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Lithium mine near Tesla Gigafactory plans to break ground as global shortage rears head
Just 150 miles north of Tesla’s Gigafactory, a plan is brewing to a build a massive mine capable of growing the world’s lithium carbonate supply by a full 15% as early as 2022 and more than 20% by 2026, compared to 2018. Tesla could, in other words, find itself neighbors with one of the largest concentrated supplies of lithium carbonate in the world less than a decade from now.
Known as Lithium Americas, the company behind the study has conservatively estimated that it could break ground on its prospective Northern Nevada Li2CO3 mine as early as the end of 2020 and ramp up to an annual output of 30,000 metric tons of the basic Li-ion battery precursor just 21 months after that. The mine’s output would then double by 2026, coming to rest at a maximum annual lithium carbonate output of 60,000 tons.
Theoretical estimates conducted by a number of academic parties in the 2010s have shown that any given high-quality lithium-ion battery would be expected to require 2-3 kilograms of lithium carbonate per kWh of final capacity, although the absolute physical minimum is closer to 0.4 kg. To sustain Gigafactory 1’s 35 GWh 2018 production goal, that single factory alone could require between 60,000 and 85,000 tons of lithium carbonate annually to sustain its battery production operations alone.
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- The Model 3 assembly line inside the Sprung Structure in Tesla’s Fremont factory. [Credit: The New York Times]
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- Building giant factories like Gigafactory 2 demands major capital investments that often require private equity sales. (Tesla)
To put this requirement in context, the entire global supply of lithium carbonate is expected to peak at ~250,000 tons in 2018 after astounding YoY production growth of 21.5% from 2016 to 2017 – Tesla’s demands this year could thus easily swallow 25-30% of the entire global lithium carbonate supply.
Despite those staggering numbers, Gigafactory 1 production is still expected to ramp (albeit based on optimistic 2016 Elon Musk numbers) as high as 105 GWh of cells and 150 GWh of packs annually by the time it is fully completed, likely a few years after the original 2020 estimate. Roughly 7 times the volume of Tesla’s 2018 production goals for the massive factory, sustaining that final volume of production (255 GWh annually) would literally require the global supply of lithium carbonate to grow by a bare minimum of 250% in less than half a decade. To reiterate, that is for a single Gigafactory, of which Tesla plans to construct several more in China, Europe, and elsewhere.
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- A peek inside a segment of a Tesla Model 3 battery pack.
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- Gayle King tours the Tesla Model 3 production line with CEO Elon Musk at the Fremont factory [Source: CBS This Morning]
Put simply, Tesla is going to need every ounce of lithium supply they can get their hands on, and Lithium Americas’ prospective Nevada offering could theoretically supplement that total required supply by as much as 10% by the mid-2020s. Tesla, however, is already hard at work attempting to secure a strong and satisfactory supply of lithium and other rare earth metals and materials required to produce premium-grade Li-on batteries.
Tesla already has agreements to buy lithium from a somewhat smaller Nevadan effort from Pure Energy Minerals (phase 1 production NET 2020) and Bacanora’s Sonora Lithium prospect (NET 2020), lithium hydroxide (a product of lithium carbonate) from Australian upstart Kidman Resources (NET 2021), and also plans to invest directly in lithium heavyweight SQM to strengthen a foothold in Chile, the current owner of ~50% of the world’s lithium mining rights.
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Tesla confirms that it finally solved its 4680 battery’s dry cathode process
The suggests the company has finally resolved one of the most challenging aspects of its next-generation battery cells.
Tesla has confirmed that it is now producing both the anode and cathode of its 4680 battery cells using a dry-electrode process, marking a key breakthrough in a technology the company has been working to industrialize for years.
The update, disclosed in Tesla’s Q4 and FY 2025 update letter, suggests the company has finally resolved one of the most challenging aspects of its next-generation battery cells.
Dry cathode 4680 cells
In its Q4 and FY 2025 update letter, Tesla stated that it is now producing 4680 cells whose anode and cathode were produced during the dry electrode process. The confirmation addresses long-standing questions around whether Tesla could bring its dry cathode process into sustained production.
The disclosure was highlighted on X by Bonne Eggleston, Tesla’s Vice President of 4680 batteries, who wrote that “both electrodes use our dry process.”
Tesla first introduced the dry-electrode concept during its Battery Day presentation in 2020, pitching it as a way to simplify production, reduce factory footprint, lower costs, and improve energy density. While Tesla has been producing 4680 cells for some time, the company had previously relied on more conventional approaches for parts of the process, leading to questions about whether a full dry-electrode process could even be achieved.
