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Tesla’s cobalt-free battery strategy is making Elon Musk an actual “iron man”

(Credit: Tesla)

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Tesla quietly revealed in its Q1 report that nearly half the vehicles it produced in the first quarter of 2022 were equipped with cobalt-free lithium iron phosphate (LFP) batteries. The news, however, was overshadowed in the news cycle, particularly by Tesla’s $19 billion revenue and CEO Elon Musk’s acquisition of social media platform Twitter. 

LFP batteries are not a new innovation, but it has not been used as much in areas outside China. According to data from Benchmark Mineral Intelligence (BMI), only 3% of electric vehicle batteries in the United States and Canada and 6% in the European Union are iron-based. In China, however, LFP batteries command 44% of the EV market. 

Tesla currently uses LFP batteries in its base vehicles, though Elon Musk has hinted that the EV company will be using more cobalt-free cells in more products. Considering the prolific nature of Tesla and its influence on the market, it would not be surprising if other EV makers also began exploring the option of using LFP batteries for their own cars. 

Amusingly enough, by playing a notable part in LFP battery adoption, it appears that Elon Musk has effectively become an “iron man” of sorts. 

According to a Reuters review of the EV market, Tesla is not alone in its support for LFP batteries. Over a dozen companies are reportedly considering building LFP battery cell plants in the United States and Europe in the next three years. And things will likely only pick up from there. Mujeeb Ijaz, the founder of US battery startup Our Next Energy, noted that LFP has a future in the EV industry. 

“I think lithium iron phosphate has a new life. It has a clear and long-term advantage for the electric vehicle industry,” he said. 

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There was a reason why LFP batteries took this long to gain ground. While LFP cells use cheaper materials, and while they could be consistently charged fully without much degradation, they tend to be larger, heavier, and generally hold less energy than nickel-cobalt-manganese (NCM) cells. Thus, electric cars that use LFP batteries tend to have shorter range. 

Tesla’s decision to use LFP batteries for its base vehicles could be considered a strategic move. Since the company is electively the undisputed leader in the electric vehicle sector, the roughly 150,000 cars it produced last quarter that were equipped with LFP batteries took a number of analysts and specialists by surprise. And similar to other innovations from the company, such as its use of megacasts, it appears that other carmakers will soon be following suit. 

EV startup Fisker, for one, noted that it is planning on using LFP batteries for its lower-range SUVs. CEO Henrik Fisker noted that the company is in discussions with battery suppliers from the United States, Canada, or Mexico. Fisker noted that LFP batteries are perfect for vehicles that are used by city-dwellers. 

“If I never leave Los Angeles, I never leave San Francisco, I never leave London … I think that’s where LFP comes in really well,” he said. 

Audi CEO Markus Duesmann, in comments that were shared last March, also spoke highly of LFP cells’ potential. “It may well be that we will see LFP in a larger portion of the fleet in the medium term. After the war, a new situation will emerge; we will adapt to that and choose battery technologies and specifications accordingly,” he said. 

Even BMW, which is arguably lagging in the electric vehicle race considering the pace of rivals such as Volkswagen and Daimler, is looking towards LFP batteries. Recent comments from BMW chief procurement officer Joachim Post indicated that the German automaker was analyzing the merits of iron-based cells. “We’re looking at different technologies to minimize the use of resources and also we’re looking at optimizing chemistry,” the executive said. 

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*Quotes courtesy of Reuters.

Don’t hesitate to contact us with news tips. Just send a message to simon@teslarati.com to give us a heads up.

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 Roadster’s new patent preps white-knuckle speeds, keeping it grounded

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Credit: @BLKMDL3/Twitter

Ahead of its highly anticipated unveiling, Tesla’s upcoming Roadster received a new patent that aims to keep it grounded while enabling white-knuckle speeds.

The patent, which was granted on September 29, is titled “Electric Car Fan,” bluntly stating its design but not its purpose, which is further detailed in the text of the application. Interestingly, it comes two weeks before the Roadster event, which was delayed due to unfavorable weather on Thursday, which could cause issues, as Tesla revealed the event must be held outdoors.

The purpose is to solve a problem that is relatively unique to high-performance electric cars. Instant motor torque is useless if the tires cannot plant that force, and conventional wings and underbody tunnels generate downforce only when air is already rushing past the car. At launch, in slow corners, and under hard braking from modest speed, passive aerodynamic additions contribute essentially very little to downforce.

Tesla’s filing says that its fans can produce the downforce needed, independent of vehicle velocity, then ease off so the same hardware does not pile on drag at highway speeds, an issue that can come from excessive body modifications.

The hardware outlined in the patent is a ducted-fan package that is placed into the rear of the vehicle. An underbody inlet between the rear wheels feeds a duct that rises to a wide outlet in the diffuser. In that outlet are four axial fans, which are divided by vertical strakes. They will pull air from under the floor and press the chassis onto the pavement.

