How Electric Vehicles Move Lithium: From the Car to the Brine

The link between the electric car and the mine

The connection between electric mobility and lithium is direct and structural: the lithium-ion battery is, today, the dominant technology for storing energy in an electric vehicle (EV). Without lithium there is no competitive battery in terms of energy density, weight and cost, and without a battery there is no viable electric car at mass scale. That is why every decision made by the auto industry—from Detroit to Shanghai—ultimately echoes across the salt flats of the South American Puna.

This chain explains why lithium stopped being a niche metal used in ceramics and lubricants and became a strategic input. The energy transition transformed demand: the electrification of transport now represents the largest share of global lithium consumption and is the engine that defines the sector's prices and investments.

How much lithium an electric vehicle uses

An average battery electric vehicle (BEV) requires the equivalent of between 8 and 12 kilograms of lithium metal, depending on the size of the battery pack and the chemistry used. Expressed in lithium carbonate equivalent (LCE)—the market's standard unit—that translates roughly to 40 to 60 kilos of LCE per vehicle. A large, long-range electric SUV can exceed those figures, while a plug-in hybrid needs considerably less.

The figure varies with the cell chemistry: NMC (nickel-manganese-cobalt) and LFP (lithium-iron-phosphate) batteries have different lithium requirements per kilowatt-hour. Even so, they all share a common denominator: they depend on lithium. Improvements in efficiency and recycling can moderate consumption per unit, but they do not eliminate the need for the metal in the short and medium term.

Demand projections

Estimates from leading consultancies and agencies agree on a strong growth trajectory. Global lithium demand could multiply several times over by 2030 compared with levels at the start of this decade, driven almost entirely by EV batteries and, to a lesser extent, by stationary storage in power grids.

The key point is the composition of that demand: if a decade ago traditional industrial uses dominated consumption, today batteries account for the largest share and their participation will keep expanding. This makes the lithium market extraordinarily sensitive to the pace of electric vehicle adoption, far more than to any other factor.

Sensitivity to policy and subsidies

EV adoption responds not only to technology or price but also to government decisions. Purchase subsidies, tax exemptions, increasingly strict emissions standards and electrification mandates—such as the targets to ban combustion cars in several jurisdictions—accelerate demand. A cut in incentives, on the other hand, can cool sales in a market within just a few quarters.

This dependence on policy introduces volatility. The lithium market has shown sharp price cycles, with euphoric peaks and pronounced corrections, partly because regulatory signals quickly translate into demand expectations. For producers and investors, reading the policy map of the major markets—China, the European Union and the United States—is as important as understanding the geology of a salt flat.

From short-term volatility to the underlying trend

It is worth distinguishing the noise from the signal. In the short term, lithium prices can swing sharply due to mismatches between the new supply coming online and the speed of EV adoption. These fluctuations are real and affect investment decisions, but they do not alter the structural direction.

The underlying trend points to a growing electrification of transport over the coming decades. Even under conservative scenarios, the volume of lithium needed to sustain the global electric fleet requires steadily expanding production capacity. For countries with resources, this represents a long-term window of opportunity, provided they manage to develop projects at competitive costs.

Argentina and the Puna: from salt flat to steering wheel

Argentina is the world's fifth-largest lithium producer and part of the so-called Lithium Triangle alongside Chile and Bolivia. Its advantage lies in the brines of the Puna—in Salta, Jujuy and Catamarca—which allow for relatively low-cost extraction compared with hard rock. Every tonne of lithium carbonate that comes out of these salt flats may end up, give or take a few kilos, in the batteries of dozens of electric vehicles on other continents.

The challenge for the country is to turn that resource into a sustainable position within the global chain. Instruments such as the RIGI, in force since 2024, seek to bring predictability to the large capital investments the sector requires. If EV demand maintains its upward trajectory, the Argentine Puna will remain a quiet but decisive piece of global electric mobility: the place where, quite literally, the journey of every electric car begins.