Role in Lithium-Ion Batteries
Stainless steel is used for cylindrical cell cans (18650, 21700, 4680 formats) — the hermetic housing maintaining the cell's internal environment under pressure and temperature extremes. At the pack level, high-strength steel alloys form the structural backbone: module end plates, cell separators, pack base plates, and the protective underbody armor shielding EV battery packs from road hazards and crash impacts.
For grid-scale Battery Energy Storage Systems (BESS), modified shipping containers fabricated from marine-grade steel provide the robust, weatherproof enclosures housing racks of battery modules. The American Battery's cell-to-container architecture — developed through C4V and Near Prime Technologies — utilizes standard ISO container enclosures, leveraging America's existing steel fabrication infrastructure for gigawatt-hour scale storage deployment.
NPT Cell-to-Container: C4V's 53Ah BMLMP prismatic cell scales through an 8S3P module (4.7 kWh) → tray (9.4 kWh) → rack (188 kWh) → 15-rack ISO container (2.82 MWh) — all housed in American steel enclosures.