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Tesla Gigafactory Nevada battery cell production line (Photo: Super Factories) Tesla Gigafactory Nevada battery cell production line (Photo: Super Factories)

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Tesla’s cobalt-free efforts are being closely watched by LG Chem, Samsung ahead of Battery Day

Tesla Gigafactory Nevada battery cell production line (Credit: Super Factories)

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It appears that it is not only the electric vehicle community that is eagerly anticipating Tesla’s upcoming Battery Day event. Considering the company’s place in the EV movement, as well as its efforts in pursuing a cobalt-free solution for batteries, industry leaders like Samsung and LG Chem are reportedly watching Tesla and its battery announcements closely.

Battery Day has been mentioned by Elon Musk multiple times in the past, and last month, the company noted that the highly-anticipated event will be held on September 22. The CEO has informed analysts that Battery Day will include a “big reveal” of developments in Tesla’s battery efforts. The effects of such developments on the battery supply chain are also expected to be discussed. 

Tesla has kept details of Battery Day secret, though industry officials have noted that details on new cobalt-free batteries will be revealed at the upcoming event. Tesla has been working on reducing its batteries’ cobalt content for years, as evidenced by a study from a German firm that determined that Model 3 batteries have 75% less cobalt than the cells used by companies like Volkswagen. In the second-quarter earnings call, Elon Musk noted that eventually, cobalt will be phased out completely. 

EV battery makers such as LG Chem and Samsung have mostly favored nickel manganese cobalt (NMC) or nickel cobalt aluminum (NCA) batteries over cobalt-free lithium iron phosphate (LFP) chemistry due to their higher energy density, which allows vehicles to travel longer distances. LFP batteries are more environmentally-friendly and cost-effective, but they tend to be limited when it comes to range. This status quo seems poised to change with Battery Day, at least if speculations prove accurate. 

Reports have emerged stating that CATL, one of Tesla’s battery partners in China, has begun supplying LPF batteries for the electric car maker’s locally-produced Model 3. Elon Musk emphasized this in the Q2 2020 earnings call, when he stated that Tesla will be boosting volume production in China of LFP battery packs for the Model 3. By the end of July, Panasonic, Tesla’s longtime battery partner, informed Reuters that it will be commercializing a cobalt-free battery in two to three years for the electric car maker. 

Amidst these reports, industry leaders like LG Chem and Samsung are now facing what could very well be a crossroads with their battery strategy. If Tesla has come up with a way to solve the shortcomings of LFP batteries, there is a good chance that the battery industry could also start moving away from cobalt. Tesla, after all, is one of the world’s leading electric car maker, and its EV and energy storage business are both undergoing an aggressive expansion. Cobalt is also a controversial material to begin with, thanks to questionable mining practices in areas such as the Congo.

Tesla Gigafactory Nevada battery cell production line (Credit: Super Factories)

That being said, LG Chem has stated that it still believes that NMC chemistry will remain the mainstream in the global market due to its energy density advantages. “Though we are producing LFP batteries too, these have their shortcomings in energy density and weight. We believe NCM will remain the mainstream in the global EV battery market,” the company stated during its second-quarter conference call. 

Samsung SDI was on the same page, stating that it will be focusing on NCA technology. Citing an industry official who requested anonymity, The Korea Times noted that Samsung is paying close attention to what Tesla will be announcing and unveiling on Battery Day. 

“Many battery firms have tried to upgrade the energy density of LFP chemistry, but they have yet to have meaningful outcomes. Tesla is now saying it is increasing its reliance on LFP batteries and is anticipated to come up with information on new cobalt-free batteries during Battery Day.  This can either mean that Tesla and CATL have come up with technology to improve the efficiency of LFP batteries or unprecedented technology in removing cobalt,” he said. “Since either way will likely affect the industrial trend, domestic companies are paying attention to what Tesla will reveal during the event,” the industry insider stated. 

Tesla’s Battery Day event is expected to be held on September 22, 2020. A live audience is expected to be present, though the event will also be live-streamed. 

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Simon is an experienced automotive reporter with a passion for electric cars and clean energy. Fascinated by the world envisioned by Elon Musk, he hopes to make it to Mars (at least as a tourist) someday. For stories or tips--or even to just say a simple hello--send a message to his email, simon@teslarati.com or his handle on X, @ResidentSponge.

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Tesla rolls out new Supercharging safety feature in the U.S.

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tesla's nacs charging connector
Credit: Tesla

Tesla has rolled out a new Supercharging safety feature in the United States, one that will answer concerns that some owners may have if they need to leave in a pinch.

It is also a suitable alternative for non-Tesla chargers, like third-party options that feature J1772 or CCS to NACS adapters.

The feature has been available in Europe for some time, but it is now rolling out to Model 3 and Model Y owners in the U.S.

