As solid-state batteries move toward mass production, current collectors face higher requirements for corrosion resistance, oxidation resistance, and production consistency.
For sulfide solid-state batteries, conventional copper foil may face corrosion challenges when exposed to sulfide-containing materials. This creates a need for a more stable copper current collector.
To address this challenge, HSMetal developed nickel plated copper foil using an in-situ synchronous nickel plating process, integrating nickel plating directly into the copper foil production process.
The result is a copper foil with a dense nickel protective layer, designed to improve surface corrosion resistance while maintaining the copper substrate as the conductive base.
For complete product specs, test reports and quotation, go to our [Nickel Plated Copper Foil (Ni‑Plated Cu Foil) | Corrosion‑Resistant Anode Current Collector for Sulfide Solid‑State Batteries | China Manufacturer] product page.
Why Develop Nickel Plated Copper Foil?
Sulfide solid electrolytes are an important technology route for solid-state batteries.
However, the sulfide environment can create corrosion challenges for conventional copper foil.
This may affect:
- Copper foil surface stability
- Long-term material reliability
- High-temperature processing
- Battery manufacturing consistency
HSMetal focused its R&D on one key question:
How can we improve the corrosion resistance of copper foil while maintaining stable large-scale production?
The answer was a nickel-plated copper foil with an integrated in-situ plating process.
For detailed specifications and ordering information, see our nickel plated copper foil product page.
HSMetal In-Situ Nickel Plating Technology
Unlike a conventional separated post-plating process, HSMetal integrates nickel plating into the copper foil manufacturing process.
The process combines:
Copper Foil Production→ In-Situ Nickel Plating→ Surface Protection → Thickness & Uniformity Control →Finished Foil Inspection
HSMetal developed dedicated equipment and a high-stability nickel-plating solution system to improve coating uniformity over long-length copper foil.
The nickel layer forms a dense protective surface on the copper foil.
This helps provide additional protection against corrosion and oxidation in demanding battery-processing environments.
For production-grade in-situ nickel plated copper foil, see our nickel plated copper foil for sulfide solid-state batteries.
Tested Corrosion Resistance
Corrosion resistance is one of the main reasons HSMetal developed nickel plated copper foil.
HSMetal conducted Tafel testing and sulfide-related corrosion testing during product development.
The company's test results showed that the nickel plated copper foil had significantly improved corrosion resistance compared with conventional copper foil.
In a documented 48-hour sulfide-electrolyte corrosion test, the tested foil surface showed no obvious corrosion traces.
The nickel layer acts as a protective barrier between the copper substrate and the surrounding environment.
High-Temperature Oxidation Resistance
Solid-state battery manufacturing may involve elevated-temperature processing.
HSMetal therefore evaluated the thermal oxidation resistance of its nickel plated copper foil.
The development records include:
- 150°C / 48 hours: No visible oxidation
- 200°C / 48 hours: No visible oxidation observed on the tested foil surface
The 200°C test sample maintained a bright silver metallic appearance after the test.
These results demonstrate the oxidation resistance observed under the tested conditions.
EDX Sectional View
Strong Nickel-Layer Adhesion
A protective coating must remain firmly attached to the copper substrate.
HSMetal performed a tape-peel test to evaluate nickel-layer adhesion.
The test showed:
- No visible nickel peeling
- No nickel powder residue
- No obvious exposed copper
- No visible powdering
The tested foil surface remained uniform and bright after the test.
This helps support the material's suitability for further battery-processing evaluation.
Mechanical Performance
Nickel plating also affects the mechanical properties of the composite foil.
According to HSMetal's development results, the tensile strength of the tested nickel plated copper foil increased by approximately 20% compared with the copper substrate.
This provides an additional advantage for handling and processing of thin copper foil.
From R&D to Long-Roll Production
Developing a good laboratory sample is only the first step.
For battery manufacturers, the material must also be produced continuously and consistently.
HSMetal's in-situ nickel plating technology has reached ton-scale mother-roll production, with:
- 1050 mm effective width
- More than 12,000 m stable winding per roll
This marks an important step from laboratory development toward large-scale manufacturing.
Customized Copper and Nickel Thickness
Different battery designs require different current collector specifications.
HSMetal's development program supports customized copper and nickel thickness combinations.
Documented development configurations include:
| Item | Development Range / Configuration |
|---|---|
| Copper foil thickness | 4–10 μm |
| Nickel layer thickness | 0.1–0.5 μm |
| Further production development | Copper 4.5–12 μm |
| Nickel layer | 0.1–1 μm |
| Double-sided sample | 3.5 μm Cu + 0.25 μm Ni per side |
These figures come from different stages and configurations of HSMetal's development program. Final specifications can be customized according to customer requirements.
Why Choose HSMetal Nickel Plated Copper Foil?
HSMetal's development combines equipment, process, material and quality control.
