Connect with us

News

Tesla battery researcher Jeff Dahn’s tests hint at li-ion cells breaking the 2M-mile barrier

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

Published

on

Last year, the electric vehicle community’s attention was caught when Tesla battery researcher Jeff Dahn and his team published a paper revealing that quality lithium-ion batteries have the capability to last 1 million miles if used in EVs. A recent presentation from the respected battery pioneer has now revealed that these findings may actually be conservative, as the batteries that Dahn and his team have been testing are still going strong, and are now on track to pass the 2-million-mile mark.

Dahn’s updated findings were discussed in a recent video conference for energy storage and sustainable engineering. According to Dahn, the “million-mile” batteries that were referred to in the past year’s paper are now going towards 10,000 to 15,000 cycles. Considering that the million-mile cells were cycled 5,000 times, it is starting to become evident that the lithium-ion batteries that Dahn’s team have been testing have the potential capability to last 3.5 million km or over 2 million miles if used in an electric vehicle.

https://twitter.com/facts_tesla/status/1317933952645042176?s=20

Remarkably, the lithium-ion cells that are being cycled by Dahn and his team have shown minimal degradation even at this point. With this in mind, there seems to be a good chance that even the study’s “2-million-mile” cells are capable of lasting even longer. Dahn notes that lithium-ion batteries have reached a point where it is becoming imperative to look into the further applications of advanced battery technology, such as vehicle-to-grid, or massive vehicles like airplanes and ferries.

As noted by the team in its 2019 paper, the lithium-ion batteries that it will be using are NMC532 pouch cells obtained from Li-FUN Technology in China. The NMC532 pouch cells are dry batteries as well, using no electrolytes. Interestingly enough, Tesla’s next-generation 4680 cells that the company revealed at Battery Day also utilize dry battery technology developed from the innovations of Maxwell Technologies, a company that the EV maker acquired.

Considering that the batteries which Dahn and his team are testing are just cells acquired from Li-FUN Technology in China, there seems to be a pretty good chance that Tesla’s next-generation 4680 cells could exhibit comparable or even superior performance when they are deployed to the company’s fleet of vehicles and energy storage units in the coming years. If these assumptions prove accurate, then Tesla’s next-generation cells may truly be a class above anything that is being used in the market today. Dahn, for his part, noted that Tesla’s battery strategy is sound.

Advertisement

“Tesla is just moving forward at the speed of light. They are upscaling their factories, they know they need Tera Watt Hours for both energy storage and vehicles, and it’s incredibly exciting times,” he said.

Watch Jeff Dahn’s recent talk about his team’s battery findings in the video below.

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.

Advertisement
Comments

News

Tesla offers interesting promo to future ride-hailing rival’s drivers

Lyft drivers will get $1,000 in vehicle credits if they complete 100 rides by the cutoff date for the promo.

Published

on

(Credit: Tesla)

Tesla has offered an interesting promotion for its vehicles to the drivers of one of its future ride-hailing rivals as it continues to work toward the launch of its autonomous Robotaxi platform.

This morning, Tesla launched a $1,000 off promotion to Lyft drivers who plan to utilize one of the company’s EVs for ride-hailing purposes. The promo applies to all five Tesla models: the Model S, Model 3, Model X, Model Y, and Cybertruck.

It is not offered at the point of sale. Instead, to ensure the vehicle is properly utilized for ride-hailing purposes and to prove the discount, Tesla will offer $1,000 in vehicle credits to the Lyft driver after they complete 100 trips on or before July 13, 2025. Delivery must be taken by June 30.

It is an interesting move by Tesla because Lyft, along with Uber, will become a rival in the coming years as the companies continue to develop driverless ride-hailing platforms of their own. Lyft has partnered with May Mobility and Mobileye to develop driverless, fully autonomous vehicles purpose-built for ride-hailing.

Tesla plans to launch its Robotaxi platform next month in Austin, Texas.

Tesla hints at June 1 launch of Robotaxi platform in Austin

Meanwhile, Lyft’s plans are more down the road. Earlier this year, the company said it would launch autonomous rides sometime next year.

For now, the move seems to be just another way Tesla is incentivizing consumers to buy one of their vehicles. Earlier this week, it also launched another $1,000 off promo for teachers, students, retirees, active-duty members, their spouses, and surviving spouses.

Previously, Tesla only offered that discount to military members.

