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Tesla’s 1 million-mile battery takes a step forward with new electrode patent

Tesla Gigafactory 1, where Model 3 battery cells are produced. (Photo: Tesla)

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A newly released patent from Tesla has teased what appears to be a step towards Elon Musk’s one-million-mile battery target. The patent describes a new lithiation process for battery cells, which has the potential to improve the quality of cells and possibly even save on costs.

Tesla has submitted a patent titled “Method for Synthesizing Nickel-Cobalt-Aluminum Electrodes.” The document outlines a new electrode synthesizing method that could be used for battery cell production. The proposed application defines an efficient heating process for Nickel-Cobalt-Aluminum (NCA) electrodes. According to the document, previous heating methods at times cause the formation of a lithium substrate known as L15AIO4, which is an impurity. Lowering the amount of lithium within a battery reduces the presence of the contamination, but also leads to “materials with inferior electrochemical properties.”

As noted in the patent, batteries would heat to a temperature high enough to allow for single crystal growth. The revised ratio of lithium to other metals would limit the formation of impurities during the first heating process. Then, the battery would be heated a second time at a temperature lower than the first heating cycle. Researchers involved in the patent noted that this process helped develop an impurity-free single crystal NCA that allowed battery cells to achieve over 4,000 charge cycles.

Lithiation measurements at different temperatures. (Credit: Tesla/U.S. Patent Office)

The patent outlines the heating process:

“Methods disclosed herein include a first lithiation step, wherein a lithium and an other metal component are present in a first lithium/other metal ratio of less than 1.0 and are sintered at a temperature between 800 and 950°C for a time period between 1 and 24 hours to obtain a first lithiated material. The method further includes a second lithiation step, wherein a lithium and a other metal component are present in a second lithium/other metal ratio and further wherein the first lithiated electrode material is sintered with additional LiOHTLO at between 650 and 760°C for a time period between 1 and 24 hours to obtain a second lithiated material.”

In summary, the use of NCA electrodes in batteries would allow for single-crystal materials to present themselves without impurities. The lack of contaminants could lead to an increased lifespan of the cells altogether, helping Tesla take a giant leap forward in its quest to produce a one-million-mile battery for its vehicles.

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Interestingly enough, one of the listed names on the patent is battery expert and researcher Jeff Dahn, who has worked with Tesla in the past. Tesla summoned the help of Dahn, who leads a team of researchers at Canada’s Dalhousie University, to help the electric car maker improve its batteries. Dahn’s research has helped Tesla’s development of high-quality battery cells by inventing new electrode combinations, like the one described in this patent, and electrolyte solutions aimed at further increasing battery life.

Tesla’s batteries are always in a state of improvement, and over the years, the cells that the company utilizes for its vehicles and energy storage systems have gotten more energy-dense. Economies of scale that is made possible with facilities such as Gigafactory Nevada have also gone a long way towards helping Tesla near the $100 per kWh mark, a level that is widely considered the point where electric vehicles could achieve price parity with their internal combustion-powered counterparts.

Apart from its battery patents, Tesla has also been busy acquiring several battery companies. Among these are Maxwell Technologies and Hibar Systems, both of which were developing technologies that would allow for better battery quality and more efficient production costs. Relatively simple developments such as those described in Tesla’s recent patent help this cause too, especially since every little bit of optimization helps.

Tesla’s development of its battery technology could lead to its vehicles lasting 20 to 30 years, far longer than petrol-powered cars. It appears the company is planning to create a product line that could stay with owners for extended periods with relatively no annual maintenance. And that, together with price parity, can very well be the catalyst for society’s acceleration towards sustainability.

The full text of Tesla’s “Method for Synthesizing Nickel-Cobalt-Aluminum Electrodes” patent could be accessed in the document below.

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METHOD FOR SYNTHESIZING NIC… by Joey Klender on Scribd

Joey has been a journalist covering electric mobility at TESLARATI since August 2019. In his spare time, Joey is playing golf, watching MMA, or cheering on any of his favorite sports teams, including the Baltimore Ravens and Orioles, Miami Heat, Washington Capitals, and Penn State Nittany Lions. You can get in touch with joey at joey@teslarati.com. He is also on X @KlenderJoey. If you're looking for great Tesla accessories, check out shop.teslarati.com

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Tesla Cybertruck gets Full Self-Driving v14 release date, sort of

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Tesla Cybertruck owners are wondering when they will get access to the company’s Full Self-Driving version 14.1 that rolled out to other owners today for the first time.

Cybertruck owners typically receive Full Self-Driving updates slightly later than other drivers, as the process for the all-electric pickup is different. It is a larger vehicle that requires some additional attention from Tesla before FSD versions are rolled out, so they will be slightly delayed. CEO Elon Musk said the all-wheel steering technically requires a bit more attention before rollout as well.

After some owners got access to the v14.1 Full Self-Driving suite this morning, Cybertruck owners sought out a potential timeframe for when they would be able to experience things for themselves.

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Tesla owners show off improvements with new Full Self-Driving v14 rollout

They were able to get an answer from Ashok Elluswamy, Tesla’s Head of AI, who said:

“We got you. Coming soon.”

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The release of FSD v14.1 for Cybertruck will not be tempered, either. Elluswamy then confirmed that Tesla would be rolling out the full-featured FSD v14 for the pickup, meaning it would be able to reverse and park itself, among other features.

Elluswamy said it would be capable of these features, which were void in other FSD releases for Cybertruck in the past.

