The battle for lithium: US and China fight over Argentina’s white gold (english.elpais.com)

submitted 6 months ago by MicroWave@lemmy.world to c/world@lemmy.world

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Nearly untouched for millions of years, the salt flats of the inhospitable Puna plateaus are being transformed into a dynamic center of lithium production, bringing with them both economic opportunities and concerns about environmental damage. North of the ruins of Mina La Casualidad, several heavy-duty trucks cross the mountains towards the Mariana mine, a large lithium project under construction, operated by the Chinese company Ganfeng, one of the largest producers of lithium in the world.

The mine is one of the five projects that the lithium giant is carrying out in Argentina, a country that has become the scene of a strategic rivalry between China and the United States, where both seek to obtain the necessary supplies for the manufacture of batteries.

Argentina, the fourth largest lithium producer in the world, holds a fifth of the world’s reserves. It is the second largest deposit on the planet. As the country’s production soars, both Beijing and Washington want to take a piece of Argentina’s “white gold.”

China, the main producer of lithium batteries and the country that refines the most lithium in the world, has a clear advantage when it comes to investing in Argentina’s nascent industry. But the U.S., which is seeking to develop its own clean technology production chains outside of Chinese control, is trying to counter Beijing’s growing influence in South America with new investments.

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[-] FlyingSquid@lemmy.world 11 points 6 months ago

Lithium batteries are old news and this market is going to crash. China is already selling two EVs using sodium ion batteries. It's only a matter of time before such technology can be used at smaller scales.

https://cleantechnica.com/2023/12/29/electric-cars-powered-by-sodium-ion-batteries-go-on-sale-in-china/

[-] cygnus@lemmy.ca 9 points 6 months ago

In some applications sure, but Lithium batteries are denser. Lipo in particular has no substitute yet.

[-] tal@lemmy.today 5 points 6 months ago* (last edited 6 months ago)

China is already selling two EVs using sodium ion batteries.

Sodium ion batteries won't be a general drop-in substitute in vehicles for lithium.

It might be possible to use sodium-ion batteries in place of some not-energy-density critical lithium-ion applications (the way lead-acid is currently used for some lithium-ion applications), and that'd free up some materials for EV use.

https://physics.aps.org/articles/v17/73

However, sodium and lithium atoms have differences, two of which are relevant for battery performance. The first difference is in the so-called redox potential, which characterizes the tendency for an atom or molecule to gain or lose electrons in a chemical reaction. The redox potential of sodium is 2.71 V, about 10% lower than that of lithium, which means sodium-ion batteries supply less energy—for each ion that arrives in the cathode—than lithium-ion batteries. The second difference is that the mass of sodium is 3 times that of lithium.

Together these differences result in an energy density for sodium-ion batteries that is at least 30% lower than that of lithium-ion batteries [1]. When considering electric vehicle applications, this lower energy density means that a person can’t drive as far with a sodium-ion battery as with a similarly sized lithium-ion battery. In terms of this driving range, “sodium can’t beat lithium,” Tarascon says.

In time, sodium-ion batteries will improve, but their driving range will never surpass the top-of-the-line lithium-ion batteries, Tarascon says. He imagines instead that sodium-ion technology will fill specific niches, such as batteries for smaller, single-person electric vehicles or for vehicles that have a range of only 30–50 miles (50–80 km). Weil agrees, but he says that society may have to change the way it views automobiles. “We cannot only point to the technology developers and say, ‘We need more efficiency.’ It’s even more important to stress that we need more ‘sufficiency,’ which is people being satisfied with a small car,” he says.

this post was submitted on 23 Jun 2024

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