Are lithium reserves being depleted quickly?
Are lithium reserves being depleted quickly? According to data from 2020, the world's identified lithium reserves totaled 8 million tons. However, some concerns have been raised about lithium supply keeping up with growing demand.
One concern is that an electric vehicle requires around 60kg of lithium. Global auto sales in 2021 reached 76 million vehicles. If this sales rate continued and all vehicles were electric, the world's lithium reserves based on current figures would only last around 20 years.
However, the lithium industry is not too worried about reserves being depleted. That's because the amount of identified lithium reserves has been increasing annually as more is discovered and explored. In 2014, identified reserves were only 3.9 million tons, increasing to 6.2 million tons in 2018 and then 8 million tons in 2020.
This shows that the identified reserves, and likely the total amount on Earth, are much larger than current figures suggest. As lithium demand has only recently grown with electric vehicles, exploration and mining are still in early stages. Over the coming decades, identified lithium reserves could grow rapidly as more is discovered.
Some may still worry about what if reserves do not continue increasing. However, there is another important metric - lithium abundance in the Earth's crust, which determines overall deposit size. Among all elements, lithium ranks 33rd in abundance. It is estimated to be 25~40% as abundant as copper in the crust. This makes it more common than elements like lead, boron and tin.
With new lithium deposits being found and advancing mining technologies, lithium is very unlikely to run out for at least 100 years based on its natural abundance levels. As exploration ramps up to meet growing demand, lithium supply is expected to keep pace without major shortages.
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