Summary:Global lithium demand may more than triple by 2050, requiring 134 new lithium mines and record lithium mining investment. See how the lithium supply chain can respond....

Lithium mining investment, 134 new lithium mines and lithium supply chain to meet 2050 demand

Global lithium demand is expected to more than triple by 2050, requiring the equivalent of 134 new lithium mines and more than $100 billion in lithium mining investment as electric vehicle adoption accelerates, according to Benchmark Mineral Intelligence. Consumption is forecast to climb to nearly 7 million tonnes of lithium carbonate equivalent (LCE) by mid-century from 2.11 million tonnes this year. For mine operators, mineral processors and slurry pump buyers serving the lithium sector, this signals a long-term surge in new lithium mines and a more complex lithium supply chain — explore reliable processing and slurry handling equipment at www.xoslurrypump.com.

Lithium brine salt flat production site in Atacama,

A mine every two months for 24 years

At an average production capacity of 36,000 tonnes annually, the additional supply would require the equivalent of one new mine every two months over the next 24 years. "The biggest challenge is sustaining that investment through price cycles, while competing for capital with AI, defence and the wider energy transition," said Cameron Perks, Benchmark's product director for lithium. Financing constraints, lengthy permitting processes and competition for investment could complicate efforts to bring enough production online, particularly in Western markets seeking to reduce dependence on China.

Table 1: Benchmark lithium demand forecast (base case)

Where demand is heading

Electric vehicles are expected to account for 76% of lithium demand by 2050, compared with 55% today. Batteries already represent 92% of consumption, up from about 70% in 2020. Demand from stationary energy storage has expanded by more than 60% annually over the past two years, though growth is expected to moderate to roughly 5% a year through the end of the decade. This mix means the lithium battery supply chain will stay at the centre of the energy transition for decades.

How the supply map is shifting

The supply picture is changing. Australia, the world's largest lithium mining jurisdiction, is expected to account for 29% of global mined supply this year, but its share could decline to 20% by 2050 as existing operations deplete. China should maintain roughly a quarter of global mined production, while North America could increase its share of mined output to 13% by 2050 from just 1.7% today. Europe faces a similar challenge, contributing less than 1% of mined supply despite holding 7% of cell production demand.

Table 2: Mined lithium supply share shifts (Benchmark)

The challenges of building new mines

Developing new mines will be difficult in several regions because some promising deposits require unproven technologies or face environmental and community opposition. "These aren't insurmountable, but they create significant delays, and they mean mines built in these regions simply cost more," Perks said. Australia's position is particularly exposed: many of its mines will be depleting by 2050, and if the country does not back growth, other regions will take that share.

Upside scenario and the role of recycling

Benchmark's outlook could prove conservative if policy support drives stronger-than-expected consumption. Under its upside scenario, lithium demand could approach 9 million tonnes LCE by 2050, requiring the equivalent of about 180 new lithium mines and more than $150 billion in lithium mining investment. Recycling offers the largest potential offset: recovered material could account for almost half of lithium supply by mid-century, although that depends on battery retirement volumes and commercial competitiveness. Benchmark estimates that about $64 billion will be needed to satisfy lithium requirements through 2040.

What this means for the processing supply chain

For the mining and processing supply chain, the scale of this build-out is unprecedented. Each new lithium mine requires robust material handling — from brine pumps and evaporation systems to crushers, concentrators and durable slurry pumps that move abrasive ore and concentrates across plants. Reliable equipment will be critical to convert projected demand into delivered metal, especially in remote brine and hard-rock settings where uptime is everything.

Conclusion

In conclusion, the $100B question of who will build 134 new lithium mines highlights both the scale and the risk of the energy transition. The lithium supply chain must double down on lithium mining investment, project financing and processing capacity to meet lithium demand 2050. Sustaining investment through volatile price cycles, expanding recycling and building reliable equipment will ultimately determine whether production keeps pace with demand — and who wins the race to build the new lithium mines of the future.