Nickel-Plated vs Pure Nickel Strip: Which One Do You Need?

Battery Component Guide · Arambhika Enablers

If you're sourcing strip material for spot-welding battery cells together — for an EV pack, an energy storage system (ESS), or a consumer device pack — one of the first decisions is whether to use nickel-plated steel strip or pure nickel strip. Both look similar, both come in the same standard widths (6mm to 46.5mm) and thicknesses (0.15mm and 0.3mm), but they behave very differently in your pack.

What is nickel-plated strip?

Nickel-plated strip is a low-carbon steel base strip with a layer of nickel electroplated on the surface. The steel core gives it strength and a lower cost, while the nickel coating provides corrosion resistance and a weldable, conductive surface. It's the most widely used option for general-purpose battery pack assembly, including 1P and 2P configurations for 18650, 21700 and 32650 cylindrical cells.

What is pure nickel strip?

Pure nickel strip is solid nickel — no steel core. This gives it meaningfully lower electrical resistance and better long-term corrosion resistance, especially in humid or chemically harsh environments. It's flexible, solders and welds cleanly, and is the preferred choice where every milliohm of resistance matters — high-discharge EV packs, performance ESS systems, and applications with long service-life requirements.

Side-by-side comparison

Which one should you choose?

For most consumer electronics packs and standard EV/ESS assemblies where cost matters and discharge currents are moderate, nickel-plated strip is the practical choice — it's reliable, weldable, and significantly cheaper at volume. For high-performance packs where minimizing internal resistance and maximizing pack life are priorities — such as performance EVs, grid-storage ESS, or packs operating in harsh environments — pure nickel strip is worth the extra cost.

Both options are available from Arambhika Enablers in widths from 6mm to 46.5mm, thicknesses of 0.15mm and 0.3mm, as single-piece (1P) strips and pre-formed 2P strips for 18650, 21700 and 32650 cell configurations — with or without holders.