Battery
Published on 10 October October, 2020 |
By Chanan Bose
October 10, 2020 By Chanan Boss
Tesla’s battery day wasn’t just full of surprises. When you read between the slides, Tesla made a number of announcements, many of which are still awaiting their discovery. One of the things about this article is Tesla’s new battery pack.
What most people didn’t realize was that Tesla was abandoning its famous battery skateboard design. For those who didn’t know, until then, Tesla’s vehicles were made of bodies and the flat battery “skateboard” below, as Tesla would say, married in the factory. We also witnessed the ceremony in person. Originally, the skateboard design was developed because it offers a lower center of gravity and stronger safety benefits, as well as the ability to quickly replace battery packs instead of just supercharging if Tesla goes down that road.
Tesla Model S skateboard design
As you know, that last part doesn’t end there. Now Tesla is back on the drawing board to do something better. However, it was not out of Tesla’s habit to successfully recreate the cycle. The company is back on the drawing board because of its creamy off-crop f 4680 battery cells it needs. You see, in the past, the battery cells weren’t enough, so Tesla needed all the rooms he could find on the floor. If Tesla still had to do that, the vehicles would have an incredible range, but Tesla wouldn’t be able to make much of it.
Tesla had to settle a few issues. First, the company needed to find a way to simplify the battery pack and remove the modules. Next, without a skateboard, Tesla needed a new way to edge the structural integrity of the vehicle. All they did was turn the luggage into a structure in the same way that fuel tank-shaped wings are made by aircraft instead of non-fuel wings.
In some ways, the same trick Tesla has applied to its Starship design, where the body itself is part of the fuel tank. This is also not the first time that lessons learned in one company have been applied to another company’s products. In this case, the solution was a glue (material intended to be pun intended) that in the previous M models Dello acted not only as a glue and flame retardant, but also as a material to strengthen the pack. Between a sandwich or two steel sheets and you make the battery pack rock solid and sheer resistant. It no longer needs outside support. Unlike CATL, which has begun to put cells directly into the pack and remove the modules, this is practically a Cell to vehicle The solution, because the battery pack is no longer just an enclosure, is part of the design of the vehicle.
Tesla’s new pack kills more than 2 birds with one stone, however, there are many other things this new architecture has enabled. Now, without extending the battery pack to the front and rear of the vehicle, it has a more efficient crumple zone as well as more rooms. This leads us to even greater advantage. Sure, that extra room can be left empty and used for more luggage. Or, perhaps, instead of a larger franc, the vehicle would get a larger HPA filter enabling bioavailability protection mode. HPA Even with the filter, there will still be a larger number than today. It is difficult to overestimate how much extra room there will be, and part of it is probably. Will also extend to a larger cabin.
The end result? Tesla was beating around the bush a bit in terms of how effective structural integrity was. During Berry Day, Elon Musk hailed it as a good solution to the question of structural integrity of cabriolet vehicles, but did not directly compare it with internal combustion engine (ICE) vehicles or its own existing vehicles. Until one tweet this week, that is, in which Elon – coincidentally, responding to my tweet – made it clear that it is a tougher and bigger success.
The battery pack will be a bounded structure in which the cells provide shear transfer between the upper and lower face sheets of steel, removing most parts of the body while providing succession stiffness and improved polar moment or inertia. This is a * major * progress.
– Elon Musk (elonmusk) October October 7, 2020
Funny enough, it looks like he didn’t really answer my question. Or did he? You see, all of this is very much connected to the injection mold casting as well as the patent for the unibody design that we saw more than a year ago.
Tesla die cast unibody machine.