With Software Update 2026.2.3, Tesla is launching the Unlatching Charge Cable function, which will now utilize the left rear door handle to release the charging cable from the port. The release notes state:

“Charging can now be stopped and the charge cable released by pulling and holding the rear left door handle for three seconds, provided the vehicle is unlocked, and a recognized key is nearby. This is especially useful when the charge cable doesn’t have an unlatch button. You can still release the cable using the vehicle touchscreen or the Tesla app.”

The feature was first spotted by Not a Tesla App.

This is an especially nice feature for those who commonly charge at third-party locations that utilize plugs that are not NACS, which is the Tesla standard.

For example, after plugging into a J1772 charger, you will still be required to unlock the port through the touchscreen, which is a minor inconvenience, but an inconvenience nonetheless.

Additionally, it could be viewed as a safety feature, especially if you’re in need of unlocking the charger from your car in a pinch. Simply holding open the handle on the rear driver’s door will now unhatch the port from the car, allowing you to pull it out and place it back in its housing.

This feature is currently only available on the Model 3 and Model Y, so Model S, Model X, and Cybertruck owners will have to wait for a different solution to this particular feature.

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LG Energy Solution pursuing battery deal for Tesla Optimus, other humanoid robots: report

Optimus is expected to be one of Tesla’s most ambitious projects, with Elon Musk estimating that the humanoid robot could be the company’s most important product.

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Credit: Tesla Optimus/X

A recent report has suggested that LG Energy Solution is in discussions to supply batteries for Tesla’s Optimus humanoid robot.

Optimus is expected to be one of Tesla’s most ambitious projects, with Elon Musk estimating that the humanoid robot could be the company’s most important product.

Humanoid robot battery deals

LG Energy Solution shares jumped more than 11% on the 28th after a report from the Korea Economic Daily claimed that the company is pursuing battery supply and joint development agreements with several humanoid robot makers. These reportedly include Tesla, which is developing Optimus, as well as multiple Chinese robotics companies.

China is already home to several leading battery manufacturers, such as CATL and BYD, making the robot makers’ reported interest in LG Energy Solution quite interesting. Market participants interpreted the reported outreach as a signal that performance requirements for humanoid robots may favor battery chemistries developed by companies like LG.

LF Energy Solution vs rivals

According to the report, energy density is believed to be the primary reason humanoid robot developers are evaluating LG Energy Solution’s batteries. Unlike electric vehicles, humanoid robots have significantly less space available for battery packs while requiring substantial power to operate dozens of joint motors and onboard artificial intelligence processors.

LG Energy Solution’s ternary lithium batteries offer higher energy density compared with rivals’ lithium iron phosphate (LFP) batteries, which are widely used by Chinese EV manufacturers. That advantage could prove critical for humanoid robots, where runtime, weight, and compact packaging are key design constraints.

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Tesla receives approval for FSD Supervised tests in Sweden

Tesla confirmed that it has been granted permission to test FSD Supervised vehicles across Sweden in a press release.

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Credit: Grok Imagine

Tesla has received regulatory approval to begin tests of its Full Self-Driving Supervised system on public roads in Sweden, a notable step in the company’s efforts to secure FSD approval for the wider European market. 

FSD Supervised testing in Sweden

Tesla confirmed that it has been granted permission to test FSD Supervised vehicles across Sweden following cooperation with national authorities and local municipalities. The approval covers the Swedish Transport Administration’s entire road network, as well as urban and highways in the Municipality of Nacka.

Tesla shared some insights into its recent FSD approvals in a press release. “The approval shows that cooperation between authorities, municipalities and businesses enables technological leaps and Nacka Municipality is the first to become part of the transport system of the future. The fact that the driving of the future is also being tested on Swedish roads is an important step in the development towards autonomy in real everyday traffic,” the company noted. 

With approval secured for FSD tests, Tesla can now evaluate the system’s performance in diverse environments, including dense urban areas and high-speed roadways across Sweden, as noted in a report from Allt Om Elbil. Tesla highlighted that the continued development of advanced driver assistance systems is expected to pave the way for improved traffic safety, increased accessibility, and lower emissions, particularly in populated city centers.

Tesla FSD Supervised Europe rollout

FSD Supervised is already available to drivers in several global markets, including Australia, Canada, China, Mexico, New Zealand, and the United States. The system is capable of handling city and highway driving tasks such as steering, acceleration, braking, and lane changes, though it still requires drivers to supervise the vehicle’s operations.

Tesla has stated that FSD Supervised has accumulated extensive driving data from its existing markets. In Europe, however, deployment remains subject to regulatory approval, with Tesla currently awaiting clearance from relevant authorities.

The company reiterated that it expects to start rolling out FSD Supervised to European customers in early 2026, pending approvals. It would then be unsurprising if the company secures approvals for FSD tests in other European territories in the coming months. 

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