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Customized service available
DLX
Bright
ISO9001/ CE/ROHS
10kg
10-25 days
Battery,Power,Industry,Energy
One Side Pure Cu, One Side Pure Ni
Product Description
Our Copper Ni Clad Composite Sheet is a specialized bimetallic material with one side pure copper and one side pure nickel, developed for demanding battery interconnects. Through advanced roll-bonding technology, it creates a strong metallurgical bond that merges copper’s exceptional electrical and thermal conductivity with nickel’s excellent weldability and corrosion resistance.
This copper nickel clad sheet significantly reduces internal resistance and heat generation in battery packs while enabling reliable spot, ultrasonic, or laser welding on the nickel surface. It is the preferred choice for lithium-ion battery interconnects, EV battery modules, energy storage systems, and high-drain power tool applications.
Ultra-High Conductivity for Battery Performance: Delivers 3–4× higher electrical conductivity than pure nickel, minimizing voltage drop, I⊃2;R losses, and heat buildup in high-current battery interconnects.
Optimized Dual-Side Design: Pure copper side maximizes current carrying capacity and heat dissipation; pure nickel side ensures easy and strong spot welding without damaging the copper core.
Global Express Delivery: Partnered with top-tier couriers to ensure 7-20 day door-to-port or door-to-door fulfillment worldwide.
Certified Traceability: Digital MTCs and compliance documentation are provided instantly upon dispatch for every wholesale order.
Specification
Attribute | Specification |
|---|---|
Availability | In Stock / Ready to Ship |
Material Structure | Bimetal: Pure Nickel (Ni) on Pure Copper (Cu) |
Bonding Interface | Permanent Metallurgical Fusion (Zero Delamination) |
Dispatch Time | Within 24-48 Hours for Stock Items |
Shipping Time | 7-20Business Days (Global Express) |
Conductivity | ≥ 85% IACS (Optimized for Power Transmission) |
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 | - | 99.90 min | 0.005 max | - | 0.003 max |
Property | Pure Nickel (Ni) | Pure Copper (Cu) | Ni-Cu Bimetal (2:8) |
|---|---|---|---|
Density (g/cm³) | 8.89 | 8.96 | ~8.94 |
Conductivity (% IACS) | ~22 | 100 - 101 | 85 - 90 |
Thermal Conductivity (W/m·K) | 90.7 | 390 - 400 | ~325 |
Bond Strength (MPa) | - | - | ≥ 150 |
Features & Applications
Exceptional electrical conductivity far superior to pure nickel, reducing resistance and improving battery efficiency
Outstanding thermal conductivity for effective heat management in battery packs and modules
Excellent weldability on the nickel side (spot, ultrasonic, laser welding) while the copper side handles high current loads
Strong, permanent metallurgical bond resistant to delamination under mechanical and thermal stress
Good corrosion resistance and oxidation protection from the nickel layer
Customizable thickness ratios, dimensions, and tempers for battery manufacturing needs
Lithium-ion battery (LIB) negative electrode tabs and terminals
Battery interconnects and busbars for electric vehicles (EV) and hybrid vehicles
High-current interconnects in energy storage systems (ESS) and power banks
Battery packs for power tools, drones, e-bikes, and consumer electronics
Precision electronic connectors and lead frames requiring high conductivity and weldability
Thermal management components and high-reliability current collectors in battery modules
DLX Advantage
CHANGZHOU DLX ALLOY CO, LTD was established in 2002 and has got ISO9001 International Quality Management System Certificate and SGS Certificate. Our factory is professional in researching and producing special alloy material. From melting, drawing, heat treatment, finishing and testing .We offer nickel-based, copper-based, and iron-based alloys, including super alloy, welding materials, anti-corrosion alloy, precision alloy, FeCrAl alloy, NiCr alloy, CuNi alloy, thermocouple and etc, in the form of wire, strip, ribbon, bar, tube, plate.
DLX Alloy is a pioneering force in the development of transition materials for the global electrification revolution. With a 12,000 m² facility focused on the advanced metallurgical bonding of dissimilar metals, we provide the high-performance interconnects required for next-generation energy storage and mobility. Our commitment to the battery industry extends beyond material supply; we partner with our clients to optimize their stamping and welding processes, reducing waste and enhancing the total efficiency of battery pack assembly.
FAQ
A: Pure nickel has relatively low conductivity (~22% IACS). Our copper nickel clad sheet combines a high-conductivity copper core with a nickel welding surface, delivering much lower resistance, less heat generation, and higher current capacity—critical for modern high-drain battery packs.
A: Yes. It is widely used for lithium battery tabs, interconnects, and busbars in electric vehicles, energy storage systems, and high-power applications where both high conductivity and reliable welding are essential.
A: Absolutely. We offer flexible Cu/Ni ratios (higher copper content for maximum conductivity) along with custom total thickness, width, length, and temper to perfectly match your battery interconnect requirements.
A: The sheet features a strong metallurgical bond produced by advanced roll-bonding. It maintains integrity during stamping, welding, and repeated charge-discharge cycles without risk of delamination.