The language in the patent claims it can cut drag rather than add to it while simultaneously increasing downforce.

Tesla Roadster event requires restricted airspace, and the FAA obliges

The fans run from the high-voltage battery and a vehicle control system, so output can be modulated rather than left on as a fixed penalty.

There are additional strengths that can come from this design, like extra tire load at low speed, which can contribute to even more face-melting acceleration rates, decrease stopping distance, and sharper turn-in before a wing has air to work with. Adjustable fan speed lets the car add grip only when needed, so it can be catered to the force of a turn or acceleration.

These designs were previously used, and banned, in some competitive settings. The Brabham BT46B was banned in F1 competition for using a similar fan design and being labeled as too effective.

Tesla still lists the Roadster as having a sub-two-second 0-60 MPH time and a 250-plus-MPH top speed, and there are expectations for a SpaceX cold-gas thruster package that could not only increase acceleration but potentially cause the vehicle to hover.

It is important to note that a patent is not a production part, and packaging four fans in a rear diffuser, managing noise, and potential debris are all things Tesla must consider. With that being said, the patent being granted shows Tesla is designing the Roadster to go fast, but it is also attempting to use unique strategies to combat any issues it might have at those speeds.

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Investor's Corner

Tesla showrooms picked clean ahead of Q3 end as demand looks strong

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Credit: @thaichiminh1907/X

Tesla (NASDAQ: TSLA) showrooms have been picked clean ahead of the end of the third quarter of the year, as demand looks to be strong and delivery estimates for new vehicles are pushed into late 2026 and early 2027.

Tesla appears to have sold out of many of its Model 3 and Model Y trim levels in the United States, as only the Model Y RWD and Model Y All-Wheel-Drive are available for delivery before the end of the year.

Additionally, many showrooms are either completely empty or void of all but just one demo unit within the buildings themselves in an effort to bolster what could be one of Tesla’s best quarters in vehicle deliveries in recent memory.

Additionally, when I spoke to the guys at Tesla Mechanicsburg two weeks ago, when I returned the Model Y L, their third hauler of the week had just arrived, and every vehicle on it, along with every vehicle in their delivery lot, was accounted for and had a name attached to it for delivery.

Tesla saw a 25 percent increase in deliveries in Q2 compared to the same quarter the year before. The vast majority of the 480,126 units it delivered, 467,762 vehicles to be exact, were the Model 3 and Model Y.

In Q3 2025, Tesla delivered 497,099 vehicles, once again a figure that was dominated by the company’s two mass-market vehicles. Analysts have unusually wide predictions for this quarter, likely because so many firms missed the Q2 delivery figure by such a substantial margin; Wall Street predicted 408,000 cars, while Tesla delivered 480,000.

Goldman Sachs has Tesla slotted for 435,000 deliveries in Q3, while JPMorgan said it anticipates 482,000. The median guess is about 449,000 deliveries for Q3.

Interested in ordering a Tesla? Use my referral code for three free months of Full Self-Driving (Supervised) here.

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Lifestyle

Watch Tesla’s “guardian angel” FSD feature take over for collision evasion

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Tesla’s Automatic Collision Evasion feature can be seen in one of the first owner videos of it in action.

Tesla owner Spencer (@scotsrule08) posted on Monday that the feature “worked flawlessly,” saying FSD reengaged itself just as he was about to hit a curb. Ashok Elluswamy, who leads Tesla’s AI team, shared the clip and wrote, “A guardian angel always looking out for you.”

The video arrives in the middle of a staged rollout. Tesla first shipped Automatic Collision Evasion with FSD (Supervised) v14.3.9 in software update 2026.27.6 earlier this month, which Teslarati covered as it reached cars. Update 2026.27.10, which began going out on September 19, carried the feature improvements with FSD v14.3.10, according to release notes tracked by Not a Tesla App. The newer 2026.27.11 build is now reaching another wave of vehicles.


The feature only runs on HW4 vehicles, and it requires an active FSD purchase or subscription with both FSD (Supervised) and Automatic Emergency Braking enabled. HW3 owners receive FSD v14.2 Lite in the same updates, but that build does not include collision evasion.

Tesla’s release notes describe two triggers. The first is an imminent frontal collision that braking alone may not prevent, in which case the car can activate FSD to steer, brake or accelerate around the hazard. That scenario is limited to highways below 85 mph, with no pedestrians or cyclists detected and no slippery road surface. The second covers a driver who appears inattentive, such as reaching into the back seat, or who seems to have switched off FSD by accident. Spencer’s curb clip appears to fall into that second category.

Tesla plans big safety improvements for Full Self-Driving v15

Once the system takes over, the accelerator is muted and light brake input will not cancel the maneuver. Drivers need to apply firm, deliberate steering force to take back control, and the car chimes to hand control back once the danger has passed.

Elluswamy recently noted that earlier hazard prediction, faster reaction time and better collision avoidance would arrive with FSD v15, the next major version.

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