Pure Nickel Electrode Mesh — Custom Design & Fabrication for Hydrogen Electrolyzer Stacks

ISO9001 Factory Direct | Since 2002 | N4/N6/Ni200/Ni201 | Custom Every Parameter | 3-7 Day Trial Ship

The global green hydrogen electrolyzer market is scaling from gigawatts to terawatts — and every megawatt of capacity requires thousands of precisely engineered nickel electrode mesh sheets, each one a potential failure point in a multi-million-dollar stack. At Changzhou DLX Alloy Co., Ltd., we supply that mesh to electrolyzer OEMs who cannot afford field failures. Our approach is simple but uncommon: we manufacture the nickel wire ourselves, we weave or weld the mesh in-house, and we treat every mesh sheet as a functional electrode component — not as a commodity mesh product. Custom wire diameter, mesh count, weave pattern, sheet dimensions, surface condition, and post-weave annealing are all adjustable to your cell design. Full EN 10204 3.1 MTC with wire-to-sheet traceability.

In 2020, a 1 MW alkaline electrolyzer stack contained roughly 200 electrode mesh sheets. If one sheet had a broken wire that caused a local hot spot during operation, the stack could continue running — the defect was small relative to total electrode area.

By 2026, 20 MW stacks are in production, and 100 MW modules are on the drawing board. A 20 MW stack might contain 3,000 to 5,000 mesh sheets. At this scale, even a 0.1% defect rate means 3 to 5 mesh sheets with potential issues per stack — and each one can create a localized overpotential, accelerate membrane degradation, or in a worst case, cause an internal short circuit that takes the entire stack offline.

The mesh is no longer a commodity. It is a critical component whose quality directly determines stack efficiency, stack life, and stack warranty cost. Electrolyzer OEMs scaling to 20 MW and beyond are shifting their mesh procurement from "buy by the roll, cut in-house, hope it works" to "partner with a manufacturer who treats mesh as an engineered electrode component."

That partnership is what DLX offers.

• We iterate with you, not just ship and move on — Most mesh suppliers send you a quote based on your spec and walk away. At DLX, the first trial shipment is the start of a technical collaboration. We expect your electrochemical test results and we adjust the mesh — wire diameter down 0.02 mm, mesh count up 5 wires/inch, post-anneal flatness tightened by 0.05 mm — until your single-cell data matches your stack performance targets.
• Wire chemistry locked to your approved heat — Once your mesh specification is qualified, we reserve a specific nickel heat for your production orders. Same melt chemistry from batch to batch means same electrode overpotential from batch to batch — no re-qualification, no unexpected stack performance variation.
• Every mesh sheet is an electrode, not a commodity — We inspect for broken wires, skipped weaves, edge fraying, and flatness deviation as if each sheet will be installed in a 100 MW stack — because one day, it will. Defect sheets are scrapped at our facility, not discovered at your stack assembly station.
• Scale-ready — from prototype to production under one roof — The same facility, same wire drawing line, same mesh line, and same quality system that supplies your 10-sheet trial order is capable of supplying your 10,000-sheet production order. No re-qualification with a different factory. No process migration risk.
• Traceability from nickel ingot to electrode sheet — Each sheet traceable to the original melt heat number. When an electrolyzer OEM's customer requests full material traceability for a green hydrogen project financed by a development bank — which is increasingly common — your documentation chain is complete.
• Our wire, our mesh, our problem if anything fails — Not three different companies pointing at each other. The nickel wire, the weaving, the annealing, the cutting, the inspection — one company, one quality system, one point of accountability. When an issue arises, you get a root cause analysis and a corrective action — not a referral to someone else's supplier.

Visit a conventional mesh procurement route: a wire mill in Jiangsu melts nickel and draws wire. A mesh weaving shop in Hebei buys that wire and weaves it. A trading company in Shanghai consolidates, packages, and exports. The electrolyzer OEM receives mesh sheets and doesn't know which facility the wire came from, what tooling touched it, or what annealing atmosphere was used.

At DLX, the process is linear and transparent. Our melting furnace produces pure nickel ingots. Our wire drawing line reduces that to your specified diameter — with in-line diameter monitoring and intermediate controlled-atmosphere annealing at every appropriate reduction stage. The wire moves directly to our mesh fabrication area without intermediate transport or handling by third parties. The mesh is woven or welded to your specification, solution annealed in the same controlled-atmosphere furnaces used for our aerospace-grade nickel wire, and flattened. Finally, each sheet is inspected against your acceptance criteria, interleaved with acid-free tissue, and packed flat for shipment.

No trading company in the middle. No subcontractor whose facility you've never audited. No wire that spent weeks in a warehouse collecting surface contamination before it reached the weaving shop. This is the supply chain hydrogen electrolyzer OEMs are demanding as they scale — and it is the supply chain we have been building since 2018.

• In-house from melt to mesh — nickel melting, wire drawing, weaving/welding, annealing, flattening, cutting, inspection, and packaging in one 12,000 m² facility.
• ISO9001 quality system applied end-to-end — not just to the wire, not just to the mesh, but to the entire process chain.
• SGS-accredited with BV and TÜV third-party inspection available. Full melt-to-mesh traceability documentation.

Source: DLX Alloy product catalog. Full chemistry certified per wire heat used for your mesh.

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

Can you help us optimize mesh specification for our specific cell design?

Yes — this is the core of our service. Send us your cell operating parameters (temperature, KOH concentration, current density target, active area dimensions, membrane type) and we will recommend an initial wire diameter, mesh count, and weave pattern. We produce 3–5 evaluation sheets. You test them in your single-cell setup, provide electrochemical data, and we iterate until the mesh performance matches your stack design targets.

How do you ensure mesh quality consistency across a 10,000-sheet production order?

Once your specification is qualified, we reserve a dedicated nickel melt heat for your production. Same chemistry across the entire order. In-process inspection at each stage (wire drawing, weaving, annealing, cutting) with statistical sampling per AQL. Every sheet visually inspected before packing. If your order spans multiple melts, we match the chemistry across heats to your approved range.

What happens if a mesh sheet fails during production inspection?

It is scrapped at our facility and not counted toward your order quantity. The non-conformance is recorded in our ISO9001 system, root cause is identified (broken wire from weaving, flatness deviation from annealing, dimensional error from cutting), and corrective action is implemented before the next production batch.

Can you handle export packaging for long-distance sea freight?

Yes. Mesh sheets are interleaved, stacked flat, sealed with desiccant in polyethylene, and crated in seaworthy plywood with internal bracing. Our packaging is designed to survive 4–6 weeks of ocean transit plus customs handling at destination without sheet movement, surface damage, or moisture ingress.

Do you offer supply agreements for multi-year electrolyzer programs?

Yes. For qualified production specifications with forecast annual volumes, we offer multi-year supply agreements with reserved production capacity, fixed or indexed pricing, and scheduled delivery cadence. This gives you supply certainty for your stack manufacturing ramp — and gives us the visibility to reserve your melt capacity, wire drawing time, and mesh line schedule.