Tinker71
Well-known member
- First Name
- Ray
- Joined
- Aug 8, 2020
- Threads
- 82
- Messages
- 1,484
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- 1,967
- Location
- Utah
- Vehicles
- 1976 electric conversion bus
- Occupation
- Project Manager
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- #1
Sorry I have to do it again. With the recent announcement that Gigaaustin will produce both 2170 model Y and 4680 model Ys and that GigaBerlin will start with 2170 is clear to me Tesla might be struggling with the 4680s. They also said they won't switch Berlin over until late in the year.
The specifications for the Texas Y with 4680/structural pack are nothing to brag about either. (although they might be sandbagging for now)
LFP batteries and LFP pack design has really improved since 2019. I can't find my source but I thought they recently said that over half the Teslas now come with LFP prismatic cells. We know there are no material constraints with LFP. They are a little safer and more durable.
So my question is why wouldn't Tesla make the 250-300 mile range CT with LFP prismatic cells? Add back 2-300 lbs of structure and reduce the payload by that amount if need be.
My understanding is that mass produced LPF prismatic cells are currently 90 mm tall. The CT battery void is at least 160 mm tall. With the lower density and some intermediate structure there might not be enough room double stack the prismatic in the same space. This might require a 3 cm bulge in the floor pan. I would be ok with it if I got a cheaper CT2 faster.
If the LFP batteries could be made in the 4680 format then no redesign is required. Just a little heavier or maybe the same weight with less range than the CT3.
The specifications for the Texas Y with 4680/structural pack are nothing to brag about either. (although they might be sandbagging for now)
LFP batteries and LFP pack design has really improved since 2019. I can't find my source but I thought they recently said that over half the Teslas now come with LFP prismatic cells. We know there are no material constraints with LFP. They are a little safer and more durable.
So my question is why wouldn't Tesla make the 250-300 mile range CT with LFP prismatic cells? Add back 2-300 lbs of structure and reduce the payload by that amount if need be.
My understanding is that mass produced LPF prismatic cells are currently 90 mm tall. The CT battery void is at least 160 mm tall. With the lower density and some intermediate structure there might not be enough room double stack the prismatic in the same space. This might require a 3 cm bulge in the floor pan. I would be ok with it if I got a cheaper CT2 faster.
If the LFP batteries could be made in the 4680 format then no redesign is required. Just a little heavier or maybe the same weight with less range than the CT3.
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