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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
Tesla reveals major info about the Semi as it heads toward ‘mass production’
Some information, like trim levels and their specs were not revealed by Tesla, but now that the Semi is headed toward mass production this year, the company finally revealed those specifics.
Tesla has revealed some major information about the all-electric Semi as it heads toward “mass production,” according to CEO Elon Musk.
The Semi has been working toward a wider production phase after several years of development, pilot programs, and the construction of a dedicated production facility that is specifically catered to the manufacturing of the vehicle.
However, some information, like trim levels and their specs were not revealed by Tesla, but now that the Semi is headed toward mass production this year, the company finally revealed those specifics.
Tesla Semi undergoes major redesign as dedicated factory preps for deliveries
Tesla plans to build a Standard Range and Long Range Trim level of the Semi, and while the range is noted in the company’s newly-released spec list, there is no indication of what battery size will be equipped by them. However, there is a notable weight difference between the two of roughly 3,000 lbs, and the Long Range configuration has a lightning-fast peak charging speed of 1.2 MW.
This information is not available for the Standard Range quite yet.
The spec list is as follows:
- Standard Range:
- 325 miles of range (at 82,000 lbs gross combination weight
- Curb Weight: <20,000
- Energy Consumption: 1.7 kWh per mile
- Powertrain: 3 independent motors on rear axles
- Charging: Up to 60% of range in 30 minutes
- Charge Type: MCS 3.2
- Drive Power: Up to 800 kW
- ePTO (Electric Power Take Off): Up to 25 kW
- Long Range:
- Range: 500 miles (at 82,000 lbs gross combination weight)
- Curb Weight: 23,000 lbs
- Energy Consumption: 1.7 kWh per mile
- Powertrain: 3 independent motors on rear axles
- Charging: Up to 60% of range in 30 minutes
- Charge Type: MCS 3.2
- Peak charging speed: 1.2MW (1,200kW)
- Drive Power: Up to 800 kW
- ePTO (Electric Power Take Off): Up to 25 kW
It is important to keep in mind that the Semi is currently spec’d for local runs, and Tesla has not yet released or developed a sleeper cabin that would be more suitable for longer trips, cross-country hauls, and overnight travel.
Tesla Semi sleeper section and large side storage teased in new video
Instead, the vehicle will be initially used for regional deliveries, as it has in the pilot programs for Pepsi Co. and Frito-Lay for the past several years.
It will enter mass production this year, Musk confirmed on X over the weekend.
Now that the company’s dedicated Semi production facility in Sparks, Nevada, is standing, the timeline seems much more realistic as the vehicle has had its mass manufacturing date adjusted on several occasions.
Ferrari, the Italian supercar maker, has revealed the name, interior, and interface design of its first-ever electric vehicle project, the Luce, initiating a new chapter in the rich history of the company’s automotive books.
This is the first time Ferrari has revealed such intimate details regarding its introductory EV offering, which has been in the realm of possibility for several years.
As more companies continue to take on EV projects, and some recede from them, supercar companies like Ferrari and Lamborghini are preparing to offer electric powertrains, offering super-fast performance and a new era of speed and acceleration.
Luce – a New Chapter in Ferrari
The company said that the name Luce is “more than a name. It is a vision.” Instead of looking at its first EV offering as a means to enter a new era of design, engineering, and imagination. The company did not want to compromise any of its reputation, high standards, or performance with this new project. It sees it as simply a page turn, and not the closing of a book:
“This new naming strategy reflects how the Ferrari Luce marks a significant addition to the Prancing Horse’s line-up, embodying the seamless expression of tradition and innovation. With its cutting-edge technology, unique design, and best-in-class driving thrills, it unites Ferrari’s racing heritage, the timeless spirit of its sports cars, and the evolving reality of contemporary lifestyles. It testifies to Ferrari’s determination to go beyond expectations: to imagine the future, and to dare. Because leading means illuminating the path ahead – and Luce embodies that mindset.”
Ferrari Luce Design
Ferrari collaborated with LoveFrom, a creative collective founded by Sir Jony Ive and Marc Newson. The pair has been working with Ferrari for five years on the Luce design; everything from materials, ergonomics, interface, and user experience has been designed by the two entities.
The big focus with the interior was to offer “a first, tangible insight into the design philosophy…where innovation meets craftsmanship and cutting-edge design. The team focused on perfecting and refining every solution to its purest form — not to reinvent what already works, but to create a new, carefully considered expression of Ferrari.”
