Nickel Cathode

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Seawater Electrolysis Nickel Mesh

DONGSHENG offers premium recycling for seawater electrolysis nickel mesh, primarily from two brands: Italy's De Nora with DSA-coated nickel mesh and China's Baoji Yinggao Metal with foam nickel mesh. Both brands possess mature expertise in salt-spray corrosion resistance and high conductivity.

Details

Pollution Control in Seawater Electrolysis Nickel Mesh Recycling: Residual seawater salts require freshwater rinsing. Otherwise, smelting generates dioxins, increasing processing costs by 30%.


Seawater electrolysis nickel mesh must simultaneously meet conductivity, corrosion resistance, and mechanical strength requirements. Core parameters are as follows:



Parameter Category

Technical Specifications

Impact on Electrolytic Performance

Material   & Purity

N4   grade (Nickel ≥99.9%)
  Ruthenium/Iridium coating

High-purity   nickel reduces Cl⁻ corrosion rate
  Ru/Ir coating enhances chlorine evolution catalysis

Mesh   Size & Aperture

Coarse   filter: 10–60 mesh (0.3–1mm aperture)
  Fine filter/Electrode: 100–300 mesh (20–170μm aperture)

Small   apertures clog easily
  Large apertures reduce filtration/catalysis efficiency

Thickness   & Strength

Woven   mesh: 0.1–0.6mm
  Expanded mesh: 0.05–0.3mm
  Foam nickel: 1.5–5mm

≥0.3mm   required for deformation resistance in high-pressure seawater

Conductivity

Surface   resistance ≤0.1Ω/□
  (Coated: ≤0.01Ω/□)

Directly   affects energy conversion efficiency
  (Every 0.05Ω/□ reduction lowers energy consumption by ~3%)

Porosity   (foam nickel)

≥95%

High   porosity increases electrolyte diffusion & bubble release speed

Salt   Spray Resistance

≥720h   no pitting (ASTM B117)

Ensures   >5-year lifespan in marine environments

 

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