Role in Lithium-Ion Batteries
Nickel is the primary energy density driver in lithium-ion cathodes. In NMC and NCA cathodes, nickel is the electrochemically active element responsible for the high capacity enabling long-range EVs. Higher nickel content directly translates to higher energy density: NMC 811 contains ~80% nickel. The tradeoff — reduced thermal stability — has driven investment in sophisticated cell management and manufacturing techniques.
The nickel paradox: The shift to higher-nickel cathodes to reduce cobalt dependency has made nickel itself strategically critical. Battery-grade nickel (Class 1, ≥99.8% purity) disruption would impact EV production more immediately than almost any other mineral disruption.
Domestic Supply
The Duluth Complex of northeastern Minnesota holds one of the world's premier undeveloped nickel resources — with billions of pounds of recoverable nickel on American soil alongside copper, cobalt, and platinum group metals. The Eagle Mine in Michigan is the only active US nickel mine. Scaling domestic nickel alongside battery-grade nickel sulfate refining represents a multi-billion dollar strategic imperative.