Electric Vehicles (EV): Robust busbars for module interconnections.
- Performance E-Scooters: High-discharge strips for rapid acceleration.
- Energy Storage (ESS): Durable connections for solar walls and backup power.
- Garden & Power Tools: Handling high-torque current spikes.
- Medical & Industrial: Reliability for critical power systems.
21700 Strip Specifications
| Configuration | Material Options | Thickness Range | Standard Width | Cell Spacing (Pitch) |
|---|---|---|---|---|
| 2P / 3P Straight | Pure Nickel / Plated | 0.15mm – 0.30mm | 27mm – 48mm | 21.5mm / 22.5mm |
| Offset (Honeycomb) | Pure Nickel N6 | 0.15mm – 0.25mm | Custom | Designed for nesting |
| Single Strip | Pure Nickel / Copper | 0.15mm – 0.50mm | 8mm / 10mm / 12mm | N/A (Continuous Roll) |
| Custom Busbar | Copper-Nickel / Aluminum | 0.5mm – 2.0mm | Laser Cut Custom | Custom CAD Design |
* Custom pitch and thickness available upon request via our Laser Cutting service.
Custom 21700 Interconnect Solutions
Standard rolls don't always fit complex battery pack geometries. We offer full customization services to match your specific BMS layout and housing constraints.
Our Process:
- Design Analysis: Send us your DWG/DXF file or hand sketch. We optimize it for manufacturability.
- Laser Cutting (No Mold): Perfect for 1-5000 pieces. Fast turnaround (2-3 days) with zero tooling cost. Ideal for R&D.
- Hard Tooling (Stamping): For mass production (>10k pieces). We build molds to ensure lowest unit price and high consistency.
- Hybrid Materials: We can produce Copper-Nickel Sandwich tabs for ultra-high current applications (100A+).
Because 21700 cells have higher capacity and often higher discharge rates than 18650s, we recommend a minimum of 0.15mm Pure Nickel. For high-performance packs, 0.20mm is the standard.
Yes, we stock standard offset patterns designed for 21.5mm center-to-center spacing. This is ideal for packing cells tightly in e-bike downtube batteries.
Yes, we manufacture copper-nickel composite strips. The base is copper for conductivity, with a nickel patch or plating for easy spot welding to the cell terminals.
For laser cutting, we have No MOQ (sample orders are welcome). For stamped parts requiring a mold, the suggested MOQ is 5,000 pieces.
Yes, we can send free samples of our standard material (you only pay shipping) so you can verify the purity and test your spot welder settings.
Simply click the "Get a Quote" button below and upload your drawing or describe your requirements. Our engineers will quote you within 24 hours.
Start Your 21700 Project Today
From prototype samples to mass production, we are your reliable factory partner.
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