News
Tesla’s approach to battery technology keeps it ahead in the EV industry
Tesla’s dominance in the growing electric vehicle (EV) industry is largely attributed to its unique approach to its battery technology. The engineering behind the all-electric car maker’s cylindrical cells speaks for itself in terms of the performance and range achieved, but in a recent interview with a battery technology researcher, a few things detailed about Tesla’s batteries stood out in particular.
Ravindra Kempaiah is a Ph.D. scholar at the University of Illinois Chicago focusing on advanced battery materials for his thesis. In his interview with Tesla owner and host of All Things EV, Sean Mitchell, Kempaiah explained lithium-ion technology in EVs and the primary issues faced in their development. Overall, the biggest challenge is balancing the three main components in battery production: energy density, cost, and cycle life. Increasing one area will significantly impact the other, and the ideal equation is always being sought after. For example, if you increase energy density for higher range and lower cost, the cycle life takes a major hit. If you increase density and life cycle, the battery alone can cost as much as $100k, as described by Kempaiah.
“We always want more range. We always want higher cycle life. We want our batteries to last 15-20 years and the car to go 500 miles, but this is a problem every battery scientist has faced for the last 30 years,” Kempaiah commented in the interview.
Tesla deals with the same balancing act as other battery-electric car makers; however, there are key factors which seem to have kept the company ahead in the industry.
First, Tesla’s choice of cylindrical cells sets it apart from every other electric vehicle on the market. This provides several advantages that drive performance, flexibility, and cost control. Notably, Rivian is also using cylindrical cells, although their vehicles are not yet under production.
Out of the three types of cells available (cylindrical, prismatic, and pouch cells), cylindrical is the most cost-effective to produce. Namely, the cost per kWh is lower in cylindrical cells versus other types. The metallic jacket around the 18650 and 2170 cylindrical cells used in the Tesla Model S/X and Model 3, respectively, acts as scaffolding and provides structural rigidity to the battery. Additionally, in high powered situations, current draw and distribution of power is over the entirety of the battery pack instead of concentrated in a certain section, according to Kempaiah.
Second, Tesla uses a liquid-cooled thermal management system to manage battery temperatures whereas other automakers take a more economical air cooling approach. By adjusting the temperature of the battery pack, Tesla is able to ensure that cells are operating in their most efficient and optimal states, thereby maximizing battery longevity as well as performance. While reducing cost is an important factor in accelerating the growth of the electric vehicle market, Tesla’s investment in thermal management technology provides an upside for owners who may be looking for longevity and long-term affordability of their cars.
Third, Tesla has actively sought to limit the amount of cobalt it uses in its batteries and already uses less of the element than other companies in the Model 3 batteries. The scarcity of cobalt and its mining sources have subjected it to socioeconomic situations that are more than problematic in the United States, i.e., child labor and similar abuses are widespread in its sourcing. With this in mind, Tesla has been working on the question, “Is cobalt really needed?”
Cobalt is used as a cathode in battery technology, and out of all cathode materials available, it has the highest cost both fiscally and politically. Current consensus on battery technology says that without cobalt, the structural integrity and cycle life in batteries is compromised, as described in the interview. However, some recent scientific literature was cited by Kempaiah that indicated higher nickel content limited the impact of cobalt on batteries, possibly removing the need to use it at all. Nickel is more widely available across the globe, which keeps its cost down and mitigates the socioeconomic impacts often associated with resource mining operations. Overall, the discussion between Mitchell and Kempaiah indicated that Tesla can probably go cobalt-free soon, making it less vulnerable to the cobalt industry.
Finally, Tesla takes great care to educate its customers about proper battery maintenance, especially with regard to the negative impact of bad charging habits. Specifically, keeping an electric car battery charged at 100% for long periods degrades the battery very quickly, while keeping charging states within an optimal range will give it a long life. Tesla makes it a point to communicate to customers the importance of battery health on their overall ownership experience and value of their purchase.
