Nickel Strip for 18650 Battery Packs

Aurico Alloys LLP manufactures pure nickel strip and busbars for 18650 battery packs, cut to your cell layout and supplied ready to weld.

The 18650 is still the most widely built cylindrical format, and the interconnect is where most pack problems start. Strip that is too thin runs hot under load; strip that is too thick will not weld cleanly with the energy a typical spot welder delivers. Getting that balance right for your current is the whole job.

Specifications

18650 nickel strip - supply range
Material	Pure nickel 99.6% min, ASTM B162 Nickel 200 / 201
Cell format	18650 (18 mm diameter x 65 mm)
Thickness	0.10 mm to 0.30 mm standard; heavier gauges to order
Width	3 mm to 300 mm, slit to tolerance
Patterns	H-type, honeycomb, zigzag, fused link and custom DXF
Temper	Annealed (soft) for spot welding
Certification	EN 10204 3.1 mill test certificate

Why Pure Nickel

Pure nickel spot-welds consistently to steel cell cans, resists the electrolyte and humidity present inside a pack, and holds a stable low contact resistance over thousands of cycles. Plated steel strip is cheaper but its resistance climbs as the plating wears through, and bare copper will not weld reliably to a cell can without a nickel interlayer.

Applications

Application	Typical use
E-mobility	E-bike, e-scooter and light electric vehicle packs.
Power tools	High-drain cordless tool and garden equipment packs.
Energy storage	Solar battery banks and stationary storage modules.
Consumer electronics	Laptop, UPS and portable power station packs.
Prototyping	Development packs and test fixtures.

Frequently Asked Questions

It depends on the current each parallel group carries. Thin strip spot-welds easily but limits current; thicker strip carries more but needs higher weld energy. Send us your continuous and peak pack current with the cell layout and we will propose a cross-section.

Yes, for anything that matters. Plated steel is cheaper, but its resistance rises as the plating wears through and the steel underneath corrodes, so joint resistance drifts upward over the pack life. Pure nickel holds a stable low resistance across thousands of cycles.

Commercially pure nickel at 99.6% minimum, ASTM B162 Nickel 200 / 201, annealed for consistent spot-weld behaviour.

Yes. Send a DXF or STEP file and we will laser cut to your cell pitch, including H-type, honeycomb, zigzag and fused-link patterns.

We supply nickel-copper sandwich busbars, which keep a weldable nickel surface over a copper core for much higher current capacity.

Send Us Your Pack Layout

Share a DXF or a sketch with your cell pitch and current requirement and we will quote strip, cut pattern and tooling. Call +91 7977 88 6611 or email info@auricoalloys.com.

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