4680 packs for Model Y
Tesla also revealed in its Q4 and FY 2025 Update Letter that it has begun producing battery packs for certain Model Y vehicles using its in-house 4680 cells. As per Tesla:
“We have begun to produce battery packs for certain Model Ys with our 4680 cells, unlocking an additional vector of supply to help navigate increasingly complex supply chain challenges caused by trade barriers and tariff risks.”
The timing is notable. With Tesla preparing to wind down Model S and Model X production, the Model Y and Model 3 are expected to account for an even larger share of the company’s vehicle output. Ensuring that the Model Y can be equipped with domestically produced 4680 battery packs gives Tesla greater flexibility to maintain production volumes in the United States, even as global battery supply chains face increasing complexity.
Elon Musk
Tesla Giga Texas to feature massive Optimus V4 production line
This suggests that while the first Optimus line will be set up in the Fremont Factory, the real ramp of Optimus’ production will happen in Giga Texas.
Tesla will build Optimus 4 in Giga Texas, and its production line will be massive. This was, at least, as per recent comments by CEO Elon Musk on social media platform X.
Optimus 4 production
In response to a post on X which expressed surprise that Optimus will be produced in California, Musk stated that “Optimus 4 will be built in Texas at much higher volume.” This suggests that while the first Optimus line will be set up in the Fremont Factory, and while the line itself will be capable of producing 1 million humanoid robots per year, the real ramp of Optimus’ production will happen in Giga Texas.
This was not the first time that Elon Musk shared his plans for Optimus’ production at Gigafactory Texas. During the 2025 Annual Shareholder Meeting, he stated that Giga Texas’ Optimus line will produce 10 million units of the humanoid robot per year. He did not, however, state at the time that Giga Texas would produce Optimus V4.
“So we’re going to launch on the fastest production ramp of any product of any large complex manufactured product ever, starting with building a one-million-unit production line in Fremont. And that’s Line one. And then a ten million unit per year production line here,” Musk stated.
How big Optimus could become
During Tesla’s Q4 and FY 2025 earnings call, Musk offered additional context on the potential of Optimus. While he stated that the ramp of Optimus’ production will be deliberate at first, the humanoid robot itself will have the potential to change the world.
“Optimus really will be a general-purpose robot that can learn by observing human behavior. You can demonstrate a task or verbally describe a task or show it a task. Even show it a video, it will be able to do that task. It’s going to be a very capable robot. I think long-term Optimus will have a very significant impact on the US GDP.
“It will actually move the needle on US GDP significantly. In conclusion, there are still many who doubt our ambitions for creating amazing abundance. We are confident it can be done, and we are making the right moves technologically to ensure that it does. Tesla, Inc. has never been a company to shy away from solving the hardest problems,” Musk stated.
Elon Musk
Rumored SpaceX-xAI merger gets apparent confirmation from Elon Musk
The comment follows reports that the rocket maker is weighing a transaction that could further consolidate Musk’s space and AI ventures.
Elon Musk appeared to confirm reports that SpaceX is exploring a potential merger with artificial intelligence startup xAI by responding positively to a post about the reported transaction on X.
Musk’s comment follows reports that the rocket maker is weighing a transaction that could further consolidate his space and AI ventures.
SpaceX xAI merger
As per a recent Reuters report, SpaceX has held discussions about merging with xAI, with the proposed structure potentially involving an exchange of xAI shares for SpaceX stock. The value, structure, and timing of any deal have not been finalized, and no agreement has been signed.
Musk appeared to acknowledge the report in a brief reply on X, responding “Yeah” to a post that described SpaceX as a future “Dyson Swarm company.” The comment references a Dyson Swarm, a sci-fi megastructure concept that consists of a massive network of satellites or structures that orbit a celestial body to harness its energy.
Reuters noted that two entities were formed in Nevada on January 21 to facilitate a potential transaction for the possible SpaceX-xAI merger. The discussions remain ongoing, and a transaction is not yet guaranteed, however.
AI and space infrastructure
A potential merger with xAI would align with Musk’s stated strategy of integrating artificial intelligence development with space-based systems. Musk has previously said that space-based infrastructure could support large-scale computing by leveraging continuous solar energy, an approach he has framed as economically scalable over time.
xAI already has operational ties to Musk’s other companies. The startup develops Grok, a large language model that holds a U.S. Department of Defense contract valued at up to $200 million. AI also plays a central role in SpaceX’s Starlink and Starshield satellite programs, which rely on automation and machine learning for network management and national security applications.
Musk has previously consolidated his businesses through share-based transactions, including Tesla’s acquisition of SolarCity in 2016 and xAI’s acquisition of X last year. Bloomberg has also claimed that Musk is considering a merger between SpaceX and Tesla in the future.
Tesla confirms that it finally solved its 4680 battery’s dry cathode process
Tesla Giga Texas to feature massive Optimus V4 production line