When asked for his opinion by Mitchell, Kempaiah attributed the lack of education by other brands as a disconnect between engineering teams and marketing teams. While battery “best practices” are provided to EV customers by all manufacturers, the importance of communicating the true impact of bad charging habits may not be emphasized enough to be included as prominently as it should.
In summary, Tesla is constantly developing the technology in its vehicles, and its particular attention to its batteries looks to have given the company a significant advantage over its competitors. Perhaps other automakers will take a few tips from Tesla in the future, even if it’s as limited as improving communications with customers.
Watch Sean Mitchell’s full interview with Ravindra Kempaiah below:
Elon Musk
Elon Musk hits back at former Tesla employee who disagrees with pay package
Tesla is worth more than all other automotive companies combined. Which of those CEOs would you like to run Tesla?
It won’t be me.
Elon Musk gave a tough response to a former Tesla employee who spoke out on X about the structure of the CEO’s pay package, arguing that it is an overpayment and would not generate enough shareholder value.
Without a doubt, the biggest issue on the bill at this year’s Tesla Shareholder Meeting in November is that of the pay package that was proposed to CEO Elon Musk.
As the Shareholder Meeting approaches, Tesla is urging those investors to vote in support of Musk’s pay package. So far, the community has been overwhelmingly supportive of giving Musk his massive payday, which could give him $1 trillion in additional holdings if he completes each of the outlined performance tranches.
However, there are a handful of institutional and individual shareholders who have pushed back against the package, either because of its value or because they feel it does not benefit shareholders enough.
Last week, we reported that Institutional Shareholder Services (ISS) advised voting against Tesla’s pay package for Musk. The firm said the payday would give Musk”extraordinarily high pay opportunities over the next ten years,” and it would “reduce the board’s ability to meaningfully adjust future pay levels.”
Tesla CEO Elon Musk’s $1 trillion pay package hits first adversity from proxy firm
Additionally, it called the value of the pay package “astronomical.”
On Saturday, a former Tesla employee said on X that Tesla’s proposed pay package for Musk would “barely beat inflation and it would underperform the S&P 500 considerably.” Additionally, he said:
“Sorry, Tesla, some of us (and supposedly, ISS too) simply don’t think that underperforming the S&P 500 this much is worth paying somebody 20 billion dollars worth of company value.
As a fan, I love Tesla, I want it to succeed. As a shareholder, I don’t want Tesla to over-pay for its CEO I strongly believe that the 2025 pay package proposal would over-pay for its CEO, and that other competent CEOs could grow Tesla just as much with way less political drama and cost investors much less that this proposal.”
Musk responded bluntly:
“Tesla is worth more than all other automotive companies combined. Which of those CEOs would you like to run Tesla? It won’t be me.”
Tesla is worth more than all other automotive companies combined. Which of those CEOs would you like to run Tesla?
It won’t be me.
— Elon Musk (@elonmusk) October 19, 2025
It seems the worry about Musk’s potential involvement in politics still looms to many, based on the responses to Musk’s post, which frequently mention that as a downside of his last year as Tesla CEO. However, Tesla’s Board confronted that directly.
In its proxy filing after announcing the pay package, Tesla said that it had three commitments, one of which was that the company would “receive assurances that Musk’s involvement with the political sphere would wind down in a timely manner.”
Tesla Board takes firm stance on Elon Musk’s political involvement in pay package proxy
Musk’s previous pay package was approved by shareholders twice, but it never made it to the CEO because of a lawsuit with the Delaware Chancery Court brought forth by a small-time shareholder.
The response from Musk does seem to show that if this time is no different, he will inevitably step down as CEO in the coming years.
Tesla rivals are lagging behind the company in alarming fashion in this crucial EV necessity: charging.
Tesla has had a long-standing reputation for having the most expansive electric vehicle charging infrastructure, and even as other companies have launched their own as part of the vehicle manufacturing, nobody seems to keep pace with the EV leader.
A report from Paren exhibited this trend in Q3, showing that Tesla overwhelmingly dominated EV charging stall installations over the past three months. This data is based on U.S. installations, where Tesla has long held a dominating position as the leader in overall electric vehicle sales for many years.
