Tesla Shows First 4680 Cells And Pack

[MEDICALJMP]

https://insideevs.com/2020/11/25/
By MKane

New images and visualization are available on "Join the Cell Team" website, where Tesla looks for talent.

The new Tesla 4680 cylindrical battery cells, with the shingle spiral approach, are one of the hottest topics in the EV world, as this new design can translate into 30% more range without even improving the chemistry.
The reason for that is the optimization of the size, new design to improve performance (electrical, thermal) and making the batteries a structural element of the car.

Tesla recently released a new visualization of how the cells will be arranged inside the pack, without the use of modules inside. There are about 960 cells (40x24), instead of several thousands of the 2170 type. That's enough because the 4680 stores around 5 times more energy. Energy density might reach/exceed 300 Wh/kg.
The images and videos from the pilot production line in California are available at the Join the Cell Team website, where Tesla is looking for literally hundreds or maybe even thousands of talented workers to support its battery business expansion to uncharted areas of technology - where "Tera is the New Giga".

Some lucky engineers are already working on refining the production process before Tesla will trigger 100+ GWh cell plants.

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[Newton]

But in all seriousness I'm pleased they are making a battery specific factory/ going balls to the wall on cell production

 

[ajdelange]

The factors are 5,2,2,2,2,2,2,3 = 96*10. As the nominal cell voltage is 3.7 a 96s10p configuration would give a nominally 355 V battery which seems about right. I guess 120s,8p might work but at full charge that would have us up over 500 V which seems a little high and it also seems that the fewer cells in series the easier the balancing task. So they may be packaged in a 40*24 matrix but they are going to have to be wired 96s,10p.

 

[azjohn]

based on this can we figure out the KWH of the CT pack?

 

[Crissa]

based on this can we figure out the KWH of the CT pack?

The image has exactly the same number f cells as Munro estimated, 960. So his estimate of 130kWh is best you're going to get.

The problem is that's based off the footprint of a Model 3/Y battery pack. The wheelbase of the Cybertruck is 32% longer, so if we assume merely a longer pack, that's 172kWh. But we have no idea the watts per mile consumption of the Cybertruck... 172/300 is at the upper watts per mile estimate.

-Crissa

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