TheLastStarfighter

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Munro & Co. have begun their teardown of the Cybertruck battery.



Tesla Cybertruck Battery Pack Teardown Photos Reveals Empty Spaces (Sandy Munro Live) GKLwWH-WkAEwqPm
Tesla Cybertruck Battery Pack Teardown Photos Reveals Empty Spaces (Sandy Munro Live) GKLwWIEXwAAkf4I


Interestingly, there is a lot of space above the cells. It doesn't appear to be enough for another layer, but it is a curious amount of emptiness. Is it needed for cooling? Could the originally-planned double-stacked pack be achieved with an only slightly taller pack?
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Interestingly, there is a lot of space above the cells. It doesn't appear to be enough for another layer, but it is a curious amount of emptiness. Is it needed for cooling? Could the originally-planned double-stacked pack be achieved with an only slightly taller pack?
The plate above that has ripples in it for structure. It still needs structure as they're assembling it.

There also needs to be expansion space, so that gasses can escape during a collision or failure.

-Crissa
 

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So that is the bottom side of the pack. I'm assuming they left an air gap to prevent cell damage from underbody impacts during off-roading. And that air gap leaves a spot for any water to collect away from the cells IF there is any intrusion at any point.

Could also be some design protection for 4695 cells.
 
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TheLastStarfighter

TheLastStarfighter

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The plate above that has ripples in it for structure. It still needs structure as they're assembling it.

There also needs to be expansion space, so that gasses can escape during a collision or failure.

-Crissa
I haven't looked at other teardowns. Is there similar space in the Model Y pack?
 


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So that is the bottom side of the pack. I'm assuming they left an air gap to prevent cell damage from underbody impacts during off-roading. And that air gap leaves a spot for any water to collect away from the cells IF there is any intrusion at any point.

Could also be some design protection for 4695 cells.
I wonder if the battery lines could be adapted for a taller cell with relative ease. That is a lot of dead space. Very encouraging.
 

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I just saw this CT battery pack teardown posted to munro live on twitter: .

The pack clearly has extra room for taller cells. It makes a lot more sense now that Rivian was talking about 4690 cells and I think Samsung has been planning to make 46120 cells. Tesla must have plans to make or acquire taller 46XX cells at some point for the CT! The range extender must be a holdover and suggests to me that Tesla thinks they need to make the range extender because they won't have taller cells anytime soon.
 

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Question: Is the 4680 batteries produced in Austin will improve its energy density in the future?? correct
 


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1. New Chemistry Set To Give Tesla's 4680 Battery Cells a Significant Energy Density Boost

https://www.autoevolution.com/news/...-significant-energy-density-boost-227146.html

2. Tesla 4680 Battery Chemistry Upgrade for 20% Energy Improvement in First Half of 2024

https://www.nextbigfuture.com/2024/...energy-improvement-in-first-half-of-2024.html

3. Tesla is also experimenting with an "asymmetric lamination" process, where one side of the laminated battery material is thicker than the other. This is aimed at allowing more of the active material to be packed into the 4680 cell casing, further boosting energy density.

https://www.autoevolution.com/news/...-significant-energy-density-boost-227146.html

Andrew Baglino stated multiple times that the chemistry, manufacturing, and materials improvements are expected to be implemented in the first half of 2024, leading to a 10-20% increase in the energy density of the 4680 cells compared to the initial versions.

Since tesla is expending their battery manufacturing to 8 lines by the end of this year, they may have improved the batteries energy density by at least 10% by now.

based on all of this I want to wait to the end of 2024 possibly because I can get better range??? What do you guys think??
 

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If tesla improve the 4680 energy density by 10-20% are they going to reduce the number of battery cells in the pack or are they going to offer it to its customers by improving the range by 10-20%??

Either way we will get better batteries with faster charging capacity?? I know that the early Model Y made in Austin with the 4680 batteries were really bad and not better than the 2170.
 

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So that is the bottom side of the pack. I'm assuming they left an air gap to prevent cell damage from underbody impacts during off-roading. And that air gap leaves a spot for any water to collect away from the cells IF there is any intrusion at any point.

Could also be some design protection for 4695 cells.
I didn’t think it was the bottom at first but you are right and the proof is in these 2 pics.

I checked the model Y tear down and since that was also a structural pack I assume it was opened from the bottom (no proof) but it doesn’t have NEAR the amount of gap below the cells.

Tesla Cybertruck Battery Pack Teardown Photos Reveals Empty Spaces (Sandy Munro Live) IMG_5906
Tesla Cybertruck Battery Pack Teardown Photos Reveals Empty Spaces (Sandy Munro Live) IMG_5904
 
 




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