High purity Nickel 200 and Nickel 201 strips are widely recognized as core materials in modern battery manufacturing and precision welding industries. Both grades are classified as commercially pure nickel with a minimum nickel content of 99.6%, offering a combination of excellent electrical conductivity, corrosion resistance, and mechanical workability.
Nickel 200 (UNS N02200 / DIN 2.4060) is designed for general industrial and electrical applications. It provides reliable conductivity, good strength, and stable forming behavior. Nickel 201 (UNS N02201 / DIN 2.4066) differs primarily in its lower carbon content (≤ 0.02%), which improves material stability under elevated temperatures and reduces the risk of graphite precipitation during welding or heat exposure.
Key characteristics of high purity nickel strip include:
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High electrical conductivity
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Excellent ductility and formability
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Strong resistance to alkaline environments
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Stable performance under spot welding conditions
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Low contact resistance
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Consistent microstructure after annealing
These features explain why Nickel 200/201 strips have become standard materials for lithium battery tabs, battery pack interconnections, and resistance welding assemblies.
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Lithium Battery Tabs
Nickel strips are extensively used for cylindrical, prismatic, and pouch cell interconnections due to their excellent conductivity and weldability. -
Spot Welding and Resistance Welding
Pure nickel ensures stable weld nuggets, minimal spatter, and repeatable joint strength. -
Battery Pack Assembly
Used in energy storage systems, EV battery modules, and portable power devices. -
Electrical Connectors and Contacts
Low contact resistance supports efficient current transmission. -
Precision Electronic Components
Suitable for fine stamping and forming operations. -
Hydrogen and Electrochemical Devices
Nickel’s resistance to alkaline corrosion makes it useful in specialized energy systems.
| Grade | Nickel (Ni)+ Cobalt (Co) | Copper (Cu) | Silicon (Si) | Manganese (Mn) | Carbon (C) | Magnesium (Mg) | Sulfur (S) | Phosphorus (P) | Iron (Fe) |
|
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99.9% | ≤0.015 | ≤0.03 | ≤0.002 | ≤0.01 | ≤0.01 | ≤0.001 | ≤0.001 | ≤0.04 |
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99.6% | 0.1 | 0.1 | 0.05 | 0.1 | 0.1 | 0.005 | 0.002 | 0.1 |
Physical & Mechanical Properties
| Grades | N4/Ni201 | N6/Ni200 |
| Density | 8.9g/cm³ | 8.9g/cm³ |
| Melting Point | 1455°C | 1445-1470℃ |
| Coefficient of Thermal Expansion | 13.0µm/m·°C | 13.3×10⁻⁶/℃ |
| Thermal Conductivity | 10.1W/m·K | 90.7 W/m·K |
| Electrical Resistivity | 0.103×10⁻⁶Ω·/m (at 20℃) | |
| Electrical Conductivity | 14.6% IACS | |
| Tensile Strength | ≥450MPa | ≥450 MPa |
| Yield Strength | ≥200MPa | ≥150 MPa |
| Elongation at Break | ≥40% | ≥40% |
| Hardness | ≤150 |
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The demand for high purity nickel strip is closely tied to global electrification and energy storage expansion. Several industry shifts are influencing procurement patterns:
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Rapid growth of lithium battery manufacturing capacity
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Increased automation of battery welding lines
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Higher reliability standards for conductive materials
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Demand for consistent welding performance
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Emphasis on long-term supplier stability
Battery manufacturers are scaling production while tightening tolerances. As welding speeds increase and equipment becomes more automated, even minor material inconsistencies can disrupt output. Uniform hardness, thickness accuracy, and surface cleanliness are now critical selection criteria.
Procurement teams are moving beyond simple price comparisons. Material stability, delivery reliability, and technical support have become decisive factors.
Typical Technical Parameters
| Property | Nickel 200 Strip | Nickel 201 Strip |
|---|---|---|
| Nickel Content | ≥ 99.6% | ≥ 99.6% |
| Carbon | ≤ 0.15% | ≤ 0.02% |
| Density | 8.89 g/cm³ | 8.89 g/cm³ |
| Melting Point | 1435–1446°C | 1435–1446°C |
| Tensile Strength (Annealed) | 380–550 MPa | 380–550 MPa |
| Elongation | ≥ 30% | ≥ 30% |
| Electrical Resistivity | ~0.096 μΩ·m | ~0.096 μΩ·m |
| Thermal Conductivity | ~90 W/m·K | ~90 W/m·K |
| Typical Thickness | 0.02 – 3.0 mm | 0.02 – 3.0 mm |
Available conditions:
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Soft annealed
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Cold rolled
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Bright surface
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Customized slit widths
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Precision thickness tolerances
High purity Nickel 200/201 strip has become one of the most essential materials in the lithium battery industry. While it may look like a simple metal strip, its role in battery performance and production efficiency is far more significant than many realize.
At DLX Company, we treat pure nickel strip not as a generic metal product, but as a precision-engineered material designed to meet the evolving needs of battery manufacturers and welding-intensive industries.
