Custom Pure Nickel Electrode Mesh — for Alkaline & PEM Hydrogen Electrolyzer Applications

Pure nickel electrode mesh from Changzhou DLX Alloy Co., Ltd. is purpose-built for hydrogen electrolyzer manufacturers — not a generic industrial mesh adapted for electrochemical use. We start with our own pure nickel wire drawn in-house from N4, N6, Ni200, or Ni201 grade, then weave or weld to your specified mesh count, wire diameter, and sheet dimensions. Whether you need fine-woven mesh for zero-gap alkaline electrolyzer electrodes, coarse expanded mesh for PEM current collectors, or custom-sized sheets for a new stack design, our 20 years of nickel alloy manufacturing — from melt to mesh — means the wire chemistry, the weave integrity, and the surface condition are controlled end-to-end. Full EN 10204 3.1 MTC with wire-to-mesh traceability on every order.

Not sure which grade? Tell us your electrolyzer type (ALK/PEM/SOEC), operating temperature, and KOH concentration — we recommend the optimal nickel grade and mesh construction within 24 hours.

• Wire drawn, not bought — chemistry control from the melt — The nickel wire in your electrode mesh began as an ingot in our melting furnace. We control the Ni, Fe, Cu, and trace element levels to your specification — not to whatever chemistry a wire supplier happened to have in stock. For PEM customers where ppm-level iron contamination degrades membrane performance, this control is not optional.
• Custom weave to your cell design, not our catalog — Provide your required mesh count (wires per inch), wire diameter, weave pattern, and sheet dimensions. We weave to your specification. No compromise between "what's in stock" and "what your cell needs."
• Annealed after weaving — stress-free, flat, dimensionally stable — Every mesh sheet is solution annealed after weaving to relieve the forming stresses that cause curling, distortion, and non-uniform contact pressure under stack compression. Your mesh arrives flat, stays flat, and makes uniform contact across the entire electrode area.
• Surface prepared for catalyst coating — Standard delivery includes a bright, oxide-free surface ready for direct catalyst application. No acid cleaning, no ultrasonic degreasing required before coating. For customers requiring specific surface roughness (Ra) for coating adhesion, we can adjust the final surface finish.
• Dimensionally cut to your cell frame — Mesh sheets cut to your exact length * width — not generic roll dimensions that you have to trim and scrap. Laser or shear cutting with clean edges; no frayed wires that short-circuit adjacent cells under compression.
• Traceability from melt to mesh sheet — Every mesh sheet traceable to the original nickel ingot heat number. When your electrolyzer customer audits material certs — and they will — the documentation chain is complete from the nickel mine to the finished electrode.

For most of our first 15 years, DLX supplied pure nickel wire to mesh weavers — we made the raw material, someone else made the mesh. Around 2018, hydrogen electrolyzer manufacturers began asking us a question the mesh weavers couldn't answer: "Can you guarantee the wire surface chemistry hasn't changed between your drawing line and the finished mesh?"

The answer from the conventional supply chain was no — because the mesh weaver's facility was not a nickel processing environment. Wire could pick up iron contamination from steel tooling, carbon residue from lubricants, or oxidation from inadequate atmosphere control during annealing. For alkaline electrolysis, these contaminants create localized corrosion cells on the electrode surface. For PEM, they poison the membrane.

So we brought mesh fabrication in-house. Same facility, same atmosphere-controlled environment, same quality system as our wire drawing operation. The wire leaves our drawing line and enters our mesh production area without leaving the building — and without touching anything that isn't nickel-compatible. Since then, we have supplied custom electrode mesh to electrolyzer manufacturers across Europe and Asia, including multiple hydrogen projects now in commercial operation.

• In-house mesh fabrication since 2018 — plain Dutch, plain square, twill weave, welded, expanded metal. Wire and mesh made in the same 12,000 m² facility.
• Custom mesh count from 10 to 200 mesh; wire diameter 0.10–0.80 mm; sheet size to your specification.
• ISO9001 with full melt-to-mesh traceability; SGS-accredited; third-party inspection available.

Source: DLX Alloy product catalog. Full composition certified on every wire lot used for your mesh.

Third-party inspection by SGS, BV, or TÜV available. All shipments fully documented with melt-to-mesh traceability.