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Tesla’s 4680 cell production process outlined in Giga Berlin’s revised filings

Credit: Tesla, Tobias Lindh/Twitter

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Tesla’s revised documents for Gigafactory Berlin have been posted online, and they are a treasure trove of information. The documents provided some new details about Tesla’s planned 4680 battery plant in Gigafactory Berlin, which Elon Musk noted is on track to be one of the world’s largest battery production facilities. They also outlined how Tesla’s 4680 cells are produced. 

While sections of the filing pertaining to the planned 4680 battery cell plant in Giga Berlin were blacked out due to sensitive information that could not be made public, the documents show some important tidbits about the upcoming facility. This includes the facility’s cell production operations over four floors, with anode and cathode production on the first floor and tabless cell production on the third floor. The battery plant is massive, requiring large foundations similar to Gigafactory Berlin’s Phase 1 zone. 

Most importantly, Tesla also submitted a simplified diagram of its 4680 battery cell production process, though most of the diagram was blacked out in the revised filing’s public release. However, the company provided a brief overview of how its new battery cell will be produced in the upcoming facility (roughly translated through Google Translate). 

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“The battery the Gigafactory Berlin requires special systems and process steps. The anodes and cathodes consist of coated current collector foils. Copper is used as the material for the anode foil and aluminum is used for the cathode foil. The anode and cathode components are manufactured in mixed processes (A020-01 and A020-02), which only use materials in powder form. The new materials used are tested and approved in our own laboratory (A020-11). 

“In order for the powder coating to adhere to the two films, they must first be pre-coated with a thin layer of adhesive (substrate) (A020-03 and A020-04). This substrate is delivered in containers. The pre-coating is necessary because a dry coating with powder takes place. After the anode and cathode components have been mixed, they are applied as a coating to the respective substrate-coated film in order to establish electrical contact (A020-05 and A020-06). The current collector foils, coated with the anode or cathode components, result in the finished anode or cathode. 

The revised filings also provided a general idea of how Tesla’s tabless cell production works. Among these is the fact that the finished 4680 cells would be subjected to 10 days’ worth of curing after their formation. 

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“The anode or cathode is then cut to the required lengths with a laser in the “tabless process” (A020-08). The anode, the cathode and the separator are alternately placed one on top of the other and rolled up into a roll. This roller is then inserted into a metal housing, which is manufactured from steel rollers in a die-cutting and deep-drawing process (A020-07). In the assembly area, the final assembly and filling of the cell takes place with small amounts of electrolyte (approx. 10% of the cell weight) (A020-09). 

“The electrolyte is absorbed by the electrode coatings and enables the lithium ions to move back and forth between the anode and cathode. The housing is then closed with a lid in a welding process. The last step is the formation (A020-10) of the cell. In the formation process, the cell is electrically started up by charging and discharging it under different temperature conditions. The finished cell remains in this area for approx. 10 days and is then put to further use. The cells produced are subjected to random quality control in our own laboratory (A020-11).” 

A link to Tesla’s filings for Gigafactory Berlin could be found here

Do you have anything to share with the Teslarati Team? We’d love to hear from you, email us at tips@teslarati.com.

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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.

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Elon Musk

Bill Gates estimates DOGE cuts will cost children’s lives, Elon Musk responds

Musk responded with choice words towards Gates.

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bill gates elon musk

During a recent interview with the New York Times, Microsoft cofounder Bill Gates shared a lot of criticism towards Tesla CEO Elon Musk and his work with the Trump administration’s Department of Government Efficiency (DOGE). Musk, for his part, responded with choice words towards Gates. 

Bill Gates on DOGE

In his NYT interview, Gates lamented the fact that funding has been cut for programs that are supposed to help children abroad. Referencing the DOGE cuts made to the money going to Gaza Province in Mozambique, Gates stated that the people doing the cutting are not the most knowledgeable. 

“They cut the money to Gaza Province in Mozambique. That is really for drugs, so mothers don’t give their babies H.I.V. But the people doing the cutting are so geographically illiterate, they think it’s Gaza and condoms. Will they go meet those babies who got H.I.V. because that money was cut? Probably not,” Gates noted, adding that there will be “millions of additional deaths of kids” because of the cuts.

The Microsoft cofounder also admitted that he was surprised at the cuts that the Trump administration has implemented through the guidance of DOGE. As per Gates, he expected U.S.A.I.D. to receive a cut of about 20%, but the administration cut far more. “The reductions to U.S.A.I.D. are stunning. I thought there’d be, like, a 20% cut. Instead, right now, it’s like an 80% cut. And yes, I did not expect that,” he said.

Gates and Musk

Considering the nature of the interview, it was no surprise that Elon Musk himself was brought up as a topic. When the Times noted that Musk was not giving much away to the needs of the world’s poor, Gates stated that the Tesla CEO was ultimately the one who pushed for the cuts on U.S.A.I.D.’s budget. These cuts, Gates argued, effectively involve Musk in the deaths of the world’s poorest children.

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“Well, he’s the one who cut the U.S.A.I.D. budget. He put it in the wood chipper, because he didn’t go to a party that weekend… the world’s richest man has been involved in the deaths of the world’s poorest children,” Gates stated. Musk, in response, stated in a post on social media platform X that “Gates is a huge liar.”

Musk and Gates have not really gotten along, thanks in no small part to the Microsoft co-founder putting a $500 million short bet against Tesla. In Walter Isaacson’s Elon Musk biography, Gates stated that he was shocked that Elon Musk was super mean to him after the Tesla CEO found out that he shorted Tesla. “Once he heard I’d shorted the stock, he was super mean to me, but he’s super mean to so many people, so you can’t take it too personally,” Gates noted.