The fundamental reason nickel strip is so widely adopted lies in its electrical properties. Lithium batteries rely on stable current flow between cells. Any variation in resistance can influence heat generation, efficiency, and long-term reliability. High purity nickel, with its excellent conductivity and low resistivity, provides a dependable solution.
But conductivity alone is not enough.
In modern battery factories, production lines run at extremely high speeds. Automated spot welding machines operate continuously, creating thousands of welds per hour. Under these conditions, material consistency becomes critical. Even slight deviations in thickness or hardness can cause unstable weld formation, inconsistent nuggets, or increased defect rates.
That is why Nickel 200 and Nickel 201 strips are carefully selected.
Nickel 200 performs well in most standard applications, offering strong ductility and predictable forming behavior. Nickel 201, with its lower carbon content, is especially valuable when welding temperatures or thermal cycles are more demanding. Reduced carbon minimizes structural instability at elevated temperatures, preserving mechanical integrity.
In real manufacturing environments, these differences matter.
Welding stability is one of the most frequently discussed topics with our customers. Battery pack assembly requires materials that behave consistently under electrical resistance welding. Too hard, and the strip may resist proper fusion. Too soft, and mechanical stability may be compromised. Surface condition also plays a direct role, influencing contact resistance and weld quality.
At DLX, our production approach focuses on controlling these variables.
We start with high purity raw materials to ensure chemical stability. Melting and refining processes are managed to limit impurities that could affect conductivity or mechanical behavior. Rolling operations maintain strict thickness tolerances, while annealing cycles are carefully regulated to achieve uniform hardness and elongation.
Consistency across batches is a key priority.
In large-scale battery production, procurement teams cannot afford material variability. A change in mechanical performance between shipments can force machine parameter adjustments, disrupt welding efficiency, and increase downtime. Our goal is to eliminate those risks through stable process control.
Surface quality is another critical factor.
For spot welding applications, clean and bright strip surfaces provide better electrical contact and more predictable energy distribution. Oxide layers, contamination, or roughness can negatively impact weld formation. DLX nickel strips are produced with controlled surface conditions to support high-yield welding operations.
Industry trends further reinforce the importance of material reliability.
Global battery demand continues to rise, driven by electric vehicles, renewable energy storage, and portable electronics. Manufacturers are expanding capacity while increasing automation. As processes become more sophisticated, tolerance for material inconsistency decreases.
Buyers now evaluate suppliers based on far more than price.
Technical stability, production capacity, delivery reliability, and long-term cooperation capability are becoming central decision criteria. At DLX Company, we align our manufacturing philosophy with these expectations.
We emphasize predictable material behavior, precise dimensional control, and responsive technical support. Customization is also essential. Different battery designs require different strip thicknesses, mechanical properties, and coil configurations. Our production flexibility allows us to support diverse OEM requirements.
Another important aspect is total cost efficiency.
In battery manufacturing, material cost is only one part of the equation. Welding defects, machine stoppages, and quality issues often generate far greater expenses. Stable nickel strip performance reduces these hidden costs by improving weld consistency and production yield.
That is where a reliable supplier creates real value.
DLX positions itself as a long-term manufacturing partner rather than a transactional vendor. We work closely with customers to understand welding processes, forming operations, and mechanical requirements. This collaboration helps optimize both material selection and production efficiency.
Looking ahead, the battery industry will continue to demand tighter tolerances and greater reliability. Materials that once met basic standards may no longer be sufficient. Precision, consistency, and technical understanding will define the next generation of industrial suppliers.
High purity Nickel 200/201 strip is not just a conductive connector. It is a critical performance component in high-speed automated production systems.
At DLX, we make sure it performs exactly as expected.
For more details, pls directly contact us.
About Us:
Our 12,000㎡ factory is equipped with complete capabilities for research, production, testing, and packaging. We strictly adhere to ISO 9001 standards in our production processes, with an annual output of 1,200 tons. This ensures that we meet both quantity and quality demands. Furthermore, all products undergo rigorous simulated environment testing including high temperature, high pressure, and corrosion tests before being dispatched, ensuring they meet customer specifications.
For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.
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FAQ – Frequently Asked Questions
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Why is pure nickel preferred for battery tabs?
Pure nickel offers excellent conductivity and very stable welding behavior, ensuring reliable electrical connections. -
What is the practical difference between Nickel 200 and Nickel 201?
Nickel 201 has lower carbon content, which improves performance in higher temperature and welding-intensive applications. -
Does thickness tolerance matter in spot welding?
Yes. Inconsistent thickness can affect weld energy distribution and joint quality. -
Can nickel strips be used in automated welding machines?
Absolutely. Soft annealed nickel strips are specifically designed for smooth feeding and stable welding cycles. -
How does nickel perform in long-term battery use?
Nickel maintains conductivity and resists corrosion, supporting battery reliability over time. -
Are custom dimensions available?
Yes. Width, thickness, temper, and coil size can be tailored to production requirements. -
What surface condition is best for welding?
Bright, clean surfaces with controlled oxide levels provide optimal welding results. -
What quality documents are typically required?
Mill test certificates, chemical composition reports, and mechanical property data are commonly requested.
