

News
Tesla researcher’s 1 million-mile battery cell breakthrough secures the Semi’s longevity
Tesla lead battery researcher Jeff Dahn and members of the Department of Physics and Atmospheric Science in Dalhousie University recently released a new paper that points to the development of battery cells capable of lasting over 1 million miles on the road, or 20 years if utilized in grid energy storage.
“We conclude that cells of this type should be able to power an electric vehicle for over 1.6 million kilometers (1 million miles) and last at least two decades in grid energy storage,” the team noted in their paper.
It should be noted that the cells utilized by the researchers are pouch cells as opposed to the cylindrical cells favored by Tesla for its electric vehicles. The new cells feature new chemistry, which improves energy, charge rate and more importantly, allows a larger SOC swing. These optimizations result in savings, both in weight and in cost.
The idea of a million-mile battery has been mentioned by CEO Elon Musk in the past, together with the development of a drive unit that is also capable of lasting for a million miles on the road. With such innovations in place, Tesla’s battery cells, which are already among the best in the industry, are bound to last even longer.
Used in electric vehicles and operated at temperatures controlled to 20C, the new battery cells are expected to retain 95% fractional capacity after the million-mile mark is reached. Battery cells used for energy storage, on the other hand, are expected to retain 90% fractional capacity after over 20 years of service. Commenting on Dahn’s research, Desktop Metal CEO Ric Fulop stated that the second life of these improved battery packs have the potential to change the very nature of the grid in the future.
These improvements are pretty much the perfect match for some of Tesla’s upcoming projects, particularly its all-electric truck, the Semi. The Semi was announced with a range of either 300 or 500 miles, though Elon Musk has previously hinted that the vehicle will have closer to 600 miles of range per charge instead. The vehicle has garnered warm reception from several large corporations, from UPS to PepsiCo. As such, it is certain that once the Semi gets deployed, the vehicle will be on the road constantly, putting much strain on the truck’s batteries. Having batteries that last longer will make the vehicle more attractive to potential buyers.
This is where the improvements highlighted by Dahn’s team come in. With longer-lasting batteries, the Tesla Semi could stand toe-to-toe with its diesel-powered counterparts, which typically require an engine overhaul at around the 700k to 1 million-mile mark. Together with a drivetrain that also lasts a million miles and an overall cheaper operating cost, the Tesla Semi could prove to be a competitive alternative to the tried-and-tested diesel rigs of the trucking industry.
It should be noted that Tesla’s current battery tech is likely far ahead of the cells described by Dahn and his team in their paper. Sharing such data, after all, suggests that Tesla has already developed, or at least, is working on an improved version that would allow them to have an even more considerable advantage in the battery segment. This, of course, could widen the gap between Tesla and its competitors in the electric car industry even further.
Jeff Dahn and the Dalhousie University team’s 1-million-mile battery paper could be accessed below.
J. Electrochem. Soc. 2019 Harlow A3031 44 by Simon Alvarez on Scribd
News
Tesla Robotaxi benefits from Trump’s new self-driving rules
Trump admin eases self-driving rules. Tesla could launch FSD faster. Austin Robotaxi launch now looks even stronger.

The Tesla Robotaxi network will benefit from U.S. President Trump’s new self-driving rules.
The Trump administration is loosening regulations to support U.S. automakers like Tesla in developing self-driving cars. The United States government aims to outpace Chinese competitors in autonomous vehicle development. The policy shift, which was announced by U.S. Transportation Secretary Sean Duffy on Thursday, targets federal safety rules and crash reporting requirements to accelerate autonomous vehicle innovation.
The Transportation Department outlined exemptions allowing U.S. companies to bypass specific safety regulations for self-driving vehicles used in research, demonstrations, and non-commercial settings. Previously, such exemptions were applied mainly to foreign vehicles with standards different from those in the United States. The department also plans to streamline crash reporting rules, which Elon Musk has criticized, and move toward a unified national standard, replacing fragmented state regulations.
“We’re in a race with China to out-innovate, and the stakes couldn’t be higher,” said Transportation Secretary Sean Duffy in a statement. “Our new framework will slash red tape and move us closer to a single national standard.”
The regulatory changes align with Tesla’s ambitions in autonomous driving, particularly related to its Robotaxi network. On Wednesday, Musk confirmed during a Tesla investor call that the company is prepared to launch self-driving Tesla robotaxis in Austin, Texas, by June. Tesla’s Full Self-Driving (FSD) technology, a cornerstone of its robotaxi plans, could benefit from the eased rules, expediting testing and deployment.
The exemptions are designed to level the playing field for U.S. automakers, giving Tesla and others more flexibility to innovate. The administration aims to foster a competitive environment against Chinese firms advancing in autonomous vehicle technology by simplifying crash reporting and harmonizing regulations. Industry observers note China’s aggressive push for self-driving tech has pressured U.S. policymakers to act.
Tesla’s Austin Robotaxi rollout will be a key testbed for its FSD software under the new regulatory framework. The company has been refining FSD, with recent updates showcasing improved performance. The Transportation Department’s move could accelerate Tesla’s timeline for scaling its autonomous fleet, a critical step toward Musk’s vision of the Robotaxi network.
The policy shift underscores a broader U.S. strategy to maintain technological leadership. With Tesla at the forefront, the loosened rules could reshape the self-driving landscape, positioning American automakers to challenge global rivals.
Elon Musk
Kia gains Tesla Supercharger access and issues a big apology
Kia gained Tesla Supercharger access and respect from Tesla fans in the same day.