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Tesla Full Self-Driving changes your perception of travel — long or short

Tesla Full Self-Driving will ruin controlling your vehicle manually.

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Credit: Tesla

Tesla does not tell you what Full Self-Driving will do to your perception of travel. Whether your next trip is a two-minute ride up the street to the grocery store or a 1,500-mile trip across multiple states, you’ll never look at driving the same way.

This past weekend, I was lucky enough to have a new Tesla Model Y for the weekend. Equipped with the company’s Hardware 4 computer, the latest software version, and all of the new Model Y’s improvements from the legacy iteration, I knew much of my weekend would be spent testing FSD, as I have never had an extended experience with it.

By the time the weekend was over and it was time to pick up my non-Tesla car, I realized I was not ready to let go. Having the car drive me around from location to location all weekend was something I truly enjoyed, but it was more than just a convenience thing. I felt impressed, relaxed, and even, in some instances, safer.

What Tesla Full Self-Driving Did Well

Now, before I truly begin, I do want to say that I don’t think I’ll ever feel safer than when I’m in ultimate control of the vehicle. However, a lot of things that give me stress during a drive were handled with relative ease by the car — and I was happy I didn’t have to deal with it.

One instance was merging onto a busy highway with a very short merge lane. Full Self-Driving took a no-holds-barred approach, taking the space it was given and grabbing a spot in the right lane quickly.

It was not willing to be passive, but it was also not willing to sacrifice safety. It will not wait for others to pull the trigger and go at intersections or four-way stops. If there are a few seconds of stagnation from the car and another driver in that instance, it will go, of course, proceeding safely.

It even did a handful of things I didn’t expect it to do. It would stay in the right lane if multiple on-ramps were approaching. I took it on a stretch of highway where three on-ramps are all within a mile of one another.

It passed a tractor-trailer just before we made it to the first of those three on-ramps. It stayed in that left lane after overtaking the 18-wheeler, as Driver Visualization showed more cars approaching to merge. It was one of those moments that, even though I have written about this topic for several years, was unbelievably impressive.

It not only drives people safely, but it is also considerate of other drivers, which is very impressive.

I was incredibly surprised to see my Fiancè have so much ease when it was operating.

I figured, just because she is not as familiar with what Tesla does to make FSD better and how it works, that she would be very on edge during our rides. This was the opposite. She felt comfortable enough to look away from the road while in the passenger seat. Scrolling her phone or looking out at the blooming flowers was what she did in the car. It was no different from when I’m driving, and I think that was what was most impressive to me.

Driving after FSD

I found that picking up my car and driving manually back home truly brought me back to real life. Everyone with a Tesla and Full Self-Driving says that when you go back to another car, you feel like you’re stuck in the past.

I really did feel that way. Not only because of the aesthetic of the interior, but just because I was doing something that I just realized could be done for me with the right vehicle.

While I love the car I own now, I’m still deciding whether I love it enough to keep it. To be completely honest, I have hopped around with the idea of trading in my car for the new Model Y. Whether I will or not truly depends on the next few weeks and how I feel, but I know that I will be considering it for the next few months easily.

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Anti-Elon Musk group crushes Tesla Model 3 with Sherman tank–with unexpected results

Ironically enough, the group’s video ended up highlighting something very positive for Tesla.

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Credit: Led By Donkeys/X

Anti-Elon Musk protesters and critics tend to show their disdain for the CEO in various ways, but a recent video from political action group Led By Donkeys definitely takes the cake when it comes to creativity.

Ironially enough, the group’s video also ended up highlighting something very positive for Tesla.

Tank vs. Tesla

In its video, Led By Donkeys featured Ken Turner, a 98-year-old veteran who served in the British army during World War II. The veteran stated that Elon Musk, the richest man in the world, is “using his immense power to support the far-right in Europe, and his money comes from Tesla cars.” 

He also noted that he had a message for the Tesla CEO: “We’ve crushed fascism before and we’ll crush it again.” To emphasize his point, the veteran proceeded to drive a Sherman tank over a blue Tesla Model 3 sedan, which, of course, had a plate that read “Fascism.” 

The heavy tank crushed the Model 3’s glass roof and windows, much to the delight of Led By Donkeys’ commenters on its official YouTube channel. But at the end of it all, the aftermath of the anti-Elon Musk demonstration ended up showcasing something positive for the electric vehicle maker.

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Tesla Model 3 Tanks the Tank?

As could be seen from the wreckage of the Tesla Model 3 after its Sherman encounter, only the glass roof and windows of the all-electric sedan were crushed. Looking at the wreckage of the Model 3, it seemed like its doors could still be opened, and everything on its lower section looked intact.

Considering that a standard M4 Sherman weighs about 66,800 to 84,000 pounds, the Model 3 actually weathered the tank’s assault really well. Granted, the vehicle’s suspension height before the political action group’s demonstration suggests that the Model 3’s high voltage battery had been removed beforehand. But even if it hadn’t been taken off, it seemed like the vehicle’s battery would have survived the heavy ordeal without much incident.

This was highlighted in comments from users on social media platform X, many of whom noted that a person in the Model 3 could very well have survived the ordeal with the Sherman. And that, ultimately, just speaks to the safety of Tesla’s vehicles. There is a reason why Teslas consistently rank among the safest cars on the road, after all.

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