Lithium’s 134-Mine Challenge: Benchmark Says $100B Investment Must Flow Through Price Cycles

London-based research firm Benchmark Mineral Intelligence released a forecast projecting that global lithium demand will more than triple by 2050 as EV adoption accelerates. Benchmark expects consumption to climb from 2.11 million tonnes of lithium carbonate equivalent (LCE) this year to nearly 7 million tonnes by mid-century. At an average annual mine capacity of 36,000 tonnes, meeting that demand implies bringing one new mine online roughly every two months over the next 24 years, or 134 mines in total, with more than $100 billion in investment required.

On the demand side, EVs' share is forecast to rise from 55% today to 76% by 2050, while batteries already account for 92% of lithium consumption, up from about 70% in 2020. Stationary energy storage demand has grown more than 60% annually over the past two years, but Benchmark expects that growth to slow to about 5% a year by the end of this decade.

On the supply side, Australia, the largest lithium mining jurisdiction, accounts for 29% of global mined supply but could fall to 20% by 2050, mainly due to depletion of existing mines and expansion in competing regions. Cameron Perks, Benchmark's lithium product director, said many Australian mines will be exhausted before 2050, price volatility is making financiers hesitant, and the regulatory burden is growing. China is expected to maintain about a quarter of global mined production. North America's share of mined supply could rise from 1.7% to 13% by 2050, while Europe, at under 1% of mined supply, is expected to reach only 5.5% by 2050, still below its 8% share of cell manufacturing demand. Perks said challenges in these regions, including unproven technologies and environmental and community opposition, "are not insurmountable, but they cause significant delays, meaning mines built in these regions simply cost more."

Recycling is viewed as the largest offset to new mine demand. Benchmark expects recycled material to account for nearly half of lithium supply by mid-century, but only if sufficient used batteries become available and recycling remains commercially competitive. Its capital expenditure analysis estimates about $64 billion will be needed to satisfy lithium demand through 2040. The timing of battery retirements remains a key uncertainty, as materials cannot be recovered until batteries reach end of life. Perks said, "Every tonne that recycling doesn't deliver has to come from a mine."

In an upside scenario driven by supportive government policies for EVs and energy storage, demand could approach 9 million tonnes LCE by 2050, requiring about 180 new mines and more than $150 billion in investment. The central question, as framed by the report, is whether the industry can finance projects through volatile commodity cycles while scaling recycling, with AI, defence and the broader energy transition competing for the same capital.