Kia has announced that owners of the EV6, EV9, and Niro EVs have officially gained access to over 21,500 Tesla Supercharger locations in North America.
However, its announcement also contained an apology to Tesla.
First, Kia said that its three EV offerings will have access to Tesla’s expansive Supercharger Network. More than 40,000 DC fast chargers are available to Kia EV drivers, a major uptick as Tesla Supercharger access nearly doubles the number of accessible piles.
Sean Yoon, President of Kia North America and Kia America, said:
“Kia is committed to an exceptional ownership experience, and expanding the network of available DC fast chargers to our EV customers is an important component to maintaining the brand’s leadership in electrified mobility. Now, with access to the Tesla Supercharger network of DC fast chargers, our EV owners can feel even more confident in their decision to purchase or lease a fully electric Kia vehicle.”
Kia owners who have a CCS1 Charging Port will have access to an NACS adapter through dealerships. This will enable compatibility, as current inlets are not NACS, the port that Tesla utilizes.
However, Kia will eliminate the need for this adapter starting with the 2025 EV6 and 2026 EV9. These will come standard with NACS inlets.
We mentioned Kia included somewhat of an apology to Tesla, which is related to social media posts from “certain Nordic distributors,” as the company puts it:
Kia paid for a front page ad on Finland’s largest newspaper to mock Elon Musk and Tesla.
Translation: “Oh, These Days of Life. If you’re unsure about driving an american electric car, welcome to the Helsinki Exhibition Centre to admire the cars of the new age.”
It’s a play on… pic.twitter.com/XfwOJVIGll
— Nic Cruz Patane (@niccruzpatane) April 5, 2025
Kia said in its announcement:
“Kia America is aware of marketing posts by certain Nordic distributors. These initiatives were developed entirely independently by those distributors, without direction from Kia America, Kia Europe or Kia Global. We want it to be clear that these posts do not reflect the position of Kia America, and we remain committed to clear and professional communication that reflects our values.”
The company also said that it “condemns the recent attacks that disrupt the availability of convenient and affordable charging for our customers.”
Elon Musk
Tesla adds new child protection feature to mobile app
Tesla is rolling out within its mobile app a new feature that aims to save the lives of those forgotten in the car.

Tesla is bolstering its in-car safety system with the addition of a new feature that aims to protect children left in the vehicle, an extension of a feature it introduced with the addition of 4D radar systems.
Children are, unfortunately, victims of accidents even when a vehicle is not in motion. A report from 2024 noted that 37 children under the age of 15 die each year because they are left in cars, usually dying from heatstroke.
Tesla has made a few attempts to eliminate the possibility of this happening. Back in September, coding from Software Update 2024.32 noted that the company would be using an alert system to warn people of children left behind:
Tesla set to roll out new child safety and navigation features, coding shows
This was enabled by the use of a wave sensor within the cabin, a piece of tech Teslarati found in a filing back in 2021 with the FCC.
The entire idea behind this addition to the vehicles was to alert owners if there were passengers left in the car.
Now, Tesla is adding another level of this to its mobile app, according to a decompile of the Version 4.44.0 update, which is rolling out to customers now.
Tesla App Updates on X revealed a “Child Left Alone Detection” feature in the new app version, which has a few strings from a software perspective:
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Cannot turn off climate when Child Left Alone Detection is active
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Climate failed to start. Climate is unavailable when Child Left Alone Detection is active.
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Climate controls are disabled when Child Left Alone Detection is active
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Unable to start software update while a child is detected in your vehicle
It appears that, if the vehicle detects a child or another occupant in the car, climate controls will be disabled through the app in an attempt to maintain a proper cabin temperature. Turning the temperature up or even turning climate control off from the app will not be possible.
This is a major update to this feature as it only bolsters the safety of the occupants in the event that they are left behind. Of course, many of us might ask, “How do you leave a child in the car?”
However, it happens, as past events have shown, and this is a great way to eliminate it from happening in Tesla vehicles.
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