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The company also said:
“Ultimately, the design of the Ferrari Luce’s interior is a synthesis of meticulous craftsmanship, respect for tradition, and thoughtful innovation. It offers a new choice for Ferrari enthusiasts – one that honours the past while embracing the future, and exemplifies the brand’s enduring commitment to quality, performance, and cultural significance.”
The appearance of the elements that make up the interior are both an ode to past designs, like the steering wheel, which is a reinterpretation of the iconic 1950s and 1960s wooden three-spoke Nardi wheel, and fresh, new designs, which aim to show the innovation Ferrari is adopting with this new project.
Interior Highlights
Steering Wheel
The Ferrari Luce is a shout-out to the Nardi wheel from the 1950s and 60s. It is constructed of 100% recycled aluminum, and the alloy was developed specifically for the vehicle to “ensure mechanical resistance and a superb surface quality for the anodisation process.”
It weighs 400 grams less than a standard Ferrari steering wheel:
Credit: Ferrari
It features two analogue control modules, ensuring both functionality and clarity, Ferrari said. The carmaker drew inspiration from Formula One single-seaters, and every button has been developed to provide “the most harmonious combination of mechanical and acoustic feedback based on more than 20 evaluation tests with Ferrari test drivers.”
Instrument Cluster and Displays
There are three displays in the Luce — a driver binnacle, control panel, and rear control panel, which have all been “meticulously designed for clarity and purpose.”
The binnacle moves with the steering wheel and is optimized for the driver’s view of the instrumentation and supporting driver performance.
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- Credit: Ferrari
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- Credit: Ferrari
Displays are crafted by Samsung and were specifically designed for the car, using a “world first – three large cutouts strategically reveal the information generated by a second display behind the top panel, creating a fascinating visual depth that captures the eye.”
Samsung Display engineers created an ultra-light, ultra-thin OLED panel for the vehicle.
Credit: Ferrari
Pricing is still what remains a mystery within the Luce project. Past reports have speculated that the price could be at least €500,000, or $535,000.
Elon Musk
Elon Musk pivots SpaceX plans to Moon base before Mars
The shift, Musk explained, is driven by launch cadence and the urgency of securing humanity’s long-term survival beyond Earth, among others.
Elon Musk has clarified that SpaceX is prioritizing the Moon over Mars as the fastest path to establishing a self-growing off-world civilization.
The shift, Musk explained, is driven by launch cadence and the urgency of securing humanity’s long-term survival beyond Earth, among others.
Why the Moon is now SpaceX’s priority
In a series of posts on X, Elon Musk stated that SpaceX is focusing on building a self-growing city on the Moon because it can be achieved significantly faster than a comparable settlement on Mars. As per Musk, a Moon city could possibly be completed in under 10 years, while a similar settlement on Mars would likely require more than 20.
“For those unaware, SpaceX has already shifted focus to building a self-growing city on the Moon, as we can potentially achieve that in less than 10 years, whereas Mars would take 20+ years. The mission of SpaceX remains the same: extend consciousness and life as we know it to the stars,” Musk wrote in a post on X.
Musk highlighted that launch windows to Mars only open roughly every 26 months, with a six-month transit time, whereas missions to the Moon can launch approximately every 10 days and arrive in about two days. That difference, Musk stated, allows SpaceX to iterate far more rapidly on infrastructure, logistics, and survival systems.
“The critical path to a self-growing Moon city is faster,” Musk noted in a follow-up post.
Mars still matters, but runs in parallel
Despite the pivot to the Moon, Musk stressed that SpaceX has not abandoned Mars. Instead, Mars development is expected to begin in about five to seven years and proceed alongside the company’s lunar efforts.
Musk explained that SpaceX would continue launching directly from Earth to Mars when possible, rather than routing missions through the Moon, citing limited fuel availability on the lunar surface. The Moon’s role, he stated, is not as a staging point for Mars, but as the fastest achievable location for a self-sustaining off-world civilization.
“The Moon would establish a foothold beyond Earth quickly, to protect life against risk of a natural or manmade disaster on Earth,” Musk wrote.
Tesla reveals major info about the Semi as it heads toward ‘mass production’
Ferrari Luce EV: Italian supercar maker reveals interior and interface design