You see, with the new battery pack, Tesla can go to the next level with its unibody injection molding ambitions. In the end, this will only work if the floor is not part of the unibody, as the finished mold is pulled out from the top and then lifted by the machine. They don’t need to create a floor for structural integrity, as battery packs play that role. Tesla will likely move forward with this in stages. So, is it a coincidence that, whether the middle part of the Tesla vehicle will be cast as one piece, in answer to that question, Elon answers about the battery of success that will make it possible? Well, if you need more reassurance, here are some more “coincidences” below, starting with the exact quote from that patent:
“Such casting machines may reduce the casting machines or actual castings required to cast a complete or significantly complete vehicle frame (e.g., less than six, less than five, less than four, less than three, less than two, or one Casting machine (s). “
For the Model Y, or perhaps Giga Berlin’s 25,000 model placeholder, it is possible that Tesla will use a casting machine, as it does for the rear body assembly in Fremont, one for the front, and the next step, in the middle patent images. The body part will be added as published in one.
Most interestingly, the way the company currently stamps and welds this part of the body together, at some point it looks exactly like what appears in the picture above. The two side panels of exactly the same shape are then connected by two roof struts, one at the front that separates the hood section from the cabin, and the other at the rear. Thanks to the structural battery pack, the body can be cast and pushed out and forward of the machine.
Now, going back to my tweet, that was exactly what I was asking. In that tweet, I accidentally wrote “stamp” instead of “cast”, but when Elon replied about the structural battery in response to a question about unibody casting, I think Elon was confirming that the structural battery pack makes it possible. The patents clearly state that this casting technique can be done in parts, and not just like a unibody. It is quite possible that one is a step towards the other. It is also possible that the Unibody stamping will allow Tesla to build significantly 25,000 model placeholders or significantly cheaper vehicles, such as the final cheap robotaxi discussed in my previous article in this series of previous tree day articles.
This article was already written for the most part before Elon Musk responded to my tweet. At the time, I wrote that the actual unibody design would not be applied until Tesla could drive full automation and avoid crashes, as unibodies often go uncertain, and therefore have to be insured. However, Elon also responded to a comment on his tweet in which something new came out.
Crash absorption rails can be cut and replaced with bolted parts for collision repair
– Elon Musk (elonmusk) October October 7, 2020
This means that repair is not a limiting factor of unibody casting. That being said, though, Tesla isn’t likely to be implemented immediately. There is a possibility that Tesla could introduce this with its low-cost vehicle or low-cost robotaxi, and it would explain why both Giga Berlin and Giga Shanghai could introduce their own, different-looking vehicles – since it’s just a different unibody cast. Based on the same built-in battery architecture and casting technology. At the Fremont factory, we also saw how Tesla could turn a component in its casting machine to make different components that it stores in the factory’s warehouse section.
In any case, for the foreseeable future, there will still be a wedding ceremony in the factory, but it will not be a battery skateboard married to the body. For the interim measure, it will be married to a unibody and a structural battery with front and rear crimp zones that are completely separate from the unibody.
So, in the end, Tesla has abandoned the skateboard for its cheaper vehicles, but its replacement, structural battery safety, will not only increase safety and make more space in the vehicle for other purposes, but also bring the company closer to unibody. The stamping goal we saw laid in the patent.
So, instead of just removing the modules and moving to a cell-to-pack battery like CATL, here Tesla went a step further and invented a cell-to-body solution by making battery packs part of the structure instead of expensive cargo. Considering all we know now, when Elon Musk said that the Model Y made in Giga Berlin would be a perfect vehicle, he was not joking.
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About the author
Chanan Boss Chanan grew up in a multicultural, multilingual environment that often gives him a unique perspective on a variety of topics. He is always thinking about big picture topics like AI, Quantum Physics, Philosophy, Universal Basic Income, Climate Change, Science-Fi concepts such as loneliness, misinformation, and moving up the list. Currently, he is studying Creative Media and Technologies but has a Diploma in Environmental Science as well as Business and Management. Its goal is to discourage linear thinking, bias, and affirmative prejudice while encouraging blux-of-the-box thinking and helping people understand fatal progress. Chanan is very concerned about his future and the future of humanity. That is why they are so appreciative of Elon Musk and his companies, primarily because of their work, philosophy and intention to help humanity and its future. He sees Tesla as one of the few companies that can help save us from climate change.