Key Advantages
In-Situ Plating Technology:Nickel plating is integrated into the copper foil manufacturing process.
Dense Nickel Protective Layer:Designed to improve corrosion and oxidation resistance.
Long-Roll Production:1050 mm effective width and more than 12,000 m stable winding per roll have been achieved in development production.
Customized Specifications:Copper foil and nickel-layer thickness can be adjusted according to application requirements.
Performance Testing:Corrosion, thermal oxidation, mechanical and coating-adhesion tests have been conducted.
Customer Validation:The product has entered customer sampling and further validation stages in domestic and overseas markets.
Applications
HSMetal Nickel Plated Copper Foil can be evaluated for:
- Sulfide solid-state batteries
- Solid-state battery anode current collectors
- Advanced battery research
- High-temperature battery processing
- Customized battery current collectors
The final material selection should be confirmed through the customer's electrolyte, electrode and cell-level testing.
Related Product
For detailed product specifications, customization options and commercial information, visit:
This product page provides detailed information about the nickel plated copper foil structure, applications, customization, quality control and commercial terms.
Need Nickel Plated Copper Foil for Your Solid-State Battery Anode Current Collector?
Tell us your required copper foil thickness (4–12 μm), nickel layer thickness (0.1–1 μm), width, quantity, and electrolyte type (sulfide/oxide). We will confirm availability, provide a quotation, and ship with full documentation.
Or contact our technical team with your electrolyte chemistry, cathode voltage, and processing temperature - we will recommend the right nickel plated copper foil specification for your cell design.
Explore our other battery foil products → Nickel Plated Copper Foil | Microporous Copper Foil | Ultra Thin Copper Foil | Battery Foil Selection Guide
FAQ
Q1: What is nickel plated copper foil used for?
A: Nickel plated copper foil is used as an anode current collector in sulfide and oxide solid-state batteries. It resists sulfide electrolyte corrosion and high-temperature oxidation, and is compatible with high-voltage cathode systems.
Q2: Why do solid-state batteries need nickel plated copper foil?
A: Sulfide solid electrolytes generate corrosive gases that attack bare copper foil. Bare copper foil also oxidizes at elevated temperatures. Nickel plated copper foil forms a dense protective layer that blocks hydrogen sulfide and other sulfur-containing substances.
Q3: What is in-situ synchronous nickel plating?
A: In-situ synchronous nickel plating integrates the nickel plating process into the raw foil production stage - rather than applying it as a separate post-treatment step. This enables large-width, long-roll stable production.
Q4: What is the difference between in-situ plating and post-plating?
A: In-situ plating integrates the process into raw foil production - achieving 1,050 mm width and 12,000+ meter rolls. Post-plating is process-segmented and cannot achieve the same width and roll length consistency.
Q5: What corrosion resistance does nickel plated copper foil offer?
A: After 48 hours of severe corrosion testing against sulfide electrolytes, the foil surface shows no obvious corrosion marks. Tafel testing shows corrosion resistance far higher than conventional copper foil.
Q6: What oxidation resistance does nickel plated copper foil offer?
A: The foil withstands high-temperature baking without oxidation - the surface maintains its bright silver metallic luster.
Q7: What is the tensile strength improvement?
A: Nickel plating increases the tensile strength of the copper foil by 20% compared to the base material.
Q8: Does the nickel layer peel off?
A: No. After tape peel testing, there is no nickel layer detachment, no nickel powder residue on either the foil surface or the tape.
Q9: What is the production capability?
A: We have achieved ton-level parent roll mass production with 1,050 mm effective width and single-roll stable winding exceeding 12,000 meters. Copper foil thickness covers 4–12 μm and nickel layer thickness covers 0.1–1 μm.
Q10:What is nickel plated copper foil?
A:Nickel plated copper foil is a copper foil substrate with a controlled nickel layer on one or both sides. The nickel layer is designed to improve surface protection and corrosion resistance.
Q11:Why use nickel plated copper foil for solid-state batteries?
A:It is developed to provide better surface corrosion and oxidation resistance than conventional bare copper foil in demanding battery environments.
Q12:Is it suitable for sulfide solid-state batteries?
A:Yes, it can be evaluated as an anode current collector for sulfide solid-state batteries. Final compatibility should be verified with the specific sulfide electrolyte and cell system.
Q13:How does in-situ nickel plating work?
A:HSMetal integrates nickel plating directly into the copper foil production process instead of treating it only as a separate post-processing step.
Q14:What tests has HSMetal performed?
A:HSMetal has conducted Tafel corrosion testing, sulfide-electrolyte corrosion testing, high-temperature oxidation testing, tensile testing and nickel-layer adhesion testing.
Q15:Can the copper and nickel thickness be customized?
A:Yes. HSMetal supports different copper substrate and nickel-layer thickness configurations according to customer requirements.