In Q3, Tesla installed 1,820 new chargers in the United States, bringing its total presence to 34,328, an all-time market share of 53.2 percent of all charging stalls in the country.
What’s alarming is the fact that all other networks — ChargePoint, Red E, Electrify America, EV Connect, EVgo, Ionna, Blink, Pilot Flying J, and Rivian Adventure — only installed 841 chargers collectively in Q3. That is nearly 1,000 units behind Tesla, despite there being nine companies contributing as competitors.
These nine networks have 10,055 stalls in total, the data from Paren shows, accounting for 15.6 percent of the chargers in the United States.
Tesla added more Superchargers in the US in Q3 than the next nine networks combined. pic.twitter.com/zihhezI6a6
— Sawyer Merritt (@SawyerMerritt) October 20, 2025
EV charging is such a crucial part of the ownership experience, and also a part of the ongoing expansion of EV adoption in the United States.
As more people buy EVs and they become a more prominent form of passenger transportation, more chargers are needed. Many owners charge at home, but charging options in public are important to have for traveling, commuting, and for those who do not have access to residential charging.
With Tesla opening its Supercharger Network to the majority of EV brands over the past two years, things have gotten better.
It has been alarming to see so many companies involved in EV infrastructure essentially accept the gap between Tesla and themselves; not a single company has tried to up its pace to catch up to what Tesla has.
When it comes down to it, as long as there is charging, the manufacturer does not truly matter.
However, it would be nice to see Tesla have some competition in the space, but with its domination and head start in the infrastructure division, it seems the company will have this competitive advantage for years to come.
News
Tesla updates fans on its plans for the Roadster
Earlier in 2025, Musk said Tesla would host the “most epic demo” for the Roadster in late 2025. We’re in Q4, so time is running out, but we finally got the update we’ve been waiting for from von Holzhausen on the Ride the Lightning podcast yesterday.
Tesla has finally updated fans on its plans for the Roadster after stating earlier this year it would host the “most epic demo,” showcasing the vehicle’s capabilities.
The Roadster is amongst the most highly anticipated automotive releases in the entire industry, and was set for release in 2020 initially. However, Tesla got so caught up with scaling up the Model Y and focusing on autonomy that the project took a figurative backseat.
In the years since its planned release, we have not seen much of the vehicle. Company executives like Elon Musk and Chief Designer Franz von Holzhausen have hinted at things about it and teased us with potential release dates, but each time, it has been delayed.
Last year, Tesla planned to show something, but Musk saw what improvements had been made from the original design unveiled back in 2017 and figured the company could go a step further, only delaying the project another year.
But what’s another year, right?
Earlier in 2025, Musk said Tesla would host the “most epic demo” for the Roadster in late 2025. We’re in Q4, so time is running out, but we finally got the update we’ve been waiting for from von Holzhausen on the Ride the Lightning podcast yesterday.
Confirming the demo was still on for this year, he also teased some new features that the Roadster will have, like new paint options.
Von Holzhausen said:
“I’m excited to showcase the Roadster for a lot of different reasons. The wait will be worth it.”
Additionally, he said the capabilities of the Roadster are truly something, and they have gotten the vehicle to a point that it seems to test the “limits of physics.” Franz added that Tesla has “really gotten to a point where we are going to be achieving that standard that we set out.”
Obviously, the Roadster is not a major contributor to Tesla’s mission or to its future, which mostly leans on artificial intelligence and Robotaxi or autonomy. However, it is still a product that Tesla needs to offer, as many have put massive $250,000 downpayments on the vehicle in an attempt to purchase one.
Tesla has not yet announced a date for its demo of the Roadster, but based on Franz’s interview, it seems the company is still on track to hold that by the end of the year.
The full episode with Franz von Holzhausen on the Ride the Lightning podcast is available here.
Elon Musk hits back at former Tesla employee who disagrees with pay package
Tesla rivals are lagging behind alarmingly in this crucial EV necessity
Tesla updates fans on its plans for the Roadster
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