The minerals mined for batteries include lithium, cobalt, nickel, graphite, manganese, copper, and iron. Each plays a specific role in how a battery stores and releases energy, and they come from vastly different parts of the world using different extraction methods. The exact mix depends on the battery chemistry, but lithium and graphite appear in nearly every lithium-ion battery on the market today.
Lithium: The Mineral Every Battery Needs
Lithium is the lightest metal on Earth and the one element shared by virtually all rechargeable battery chemistries used in phones, laptops, and electric vehicles. It moves between the two ends of a battery during charging and discharging, which is why these are called “lithium-ion” batteries.
There are two main ways to pull lithium from the ground. In Chile and Argentina, companies pump salty underground water (called brine) to the surface and spread it across large evaporation pools. Over months, the sun and wind evaporate the water, leaving behind lithium and other minerals. In Australia, which overtook Chile as the world’s top producer in 2017, miners blast a lithium-rich mineral called spodumene out of open pits, then crush and chemically process it.
Brine extraction uses enormous quantities of water. Research on Chile’s Salar de Atacama found a total water footprint of roughly 442 cubic meters per ton of lithium product, with brine production alone accounting for about 326 cubic meters of that total. That’s a serious concern in the Atacama Desert, one of the driest places on the planet. Hard-rock spodumene mining avoids the water intensity but requires more energy for crushing, heating, and chemical processing.
Cobalt: Concentrated in One Country
Cobalt helps stabilize a battery’s cathode, the component that determines how much energy a cell can store. It prevents the internal structure from breaking down during repeated charge cycles, which extends the battery’s lifespan.
The supply chain for cobalt is unusually concentrated. The Democratic Republic of Congo holds some of the world’s largest reserves and supplies roughly 50 to 70 percent of the global total. Most cobalt isn’t mined on its own. It’s extracted as a byproduct of copper and nickel mining, meaning cobalt supply is partly tied to demand for those other metals. The heavy reliance on a single country, combined with well-documented concerns about labor conditions in some Congolese mines, has pushed battery makers to develop chemistries that reduce or eliminate cobalt entirely.
Nickel: The Energy Density Booster
Nickel increases the amount of energy a battery can pack into a given space. Higher nickel content in a cathode generally means longer driving range for an electric vehicle, which is why many premium EVs use nickel-rich battery chemistries.
Not all nickel works for batteries, though. The industry distinguishes between Class 1 nickel (high purity, around 99 percent) used in batteries and high-tech alloys, and Class 2 nickel (lower purity) used mainly for stainless steel. Indonesia and the Philippines are the world’s largest nickel producers overall, while countries like Madagascar and South Africa produce Class 1 nickel suitable for battery supply chains.
In 2021, batteries accounted for only about 7 percent of total nickel consumption. That share is expected to climb to around 40 percent by 2040, potentially doubling overall nickel demand to roughly six million tonnes per year. That rapid growth is one reason nickel supply is a major focus for automakers and battery manufacturers.
Graphite: The Overlooked Essential
While lithium gets the attention, graphite makes up the largest share of a battery by weight. It forms the anode, the other electrode that stores lithium ions when the battery is charged. Every lithium-ion battery needs it.
Natural graphite is mined from the earth, and the supply is heavily dominated by China, which produced 79.4 percent of the global total in 2024, or about 1,270 thousand tonnes. Madagascar, Mozambique, and Brazil are distant runners-up. Natural graphite, once purified, offers better electrical and thermal conductivity than synthetic alternatives. Synthetic graphite is manufactured from petroleum coke at very high temperatures, which makes it energy-intensive and more expensive, but gives manufacturers more control over quality and avoids reliance on mined supply.
Manganese, Iron, and Phosphorus
Manganese is a cathode material used in several battery types. In lithium-manganese-oxide batteries, it provides a combination of decent energy density, low cost, and long lifespan. It’s typically produced from high-grade manganese ore (around 50 percent manganese content) that occurs naturally as minerals like pyrolusite. South Africa holds massive reserves, and the ore is relatively abundant compared to cobalt or lithium.
Iron and phosphorus are the key ingredients in lithium iron phosphate (LFP) batteries, a chemistry that has surged in popularity. LFP batteries skip cobalt and nickel entirely, relying instead on iron, phosphorus, and lithium. They’re valued for their safety (they’re far less prone to catching fire), long cycle life, and the wide availability of their raw materials. Iron is one of the most abundant elements in the Earth’s crust, and phosphorus is mined globally for fertilizer. The tradeoff is that LFP batteries store less energy per kilogram than nickel-rich chemistries, so they’re most common in standard-range EVs and energy storage systems rather than long-range luxury vehicles.
Copper: The Wiring Behind Every Battery
Copper isn’t inside the battery cell itself, but it’s critical to the system. It forms the current collectors inside battery packs and runs throughout the vehicle’s electrical wiring, motors, and charging infrastructure. A traditional gasoline car uses about 23 kilograms of copper. A battery electric vehicle uses roughly 83 kilograms, more than three times as much. Battery-powered electric buses can require 224 to 369 kilograms depending on battery size.
Chile, Peru, and the DRC are the world’s leading copper producers. The sharp increase in copper demand from electrification is adding pressure to a supply chain that already serves construction, electronics, and power grids.
How Battery Chemistry Determines What Gets Mined
The specific minerals needed depend on which cathode chemistry a manufacturer chooses. The most common types break down like this:
- NMC (nickel, manganese, cobalt): Used in many EVs for its balance of energy density and lifespan. Requires all three metals plus lithium and graphite.
- NCA (nickel, cobalt, aluminum): High energy density, used by some premium EV makers. Still cobalt-dependent, though in smaller amounts than older formulas.
- LFP (lithium, iron, phosphate): No cobalt or nickel. Lower energy density but cheaper, safer, and longer-lasting. Growing rapidly in market share.
- LMO (lithium, manganese oxide): Uses manganese as the primary cathode metal. Common in power tools and some EVs.
The industry trend is clearly moving toward reducing dependence on the scarcest, most geopolitically concentrated minerals, particularly cobalt. LFP’s rise is a direct result of that push.
Recycling as a Future Mine
As millions of EV batteries reach the end of their useful life (typically after 10 to 15 years), recycling is becoming an increasingly important source of battery minerals. Current recycling processes recover 80 to 95 percent of the minerals from collected batteries. For nickel and cobalt specifically, some operations claim recovery rates of 99.6 percent. Lithium recovery has historically been trickier, but several companies have reached 95 percent or higher in recent demonstrations.
Average recovery rates across the industry are expected to climb from the current 80 to 95 percent range toward 95 to 99 percent over the next decade. That won’t eliminate the need for mining, especially as battery demand keeps growing, but it will increasingly supplement freshly mined supply and reduce the pressure on the most constrained resources like cobalt and lithium.