Role in Lithium-Ion Batteries
Lithium is the element that makes lithium-ion batteries possible. In every cell, lithium ions shuttle between the cathode and anode during charge and discharge — this electrochemical migration is the fundamental mechanism of energy storage. In the cathode, lithium bonds with transition metals to form active materials: LiFePO₄ (LFP), LiNiMnCoO₂ (NMC), and others. In the electrolyte, lithium salts (most commonly LiPF₆) dissolve in organic solvents to create the ionic conductor bridging cathode and anode.
Strategic reality: Today, over 80% of global lithium refining sits in China, even for lithium mined elsewhere. Building domestic refining capacity is the single highest-leverage investment in American battery independence.
Domestic Supply Landscape
Thacker Pass, Nevada (Lithium Americas) holds one of the largest known lithium clay deposits globally — an estimated 16.1 million tonnes of lithium carbonate equivalent. Kings Mountain, North Carolina hosts spodumene pegmatite deposits historically supplying American battery precursors. The Salton Sea geothermal brines in California's Imperial Valley offer co-production with clean geothermal energy.
Supply Chain Security
Any disruption to lithium supply — whether through trade policy or resource nationalism — would halt battery production for EVs, grid storage, defense systems, and electronics simultaneously. Lithium's irreplaceable role and concentrated supply make it arguably the most strategically important battery mineral for American energy security planning.
The American Battery focus: Tracing lithium from American or allied mines through domestic or allied refiners to cell production — creating a fully auditable chain of custody for every kilogram of lithium carbonate.