It is unclear why Tesla would be offering these discounts, but it could be more of a thank you or an act of recognition, more than anything. If it were a measure that was taken to increase demand, it would be substantially more of a discount. For example, when Tesla was trying to rid its inventory of legacy Model Y units as the new, updated vehicle was set to be released, discounts were over $5,000.

Continue Reading

News

Tesla Giga Berlin seems to be using FSD Unsupervised to move Model Y units

Tesla may be doing something quite special in the Giga Berlin-Brandenburg complex.

Published

on

Tesla FSD Unsupervised Giga Texas

Tesla may be doing something quite special in the Giga Berlin-Brandenburg complex. Based on observations from a recent drone flyover of the site, it appears that Tesla may also be using FSD Unsupervised to move freshly produced Model Y vehicles to the factory’s staging area.

New Drone Footage

Recent footage of the Giga Berlin complex from longtime Tesla watcher Tobias Lindh included several interesting updates around the Model Y factory. These include a new warehouse that is currently being built, as well as a tunnel is currently being constructed. More interestingly, the drone operator observed that some cars now seem to be moving to Giga Berlin’s distribution area without human drivers.

If the drone operator’s observations prove accurate, it would be quite an impressive accomplishment for Tesla. FSD Unsupervised, after all, has only been confirmed in vehicles that are produced at the Fremont Factory and Gigafactory Texas.

https://twitter.com/NicklasNilsso14/status/1922799362511376892

Potential Next Steps

If Giga Berlin is now using FSD Unsupervised to transport some Model Y units from the factory building to the site’s staging area, it might only be a matter of time before Tesla also implements a similar system for Gigafactory Shanghai. The Shanghai-based Tesla plant, after all, is the company’s largest factory by volume, and it also serves as a primary vehicle export hub. FSD Unsupervised could then pave the way for Giga Shanghai to operate in an even more optimal manner. 

FSD Unsupervised is the cornerstone of Tesla’s robotaxi business, which is expected to start rolling out in Austin, Texas, next month. Previous reports have suggested that Tesla is pushing hard in its preparations to roll out its robotaxi service this June. Tesla has reportedly even worked and trained with Austin’s first responders from the fire and police departments as part of its robotaxi service preparations.

Advertisement

Check out a recent flyover of the Tesla Giga Berlin complex in the video below.

https://www.youtube.com/watch?v=p9RFgOiFiU0
Continue Reading

Investor's Corner

Tesla welcomes Chipotle President Jack Hartung to its Board of Directors

Tesla announced the addition of its new director in a post on social media platform X.

Published

on

Credit: @ArthurFromX/X

Tesla has welcomed Chipotle president Jack Hartung to its Board of Directors. Hartung will officially start his tenure at the electric vehicle maker on June 1, 2025.

Tesla announced the addition of its new director in a post on social media platform X.

Jack Hartung’s Role

With Hartung’s addition, the Tesla Board will now have nine members. It’s been a while since the company added a new director. Prior to Hartung, the last addition to the Tesla Board was Airbnb co-founder Joe Gebbia back in 2022. As noted in a Reuters report, Hartung will serve on the Tesla Board’s audit committee. He will also retire from his position as president and chief strategy officer at Chipotle, and transition into a senior advisor’s role at the restaurant chain, next month.

Hartung has had a long career in the Mexican grill, joining Chipotle in 2002. He held several positions in the company, most recently serving as Chipotle’s President and Chief Strategy Officer. Tesla highlighted Hartung’s accomplishments in a post on its official account on X.

“Over the past 20+ years under Jack’s financial leadership, Chipotle has seen significant growth with over 3,700 restaurants today across the United States, Canada, the United Kingdom, France, Germany, Kuwait and the United Arab Emirates. Jack was named ‘CFO of the Year’ by Orange County Business Journal and Best CFO in the restaurant category by Institutional Investor,” Tesla wrote in its post on X.

Advertisement

Tesla Board and Musk

Tesla is a controversial company with a controversial CEO, so it is no surprise that the Board of Directors tend to get flak as well. Two weeks ago, for example, Tesla Board Chair Robyn Denholm slammed The Wall Street Journal for publishing an article alleging that company directors had considered a search for a potential successor to Elon Musk. Denholm herself has also been criticized for offloading her TSLA shares.

More recently, news emerged suggesting that the Tesla Board of Directors had formed a special committee aimed at exploring a new pay package for CEO Elon Musk. The committee is reportedly comprised of Tesla board Chair Robyn Denholm and independent director Kathleen Wilson-Thompson, and they would be exploring alternative compensation methods for Musk’s contributions to the company.

Continue Reading

Trending