Tesla’s rollout of FSD v14.1 brings several extremely notable changes and improvements to the suite, including more refined operation in parking garages, a new ability to choose parking preferences upon arriving at your destination, a new driving mode called “Sloth,” which is even more reserved than “Chill,” and general operational improvements.

Those who were lucky enough to receive the suite have already started showing off the improvements, and they definitely seem to be a step up from what v13’s more recent versions were capable of.

CEO Elon Musk called v14 “sentient” a few weeks back, and it seems that it is moving toward that. However, he did state that additional releases with more capabilities would be available in the coming weeks, but many owners are still waiting for this first version.

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Tesla launches two new affordable models with ‘Standard’ Model 3, Y offerings

It is the first time Tesla has revealed any details about what it planned to launch in terms of its new, lower-cost vehicles, which are mainly aimed at countering the loss of the $7,500 EV tax credit.

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Credit: Tesla

Tesla has officially launched its affordable models with the new Model 3 and Model Y ‘Standard’ versions hitting the company’s Online Design Studio on Tuesday.

It is the first time Tesla has revealed any details about what it planned to launch in terms of its new, lower-cost vehicles, which are mainly aimed at countering the loss of the $7,500 EV tax credit.

Here’s what Tesla went with for its release of the new affordable models.

Tesla Model Y ‘Standard’

The Model Y Standard is a stripped-down version of the all-electric crossover and starts at $39,990.

Deliveries are slated for November and December, the company says if you plan to order one, and it comes with a few major changes to improve efficiency and bring down cost for owners.

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  • New athletically tuned exterior and new alloy wheels to improve aerodynamics
  • 15.4″ touchscreen in the front, the same as the other trims
  • Available in three colors: Stealth Grey (free), White ($1,oo0 extra), Diamond Black ($1,500 extra)
  • Textile and vegan leather interior
  • Range sits at 321 miles
  • New front fascia
  • Covered glass roof (textile on inside)
  • Windows are not acoustically laminated for a quieter cabin
  • Manual mirrors and seats
  • Smaller frunk
  • No rear infotainment screen
  • No basic Autopilot
  • 69 kWh battery
  • New 19″ Aperture wheels
  • 0-60 MPH in 6.8 seconds
  • 7 speaker stereo, down from 15 speakers in premium models

Tesla Model 3 ‘Standard’

The Model 3 Standard was a surprise offering from Tesla, as many had only anticipated the company to refine and offer a more affordable version of the Model Y.

Coming in at $36,990, it features many of the same changes Tesla made with the Model Y “Standard,” all ways to improve price and make it less flashy than the more premium offerings.

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Deliveries are also slated for November for this vehicle, and it features relatively the same stripped-down offerings as the Model Y Standard.

  • Available in three colors: Stealth Grey (free), White ($1,oo0 extra), Diamond Black ($1,500 extra)
  • Textile and vegan leather interior
  • Range sits at 321 miles
  • Covered glass roof (textile on inside)
  • Manual mirrors and seats
  • No rear infotainment screen
  • No basic Autopilot
  • 69 kWh battery
  • New 19″ Aperture wheels
  • 0-60 MPH in 6.8 seconds
  • 7 speaker stereo, down from 15 speakers in premium models
@teslarati 🚨 Tesla’s Affordable Models are here! Let’s talk about them! #tesla #fyp #viral #teslaev #elonmusk ♬ Natural Emotions – Muspace Lofi

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Tesla owners show off improvements with new Full Self-Driving v14 rollout

Some of the big things that Tesla faced head-on with the development and release of v14 were navigating in parking garages and handling parking after arriving at a destination.

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Credit: Tesla Europe & Middle East/X

Tesla owners with access to the company’s Full Self-Driving new version, v14, which rolled out on Tuesday morning, are showcasing some of the very impressive improvements that have arrived.

CEO Elon Musk called v14 “sentient” a few weeks ahead of its rollout, claiming the newest iteration of the company’s Full Self-Driving platform would be the most accurate to date.

Tesla FSD (Supervised) V14.1 with Robotaxi-style dropoffs is here

It was obvious this narrative had Tesla owners keeping their expectations high, as there were very evidently things that needed to be improved upon that were present in v13. I wrote about several improvements I was hoping to see, and based on the release notes for v14, Tesla did have these things in the works already.

Some of the big things that Tesla faced head-on with the development and release of v14 were navigating in parking garages and handling parking after arriving at a destination.

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Tesla said it was working to increase the capabilities of Summon within parking garages, as many owners believe that is where it would be the most beneficial.

While that does not appear to be part of this initial v14 rollout, it does seem Tesla is focused on improving the suite’s ability to navigate through these garages, including stopping for a ticket to enter the facility, finding a spot, and parking in an appropriate space.

It was evident this was a huge improvement based on one example from an owner who received v14:

If you look closely, you will even see the car shift slightly to the right when it arrives at the ticketing station, making it easier for the driver to hand over their ticket and payment. It then moves back out to the right when leaving to return to the center of the lane. It’s very intuitive.

Additionally, it appears to be more accurate when parking, thanks to improvements that enable owners to select the type of parking upon arrival at a destination.

In the v14.1 release notes, Tesla said that it has added “Arrival Options for you to select where FSD should park: in a Parking Lot, on the Street, in a Driveway, in a Parking Garage, or at the Curbside.”

One owner chose to navigate home and chose a garage to park in. Full Self-Driving performed it without any issues:

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These are just two evident improvements so far, and there are likely many more on the way. The changes and fixes will be tracked by anyone with access to FSD v14 in the coming weeks.

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