18650 21700 26650 32650 Battery Welding Machine Pure Nickel Strip Nickel Foil

Battery welding lines that switch between 18650 and 32650 formats need a strip that welds the same every time — this pure nickel strip covers all four cell sizes in 0.05-0.5 mm thickness with 0.096 μΩ·m resistivity and ISO 9001 & SGS-audited consistency. Supplied in Ni200 and Ni201, it is slit to battery widths (2-15 mm) and coiled for feeding directly into spot welding machines, with batch records that let your QC verify every spool before it reaches the line.

Strip, foil and plate are different points on the same material family, and ordering the right form avoids rework. Strip — 0.05-0.5 mm thick — is the standard form for cell-to-cell welding and tab connections, where it feeds continuously through the welder. Foil is thinner (down to 0.025 mm) and suits low-current or space-constrained joints; plate is thicker (above 0.5 mm) and serves busbar or structural connections. Foil and plate are supplied per drawing — confirm thickness, width and temper with your order — while this page covers the strip form in full.

• One strip across four cell formats — 18650 to 32650 — simplifies inventory and reduces line changeover.
• Low 0.096 μΩ·m resistivity keeps joint resistance stable weld to weld, protecting weld-machine parameters.
• Hot-sale 0.15 / 0.2 mm gauges match common spot welding windows for cylindrical cells.
• Ni200 and Ni201 both available; low-carbon Ni201 suits cells with elevated-temperature service.
• Cleaned, degreased surface and batch traceability support incoming inspection and pack-line audits.

18650, 21700, 26650 and 32650 share the same cylindrical welding principle, differing mainly in diameter, capacity and tab current. One strip specification can feed all four, so pack builders running mixed formats keep a single SKU and avoid per-format inventory. Width and pattern are slit and punched to your pack layout per drawing.

Spot welding quality depends on stable electrical resistance at the joint. With resistivity of 0.096 μΩ·m (per ASTM B162 material data) and tight thickness tolerance, the strip keeps the weld-energy window consistent across the coil, which matters most on high-speed welding machines where parameters are set once and run for thousands of joints.

Choose the form by joint current and space: strip (0.05-0.5 mm) for series and parallel cell connections, foil for low-current or tight-clearance joints, plate for busbars and structural links. If your drawing calls for foil or plate, both are available per drawing with the same grades and documentation; thickness, width and temper are confirmed against your print before production.

Every coil is traceable to its melt: chemical composition, dimensions and surface condition are inspected per batch, and EN 10204 3.1 mill certificates are available with the order. This gives your QC verifiable incoming data instead of a self-declared spec sheet.

Price follows grade: N4 420-480 / Ni201 350-390 / Ni200 340-380 / N6 300-340 USD/kg FOB; custom widths and patterns are quoted per drawing.

Each batch passes chemical composition analysis, dimensional and surface inspection on our nickel-only line. Composition is verified against the catalog, geometry against your drawing, and final records are issued per EN 10204 3.1 on request.

Dimensions and material per ASTM B162 (Nickel Plate, Sheet and Strip) and GB/T 2072-2020 (Nickel and Nickel Alloy Strip and Foil); export documentation per EN 10204 3.1.

Material data on this page follows ASTM B162 and GB/T 2072-2020; physical-property guidance references the ASM Specialty Handbook: Nickel, Cobalt, and Their Alloys (ASM International) and Nickel Institute application guidance; batch-level composition and geometry are verified against mill test certificates (EN 10204 3.1) and in-house inspection records.

Strip is coiled with edge protection and packed in export cartons or wooden cases. Lead time: 3-7 days for stock and small orders, 7-15 days for standard production, 15-30 days for complex custom work per drawing.

For pack lines that weld around the clock, consumable consistency is a production parameter — not a purchasing detail. Changzhou DLX Alloy Co., Ltd. has run a nickel-only line since 2002 across a 12,000 m² plant, with 10,000 t/yr capacity, and supplies battery welding strip with per-batch records so your line never has to re-qualify a spool. ISO 9001 & SGS audited.

Submit your strip width, pattern and cell format for a confirmed quote.

• Which cell sizes does this strip cover?

  18650, 21700, 26650 and 32650 in one specification; widths, patterns and thickness are slit and punched per your pack layout.

• How is weld consistency controlled?

  Resistivity is 0.096 μΩ·m with tight thickness tolerance, and every batch is inspected for composition and geometry, so the weld-energy window stays stable across the coil.

• What thickness should I order?

  0.15 mm and 0.2 mm are the hot-sale gauges for cylindrical-cell spot welding; the full range is 0.05-0.5 mm — confirm your joint current and we will recommend a gauge.

• Can you supply foil or plate as well?

  Yes — foil and plate are available per drawing with the same grades and documentation; send thickness, width and temper for a quote.

• What documents come with the order?

  EN 10204 3.1 mill certificates, batch records and inspection reports are available on request for incoming inspection.

• What is the MOQ and lead time?

  MOQ is 5 kg; delivery is 3-7 days for stock and small orders, 7-15 days for standard production, and 15-30 days for complex custom work per drawing.