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| Brand Name: | DLX |
| Model Number: | N6 Pure Nickel |
| MOQ: | 5kg |
| Payment Terms: | L/C,D/A,D/P,T/T,VTB |
| Supply Ability: | 1200 tons per month |
DLX Industrial N6 Pure Nickel Expanded Mesh (0.1–3.0 mm) is an engineered, precision-expanded metallic mesh fabricated from high-purity nickel (Ni ≥ 99.5%). Specifically developed for alkaline water electrolysis (AWE) stacks, zero-gap electrolyzer cells, and green hydrogen production systems, it delivers superior electrical conductivity, exceptional caustic corrosion resistance in hot concentrated KOH solutions, and a high specific surface area for low overpotential electrochemical reactions.
In alkaline water electrolysis and advanced electrochemical applications, electrode substrates require uncompromising chemical stability and minimal contact resistance under continuous high-current densities. DLX N6 Industrial Pure Nickel Expanded Mesh is precision-slit and stretched from premium cold-rolled pure nickel foil/sheet without welds or joints, creating a continuous, seamless diamond aperture structure.
Unlike woven wire cloth, expanded nickel mesh cannot unravel, offers lower electrical resistance across the mesh plane, and ensures uniform current distribution across large-scale bipolar plates and membrane electrode assemblies (MEA). The three-dimensional diamond pattern optimizes electrolyte flow dynamics, facilitates rapid gas bubble detachment (H2 and O2), and significantly enhances cell efficiency during continuous industrial operation.
| Parameter / Dimension | Specification Range | Industrial Tolerance | Notes / Testing Method |
|---|---|---|---|
| Material Grade | Pure Nickel N6 (UNS N02200 / Ni 200 equivalent) | Ni + Co ≥ 99.5% | High chemical purity, low carbon |
| Original Foil Thickness (T) | 0.10 mm – 3.00 mm | ±0.01 mm – ±0.03 mm | Precision cold-rolled raw material |
| Strand Width (W) | 0.15 mm – 3.50 mm | ±0.02 mm – ±0.05 mm | Micro-slitting tooling control |
| Long Way of Diamond (LWD) | 0.8 mm – 15.0 mm | ±0.1 mm – ±0.3 mm | Center-to-center aperture pitch |
| Short Way of Diamond (SWD) | 0.5 mm – 8.0 mm | ±0.1 mm – ±0.2 mm | Vertical aperture pitch |
| Open Area Ratio | 35% – 75% | Customizable | Optimized for bubble release & conductivity |
| Surface Density | 150 g/m² – 2,800 g/m² | As engineered | Dependent on mesh geometry |
| Electrical Resistivity (20°C) | ~0.096 μΩ·m | Stable matrix | Seamless joint-free conductivity |
| Mesh Structure Form | Flattened (Smooth) / Standard (Raised) | Flatness ≤ 1.5 mm/m | Flattened for zero-gap cell compression |
| Supply Form | Continuous Rolls or Die-Cut Sheets | Custom Drawing | Max roll width up to 1,200 mm |
Q1: What is the main difference between N6 nickel expanded mesh and woven nickel wire mesh for electrolyzers?
A: N6 expanded mesh is produced from a single continuous nickel sheet by precision slitting and stretching. Unlike woven wire cloth, it has no interlaced contact points or loose wires, resulting in lower electrical contact resistance, zero risk of unraveling, and superior mechanical rigidity under cell compression.
Q2: Should I choose flattened or standard (raised) nickel expanded mesh for alkaline electrolyzers?
A: Flattened mesh is the industry standard for zero-gap and membrane-based electrolyzers because its smooth, uniform surface prevents mechanical damage to diaphragms. Standard (raised) mesh provides a higher three-dimensional specific surface area and is often used in conventional gap-type electrolysis or as an elastic backing layer.
Q3: Can DLX customize the diamond aperture dimensions (LWD × SWD) and open area percentage?
A: Yes. We offer fully customizable tooling configurations. We can adjust the thickness (0.1–3.0 mm), strand width, LWD, and SWD to achieve your target open area percentage (35%–75%) and specific surface density per your engineering drawings.
Q4: How does N6 pure nickel resist corrosion in hot 30% KOH electrolyte?
A: Pure nickel (≥99.5% purity) naturally forms a thin, highly protective passive oxide film (NiO/Ni(OH)2) in alkaline environments. This passive layer prevents anodic dissolution and chemical degradation even during continuous operation at elevated temperatures (70°C–90°C).
Q5: What are the available supply dimensions and sample support?
A: We supply continuous rolls (standard widths 500 mm, 1000 mm, 1200 mm) or customized laser/die-cut sheets tailored to your electrolyzer cell dimensions. Free standard sample swatches are available for laboratory validation and trial assembly.
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