Pure nickel strip is produced in thicknesses of 0.05-0.5 mm (hot-sale 0.15/0.2 mm) and widths of 5-200 mm as standard; the battery strip series covers 2, 3, 4, 5, 6, 7, 8, 10 and 15 mm widths. Patterns are available from 1P to 9P for 18650 and 26650 cells and 1P to 5P for 32650, with available space of 18.5, 19, 19.5 and 20.2 mm. Custom sizes and tolerances are confirmed against the drawing before production and locked in the batch record.

Spot welding quality depends on consistent electrical resistance along the strip. Pure nickel strip at 0.096 μΩ·m (20 °C) delivers low, uniform resistance, supporting consistent heat generation at the weld point batch after batch.

Weld strength tracks thickness: variation across the strip changes contact pressure and current density at the weld tip. Thickness is held within drawing tolerances and gauged per batch, so 18650, 21700, 26650 and 32650 packs weld uniformly.

Ni200 (≥99.2% Ni) is the workhorse grade for battery strip; Ni201 (≥99.0% Ni, ≤0.02% C) is available where low-carbon stability matters at elevated temperature. Grade selection is confirmed against the application.

The bands above are indicative for standard sizes; strip pricing follows grade, thickness, width and quantity, with custom sizes quoted per drawing.