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Bulk Copper Nickel Clad Metal Sheet Custom for Automotive Battery
High-quality bulk copper nickel clad metal sheet featuring one side pure nickel and one side pure copper. Engineered for automotive battery systems, this Ni-Cu composite sheet combines excellent electrical conductivity with superior weldability and corrosion resistance—ideal for EV battery tabs, terminals, and interconnects.
- Overview
- Applications
- DLX Alloy
- FAQs
- Recommended Products
Product Overview of Copper Nickel Clad Metal Sheet
As the automotive industry in North America and Europe accelerates toward full electrification, the demand for interconnect materials that combine electrical efficiency with high-volume manufacturing reliability has never been greater. DLX’s Bulk Copper-Nickel Clad Metal Sheets are specifically engineered for EV battery busbars and terminal tags. By metallurgically fusing pure nickel and pure copper, we eliminate the high contact resistance of plated materials while providing a dedicated nickel surface for cell welding. Our custom cladding technology allows automotive OEMs to precisely tune the electrical and mechanical properties of their interconnects, ensuring maximum vehicle range and safety. With a 12,000 m² facility optimized for high-volume delivery, we provide the supply chain stability required by major automotive manufacturing hubs in the USA, Germany, and throughout the EU.
Product Features of Copper Nickel Clad Metal Plate Supplier
1.Low IR Efficiency: The high-purity copper core ensures ultra-low internal resistance (IR), reducing heat generation during high-power fast charging and acceleration.
2.Weldability Excellence: The pure nickel surface is optimized for high-speed fiber laser welding, ensuring zero-defect joints with prismatic and cylindrical cells.
3.Unrivaled Bond Integrity: Our metallurgical bonding process ensures no delamination even under the extreme shock and vibration of a vehicle’s 10-year service life.
4.Thermal Cycling Stability: Specifically tested to maintain structural integrity across a -40°C to +125°C temperature range, matching automotive environment specs.
5.Consistency in Bulk: Advanced SPC (Statistical Process Control) ensures thickness and conductivity uniformity across multi-ton production lots.
Physical Properties & Chemical Composition
| Physical Properties | Pure Nickel Layer | Pure Copper Layer | Bimetal (Avg. at 20% Ni) |
|---|---|---|---|
| Density (g/cm³) | 8.89 | 8.96 | ~8.94 |
| Conductivity (% IACS) | ~22 | 100 - 101 | 82 - 88 |
| Thermal Conductivity (W/m·K) | 90.7 | 390 - 400 | ~330 |
| Elastic Modulus (GPa) | 207 | 110 - 128 | 135 - 150 |
| Material Layer | Ni (%) | Cu (%) | Fe (%) | C (%) | S (%) |
|---|---|---|---|---|---|
| Pure Nickel Side | 99.6 min | 0.10 max | 0.10 max | 0.05 max | 0.005 max |
| Pure Copper Side | - | 99.9 min | - | - | - |
Applications of Copper Nickel Clad Sheet Factory
1.High-Voltage Battery Packs: Main distribution busbars for EV battery modules.
2.Cell-to-Cell Connectors: Laser-welded interconnecting tags for cylindrical (21700/46800) and prismatic cells.
3.BMS Components: Transition sheets for Battery Management System sensing leads and grounding points.
4.On-Board Chargers (OBC): Bimetallic heat sinks and power connectors that require high heat dissipation.
5.DC-DC Converters: Precision clad sheets for power distribution units and inverter busbars.
Key advantage：
✔Dual-Metal Synergy: Combines copper's 100% IACS conductivity with nickel’s superior spot-welding reliability.
✔Cold-Rolling Precision: Manufactured using high-precision mills to ensure cladding ratio uniformity within ±2%.
✔Automated Line Compatibility: Burr-free slitting and high flatness ensure zero jams in high-speed automated assembly equipment.
✔Transition Efficiency: Eliminates the need for transitional plating or mechanical clamping, simplifying module design.
⭐Company Intro - DLX Alloy
Changzhou DLX Alloy Co., Ltd. has redefined the supply model for the high-tech electronics and connector industries. Recognizing that market cycles are shrinking, we have moved beyond traditional "made-to-order" manufacturing to an agile, stock-driven supply chain. Our facility integrates large-scale production with a dedicated "Rapid Response Unit" that specializes in small-batch slitting and urgent prototyping. By maintaining a deep inventory of high-purity nickel-clad copper materials, we allow our global partners to reduce their own inventory carrying costs and respond instantly to new design requirements. At DLX, we don't just provide the metallurgical foundations for your connectors; we provide the speed and flexibility required to win in today’s competitive electronics landscape.
Quality & Standards : DLX implements a zero-defect quality system for battery materials. We utilize online ultrasonic testing to ensure 100% bond integrity and automated optical inspection (AOI) for surface defects. All materials are fully compliant with RoHS 3, REACH, and UL standards for electronic insulation and safety.
Forms: sheet, strips, or custom pre-cut tags.
Packaging: Vacuum-sealed anti-oxidation VCI bags inside reinforced wooden crates.
MOQ: 5kg for standard 2:8 ratio stock; 20kg for custom thickness or specific tempers.
Documentation: Full MTC (EN10204 3.1), RoHS compliance certificate, and Bond Strength Report.
FAQs:
Q1: What is the structure of this copper nickel clad metal sheet?
A: It features one side pure nickel and one side pure copper, metallurgically bonded into a single composite sheet. This combines copper’s high conductivity with nickel’s superior weldability and corrosion resistance for automotive battery applications.
Q2: Why is copper nickel clad preferred over pure nickel for automotive battery tabs?
A: Pure nickel has good weldability but relatively high resistance. The copper nickel clad metal sheet offers much higher conductivity (often 3–4× better), lower heat generation, and improved thermal management while retaining excellent spot-welding performance on the nickel side.
Q3: Can the thickness ratio and dimensions be customized?
A: Yes. We supply bulk copper nickel clad metal sheet with fully customizable nickel-to-copper thickness ratios, total thickness, width, length, and temper to meet specific automotive battery design requirements.
Q4: Is this material suitable for high-current EV battery packs?
A: Absolutely. The copper side provides low electrical resistance and efficient heat dissipation, while the nickel side ensures strong, reliable welds—making it ideal for high-drain automotive battery interconnects and tabs.
